Re: bgp questions

2001-02-14 Thread Howard C. Berkowitz

I would choose D , correct me if I am wrong
--- David Tran [EMAIL PROTECTED] wrote:
  I have this question on my cisco prep exam
  fill-in-the-blank.  Please =
  help.

  A BGP router reports all activate routes based from
  BGP __.  This is =
  the default policy action for BGP routers.

  A. to all BGP peers
  B. to all IBGP peers
  C. to all EBGP peers
  D. and the IGP's configured on the router to all BGP
  peers

  I select choice a.  Is it correct?

  David Tran
   [EMAIL PROTECTED]
  


It's a poorly written question.  If I was forced to pick, but I don't 
understand the first sentence.

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Re: MCMSN question

2001-02-14 Thread Larry Lamb

Well I'll know more on this tomorrow evening as I'll be taking the exam
tomorrow, but I suspect MLS is going to be very heavy with a little HSRP.
IP Multicast seems to be another hot area as well.

""Phantom"" [EMAIL PROTECTED] wrote in message
96dcu7$1kb$[EMAIL PROTECTED]">news:96dcu7$1kb$[EMAIL PROTECTED]...
 Hi group

 I'm studying for BCMSN. Could anyone give me some tips for this one. How
 much do they ask on MLS and HSRP. What are the hot spots.

 Thanks


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Re: MCMSN question

2001-02-14 Thread Stephen Skinner


Ahhh Excelent

Some things to know well for the exam 

Know your switches (and what and where they are used...Acces,Dist..etc)
Know the different commands 19 V 29 V 50 they will be asked.
Know about CGMP..know HSRP concepts ...dosn`t dwell on it much
MLSbetween 5-20 questions dependent on which exam they download (i`m 
told there are a pool of around 500 Q`s which go to make up a 65 Q 
exam)...so know it Well...all what diff machines can run it 
...LG,4xx6,5,6...
a few STP ...but no dwelling again...
Ermm...it was only 3 weeks ago ...but i passed routing on sat so mind`s a 
blank

HTH


STEVE

From: "Phantom" [EMAIL PROTECTED]
Reply-To: "Phantom" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: MCMSN question
Date: Wed, 14 Feb 2001 08:34:54 +0200

Hi group

I'm studying for BCMSN. Could anyone give me some tips for this one. How
much do they ask on MLS and HSRP. What are the hot spots.

Thanks


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CIT question

2001-02-14 Thread jack

Hi all,

I am reading for the CIT exam and I saw something in the book
that seems alittle bit strange:
It says that in the   sh int serial 2/3command the bandwidth =
parameter is
   used to compute IGRP metrics only.
Does this means that we don't care (if we don't play with IGRP) what is =
the speed=20
of the connected line? Lets say that if we have an E1 line and the BW is =
256kbps,
the interface will play on 2048kbps ?
I think that it will play on 256kbps.
I am a little bit comfused.
Any help?


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Digital DECbrouter 90T2a password recovery

2001-02-14 Thread Hinds, Christopher

Hi,

I'm familiar with the password recovery techniques on Cisco kit but I can't
see how to get the enable password or change the configuration register on a
Digital DECbrouter 90T2A I have been given. Any help would be greatly
appreciated. IOS is 10.3
Many thanks

Chris Hinds
Network Administrator
Comdirect UK
[EMAIL PROTECTED]






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Connection via 800 is dropped by ISP even if the dialer idle-timeout is set

2001-02-14 Thread Mauro Conosciani

Hi everyone
I've got an 800 connect via ISDN to my ISP the idle-timeout is set to 6000
but it's dropped anyway after 220 seconds even if traffic is passing
through.
Any idea (maybe isp doesn't like having a router conect rather than a modem
?)
Thanks



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Log message from Cat4006

2001-02-14 Thread Lim Kok Hua

Hi

Anyone can advise on the following message from a Cat 4006 switch ?

%SYS-4-P2_WARN: 1/Filtering Ethernet MAC address of value zero from agent
host table interface


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Re: BPX going out of style?

2001-02-14 Thread John Nemeth

On Jul 3,  3:55am, "Howard C. Berkowitz" wrote:
} 
} Photonic switching, where traffic is rerouted based at the high-speed 
} stream level rather than the packet or cell level, isn't here in 
} production, but it is coming rapidly.  Photonic switching will 
} complement, not replace, routing.  Please do not get me started on 
} the buzzword of "optical routing."  With the capacity of newer 

 Okay, how about lambda swtiching? :-)

}-- End of excerpt from "Howard C. Berkowitz"

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Command line sniffer

2001-02-14 Thread Christophe_Bianco

Hello,

Is somebody know a command line sniffer for windows NT ?

regards,
Christophe.

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Re: CIT question

2001-02-14 Thread Stephen Skinner


what i think you are saying is a bit off the mark.

let me try and explain what i THINk your saying.

you said
I am reading for the CIT exam and I saw something in the book
that seems alittle bit strange:
It says that in the   sh int serial 2/3command the bandwidth =
parameter is
used to compute IGRP metrics only.
Does this means that we don't care (if we don't play with IGRP

under the sh int serial command the bandwidth statment says the total 
bandwidth availible out that port if under igrp you only have a 256k 
line connecting to this port ...AND you use the bandwidth command to say use 
50% it will use 50% of what the serial port is set to .in this case 2048 
(50% of this is 1024)

Does this means that we don't care (if we don't play with IGRP

depends
OSPF...EIGRP...IGRP iwould say yes we do .
BGP.. i would say not really (but i know i`m going to get shouted at for 
saying that)
RIP...`course not

what is =
the speed=20
of the connected line? Lets say that if we have an E1 line and the BW is =
256kbps,
the interface will play on 2048kbps ?
I think that it will play on 256kbps.

i`ve never heard of this "speed" command "bandwidth" YES..so i`m afraid i 
can`t comment ...

ANYONE.

HTH steve


From: "jack" [EMAIL PROTECTED]
Reply-To: "jack" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: CIT question
Date: Wed, 14 Feb 2001 10:47:26 +0200

Hi all,

I am reading for the CIT exam and I saw something in the book
that seems alittle bit strange:
It says that in the   sh int serial 2/3command the bandwidth =
parameter is
used to compute IGRP metrics only.
Does this means that we don't care (if we don't play with IGRP) what is =
the speed=20
of the connected line? Lets say that if we have an E1 line and the BW is =
256kbps,
the interface will play on 2048kbps ?
I think that it will play on 256kbps.
I am a little bit comfused.
Any help?


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Re: CIT question

2001-02-14 Thread Bradley J. Wilson

Your assumption is correct: the "bandwidth" parameter has no bearing on the
actual speed of the line.  If your provider is giving you 256k, then you'll
run at 256k.  However, the router will *assume* that you're running at T1
speed by default, and will use that bandwidth (1.544mbps) in its (E)IGRP
metric calculation.  To show how this works, don't set your bandwidth
parameter, and look at your metrics.  Then change your bandwidth to 256k,
and your metrics will jump astronomically.

BJ


- Original Message -
From: jack
To: [EMAIL PROTECTED]
Sent: Wednesday, February 14, 2001 3:47 AM
Subject: CIT question


Hi all,

I am reading for the CIT exam and I saw something in the book
that seems alittle bit strange:
It says that in the   sh int serial 2/3command the bandwidth =
parameter is
   used to compute IGRP metrics only.
Does this means that we don't care (if we don't play with IGRP) what is =
the speed=20
of the connected line? Lets say that if we have an E1 line and the BW is =
256kbps,
the interface will play on 2048kbps ?
I think that it will play on 256kbps.
I am a little bit comfused.
Any help?


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Azlan CCIE training UK

2001-02-14 Thread Ged Bowey

Hi all, has any one any experience of the CCIE RS training program Azlan
provide. I would like feed back as to the quality of the training and it's
relevance.

Cheers Ged Bowey CCNP.


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Exam Preperation for 640-504 or 640-441 ???

2001-02-14 Thread Michael W. Nord

Which software can be used to prepare myself for exams and test 
simulation for cisco certifacition mentioned above?
Thanks, Michael Nord 

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Re: BPX going out of style?

2001-02-14 Thread John Nemeth

On Jul 6,  1:28pm, "Brian Lodwick" wrote:
}
} I have heard many tales of how ATM will explode soon, will be partenered 
} perfectly with DSL, and everyone will implement it, but I just haven't seen 
} it. I like the idea of improving technologies your engineering and support 
} staff are familiar with (Not counting new technology with old names like 
} IPv6). I hope this is able to work out, and isn't too far down the road.

 IPv6 is coming.  There are just too many shortcomings in IPv4 that
can't be solved using hacks.  The biggest being the lack of address
space.  It really isn't a question of "if" but rather "when".

} Is there any talk of using smaller tags in IP to create big pipes similar to 
} ATM's VCI's so that you could lower the ip address  mask-lookup processor 
} overhead on backbone IP routers? I think this would be a neat idea. Even 

 You've just described MPLS.

} though the CAM table is fast the router must still read the entire address 
} and mask. Small pipe identifiers could be inserted into the ip header and 
} extracted at the gateways and lookup would be lowered. Like xtags on VLANS.

 IP headers are only 20 bytes and aren't much of a problem.  The
real problem is with compression, encryption, access lists, etc.  Check
out this URL for a study on what happens when access lists are used:
http://www.nwc.com/1004/1004ws2.html

}-- End of excerpt from "Brian Lodwick"

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RE: VTY LINES NON EXISTENT!!!!

2001-02-14 Thread John Nemeth

On Jul 6,  7:16am, "Leigh Anne Chisholm" wrote:
} 
} You'll notice that when you access your Catalyst switch via the console
} port, that without issuing any sort of password, you're immediately able to
} access several commands on the switch -- you've immediately got access to
} "user mode".  In some organizations, this can present a security risk.  Can

 Yeah, I noticed this and found it rather surprising, not to
mention disturbing.  Especially, when you consider that the standard
software doesn't have this problem (of course, it doesn't have the
"enable" mode distinction, or a CLI for that matter).

} you set a "user-mode" password for the Catalyst 1900 series switch?  If so,
} how?

 Somebody has already shown that it can be done.  Digging through a
switch, the only thing that comes to mind is TACACS?  However, setting
up TACACS just for a couple of switches seems like a big waste.

}-- End of excerpt from "Leigh Anne Chisholm"

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RE: bgp questions

2001-02-14 Thread Andrew Cook

I sent this to the originator only...

-Original Message-
From: Andrew Cook [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 12, 2001 3:52 PM
To: David Tran
Subject: RE: bgp questions


I would say the answer is C.  BGP will not send routes learned from internal
peers to other internal peers.  That's why some form of full-mesh,
reflectors, or confederations is necesary for internal BGP.
That rules out A and B, and D isn't true without redistribution.

Andrew Cook

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
 David Tran
 Sent: Monday, February 12, 2001 11:54 AM
 To: [EMAIL PROTECTED]
 Subject: bgp questions


 I have this question on my cisco prep exam fill-in-the-blank.  Please =
 help.

 A BGP router reports all activate routes based from BGP __.  This is =
 the default policy action for BGP routers.

 A. to all BGP peers
 B. to all IBGP peers
 C. to all EBGP peers
 D. and the IGP's configured on the router to all BGP peers

 I select choice a.  Is it correct?

 David Tran
 [EMAIL PROTECTED]


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RE: Log message from Cat4006

2001-02-14 Thread Stuart Potts

Hi

The message you see on the cat4000 means that the catalyst saw a frame with
a null source MAC address and informs you that it will not learn that MAC
address and thus not add it into the CAM table.
These messages are not displayed on cat5000 because the necessary code for
displaying them is not there.

Possible causes for having a NULL mac address: a smartbit sending such
frames, a router or station which MAC address has been modified or sometimes
other vendor switches use such null MAC address as source MAC address (3Com
for instance).

If none of the above causes apply to your network, the only ways to remove
these messages are:
1) use a sniffer to find out which machine is sending such frames
2) change the logging level so the messages are not displayed anymore. This
only clears the logging but does not resolve the exact problem (it only
masks it).
You can change the logging level by using the following command:
set logging level sys 3



Regards,


/Stuart



 -

 |   |  Stuart Potts
||| ||| Customer Support Engineer
  .|. .|.
   .:|:.:|:.Phone: (44) 1908 203478
c i s c o S y s t e m s Email: [EMAIL PROTECTED]

 "Empowering the Internet Generation"
-

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Lim Kok Hua
Sent: Wednesday, February 14, 2001 9:47 AM
To: [EMAIL PROTECTED]
Subject: Log message from Cat4006


Hi

Anyone can advise on the following message from a Cat 4006 switch ?

%SYS-4-P2_WARN: 1/Filtering Ethernet MAC address of value zero from agent
host table interface


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frame relay question

2001-02-14 Thread charles paver

htmlDIVHi.nbsp; WOuld someone please explain to me why in the WORLD do I not need 
to have one router configured as a frame relay switch if I have two routers 
piggybacked, and both have built in csu/dsu's?nbsp; That makes no sense to me!nbsp; 
/DIV
DIVnbsp;/DIV
DIVIf I have two routers back to back with the serial cables, fine.nbsp; I 
understand that--just configure one as a switch, and it will work.nbsp; But I have 
two with built in csu/dsu's and cant get up/up for the life of me.../DIV
DIVnbsp;/DIV
DIVThanks/DIVbr clear=allhrGet your FREE download of MSN Explorer at a 
href="http://explorer.msn.com"http://explorer.msn.com/abr/p/html

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RE: Connection via 800 is dropped by ISP even if the dialer idle-timeout is set

2001-02-14 Thread White, Shanice

My calls are dropped via the telephone port after a few seconds of pickup.
Seems to work only 5% of the time.  I have a Cisco 804.

-Original Message-
From: Mauro Conosciani [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, February 14, 2001 4:30 AM
To: [EMAIL PROTECTED]
Subject: Connection via 800 is dropped by ISP even if the dialer
idle-timeout is set


Hi everyone
I've got an 800 connect via ISDN to my ISP the idle-timeout is set to 6000
but it's dropped anyway after 220 seconds even if traffic is passing
through.
Any idea (maybe isp doesn't like having a router conect rather than a modem
?)
Thanks



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Re: alternative to Cisco routers

2001-02-14 Thread John Nemeth

On Jul 6, 12:56pm, "Howard C. Berkowitz" wrote:
} 
} I am having this horrible pang of sympathy, then, trying to picture 
} you making a very reasonable demand of the TAC to escalate the 
} problem.  Let's put it this way.  Legal Seafoods, one of the best 
} chains (admittedly small--Massachusetts and the DC area), is owned by 
} the Berkowitz family. No relation that I know of, but I get truly 
} strange looks when making a reservation.

 When I was in university, there was a physics prof that sometimes
substituted for my regular prof, whose last name was "Beer".  You can
bet that a lot people thought it wasn't real.  If nothing else, that
taught me that even the weirdest names can be real.

}-- End of excerpt from "Howard C. Berkowitz"

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Re: alternative to Cisco routers

2001-02-14 Thread John Nemeth

On Jul 6, 12:09pm, "Howard C. Berkowitz" wrote:
} 
} To be honest, I hate to see product bashing on this list. I cringe 
} when I see people starting out with "I have this bug in my production 
} network."  My first reaction is "and what did the TAC say about it?"
} 
} If the response is "I don't have a support contract,"  my response is 
} "then you deserve the problems you have."  It's one thing for someone 
} not to buy support for a home lab, but anyone (except possibly 
} high-level resellers) who doesn't is a fool.

 I wouldn't be so quick to say that.  A lot of companies want/need
the best, i.e. Cisco gear, but their budgets are somewhat tight.  Cisco
support is generally considered to be very good.  But, one of the
complaints I frequently hear is the cost of it, as well as the
equipment.  However, the latter problem has much improved.  New
equipment is considered to be capital expenditure and is much easier to
handle then yearly on-going expenses.

} Perhaps I'm in a bad mood today about negativism, if that isn't 
} circular logic.  It's far too easy to slam anonymously on this and 

 I don't think so; although, it might be recursive.

}-- End of excerpt from "Howard C. Berkowitz"

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Re: alternative to Cisco routers

2001-02-14 Thread John Nemeth

On Jul 6,  4:09pm, "Howard C. Berkowitz" wrote:
}
} This is all well and good for the big time players, ISPs, big corps
} yadda yadda yadda, and companies with cash to burn like so much old toilet
} paper. The Small and Midsized Business market (SMB) almost always can
} accomplish what they want with free Unix or Linux for layer 3 and
} cheap stackable switches with or without 802.1q support.
} 
} So my obligatory cisco alternative:
} www.zebra.org
} 
} And, in a non-information technology related SMB, who installs and supports it?

 Why, the secretary, who uses the computer a lot and knows a lot
about them, of course.  :-  Or for those slightly more sophisticated,
a computer store tech. who porbably knows next nothing, but runs Linux
on his PC at home.

}-- End of excerpt from "Howard C. Berkowitz"

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Re: Cisco CD on Windows 98

2001-02-14 Thread RCL

Same Differance:
http://www.cisco.com/univercd/home/home.htm


--- ccie sin [EMAIL PROTECTED] wrote:
 Hi , 
 Was trying to install Cisco CD on my windows 98 .
 But was not successful , on the third try :(
 Any one here has any idea ?
 Do the Cisco CD work with windows 98 
 
 
 
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=
= = = = = = = = = = = = = = = = = =
Please send replys to:

[EMAIL PROTECTED]
= = = = = = = = = = = = = = = = = =

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Re: alternative to Cisco routers

2001-02-14 Thread John Nemeth

On Jul 6,  4:37pm, "Mask Of Zorro" wrote:
} From: "Howard C. Berkowitz" [EMAIL PROTECTED]
} To: [EMAIL PROTECTED]
} Subject: Re: alternative to Cisco routers
} Date: Tue, 13 Feb 2001 21:34:15 -0500
} 
}  This is all well and good for the big time players, ISPs, big corps
}  yadda yadda yadda, and companies with cash to burn like so much old 
} toilet
}  paper. The Small and Midsized Business market (SMB) almost always can
}  accomplish what they want with free Unix or Linux for layer 3 and
}  cheap stackable switches with or without 802.1q support.
}  
}  So my obligatory cisco alternative:
}  www.zebra.org
} 
} And, in a non-information technology related SMB, who installs and supports 
} it?
}
} Some overworked, under-paid college kid with nothing but time on his hands 
} to learn all this stuff and thirst for it that leaves him with a list or 
} certifications as long as my arm... I run into these kids every day in the 

 And, who has probably never ran a production server in his life.

 Of course, you also get the people that are too cheap to pay for
proper support.  I ran into a case of this not long ago.  A local
company that develops high end Oracle applications had their Linux
"firewall" hacked and it was being used to attack other sites.  They
are using @Home.  They need their Internet connection in order to
Conduct business, and they got cutoff until their system was fixed.
When they found out what it would cost for me to rebuild the box
properly, they decided not to use me.  Instead they used some kid that
did it for $30.  Gee, isn't that what got them into trouble in the
first place?  Of course, given what they do, if I were to ask them to
do even a really simple thing for $30, they probably wouldn't even give
me the time of day.  Even some technology oriented companies aren't
very bright.

 Anyways, I'm not desperate enough for business that I will lower
my rates to compete with kids that don't know what they are doing.  At
that rate, I would have to be extremely high volume in order to be able
to eat, which means that my quality would suffer big time.

} field. My hat's off to 'em! They forge new ground, but sooner or later they 

 Maybe so, but that doesn't mean that they should be building
business critical systems.

}-- End of excerpt from "Mask Of Zorro"

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Re: alternative to Cisco routers

2001-02-14 Thread John Nemeth

On Jul 6,  2:30pm, "dre" wrote:
}
} I disagree, Linux is a bad choice!  A Cisco 3640
} router would cost about the same and I'd like to see

 Gee, I'd sure like to know where you get your routers...

} you get a full BGP table with Linux for the same
} hardware cost.  plus, linux doesn't have CEF or
} any of the standard stuff that comes with IOS

 It definitely wouldn't have the forwarding performance or
stability.

} The SMB market does what they will, and who
} cares anyways?  They have *no* market share,
} they aren't Internet players, they aren't market
} players, they are NOTHING.  what they DON'T

 Cisco disagrees with you.  Actually, I do too.  Individually, they
may not be much; but, together they are a huge market.  The enterprise
market is starting to get full whereas the SMB market is just really
getting into technology.

} NEED is another strange weird solution that I would
} only put into a lab ; they need something standard,
} something that works, something that will scale,
} something that will perform up to their needs,

 I will agree with this.  The trick is finding companies that are
willing to spend the money to do it right.  If they aren't, then move
on since they won't be worth the aggravation.  On the other hand, if it
is a really small company that only has a single server, then having it
also act as their Internet gateway isn't necessarily a bad thing.

} and something that most $20/hour NT admins
} could configure.

 I'd be scared to have to depend on a router that was configured by
a $20/hour NT admin.

}-- End of excerpt from "dre"

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Re: CCIE RS Going to be Replaced..!!

2001-02-14 Thread John Nemeth

On Jul 6,  7:38pm, "Rodgers Moore" wrote:
}
} Witches or not, think about this.  Cisco is end of lifing the 2500 series
} this year.  So it is reasonable to expect that all of the routers in the lab

 Hmm, I haven't heard this.  But, it doesn't surprise me.  I
thought these things should have been gone some time ago.  They are
overpriced and underpowered.  However, I think they would still be good
for home labs.

}-- End of excerpt from "Rodgers Moore"

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Re: bgp questions

2001-02-14 Thread Rodgers Moore

Yuck, really bad question.  No frame of reference, no nothin.  What is a
activate route anyway?  Active route?

I think the key to answering this question is the question: when would BGP
not report an active route?  When BGP and the IGP are not in sync, then an
active route would not be reported.

I say "D" is the most likely suspect, although I would change BGP to EBGP.

Rodgers Moore

""Howard C. Berkowitz"" [EMAIL PROTECTED] wrote in message
news:p05001900b6aff192dfe7@[63.216.127.98]...
 I would choose D , correct me if I am wrong
 --- David Tran [EMAIL PROTECTED] wrote:
   I have this question on my cisco prep exam
   fill-in-the-blank.  Please =
   help.
 
   A BGP router reports all activate routes based from
   BGP __.  This is =
   the default policy action for BGP routers.
 
   A. to all BGP peers
   B. to all IBGP peers
   C. to all EBGP peers
   D. and the IGP's configured on the router to all BGP
   peers
 
   I select choice a.  Is it correct?
 
   David Tran
[EMAIL PROTECTED]
   


 It's a poorly written question.  If I was forced to pick, but I don't
 understand the first sentence.

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Re: CCNP Security Specialization

2001-02-14 Thread Arthur Stewart

I didn't answer your question about books.  My understanding is that there
currently are no books that directly correspond to the Security specialist
tests - except the CCNA and MCNS- which have Cisco Press and other books
out.  The information I have is that the other three tests come directly
from the Cisco Course materials, but that the tests can be passed with
somewhat more difficulty using the product documentation available on the
Cisco website, which is also available on the Cisco documentation CD.  Good
Luck and I'd like to hear how it goes.

Arthur Stewart


"imran obaidullah" wrote in message ...
Hi Friends,

For getting CCNP securtiy Specialization, do I need to take all this exams.

1. 640-442 MCNS

Managing Cisco Network Security (MCNS)

2. 9E0-571 CSPFA

Cisco Secure PIX Firewall Advanced (CSPFA)
(see also prerequisite course Cisco Secure PIX Firewall Fundamentals CSPFF)


3. 9E0-558 CSIDS
(formerly NRIO)

Cisco Secure Intrusion Detection System (CSIDS)
(formerly NRIO)

4. 9E0-570 CSVPN

Cisco Secure VPN (CSVPN)


Any idea about the books I need to buy. Please help me.

Regards,
imran


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RE: alternative to Cisco routers

2001-02-14 Thread Fowler, Robert J.


However it might be a good choice for someone who is building a home lab. It
is much cheaper to piece together some computers and throw zebra on it than
to buy several routers. I've never used Zebra but it sounds like if you had
some existing equipment and wanted to expand on that, couldn't afford to buy
another router but had some old PC's it would be the way to go, since
speed/reliability wouldn't be a real factor in a home lab. Any thoughts?

Joey 

-Original Message-
From: dre [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 13, 2001 10:54 PM
To: [EMAIL PROTECTED]
Subject: Re: alternative to Cisco routers


I disagree, Linux is a bad choice!  A Cisco 3640
router would cost about the same and I'd like to see
you get a full BGP table with Linux for the same
hardware cost.  plus, linux doesn't have CEF or
any of the standard stuff that comes with IOS
(or JunOS for that matter).

The SMB market does what they will, and who
cares anyways?  They have *no* market share,
they aren't Internet players, they aren't market
players, they are NOTHING.  what they DON'T
NEED is another strange weird solution that I would
only put into a lab ; they need something standard,
something that works, something that will scale,
something that will perform up to their needs,
and something that most $20/hour NT admins
could configure.

I am all for (ok not for Linux, but for FreeBSD
maybe) an open source OS for research or inside
a lab where others are familiar with it.  But
suggesting Linux routers for a SMB (or Enterprise,
or Service Provider) in a production, real environment
is insane.  Don't get me wrong, I like Zebra, it's a good
tool.  But I would never run it if my mom and pop
needed a "router" solution for their new cybercafe.

The "correct" solution for SMB is a 1600 or 1700
series router.  For what you say "most" SMB's
a 1605-R (Single WAN, Dual Ethernet) and two
Catalyst 1900 switches would be more than
sufficient and would cost less in time/effort
alone for the initial setup.

Choose one person out the 165,000 CCNA
certified people, and I'm sure at least 90% of them
could configure this environment for 802.1Q, HSRP,
remote management, NAT, Firewall (Secure Integrated
Software built-in to the router), or VPN (IPSEC, L2TP,
PPTP/MPPE).  That's what they are trained to do.

Show me a Linux certification or training program
that discusses T1 cards or Zebra installation/configuration.
And then give me some numbers...  Yeah I thought so.

-dre

"anthony kim" [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 This is all well and good for the big time players, ISPs, big corps
 yadda yadda yadda, and companies with cash to burn like so much old toilet
 paper. The Small and Midsized Business market (SMB) almost always can
 accomplish what they want with free Unix or Linux for layer 3 and
 cheap stackable switches with or without 802.1q support.

 So my obligatory cisco alternative:
 www.zebra.org


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RE: DISTURBING: Spanning Tree Protocol Does not Work

2001-02-14 Thread Pierre-Alex

Hi Ahmed,

I do not have the command show port channel on the 1912 Switch.
Do you know another way of checking this out?

Regards,

C1912#show port ?
  blockForwarding of unknown unicast/multicast addresses
  monitor  Port monitoring
  system   System port configuration

Pierre-Alex

-Original Message-
From: Ahmed Aden [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 13, 2001 9:50 PM
To: Pierre-Alex
Cc: Lachisho; [EMAIL PROTECTED]; Yonkerbonk; Dale Cunningham
Subject: RE: DISTURBING: Spanning Tree Protocol Does not Work


Just in case, do a 'show port channel' to verify that it did not create a
fast etherchannel.  If it didn't create a channel, you should see a
message like:

'No ports channelling'


Ahmed Aden - 703.798.7158
Network Engineer
Resource Networks

On Tue, 13 Feb 2001, Pierre-Alex wrote:

 Hi Yonkerbonk,

 As you requested, I did a show interface on the ports that are used on
both
 switches.

 Regards,

 - on THE 1912--

 sh int f 0/26


 FastEthernet 0/26 is Enabled
 Hardware is Built-in 100Base-TX
 Address is 0050.50E2.42DA
 MTU 1500 bytes, BW 10 Kbits
 Port monitoring: Disabled
 Unknown unicast flooding: Enabled
 Unregistered multicast flooding: Enabled
 Description:
 Duplex/Flow Control setting: Auto-negotiate
 Auto-negotiation status:  Full duplex
 Enhanced Congestion Control: Disabled




 --More--

 Receive Statistics Transmit Statistics
 -  ---
--
 Total good frames   45739  Total frames
8243
 Total octets  4758190  Total octets
935475
 Broadcast/multicast frames  45687  Broadcast/multicast frames
8206
 Broadcast/multicast octets4752684  Broadcast/multicast octets
930237
 Good frames forwarded   27228  Deferrals
0
 Frames filtered 18511  Single collisions
0
 Runt frames 0  Multiple collisions
0
 No buffer discards  0  Excessive collisions
0
Queue full discards
0
 Errors:Errors:
   FCS errors0Late collisions
0
   Alignment errors  0Excessive deferrals
0
   Giant frames  0Jabber errors
0
   Address violations0Other transmit errors
0
 C1912#sh int f 0/27


 FastEthernet 0/27 is Enabled
 Hardware is Built-in 100Base-TX
 Address is 0050.50E2.42DB
 MTU 1500 bytes, BW 10 Kbits
 Port monitoring: Disabled
 Unknown unicast flooding: Enabled
 Unregistered multicast flooding: Enabled
 Description:
 Duplex/Flow Control setting: Auto-negotiate
 Auto-negotiation status:  Full duplex
 Enhanced Congestion Control: Disabled




 --More--

 Receive Statistics Transmit Statistics
 -  ---
--
 Total good frames4788  Total frames
28073
 Total octets   366300  Total octets
2553093
 Broadcast/multicast frames   4788  Broadcast/multicast frames
28064
 Broadcast/multicast octets 366300  Broadcast/multicast octets
2552388
 Good frames forwarded4788  Deferrals
0
 Frames filtered 0  Single collisions
0
 Runt frames 0  Multiple collisions
0
 No buffer discards  0  Excessive collisions
0
Queue full discards
0
 Errors:Errors:
   FCS errors0Late collisions
0
   Alignment errors  0Excessive deferrals
0
   Giant frames  0Jabber errors
0
   Address violations0Other transmit errors
0
 C1912#

  ON THE 2924XL

 sh int f 0/1
 FastEthernet0/1 is up, line protocol is up
   Hardware is Fast Ethernet, address is 0050.3ef0.3581 (bia
0050.3ef0.3581)
   MTU 1500 bytes, BW 1 Kbit, DLY 1000 usec, rely 255/255, load 1/255
   Encapsulation ARPA, loopback not set, keepalive not set
   Duplex setting unknown, Unknown Speed, 100BaseTX/FX
   ARP type: ARPA, ARP Timeout 04:00:00
   Last input 00:00:31, output 00:00:01, output hang never
   Last clearing of "show interface" counters never
   Queueing strategy: fifo
   Output queue 0/40, 0 drops; input queue 0/75, 0 drops
   5 minute input rate 0 bits/sec, 0 packets/sec
   5 minute output rate 0 bits/sec, 1 packets/sec
  30444 packets input, 5042703 bytes, 0 no buffer
  Received 20759 broadcasts, 0 runts, 0 giants, 0 throttles
  0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
  0 watchdog, 8294 multicast
  0 input packets with dribble condition detected
  100788 packets output, 3850388 bytes, 0 underruns
  0 output errors, 0 collisions, 1 interface resets
  0 babbles, 0 late collision, 1 deferred
  0 lost carrier, 0 no carrier
  0 output buffer failures, 0 output buffers swapped out
 

RE: DISTURBING: Spanning Tree Protocol Does not Work

2001-02-14 Thread Pierre-Alex

Hi Ahmed,

I do not have the command show port channel on the 1912 Switch.
Do you know another way of checking this out?

Regards,

C1912#show port ?
  blockForwarding of unknown unicast/multicast addresses
  monitor  Port monitoring
  system   System port configuration

Pierre-Alex

-Original Message-
From: Ahmed Aden [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 13, 2001 9:50 PM
To: Pierre-Alex
Cc: Lachisho; [EMAIL PROTECTED]; Yonkerbonk; Dale Cunningham
Subject: RE: DISTURBING: Spanning Tree Protocol Does not Work


Just in case, do a 'show port channel' to verify that it did not create a
fast etherchannel.  If it didn't create a channel, you should see a
message like:

'No ports channelling'


Ahmed Aden - 703.798.7158
Network Engineer
Resource Networks

On Tue, 13 Feb 2001, Pierre-Alex wrote:

 Hi Yonkerbonk,

 As you requested, I did a show interface on the ports that are used on
both
 switches.

 Regards,

 - on THE 1912--

 sh int f 0/26


 FastEthernet 0/26 is Enabled
 Hardware is Built-in 100Base-TX
 Address is 0050.50E2.42DA
 MTU 1500 bytes, BW 10 Kbits
 Port monitoring: Disabled
 Unknown unicast flooding: Enabled
 Unregistered multicast flooding: Enabled
 Description:
 Duplex/Flow Control setting: Auto-negotiate
 Auto-negotiation status:  Full duplex
 Enhanced Congestion Control: Disabled




 --More--

 Receive Statistics Transmit Statistics
 -  ---
--
 Total good frames   45739  Total frames
8243
 Total octets  4758190  Total octets
935475
 Broadcast/multicast frames  45687  Broadcast/multicast frames
8206
 Broadcast/multicast octets4752684  Broadcast/multicast octets
930237
 Good frames forwarded   27228  Deferrals
0
 Frames filtered 18511  Single collisions
0
 Runt frames 0  Multiple collisions
0
 No buffer discards  0  Excessive collisions
0
Queue full discards
0
 Errors:Errors:
   FCS errors0Late collisions
0
   Alignment errors  0Excessive deferrals
0
   Giant frames  0Jabber errors
0
   Address violations0Other transmit errors
0
 C1912#sh int f 0/27


 FastEthernet 0/27 is Enabled
 Hardware is Built-in 100Base-TX
 Address is 0050.50E2.42DB
 MTU 1500 bytes, BW 10 Kbits
 Port monitoring: Disabled
 Unknown unicast flooding: Enabled
 Unregistered multicast flooding: Enabled
 Description:
 Duplex/Flow Control setting: Auto-negotiate
 Auto-negotiation status:  Full duplex
 Enhanced Congestion Control: Disabled




 --More--

 Receive Statistics Transmit Statistics
 -  ---
--
 Total good frames4788  Total frames
28073
 Total octets   366300  Total octets
2553093
 Broadcast/multicast frames   4788  Broadcast/multicast frames
28064
 Broadcast/multicast octets 366300  Broadcast/multicast octets
2552388
 Good frames forwarded4788  Deferrals
0
 Frames filtered 0  Single collisions
0
 Runt frames 0  Multiple collisions
0
 No buffer discards  0  Excessive collisions
0
Queue full discards
0
 Errors:Errors:
   FCS errors0Late collisions
0
   Alignment errors  0Excessive deferrals
0
   Giant frames  0Jabber errors
0
   Address violations0Other transmit errors
0
 C1912#

  ON THE 2924XL

 sh int f 0/1
 FastEthernet0/1 is up, line protocol is up
   Hardware is Fast Ethernet, address is 0050.3ef0.3581 (bia
0050.3ef0.3581)
   MTU 1500 bytes, BW 1 Kbit, DLY 1000 usec, rely 255/255, load 1/255
   Encapsulation ARPA, loopback not set, keepalive not set
   Duplex setting unknown, Unknown Speed, 100BaseTX/FX
   ARP type: ARPA, ARP Timeout 04:00:00
   Last input 00:00:31, output 00:00:01, output hang never
   Last clearing of "show interface" counters never
   Queueing strategy: fifo
   Output queue 0/40, 0 drops; input queue 0/75, 0 drops
   5 minute input rate 0 bits/sec, 0 packets/sec
   5 minute output rate 0 bits/sec, 1 packets/sec
  30444 packets input, 5042703 bytes, 0 no buffer
  Received 20759 broadcasts, 0 runts, 0 giants, 0 throttles
  0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
  0 watchdog, 8294 multicast
  0 input packets with dribble condition detected
  100788 packets output, 3850388 bytes, 0 underruns
  0 output errors, 0 collisions, 1 interface resets
  0 babbles, 0 late collision, 1 deferred
  0 lost carrier, 0 no carrier
  0 output buffer failures, 0 output buffers swapped out
 

RE: DISTURBING: Spanning Tree Protocol Does not Work.

2001-02-14 Thread Pierre-Alex

Hi Leigh Anne and others:

Leigh Anne, I hope you did not loose sleep over this problem At 8:30 PM
after a full day on this problem I went to sleep and crashed 

So here we again:

You discovered correctly that PORT A is connected to f0/20 and PORT B to f
0/21
ALL those ports are part of VLAN 1 (see output bellow)
And all the ports are in fowarding mode and the lights on the switch are
glowing GREEN! (see below the span tree)
Someone suggested the presence of an etherchannel configured by default. I
will look into this
and will let you know 

Pierre-Alex

Interface Fa0/20 (port 22) in Spanning tree 1 is FORWARDING
   Port path cost 19, Port priority 128
   Designated root has priority 32768, address 0050.3ef0.3580
   Designated bridge has priority 32768, address 0050.3ef0.3580
   Designated port is 22, path cost 0
   Timers: message age 0, forward delay 0, hold 0
   BPDU: sent 73253, received 5

Interface Fa0/21 (port 23) in Spanning tree 1 is FORWARDING
   Port path cost 19, Port priority 128
   Designated root has priority 32768, address 0050.3ef0.3580
   Designated bridge has priority 32768, address 0050.3ef0.3580
   Designated port is 23, path cost 0
   Timers: message age 0, forward delay 0, hold 0
   BPDU: sent 73251, received 3

 --More--


VLAN Name StatusPorts
  - 
---
1default  activeFa0/2, Fa0/3, Fa0/4, Fa0/5,
Fa0/6, Fa0/7, Fa0/10,
Fa0/11,
Fa0/12, Fa0/13, Fa0/14,
Fa0/15,
Fa0/17, Fa0/18, Fa0/19,
Fa0/21,
Fa0/22, Fa0/23
2VLAN_A   activeFa0/9, Fa0/16, Fa0/24
3VLAN_B   activeFa0/1, Fa0/8


___

Port FastEthernet 0/26 of VLAN1 is Forwarding
   Port path cost 10, Port priority 128
   Designated root has priority 32768, address 0050.3EF0.3580
   Designated bridge has priority 32768, address 0050.3EF0.3580
   Designated port is 22, path cost 0
   Timers: message age 20, forward delay 15, hold 1
--More--
Port FastEthernet 0/27 of VLAN1 is Forwarding
   Port path cost 10, Port priority 128
   Designated root has priority 32768, address 0050.3EF0.3580
   Designated bridge has priority 32768, address 0050.50E2.42C0
   Designated port is 27, path cost 10
   Timers: message age 20, forward delay 15, hold 1

Pierre-Alex

-Original Message-
From: Leigh Anne Chisholm [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, February 14, 2001 1:29 AM
To: Pierre-Alex; Cisco Groupstudy (E-mail)
Cc: Dale Cunningham
Subject: RE: DISTURBING: Spanning Tree Protocol Does not Work.

Okay, here's the jist of things.

The Catalyst 2924XL is the root bridge:

 C2924XL#sh span

  Spanning tree 1 is executing the IEEE compatible Spanning Tree protocol
Bridge Identifier has priority 32768, address 0050.3ef0.3580
Configured hello time 2, max age 20, forward delay 15
We are the root of the spanning tree

Port 0/26 on the Catalyst 1912 is identifying "Port 22" as the "designated
port":

 Port FastEthernet 0/26 of VLAN1 is Forwarding
Port path cost 10, Port priority 128
Designated root has priority 32768, address 0050.3EF0.3580
Designated bridge has priority 32768, address 0050.3EF0.3580
Designated port is 22, path cost 0
Timers: message age 20, forward delay 15, hold 1

Port 22 is, port 0/20 on the Catalyst 2924XL switch:

 Interface Fa0/20 (port 22) in Spanning tree 1 is FORWARDING
Port path cost 19, Port priority 128
Designated root has priority 32768, address 0050.3ef0.3580
Designated bridge has priority 32768, address 0050.3ef0.3580
Designated port is 22, path cost 0
Timers: message age 0, forward delay 0, hold 0
BPDU: sent 46897, received 5

We can deduce that FastEthernet 0/26 on the 1912 switch is directly
connected to FastEthernet 0/20 on the 2924XL switch.

Note that FastEthernet 0/26 on the Catalyst 1912 is identified as the root
port as seen below:

 C1912#sh span

 VLAN1 is executing the IEEE compatible Spanning Tree Protocol
   Bridge Identifier has priority 32768, address 0050.50E2.42C0
   Configured hello time 2, max age 20, forward delay 15
   Current root has priority 32768, address 0050.3EF0.3580
   Root port is FastEthernet 0/26, cost of root path is 10
   Topology change flag not set, detected flag not set
   Topology changes 5, last topology change occured 0d02h42m54s ago
   Times:  hold 1, topology change 8960
   hello 2, max age 20, forward delay 15
   Timers: hello 2, topology change 35, notification 2

So what we have is a LAN segment connection where one end of the connection
is identified as the root port while the other is identified as the root
port for the non-root-bridge Catalyst 1912 switch.  Everything 

Fw: Is this COOL or what? Cisco Space Phones!

2001-02-14 Thread Kevin Wigle

Received this today from my inside sales manager.

Though you "might" consider blowing your own horn - it is still cool.

Kevin Wigle

- Original Message -
From: "Will Cox" [EMAIL PROTECTED]
To: Recipient list suppressed
Sent: Wednesday, February 14, 2001 9:15 AM
Subject: Is this COOL or what? Cisco Space Phones!


 Enjoy the read!!


  Yesterday, at approximately 4:09 PM Central, the first phone call from
 space was made. Astronaut Marsha Ivin, using a Cisco IP SoftPhone on the
 Space Shuttle Atlantis, made the first and second telephone calls EVER
from
 space.
  
  
  NASA has had CallManager software in a development lab since prior to
 the Selsius acquisition by Cisco. The Selsius, and now second-generation
 Cisco phones, have been unusually tolerant to the satellite delay between
 Mission Control in Houston and the Shuttle. Brett Parrish, lead NASA
 engineer on this project, holds our CallManager software in very high
 regard, especially since finding it works over satellite delay without
 modification between our hardware-based phones (tested to up to 1.2
seconds
 of delay). Brett has stated that it is very unusual for an application to
 work out of the box with this type of delay.
  
  
  Since certification for flight is an extremely long and, at times,
 extremely political process, NASA decided to use SoftPhone for the first
 trial. The main reason for this is that the laptop PCs used by NASA
 astronauts have already been certified, and getting a software process in
 flight is much easier than launching hardware. Extensive testing was
 performed at NASA using custom-built equipment to replicate the delays and
 LOS (Loss Of Signal) conditions common with the Space Shuttle. Minor
 modifications were made to CallManager (inclusion of a service parameter)
 and to SoftPhone (change in the order of events for call acceptance) by
 Cisco development to address TAPI issues with delay, and SoftPhone was
 approved for a trial flight. Unfortunately, this was not an official goal
 of the Space Shuttle Atlantis, which simply meant testing was not
 scheduled, and not guaranteed. Despite the lack of official stature for
 this test, optimism that SoftPhone would be tested was very high as the
 Astronauts had seen the application and were demanding that it fly with
the
 Shuttle. Imagine being out in space with no way to call home! Imagine
being
 IN space and being able to make a normal phone call anywhere! Despite all
 the technological advances, separation is very apparent when out in space.
 Never has an Astronaut been able to pick up a phone and place a call.
  
  
  At approximately 4:00PM Central the opportunity to make a call using
the
 Cisco IP SoftPhone became available. Marsha Ivin, with a brief break in
 official tasks, asked Space Command if there was time to try the IP
 SoftPhone. The Flight Commander gave the go-ahead and the test was on!.
 Marsha booted up the SoftPhone and at approximately 4:09PM made a call to
 the Flight Director. The call went from her SoftPhone software through a
 VG-200 gateway, over an FXO port, through a PBX to the phone on the Flight
 Director s desk. They held a long and animated conversation (though what
 was actually discussed is unknown) and at the end Marsha was granted
 permission to call one of the 7960 phones in the POC (Payload Operations
 Center). She made the call and it was answered by Brett Parrish. Marsha
 asked So how do you like getting the second ever call from space? . After
 speaking with Brett, Steve Schadelbauer of NASA was put on the line and he
 spoke with Marsha. The conversations with Marsha lasted for several
 minutes. Both Brett and Steve commented at how clear the conversation was
 much better than the audio quality found on the radio conversations with
 the Shuttle.
  
  
  It was amazing at how much of a non-event this was. History in the
 making but no scrambling, no trouble-shooting. IT JUST WORKS !!! Most of
 the credit goes to Brett and Steve for their tireless testing and
 replication of the Shuttle s environment. On the other hand, this is truly
 an illustration of how Cisco s IP Telephony makes geographic location
 irrelevant to audio communications. Anywhere, and that means ANYWHERE, you
 have IP connectivity you have a COMMUNICATIONS network, which includes
 telephony. The network works, no excuses!
  
  
  This is a tribute to many things. Brett and Steve put our software and
 hardware through the ringer at NASA subjecting it to delay, loss of
signal,
 and bit error rates well above what would be found even between Mission
 Control and the Shuttle. As a result, this historic moment was a non
event.
 Also as a result, future applications are so real that only official
 testing and approval stand in the way. We have successfully tested 7960
 phones in the Space Station and in the Shuttle and they work better than
 the SoftPhone. It will be a while before we see them as mission approval
is
 a long, and yes 

VLAN routing

2001-02-14 Thread Moiz Badr

Hi all, 
What is the best way to prevent a router on a stick
from routing between VLANs, I have to route the VLANs
traffic only to the Internet while keeping each VLAN
intact and isolated for security reason. Thanks.
Mo

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Re: alternative to Cisco routers

2001-02-14 Thread Charlie Hartwell

--- John Nemeth [EMAIL PROTECTED] wrote:  On Jul 6, 
  I wouldn't be so quick to say that.  A lot of companies
 want/need
 the best, i.e. Cisco gear, but their budgets are somewhat tight. 
 Cisco
 support is generally considered to be very good.  But, one of the
 complaints I frequently hear is the cost of it, as well as the
 equipment.  However, the latter problem has much improved.  New
 equipment is considered to be capital expenditure and is much
 easier to
 handle then yearly on-going expenses.

This is obviously an opinionated subject but, in mine, the reason
Cisco equipment is relatively expensive is not necessarily because of
it's performance. The strongest argument for Cisco kit in any bid
I've seen is the level of support (i.e. the TAC).
 There are plently of other vendors who have equivalent products that
are widely regarded as faster, more stable and cheaper than Cisco kit
but when the chips (and your network) are down, try getting someone
at Lucent/Juniper/Foundry to pick up your case within a few minutes
and be on the phone to you and connected to your equipment to
troubleshoot until that problem is fixed.
 In short, if you have Cisco kit, get a contract! It's worth every
penny.


--- John Nemeth [EMAIL PROTECTED] wrote:  On Jul 6, 12:09pm,
"Howard C. Berkowitz" wrote:
 } 
 } To be honest, I hate to see product bashing on this list. I
 cringe 
 } when I see people starting out with "I have this bug in my
 production 
 } network."  My first reaction is "and what did the TAC say about
 it?"
 } 
 } If the response is "I don't have a support contract,"  my
 response is 
 } "then you deserve the problems you have."  It's one thing for
 someone 
 } not to buy support for a home lab, but anyone (except possibly 
 } high-level resellers) who doesn't is a fool.
 
  I wouldn't be so quick to say that.  A lot of companies
 want/need
 the best, i.e. Cisco gear, but their budgets are somewhat tight. 
 Cisco
 support is generally considered to be very good.  But, one of the
 complaints I frequently hear is the cost of it, as well as the
 equipment.  However, the latter problem has much improved.  New
 equipment is considered to be capital expenditure and is much
 easier to
 handle then yearly on-going expenses.
 
 } Perhaps I'm in a bad mood today about negativism, if that isn't 
 } circular logic.  It's far too easy to slam anonymously on this
 and 
 
  I don't think so; although, it might be recursive.
 
 }-- End of excerpt from "Howard C. Berkowitz"
 
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RE: VLAN routing

2001-02-14 Thread Ole Drews Jensen

You could apply an access-list that only allows your internet traffic to
pass, and denies everything else.

Router(config)#access-list 101 permit tcp any any eq www
Router(config)#interface xxx
Router(config-if)#access-group 101 out

Hth,

Ole


 Ole Drews Jensen
 Systems Network Manager
 CCNA, MCSE, MCP+I
 RWR Enterprises, Inc.
 [EMAIL PROTECTED]
 http://www.CiscoKing.com

 NEED A JOB ???
 http://www.oledrews.com/job


-Original Message-
From: Moiz Badr [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, February 14, 2001 8:53 AM
To: [EMAIL PROTECTED]
Subject: VLAN routing


Hi all, 
What is the best way to prevent a router on a stick
from routing between VLANs, I have to route the VLANs
traffic only to the Internet while keeping each VLAN
intact and isolated for security reason. Thanks.
Mo

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PIX questions

2001-02-14 Thread Nabil Fares

Greetings all,

Would like to know if its possible to allow certain users to issue certain
commends on a pix box.  I use SSH to access the box, and some users only
require read access.  Is this even possible with pix?  I checked the
documentation with no luck.

Running version 5.3

Thanks,

Nabil

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RE: PPP multilink over 2 serial interface

2001-02-14 Thread West, Karl

I have been having some problems with Multilink PPP recently. We have used
Virtual-Template but have found that you can only have 1 Virtual-Template
per Router (7507 in this case).

Karl

-Original Message-
From: Erick B. [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, February 14, 2001 1:28 AM
To: West, Karl; 'Kim Quang Vo'; [EMAIL PROTECTED]
Subject: RE: PPP multilink over 2 serial interface


You can use the interface multilink feature to tie
serial interfaces together into one circuit. This is
fairly recent feature, mid 12.xT somewhere abouts.
multilink-group does not work on DDR interfaces. Look
into multilink virtual-template to do serial  ddr but
virtual-template is for inbound calls mainly.

int multilink1
  ip address ..
  encaps ppp
  ppp multi
  multilink-group 1
  multilink max-link #
   .. other interface commands

int s0
  encaps ppp
  ppp multilink
  multilink-group 1

int s1 
  encaps ppp
  ppp multilink
  multilink-group 1

router# show ppp multi
 .. displays stats on multilink bundle

--- "West, Karl" [EMAIL PROTECTED] wrote:
 Well If the Chanelized E3 works like our Chanelized
 T3 here in the US then
 your answer is yes!
 
 2 serial T1's = 3Mb (ppp Multilinked)
 
 Karl
 
 -Original Message-
 From: Kim Quang Vo
 [mailto:[EMAIL PROTECTED]]
 Sent: Tuesday, February 13, 2001 2:28 PM
 To: [EMAIL PROTECTED]
 Subject: PPP multilink over 2 serial interface
 
 
 
 I have no experience to configure PPP multilink at
 Cisco 2610 ( 2 serial , 
 2Mb) to 7206 with
 E3 Chanelized inteface. (It will get 4 Mb)
 
 Is it possible.
 
 
 Rergards,
 
 Kim


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RE: alternative to Cisco routers

2001-02-14 Thread John Nemeth

On Jul 7,  4:07am, "Fowler, Robert J." wrote:
} 
} However it might be a good choice for someone who is building a home lab. It
} is much cheaper to piece together some computers and throw zebra on it than
} to buy several routers. I've never used Zebra but it sounds like if you had
} some existing equipment and wanted to expand on that, couldn't afford to buy
} another router but had some old PC's it would be the way to go, since
} speed/reliability wouldn't be a real factor in a home lab. Any thoughts?

 Although, you may learn something about the protocols, you won't
learn anything about real routers.  You definitely need to get hands on
with real routers.  Zebra could be used to simulate a secondary router
in a multi-router experiment, but it isn't sufficient by itself.

}-- End of excerpt from "Fowler, Robert J."

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Re: VLAN routing

2001-02-14 Thread Yonkerbonk

Outbound access-lists on each sub-interface, blocking
other VLANs and allowing everything else.

Michael

--- Moiz Badr [EMAIL PROTECTED] wrote:
 Hi all, 
 What is the best way to prevent a router on a stick
 from routing between VLANs, I have to route the
 VLANs
 traffic only to the Internet while keeping each VLAN
 intact and isolated for security reason. Thanks.
 Mo
 
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RE: DISTURBING: Spanning Tree Protocol Does not Work.

2001-02-14 Thread Yonkerbonk

Hi Pierre,

You still need to finish setting up trunking on the
2924XL to see if my theory is correct.
The two Catalysts on the segment between Port B on the
C1912 and Fa0/21 on the 2924XL don't seem to be
talking. So Port B shows that it knows who the root
bridge is, but it shows itself as the designated
bridge since it sees itself as the only switch on that
segment and thus the only way to get to the root. One
thing I still can't explain is why Port A on the C1912
shows the root cost as being 0. It should be only 0
only if it sees itself as the root, but it doesn't
because it shows the proper MAC address.
Anyways, give that a shot and let's see where it goes.

Michael 


--- Pierre-Alex [EMAIL PROTECTED] wrote:
 Hi Leigh Anne and others:
 
 Leigh Anne, I hope you did not loose sleep over this
 problem At 8:30 PM
 after a full day on this problem I went to sleep and
 crashed 
 
 So here we again:
 
 You discovered correctly that PORT A is connected to
 f0/20 and PORT B to f
 0/21
 ALL those ports are part of VLAN 1 (see output
 bellow)
 And all the ports are in fowarding mode and the
 lights on the switch are
 glowing GREEN! (see below the span tree)
 Someone suggested the presence of an etherchannel
 configured by default. I
 will look into this
 and will let you know 
 
 Pierre-Alex
 
 Interface Fa0/20 (port 22) in Spanning tree 1 is
 FORWARDING
Port path cost 19, Port priority 128
Designated root has priority 32768, address
 0050.3ef0.3580
Designated bridge has priority 32768, address
 0050.3ef0.3580
Designated port is 22, path cost 0
Timers: message age 0, forward delay 0, hold 0
BPDU: sent 73253, received 5
 
 Interface Fa0/21 (port 23) in Spanning tree 1 is
 FORWARDING
Port path cost 19, Port priority 128
Designated root has priority 32768, address
 0050.3ef0.3580
Designated bridge has priority 32768, address
 0050.3ef0.3580
Designated port is 23, path cost 0
Timers: message age 0, forward delay 0, hold 0
BPDU: sent 73251, received 3
 
  --More--
 
 
 VLAN Name Status   
 Ports
   -
 
 ---
 1default  active   
 Fa0/2, Fa0/3, Fa0/4, Fa0/5,

 Fa0/6, Fa0/7, Fa0/10,
 Fa0/11,

 Fa0/12, Fa0/13, Fa0/14,
 Fa0/15,

 Fa0/17, Fa0/18, Fa0/19,
 Fa0/21,

 Fa0/22, Fa0/23
 2VLAN_A   active   
 Fa0/9, Fa0/16, Fa0/24
 3VLAN_B   active   
 Fa0/1, Fa0/8
 
 
 ___
 
 Port FastEthernet 0/26 of VLAN1 is Forwarding
Port path cost 10, Port priority 128
Designated root has priority 32768, address
 0050.3EF0.3580
Designated bridge has priority 32768, address
 0050.3EF0.3580
Designated port is 22, path cost 0
Timers: message age 20, forward delay 15, hold 1
 --More--
 Port FastEthernet 0/27 of VLAN1 is Forwarding
Port path cost 10, Port priority 128
Designated root has priority 32768, address
 0050.3EF0.3580
Designated bridge has priority 32768, address
 0050.50E2.42C0
Designated port is 27, path cost 10
Timers: message age 20, forward delay 15, hold 1
 
 Pierre-Alex
 
 -Original Message-
 From: Leigh Anne Chisholm [mailto:[EMAIL PROTECTED]]
 Sent: Wednesday, February 14, 2001 1:29 AM
 To: Pierre-Alex; Cisco Groupstudy (E-mail)
 Cc: Dale Cunningham
 Subject: RE: DISTURBING: Spanning Tree Protocol Does
 not Work.
 
 Okay, here's the jist of things.
 
 The Catalyst 2924XL is the root bridge:
 
  C2924XL#sh span
 
   Spanning tree 1 is executing the IEEE compatible
 Spanning Tree protocol
 Bridge Identifier has priority 32768, address
 0050.3ef0.3580
 Configured hello time 2, max age 20, forward
 delay 15
 We are the root of the spanning tree
 
 Port 0/26 on the Catalyst 1912 is identifying "Port
 22" as the "designated
 port":
 
  Port FastEthernet 0/26 of VLAN1 is Forwarding
 Port path cost 10, Port priority 128
 Designated root has priority 32768, address
 0050.3EF0.3580
 Designated bridge has priority 32768, address
 0050.3EF0.3580
 Designated port is 22, path cost 0
 Timers: message age 20, forward delay 15, hold
 1
 
 Port 22 is, port 0/20 on the Catalyst 2924XL switch:
 
  Interface Fa0/20 (port 22) in Spanning tree 1 is
 FORWARDING
 Port path cost 19, Port priority 128
 Designated root has priority 32768, address
 0050.3ef0.3580
 Designated bridge has priority 32768, address
 0050.3ef0.3580
 Designated port is 22, path cost 0
 Timers: message age 0, forward delay 0, hold 0
 BPDU: sent 46897, received 5
 
 We can deduce that FastEthernet 0/26 on the 1912
 switch is directly
 connected to FastEthernet 0/20 on the 2924XL switch.
 
 Note that FastEthernet 

MPLS, Photonic (was Re: BPX going out of style?)

2001-02-14 Thread Howard C. Berkowitz

On Jul 3,  3:55am, "Howard C. Berkowitz" wrote:
}
} Photonic switching, where traffic is rerouted based at the high-speed
} stream level rather than the packet or cell level, isn't here in
} production, but it is coming rapidly.  Photonic switching will
} complement, not replace, routing.  Please do not get me started on
} the buzzword of "optical routing."  With the capacity of newer

  Okay, how about lambda swtiching? :-)


Photonic switching and lambda switching are _usually_ the same thing, 
although the purists insist that in photonic (usually), the 
information stays optical -- it's never converted to electrical 
signals inside the relay (note that I'm avoiding the loaded term 
router or switch).

As far as I can tell in all proposals I've seen, these technologies 
are derivatives of MPLS, with additional information needed, say, to 
equate a wavelength to a MPLS label, or to use GSMP or LDP to control 
an optical cross-connect.

The Great Lie of even "conventional" MPLS is that it somehow is 
independent of "routing." To be more specific, MPLS offers some 
alternatives in the "packet forwarding" part of "routing," but still 
depends on "path determination."  I prefer to think of it as an 
"overdrive" to routing that only can work after routing protocols or 
static routing have defined the highway system.

In the real world, if that is meaningful in so virtual a space, the 
actual sequence of events is along the lines:


1.  L3 path determination, either dynamic or static, works out the
connectivity.

2.  Additional mechanisms, which may be no more than additional
constraints on path determination, select Label Switched Paths (LSP).
LSPs are associated with Forwarding Equivalence Classes (FEC), which
are ways to leave your cloud (i.e., interface, output QoS, etc.)
Think of these as hop-by-hop specifications of MPLS tunnels through
an IP or other cloud that can map labels onto a cloud-specific
forwarding lookup mechanism (label between L2/L3 headers, lambda, etc.)

3.  Use a label distribution mechanism (LDP, RSVP-TE, CR-LDP) to distribute
information to Label Switched Routers (LSR) on how to handle the
next hop forwarding for a specific incoming label.  Remember that
the scope of a label is a single link.  There is a relationship between
a label and a FEC, but it's not a one to one relationship.  Loosely,
a FEC is operationally defined by sets of labels.  LSRs are stupid;
they don't know much about the traffic they carry.  Think of ATM
switches or LAN switches in a core with true routers at the edges.

4.  Use Label Edge Routers (LER) at the ingress and egress to the cloud,
to use rules to recognize the FEC to which traffic belongs, and tag
the traffic with a label.  In practical terms, the LER may have a
rule that identifies traffic and puts it on a particular path (i.e.,
LSP with ingress label).

LSRs forward the traffic given them by ingress LERs or other LSRs.

Optical routing generally has the same logic, but the optical people 
tend to reinvent the wheel and the protocols. In my mind, a lambda 
can be a label, a VPI/VCI can be a label, and a L2/L3 shim can be a 
label.  Sometimes the "difference" between optical and conventional 
routing comes from marketingdroids of the routing world, while other 
differences come from developers who began working with SONET, ATM, 
and other telco-oriented techniques and really don't understand 
Internet routing.

Yes, there are different constraints to consider in an optical cloud 
than in a LAN cloud.  But they are still constraints, and generic 
constraint-based routing algorithms can cope with them.

Most Cisco (and indeed industry) discussions of MPLS focus, somewhat 
vaguely, on #4 of the steps below. But not to consider the role of 
routing mechanisms in LSP setup is to wave one's hands and say "here 
a miracle happens."

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RE: bgp questions

2001-02-14 Thread West, Karl

They really need to start wording these questions better!!

-Original Message-
From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, February 14, 2001 3:27 AM
To: [EMAIL PROTECTED]
Subject: Re: bgp questions


I would choose D , correct me if I am wrong
--- David Tran [EMAIL PROTECTED] wrote:
  I have this question on my cisco prep exam
  fill-in-the-blank.  Please =
  help.

  A BGP router reports all activate routes based from
  BGP __.  This is =
  the default policy action for BGP routers.

  A. to all BGP peers
  B. to all IBGP peers
  C. to all EBGP peers
  D. and the IGP's configured on the router to all BGP
  peers

  I select choice a.  Is it correct?

  David Tran
   [EMAIL PROTECTED]
  


It's a poorly written question.  If I was forced to pick, but I don't 
understand the first sentence.

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RE: VLAN routing

2001-02-14 Thread Tom

I'm no routing/VLAN genius, but:

If you have a simple environment, just use static routes as necessary.  For
example, a default route to the Internet as the only route and you will have
no routes between VLANs.  If you need one or two of them actually routed,
just use static routes.

If you have a more complex environment, I would suggest using a routing
protocol (EIGRP, OSPF) and access lists to deny traffic between VLANs.
(This is where someone might have a better suggestion)



Tom McNamara, MCSE, CCNA
Account Manager, U.S. Datacom
[EMAIL PROTECTED]




-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Moiz Badr
Sent: Wednesday, February 14, 2001 9:53 AM
To: [EMAIL PROTECTED]
Subject: VLAN routing


Hi all,
What is the best way to prevent a router on a stick
from routing between VLANs, I have to route the VLANs
traffic only to the Internet while keeping each VLAN
intact and isolated for security reason. Thanks.
Mo

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Re: alternative to Cisco routers

2001-02-14 Thread Curtis Call


This is obviously an opinionated subject but, in mine, the reason
Cisco equipment is relatively expensive is not necessarily because of
it's performance. The strongest argument for Cisco kit in any bid
I've seen is the level of support (i.e. the TAC).
  There are plently of other vendors who have equivalent products that
are widely regarded as faster, more stable and cheaper than Cisco kit
but when the chips (and your network) are down, try getting someone
at Lucent/Juniper/Foundry to pick up your case within a few minutes
and be on the phone to you and connected to your equipment to
troubleshoot until that problem is fixed.
  In short, if you have Cisco kit, get a contract! It's worth every
penny.

Well, given that I do support for Juniper I'm afraid I have to differ with 
you.  We take very good care of our customers.  I'm sure we provide the 
same level of service, if not higher, than any other vender.

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Re: BPX going out of style?

2001-02-14 Thread Howard C. Berkowitz


John Nemeth said,


On Jul 6,  1:28pm, "Brian Lodwick" wrote:
}
} I have heard many tales of how ATM will explode soon, will be partenered
} perfectly with DSL, and everyone will implement it, but I just haven't seen
} it. I like the idea of improving technologies your engineering and support
} staff are familiar with (Not counting new technology with old names like
} IPv6). I hope this is able to work out, and isn't too far down the road.

  IPv6 is coming.  There are just too many shortcomings in IPv4 that
can't be solved using hacks.  The biggest being the lack of address
space.  It really isn't a question of "if" but rather "when".

Some of the "killer apps" that have moved IPv6 into high gear include 
the decision by the third generation wireless people to use V6 as 
their basic protocol, which, as we speak, is being built into 
handsets.


} Is there any talk of using smaller tags in IP to create big pipes similar to
} ATM's VCI's so that you could lower the ip address  mask-lookup processor
} overhead on backbone IP routers? I think this would be a neat idea. Even

  You've just described MPLS.

} though the CAM table is fast the router must still read the entire address
} and mask. Small pipe identifiers could be inserted into the ip header and
} extracted at the gateways and lookup would be lowered. Like xtags on VLANS.

  IP headers are only 20 bytes and aren't much of a problem.  The
real problem is with compression, encryption, access lists, etc.  Check
out this URL for a study on what happens when access lists are used:
http://www.nwc.com/1004/1004ws2.html

}-- End of excerpt from "Brian Lodwick"

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Re: alternative to Cisco routers

2001-02-14 Thread anthony kim

Hi Howard,

--- "Howard C. Berkowitz" [EMAIL PROTECTED] wrote:
 This is all well and good for the big time players, ISPs, big
 corps
 yadda yadda yadda, and companies with cash to burn like so much
 old toilet
 paper. The Small and Midsized Business market (SMB) almost always
 can
 accomplish what they want with free Unix or Linux for layer 3 and
 cheap stackable switches with or without 802.1q support.
 
 So my obligatory cisco alternative:
 www.zebra.org
 
 And, in a non-information technology related SMB, who installs and
 supports it?


Good question.

I think under 1,000 employees is reasonable for a mid-sized company.
Less than 400 is a rough estimate for a small company. These
companies tend to already have people taking care of their NT/Novell
servers. Typically they already have file servers, print servers, and
sometimes a router or two. Maybe an Exchange server, Groupwise, or
perhaps they've thrown together a home grown solution with qmail plus
mysql plus cucipop. Throw in some switches to hook it all together.
Maybe no 802.1d or VLANs in the mix, but still, a sustainable
technology environment.

I don't think it's too much of a stretch for their in-house staff to
maintain Linux or FreeBSD. College grads are already familiar with
these free systems, or ought to be. Presumably, in-house staff should
already know OSI, TCP/IP, and IPX. Thus, the learning curve isn't too
much of a stretch.

And routing isn't too difficult, really. Especially in small
environments: Anyone reasonably intelligent who knows TCP/IP
intimately, can manage routing, or a firewall for that matter. Or
learn how to. Anyone reasonably adept with a CLI can learn IOS. (IOS,
in fact, is a far more primitive environment than the Unix shell.)

I've worked for small companies. The limited resources require
sysadmins who can wear several hats and learn quickly. It's just the
nature of the beast, nasty, brutish, but for expediency's sake, as
variegated as the business needs require.

Just my humble opinion,
anthony

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Re: bgp questions

2001-02-14 Thread Ahmed Aden


Correct me if I'm wrong, but the only situation that bgp cares about IGP's
synchronization
is when bgp is explicitly configured to announce networks (i.e network
x.x.x.x mask x.x.x.x) and it would have to check the igp to see if there
is a valid route to that network.  This can be overridden by 'no
synchronization'.  However, the default behavior is that bgp announces
active (I'm not sure what activate means) routes (routes which are
reachable via an IGP's routing table) to all configured bgp peers
irrespective of whether
they are an ibgp or ebgp peer.  For this reason, I would select A.  It's
still very poorly worded, assuming 'activate' is not a typo.

hope this helps


On Wed, 14 Feb 2001, Rodgers Moore wrote:

 Yuck, really bad question.  No frame of reference, no nothin.  What is a
 activate route anyway?  Active route?
 
 I think the key to answering this question is the question: when would BGP
 not report an active route?  When BGP and the IGP are not in sync, then an
 active route would not be reported.
 
 I say "D" is the most likely suspect, although I would change BGP to EBGP.
 
 Rodgers Moore
 
 ""Howard C. Berkowitz"" [EMAIL PROTECTED] wrote in message
 news:p05001900b6aff192dfe7@[63.216.127.98]...
  I would choose D , correct me if I am wrong
  --- David Tran [EMAIL PROTECTED] wrote:
I have this question on my cisco prep exam
fill-in-the-blank.  Please =
help.
  
A BGP router reports all activate routes based from
BGP __.  This is =
the default policy action for BGP routers.
  
A. to all BGP peers
B. to all IBGP peers
C. to all EBGP peers
D. and the IGP's configured on the router to all BGP
peers
  
I select choice a.  Is it correct?
  
David Tran
 [EMAIL PROTECTED]

 
 
  It's a poorly written question.  If I was forced to pick, but I don't
  understand the first sentence.
 
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Finished CCNP!

2001-02-14 Thread John Neiberger

Finally, after much procrastination all last year, I have finished this
darn thing.  I took the Switching test last summer, but then put the
entire thing on hold because I was tired of all the studying.  :-)

But then an acquaintance of mine gave me an idea:  just schedule the
tests and that will force you study for them.  He was right, that
provided a great motivation.  I schedule Remote Access five weeks ago,
Routing two weeks ago, and then Support last night.

I must say that the Support test is both easy and hard.  It was fairly
easy in some areas because I do a LOT of troubleshooting at work. 
however, some of the questions are *very* poorly written.  I recall one
question where you had to pick the "best" answer, but four of the five
answer were correct and two of those were almost identical.  Yikes. 
There were at least four or five questions where I made an educated
guess because I couldn't figure out what they were really asking.

And, as someone else mentioned before, the final grade is broken down
into four categories and I don't remember getting a single question in
two of those categories!  

I also have to sympathize with those of you who don't have anyone
around who really cares that you pass your tests.  None of my
coworkers--including my boss--really care.  My wife cares, but she
doesn't understand any of it.  So, I feel your pain.  :-)

Now, on to CCDP.  I think I'll schedule that bugger in two or three
weeks to get it out of the way.  And thenon to the big guy... 
that's spooky.  g

Regards,
John Neiberger,  CCNP (P = procrastinator) and CCDA

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Re: PCMCIA Flash Card Access Problems

2001-02-14 Thread David C Prall

- Original Message -
From: "Roger Sohn" [EMAIL PROTECTED]
 I have Cisco 7206VXR router and the unit has 2 slots for PCMCIA Flash
Cards.
 The IOS I'm running is 12.0.  I have 3 cards of 16MB, 48MB, and another
for
 128MB.

 Here's the problem..

 I can do everything with the 16MB card without any problems.  But when I
try
 to access the 48MB or the 128MB it gives me an error message of  "Open
 device slot1 failed (Device not ready)".


The 48MB and 110MB cards are ATA Flask Disks rather then Flash Cards. dir
disk1: instead of dir slot1: and you should be good to go.

David C Prall   [EMAIL PROTECTED]   http://dcp.dcptech.com

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Modem to Console Port

2001-02-14 Thread John

Is is possible to connect a modem to the console port for remote
configuration on the Cisco 1600 series?

If so would you please provide me with a sample configuration?

Thank you in advance for your assistance.

John Huston
[EMAIL PROTECTED]


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RE: DISTURBING: Spanning Tree Protocol Does not Work.

2001-02-14 Thread Leigh Anne Chisholm

Port 0/27 on the Catalyst 1912 doesn't seem to be sending anything to Port
0/21 on the Catalyst 2924XL.  If you look at my message from last night,
you'll notice that Fa0/21 hasn't been receiving input for 3 hours.  If
BPDU's are sent every 2 seconds, there's some sort of communication fault
occurring with the port.

Since the Catalyst 1912's 0/27 port is set to trunk on, it is likely not
communicating with Port 0/21 because port 0/21 hasn't been set to trunk.
Try trunking the 2924XL's port and see what happens.  In your configuration,
port 0/27 on the Catalyst 1912 is the one that Spanning Tree will block.
Check its status once you've completed setting up the trunking...


  -- Leigh Anne

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Pierre-Alex
Sent: February 14, 2001 7:31 AM
To: [EMAIL PROTECTED]; Cisco Groupstudy (E-mail)
Cc: Dale Cunningham
Subject: RE: DISTURBING: Spanning Tree Protocol Does not Work.


Hi Leigh Anne and others:

Leigh Anne, I hope you did not loose sleep over this problem At 8:30 PM
after a full day on this problem I went to sleep and crashed 

So here we again:

You discovered correctly that PORT A is connected to f0/20 and PORT B to f
0/21
ALL those ports are part of VLAN 1 (see output bellow)
And all the ports are in fowarding mode and the lights on the switch are
glowing GREEN! (see below the span tree)
Someone suggested the presence of an etherchannel configured by default. I
will look into this
and will let you know 

Pierre-Alex

Interface Fa0/20 (port 22) in Spanning tree 1 is FORWARDING
   Port path cost 19, Port priority 128
   Designated root has priority 32768, address 0050.3ef0.3580
   Designated bridge has priority 32768, address 0050.3ef0.3580
   Designated port is 22, path cost 0
   Timers: message age 0, forward delay 0, hold 0
   BPDU: sent 73253, received 5

Interface Fa0/21 (port 23) in Spanning tree 1 is FORWARDING
   Port path cost 19, Port priority 128
   Designated root has priority 32768, address 0050.3ef0.3580
   Designated bridge has priority 32768, address 0050.3ef0.3580
   Designated port is 23, path cost 0
   Timers: message age 0, forward delay 0, hold 0
   BPDU: sent 73251, received 3

 --More--


VLAN Name StatusPorts
  - 
---
1default  activeFa0/2, Fa0/3, Fa0/4, Fa0/5,
Fa0/6, Fa0/7, Fa0/10,
Fa0/11,
Fa0/12, Fa0/13, Fa0/14,
Fa0/15,
Fa0/17, Fa0/18, Fa0/19,
Fa0/21,
Fa0/22, Fa0/23
2VLAN_A   activeFa0/9, Fa0/16, Fa0/24
3VLAN_B   activeFa0/1, Fa0/8


___

Port FastEthernet 0/26 of VLAN1 is Forwarding
   Port path cost 10, Port priority 128
   Designated root has priority 32768, address 0050.3EF0.3580
   Designated bridge has priority 32768, address 0050.3EF0.3580
   Designated port is 22, path cost 0
   Timers: message age 20, forward delay 15, hold 1
--More--
Port FastEthernet 0/27 of VLAN1 is Forwarding
   Port path cost 10, Port priority 128
   Designated root has priority 32768, address 0050.3EF0.3580
   Designated bridge has priority 32768, address 0050.50E2.42C0
   Designated port is 27, path cost 10
   Timers: message age 20, forward delay 15, hold 1

Pierre-Alex

-Original Message-
From: Leigh Anne Chisholm [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, February 14, 2001 1:29 AM
To: Pierre-Alex; Cisco Groupstudy (E-mail)
Cc: Dale Cunningham
Subject: RE: DISTURBING: Spanning Tree Protocol Does not Work.

Okay, here's the jist of things.

The Catalyst 2924XL is the root bridge:

 C2924XL#sh span

  Spanning tree 1 is executing the IEEE compatible Spanning Tree protocol
Bridge Identifier has priority 32768, address 0050.3ef0.3580
Configured hello time 2, max age 20, forward delay 15
We are the root of the spanning tree

Port 0/26 on the Catalyst 1912 is identifying "Port 22" as the "designated
port":

 Port FastEthernet 0/26 of VLAN1 is Forwarding
Port path cost 10, Port priority 128
Designated root has priority 32768, address 0050.3EF0.3580
Designated bridge has priority 32768, address 0050.3EF0.3580
Designated port is 22, path cost 0
Timers: message age 20, forward delay 15, hold 1

Port 22 is, port 0/20 on the Catalyst 2924XL switch:

 Interface Fa0/20 (port 22) in Spanning tree 1 is FORWARDING
Port path cost 19, Port priority 128
Designated root has priority 32768, address 0050.3ef0.3580
Designated bridge has priority 32768, address 0050.3ef0.3580
Designated port is 22, path cost 0
Timers: message age 0, forward delay 0, hold 0
BPDU: sent 46897, received 5

We can deduce that FastEthernet 0/26 on the 1912 

RE: Networking White Papers (NAP and BGP)

2001-02-14 Thread Hinton Bandele-NBH281

The problem I am trying to solve...

I am trying to develop a network access strategy based on the use of a NAP for my 
organization.  I am tasked with preparing a whitepaper to address this.

-Original Message-
From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 12, 2001 11:07 AM
To: [EMAIL PROTECTED]
Subject: RE: Networking White Papers (NAP and BGP)


Based on paliminary research, BGP seems to be the major protocol at 
the NAP level.  Is that true?

Yes.

What problem are you trying to solve?

And if so, why?  Furthermore, why is so much attention given to one protocol?

I don't really understand this question. Exchange points are 
completely concerned with interdomain routing. The only standard 
protocol for interdomain routing is BGP.

   Is it the only protocol for the job of exchanging routes at the NAP level?

Yes/

  Finally, will BGP continue to be the protocol of choice as IPv6 develops?

Yes, that is one of the purposes for BGP address family extensions.


Thanks!

-Original Message-
From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]]
Sent: Saturday, February 10, 2001 4:54 PM
To: [EMAIL PROTECTED]
Subject: RE: Networking White Papers (NAP and BGP)


As defined in the industry, a Network Access Point (NAP) is a major
connection point in the global Internet.  It is like a
Point-of-Presence (POP) but it is high bandwidth.  Currently there
are 5 major NAP in the US, but I need white papers on the
construction of these major POPs.  Hope that helps!

NAP is a historical term for what more frequently is called an
exchange point; there are many more than five in the US and indeed an
increasing number worldwide.  There's normally a panel discussion on
"news from the exchanges" at each NANOG meeting
(http://www.nanog.org), and there are exchange working group meetings
at the RIPE meetings for Europe (http://www.ripe.net)  Before even
beginning to think about designing an exchange or carrier-grade POP,
be very familiar with the NANOG and RIPE meeting presentations and
with their mailing list minutes.

Cisco has some good references:

ISP Essentials Power Session
 
http://www.cisco.com/public/cons/isp/documents/IOSEssentials_Seminar.ziphttp://www.cisco.com/public/cons/isp/documents/IOSEssentials_Seminar.zip

BGP Routing Workshop
 
http://www.cisco.com/public/cons/workshops/bgp/http://www.cisco.com/public/cons/workshops/bgp/

I discuss some aspects of exchange points in my BGP tutorial series
at http://www.certificationzone.com.  This coming weekend, at NANOG
in Atlanta, I'll be doing an exterior routing tutorial that will
partially discuss exchanges and POPs. Slides should be up by Sunday.
The presentations may be webcast, but I'm not sure. Check the NANOG
site.

The classic exchange point design features a carrier-grade physical
facility, racks for the individual providers' routers, and a common
layer 2 (sometimes layer 3) fabric to interconnect them.  In the
original NAPs, the providers often kept the BGP workload down by not
having a direct BGP connection to every other provider there, but to
one or more route servers -- BGP code running on UNIX boxes that do
no forwarding, but build the maps of the exchange point. Today, there
is less emphasis on the route servers for primary BGP, but there is
still peering to them for statistics gathering.

Some exchanges use a distributed switched fabric, so there is not one
physical room.  Instead, the participating providers are linked by
ATM.

It's something of an urban legend that the top-level providers do
significant traffic exchange at the exchange points.  At that level,
they are far more likely to have private peerings over direct OC-3 or
faster links.  Exchange points, however, are useful for medium level
providers in a given urban or geographic area.  Indeed, there is an
ever-growing trend to having metropolitan exchange points among
cooperating ISPs in small cities.

The traditional exchange is for ISPs only, but the line between
hosting centers and exchanges is constantly getting more blurry.

Large provider POPs are not necessarily smaller than exchanges, but
simply have a different management and operational model.

I don't want to be negative, but if someone hasn't been playing in
the ISP area for a while, is familiar with the NANOG/RIPE materials,
etc., they aren't remotely ready to design a carrier-grade POP or
exchange by themselves.  Cisco consulting engineers, and I'd assume
Juniper as well, can be very helpful when such a project is being
considered.


-Original Message-
From: Peter Van Oene [mailto:[EMAIL PROTECTED]]
Sent: Saturday, February 10, 2001 1:01 PM
To: Hinton Bandele-NBH281
Subject: Re: Networking White Papers (NAP and BGP)


What exactly do you consider a NAP to be?

*** REPLY SEPARATOR  ***

On 2/9/2001 at 9:14 AM Hinton Bandele-NBH281 wrote:

I am setting up a NAP using 3600's and need a site or location for
obtaining whitepapers on both NAP's and BGP.  I am 

Re: Finished CCNP!

2001-02-14 Thread Manny Colon

Congrats

Regards,

Manny Colon
Computer Services
Information Builders Inc.

John Neiberger wrote:

 Finally, after much procrastination all last year, I have finished this
 darn thing.  I took the Switching test last summer, but then put the
 entire thing on hold because I was tired of all the studying.  :-)

 But then an acquaintance of mine gave me an idea:  just schedule the
 tests and that will force you study for them.  He was right, that
 provided a great motivation.  I schedule Remote Access five weeks ago,
 Routing two weeks ago, and then Support last night.

 I must say that the Support test is both easy and hard.  It was fairly
 easy in some areas because I do a LOT of troubleshooting at work.
 however, some of the questions are *very* poorly written.  I recall one
 question where you had to pick the "best" answer, but four of the five
 answer were correct and two of those were almost identical.  Yikes.
 There were at least four or five questions where I made an educated
 guess because I couldn't figure out what they were really asking.

 And, as someone else mentioned before, the final grade is broken down
 into four categories and I don't remember getting a single question in
 two of those categories!

 I also have to sympathize with those of you who don't have anyone
 around who really cares that you pass your tests.  None of my
 coworkers--including my boss--really care.  My wife cares, but she
 doesn't understand any of it.  So, I feel your pain.  :-)

 Now, on to CCDP.  I think I'll schedule that bugger in two or three
 weeks to get it out of the way.  And thenon to the big guy...
 that's spooky.  g

 Regards,
 John Neiberger,  CCNP (P = procrastinator) and CCDA

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Re: alternative to Cisco routers

2001-02-14 Thread anthony kim

You seem tense.

If you search the web, you will find many companies already running
linux or freebsd and have no problems with full BGP views. It really
isn't too difficult maintaining T1s either. CCN? plus linux isn't
mutually exclusive so I don't see the hubbub.

The "correct" solution on a cisco list is what cisco says is the
correct solution. That I'll grant you. We are merely extending our
horizons and discussing possibilities.

CCN?s on this list (myself included) need not feel threatened.

And finally, I disagree with regard to cost. You can't get a 3640
with 128MB DRAM for under a thousand. Ok, *maybe* you can snag a used
one cheap, perhaps cut a deal somewheres, but I did not intend this
to be a MY OS is better than IOS war. Let's not go there.



--- dre [EMAIL PROTECTED] wrote:
 I disagree, Linux is a bad choice!  A Cisco 3640
 router would cost about the same and I'd like to see
 you get a full BGP table with Linux for the same
 hardware cost.  plus, linux doesn't have CEF or
 any of the standard stuff that comes with IOS
 (or JunOS for that matter).
 
 The SMB market does what they will, and who
 cares anyways?  They have *no* market share,
 they aren't Internet players, they aren't market
 players, they are NOTHING.  what they DON'T
 NEED is another strange weird solution that I would
 only put into a lab ; they need something standard,
 something that works, something that will scale,
 something that will perform up to their needs,
 and something that most $20/hour NT admins
 could configure.
 
 I am all for (ok not for Linux, but for FreeBSD
 maybe) an open source OS for research or inside
 a lab where others are familiar with it.  But
 suggesting Linux routers for a SMB (or Enterprise,
 or Service Provider) in a production, real environment
 is insane.  Don't get me wrong, I like Zebra, it's a good
 tool.  But I would never run it if my mom and pop
 needed a "router" solution for their new cybercafe.
 
 The "correct" solution for SMB is a 1600 or 1700
 series router.  For what you say "most" SMB's
 a 1605-R (Single WAN, Dual Ethernet) and two
 Catalyst 1900 switches would be more than
 sufficient and would cost less in time/effort
 alone for the initial setup.
 
 Choose one person out the 165,000 CCNA
 certified people, and I'm sure at least 90% of them
 could configure this environment for 802.1Q, HSRP,
 remote management, NAT, Firewall (Secure Integrated
 Software built-in to the router), or VPN (IPSEC, L2TP,
 PPTP/MPPE).  That's what they are trained to do.
 
 Show me a Linux certification or training program
 that discusses T1 cards or Zebra installation/configuration.
 And then give me some numbers...  Yeah I thought so.
 
 -dre
 
 "anthony kim" [EMAIL PROTECTED] wrote in message
 [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
  This is all well and good for the big time players, ISPs, big
 corps
  yadda yadda yadda, and companies with cash to burn like so much
 old toilet
  paper. The Small and Midsized Business market (SMB) almost always
 can
  accomplish what they want with free Unix or Linux for layer 3 and
  cheap stackable switches with or without 802.1q support.
 
  So my obligatory cisco alternative:
  www.zebra.org
 
  On Tue, Feb 13, 2001 at 04:00:36PM -0600, William E. Gragido
 wrote:
  There ServerIronXL Layer 4-7 switches are pretty cool boxes as
 well.
  Foundry is also pretty nice in that their command line interface
 is
 awfully
  reminiscent of Cisco's.  The transition from one to the other
 should not
 be
  too difficult.
  
  -Original Message-
  From: Christopher Kolp [mailto:[EMAIL PROTECTED]]
  Sent: Tuesday, February 13, 2001 3:41 PM
  To: 'Brant Stevens'; 'William E. Gragido'; 'Howard C.
 Berkowitz';
  [EMAIL PROTECTED]
  Subject: RE: alternative to Cisco routers
  
  
  Foundry prices are killer and the performance is top notch.
  
  We're planning a roll out with 40 OC-12 POS. Guess who our
 preferred
  provider is?
  
  None other than foundry.
  
  -ck
  
  
  
  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
 Behalf Of
  Brant Stevens
  Sent: Tuesday, February 13, 2001 4:28 PM
  To: William E. Gragido; 'Howard C. Berkowitz';
 [EMAIL PROTECTED]
  Subject: RE: alternative to Cisco routers
  
  
  Not to mention Foundry...
  
  Brant I. Stevens
  Internetwork Solutions Engineer
  Thrupoint, Inc.
  545 Fifth Avenue, 14th Floor
  New York, NY. 10017
  646-562-6540
  
  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
 Behalf Of
  William E. Gragido
  Sent: Tuesday, February 13, 2001 2:47 PM
  To: 'Howard C. Berkowitz'; [EMAIL PROTECTED]
  Subject: RE: alternative to Cisco routers
  
  
  Riding on the coat tails of Howard's comments, there are also
 other
 players
  out there like Lucent(home of the  Nexibit N64000 Terabit Switch
 Router
 and
  the Ascend product lines), Avici, Charlette's Web, Nortel etc.,
 that
 offer
  carrier grade solutions.
  
  -Original Message-
  From: 

BSCN

2001-02-14 Thread Manny Colon

I just purchased the CCNP Routing Study Guide published by Sybex. Is the
BSCN Cisco Press book better? I also have Routing TCP/IP Volume one.
What should I use to study for the exam.

--
Regards,

Manny Colon
Computer Services
Information Builders Inc.


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RE: Modem to Console Port

2001-02-14 Thread Chris Lemagie

It is possible.

There is actually no configuration on the router.  You will need to set the
modem to talk at 9600, 8, N, 1 with no local echo.  You also need to set the
modem to auto answer.  Your modem should have documentation with the proper
"AT" commands that you will need to issue.  Save this configuration to the
modems NVRAM and plug it into the router.

Chris Lemagie...

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
John
Sent: Wednesday, February 14, 2001 7:51 AM
To: [EMAIL PROTECTED]
Subject: Modem to Console Port


Is is possible to connect a modem to the console port for remote
configuration on the Cisco 1600 series?

If so would you please provide me with a sample configuration?

Thank you in advance for your assistance.

John Huston
[EMAIL PROTECTED]


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Re: alternative to Cisco routers

2001-02-14 Thread dre


"anthony kim" [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...

 And finally, I disagree with regard to cost. You can't get a 3640
 with 128MB DRAM for under a thousand. Ok, *maybe* you can snag a used
 one cheap, perhaps cut a deal somewheres, but I did not intend this
 to be a MY OS is better than IOS war. Let's not go there.

You can get Cisco equipment through VAR's or resellers
on a leased line of credit.  This may be cheaper than
purchasing PC hardware (especially PC-related Networking
or Telecommunications hardware) at retail costs.

This is the standard method that most small-to-medium businesses
and almost all enterprise-sized businesses finance their options.

I don't have a problem with discussing other possibilities.  I have
a problem with Linux zealots recommending products to businesses,
which sounds like the camp that you are from.

-dre


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RE: VTY LINES NON EXISTENT!!!!

2001-02-14 Thread Leigh Anne Chisholm

Yes, somebody did already show that setting a user mode password on a
Catalyst 1900 switch could be done--it was me.  (-:

I'm going to have to sit down and learn more about TACACS I guess.  I
thought that TACACS+ would only come into play when the router (or switch)
prompted the end user for a password.  Since the 1900's don't prompt for a
"user mode" password, I would have thought TACACS+ (or Radius) wouldn't be
an option.

As for the way I did it -- I created a user mode password prompt using a
single Cisco IOS command.


  -- Leigh Anne

-Original Message-
From: John Nemeth [mailto:[EMAIL PROTECTED]]
Sent: February 14, 2001 6:00 AM
To: Leigh Anne Chisholm; Rik Guyler; Cisco Groupstudy (E-mail)
Cc: [EMAIL PROTECTED]
Subject: RE: VTY LINES NON EXISTENT


On Jul 6,  7:16am, "Leigh Anne Chisholm" wrote:
}
} You'll notice that when you access your Catalyst switch via the console
} port, that without issuing any sort of password, you're immediately able
to
} access several commands on the switch -- you've immediately got access to
} "user mode".  In some organizations, this can present a security risk.
Can

 Yeah, I noticed this and found it rather surprising, not to
mention disturbing.  Especially, when you consider that the standard
software doesn't have this problem (of course, it doesn't have the
"enable" mode distinction, or a CLI for that matter).

} you set a "user-mode" password for the Catalyst 1900 series switch?  If
so,
} how?

 Somebody has already shown that it can be done.  Digging through a
switch, the only thing that comes to mind is TACACS?  However, setting
up TACACS just for a couple of switches seems like a big waste.

}-- End of excerpt from "Leigh Anne Chisholm"

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RE: bgp questions

2001-02-14 Thread Ahmed Aden


Thanks for the clarification.  So with 'no synchronization' set, every
peer who RECEIVES that route doesn't have to verify if there is an igp
route to
it, but the originator still checks before advertising it?


On Wed, 14 Feb 2001, Brian Dennis wrote:

 Sychonization only comes into play when a BGP route is learned from an iBGP
 peer. If you are the origniator of the route you must have an IGP route.
 Disabling synchonization won't affect the originator of the route.
 
 Brian Dennis
 CCIE #2210 (RS)(ISP/Dial)
 CCSI #98640
 
 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
 Ahmed Aden
 Sent: Wednesday, February 14, 2001 8:36 AM
 To: Rodgers Moore
 Cc: [EMAIL PROTECTED]
 Subject: Re: bgp questions
 
 
 
 Correct me if I'm wrong, but the only situation that bgp cares about IGP's
 synchronization
 is when bgp is explicitly configured to announce networks (i.e network
 x.x.x.x mask x.x.x.x) and it would have to check the igp to see if there
 is a valid route to that network.  This can be overridden by 'no
 synchronization'.  However, the default behavior is that bgp announces
 active (I'm not sure what activate means) routes (routes which are
 reachable via an IGP's routing table) to all configured bgp peers
 irrespective of whether
 they are an ibgp or ebgp peer.  For this reason, I would select A.  It's
 still very poorly worded, assuming 'activate' is not a typo.
 
 hope this helps
 
 
 On Wed, 14 Feb 2001, Rodgers Moore wrote:
 
  Yuck, really bad question.  No frame of reference, no nothin.  What is a
  activate route anyway?  Active route?
 
  I think the key to answering this question is the question: when would BGP
  not report an active route?  When BGP and the IGP are not in sync, then an
  active route would not be reported.
 
  I say "D" is the most likely suspect, although I would change BGP to EBGP.
 
  Rodgers Moore
 
  ""Howard C. Berkowitz"" [EMAIL PROTECTED] wrote in message
  news:p05001900b6aff192dfe7@[63.216.127.98]...
   I would choose D , correct me if I am wrong
   --- David Tran [EMAIL PROTECTED] wrote:
 I have this question on my cisco prep exam
 fill-in-the-blank.  Please =
 help.
   
 A BGP router reports all activate routes based from
 BGP __.  This is =
 the default policy action for BGP routers.
   
 A. to all BGP peers
 B. to all IBGP peers
 C. to all EBGP peers
 D. and the IGP's configured on the router to all BGP
 peers
   
 I select choice a.  Is it correct?
   
 David Tran
  [EMAIL PROTECTED]
 
  
  
   It's a poorly written question.  If I was forced to pick, but I don't
   understand the first sentence.
  
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Converting from IGRP to EIGRP

2001-02-14 Thread Roberts, Timothy


I posted this a few weeks ago and only got a few responses so I thought that
I would try again.  What would be the best way to migrate from IGRP to
EIGRP?  Everything is in the same AS.  Should I just add the EIGRP
statements to all of the routers and let EIRE do the redistribution
automatically?  Any ideas would be appreciated.
Thanks

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RE: bgp questions

2001-02-14 Thread Brian Dennis

Sychonization only comes into play when a BGP route is learned from an iBGP
peer. If you are the origniator of the route you must have an IGP route.
Disabling synchonization won't affect the originator of the route.

Brian Dennis
CCIE #2210 (RS)(ISP/Dial)
CCSI #98640

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Ahmed Aden
Sent: Wednesday, February 14, 2001 8:36 AM
To: Rodgers Moore
Cc: [EMAIL PROTECTED]
Subject: Re: bgp questions



Correct me if I'm wrong, but the only situation that bgp cares about IGP's
synchronization
is when bgp is explicitly configured to announce networks (i.e network
x.x.x.x mask x.x.x.x) and it would have to check the igp to see if there
is a valid route to that network.  This can be overridden by 'no
synchronization'.  However, the default behavior is that bgp announces
active (I'm not sure what activate means) routes (routes which are
reachable via an IGP's routing table) to all configured bgp peers
irrespective of whether
they are an ibgp or ebgp peer.  For this reason, I would select A.  It's
still very poorly worded, assuming 'activate' is not a typo.

hope this helps


On Wed, 14 Feb 2001, Rodgers Moore wrote:

 Yuck, really bad question.  No frame of reference, no nothin.  What is a
 activate route anyway?  Active route?

 I think the key to answering this question is the question: when would BGP
 not report an active route?  When BGP and the IGP are not in sync, then an
 active route would not be reported.

 I say "D" is the most likely suspect, although I would change BGP to EBGP.

 Rodgers Moore

 ""Howard C. Berkowitz"" [EMAIL PROTECTED] wrote in message
 news:p05001900b6aff192dfe7@[63.216.127.98]...
  I would choose D , correct me if I am wrong
  --- David Tran [EMAIL PROTECTED] wrote:
I have this question on my cisco prep exam
fill-in-the-blank.  Please =
help.
  
A BGP router reports all activate routes based from
BGP __.  This is =
the default policy action for BGP routers.
  
A. to all BGP peers
B. to all IBGP peers
C. to all EBGP peers
D. and the IGP's configured on the router to all BGP
peers
  
I select choice a.  Is it correct?
  
David Tran
 [EMAIL PROTECTED]

 
 
  It's a poorly written question.  If I was forced to pick, but I don't
  understand the first sentence.
 
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 http://www.groupstudy.com/list/cisco.html
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backup subinterface on another subinterface

2001-02-14 Thread Adam Wang

Hi group,

I have 2 PVCs setup using Frame Relay on a serial
interface with 2 subinterafces, and I want these 2
subinterfaces to backup each other when 1 fails.

I did backup interface s0.2, but it won't allow a
subinterface on the backup command, only the physical
interface.  So backup interface s0 is possible.

Why is that and how can I do this


Thanks in advance


Adam

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Re: Fw: Is this COOL or what? Cisco Space Phones!

2001-02-14 Thread Arthur Simplina

This is COOL!!!

The network works.No excuses.

Cheers,

Arthur


From: "Kevin Wigle" [EMAIL PROTECTED]
Reply-To: "Kevin Wigle" [EMAIL PROTECTED]
To: "cisco" [EMAIL PROTECTED]
Subject: Fw: Is this COOL or what?  Cisco Space Phones!
Date: Wed, 14 Feb 2001 09:39:27 -0500

Received this today from my inside sales manager.

Though you "might" consider blowing your own horn - it is still cool.

Kevin Wigle


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Re: alternative to Cisco routers

2001-02-14 Thread John Nemeth

On May 31,  7:43pm, anthony kim wrote:
} --- "Howard C. Berkowitz" [EMAIL PROTECTED] wrote:
}  paper. The Small and Midsized Business market (SMB) almost always
}  can
}  accomplish what they want with free Unix or Linux for layer 3 and
}  cheap stackable switches with or without 802.1q support.
}  
}  So my obligatory cisco alternative:
}  www.zebra.org
}  
}  And, in a non-information technology related SMB, who installs and
}  supports it?
} 
} 
} Good question.
} 
} I think under 1,000 employees is reasonable for a mid-sized company.
} Less than 400 is a rough estimate for a small company. These

 Your numbers are a little off.  Cisco defines them as:

SOHO -- Small Office / Home Office: 1-20 users
Small Business: 20-100 users
Medium Business: 100-500 users

I would tend to go along with these numbers.

} companies tend to already have people taking care of their NT/Novell

 Medium businesses certainly.  However, small businesses may or may
not.  Many of them will contract out the higher end stuff.

} I don't think it's too much of a stretch for their in-house staff to
} maintain Linux or FreeBSD. College grads are already familiar with
} these free systems, or ought to be. Presumably, in-house staff should

 There's a big difference between playing with them at home and
knowing how to handle production systems.  Also, unless they went to
vocational or technical schools, they won't have any operations
training.

} already know OSI, TCP/IP, and IPX. Thus, the learning curve isn't too

 That's a big presumption.

} And routing isn't too difficult, really. Especially in small
} environments: Anyone reasonably intelligent who knows TCP/IP
} intimately, can manage routing, or a firewall for that matter. Or

 How many people know TCP/IP intimately?  Probably fewer then you
think.

 Firewalls are specialty items that still require knowledgable
people.  Unless you like either having people break into your network
or having your network break.

} I've worked for small companies. The limited resources require
} sysadmins who can wear several hats and learn quickly. It's just the
} nature of the beast, nasty, brutish, but for expediency's sake, as
} variegated as the business needs require.

 That's true, but they don't necessarily have to know everything.
Some of the more complex stuff could be farmed out.

}-- End of excerpt from anthony kim
On May 31,  7:43pm, anthony kim wrote:
} --- "Howard C. Berkowitz" [EMAIL PROTECTED] wrote:
}  paper. The Small and Midsized Business market (SMB) almost always
}  can
}  accomplish what they want with free Unix or Linux for layer 3 and
}  cheap stackable switches with or without 802.1q support.
}  
}  So my obligatory cisco alternative:
}  www.zebra.org
}  
}  And, in a non-information technology related SMB, who installs and
}  supports it?
} 
} 
} Good question.
} 
} I think under 1,000 employees is reasonable for a mid-sized company.
} Less than 400 is a rough estimate for a small company. These

 Your numbers are a little off.  Cisco defines them as:

SOHO -- Small Office / Home Office: 1-20 users
Small Business: 20-100 users
Medium Business: 100-500 users

I would tend to go along with these numbers.

} companies tend to already have people taking care of their NT/Novell

 Medium businesses certainly.  However, small businesses may or may
not.  Many of them will contract out the higher end stuff.

} I don't think it's too much of a stretch for their in-house staff to
} maintain Linux or FreeBSD. College grads are already familiar with
} these free systems, or ought to be. Presumably, in-house staff should

 There's a big difference between playing with them at home and
knowing how to handle production systems.  Also, unless they went to
vocational or technical schools, they won't have any operations
training.

} already know OSI, TCP/IP, and IPX. Thus, the learning curve isn't too

 That's a big presumption.

} And routing isn't too difficult, really. Especially in small
} environments: Anyone reasonably intelligent who knows TCP/IP
} intimately, can manage routing, or a firewall for that matter. Or

 How many people know TCP/IP intimately?  Probably fewer then you
think.

 Firewalls are specialty items that still require knowledgable
people.  Unless you like either having people break into your network
or having your network break.

} I've worked for small companies. The limited resources require
} sysadmins who can wear several hats and learn quickly. It's just the
} nature of the beast, nasty, brutish, but for expediency's sake, as
} variegated as the business needs require.

 That's true, but they don't necessarily have to know everything.
Some of the more complex stuff could be farmed out.

}-- End of excerpt from anthony kim

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RE: Networking White Papers (NAP and BGP)

2001-02-14 Thread Howard C. Berkowitz

The problem I am trying to solve...

I am trying to develop a network access strategy based on the use of 
a NAP for my organization.  I am tasked with preparing a whitepaper 
to address this.


NAPs, or more correctly exchange points, are intended for itercarrier 
operation.  Enterprises are usually not allowed to connect to them. 
So, if your organization is an enterprise, it's not a viable strategy.

Large hosting centers may be the functional equivalent of exchanges, 
but they have an assortment of business models for who owns and 
operates the servers.

Metropolitan area exchange points may be more relaxed in their rules.


-Original Message-
From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 12, 2001 11:07 AM
To: [EMAIL PROTECTED]
Subject: RE: Networking White Papers (NAP and BGP)


Based on paliminary research, BGP seems to be the major protocol at
the NAP level.  Is that true?

Yes.

What problem are you trying to solve?

And if so, why?  Furthermore, why is so much attention given to one protocol?

I don't really understand this question. Exchange points are
completely concerned with interdomain routing. The only standard
protocol for interdomain routing is BGP.

Is it the only protocol for the job of exchanging routes at the NAP level?

Yes/

   Finally, will BGP continue to be the protocol of choice as IPv6 develops?

Yes, that is one of the purposes for BGP address family extensions.


Thanks!

-Original Message-
From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]]
Sent: Saturday, February 10, 2001 4:54 PM
To: [EMAIL PROTECTED]
Subject: RE: Networking White Papers (NAP and BGP)


As defined in the industry, a Network Access Point (NAP) is a major
connection point in the global Internet.  It is like a
Point-of-Presence (POP) but it is high bandwidth.  Currently there
are 5 major NAP in the US, but I need white papers on the
construction of these major POPs.  Hope that helps!

NAP is a historical term for what more frequently is called an
exchange point; there are many more than five in the US and indeed an
increasing number worldwide.  There's normally a panel discussion on
"news from the exchanges" at each NANOG meeting
(http://www.nanog.org), and there are exchange working group meetings
at the RIPE meetings for Europe (http://www.ripe.net)  Before even
beginning to think about designing an exchange or carrier-grade POP,
be very familiar with the NANOG and RIPE meeting presentations and
with their mailing list minutes.

Cisco has some good references:

ISP Essentials Power Session

http://www.cisco.com/public/cons/isp/documents/IOSEssentials_Seminar.ziphttp://www.cisco.com/public/cons/isp/documents/IOSEssentials_Seminar.zip

BGP Routing Workshop

http://www.cisco.com/public/cons/workshops/bgp/http://www.cisco.com/public/cons/workshops/bgp/

I discuss some aspects of exchange points in my BGP tutorial series
at http://www.certificationzone.com.  This coming weekend, at NANOG
in Atlanta, I'll be doing an exterior routing tutorial that will
partially discuss exchanges and POPs. Slides should be up by Sunday.
The presentations may be webcast, but I'm not sure. Check the NANOG
site.

The classic exchange point design features a carrier-grade physical
facility, racks for the individual providers' routers, and a common
layer 2 (sometimes layer 3) fabric to interconnect them.  In the
original NAPs, the providers often kept the BGP workload down by not
having a direct BGP connection to every other provider there, but to
one or more route servers -- BGP code running on UNIX boxes that do
no forwarding, but build the maps of the exchange point. Today, there
is less emphasis on the route servers for primary BGP, but there is
still peering to them for statistics gathering.

Some exchanges use a distributed switched fabric, so there is not one
physical room.  Instead, the participating providers are linked by
  ATM.

It's something of an urban legend that the top-level providers do
significant traffic exchange at the exchange points.  At that level,
they are far more likely to have private peerings over direct OC-3 or
faster links.  Exchange points, however, are useful for medium level
providers in a given urban or geographic area.  Indeed, there is an
ever-growing trend to having metropolitan exchange points among
cooperating ISPs in small cities.

The traditional exchange is for ISPs only, but the line between
hosting centers and exchanges is constantly getting more blurry.

Large provider POPs are not necessarily smaller than exchanges, but
simply have a different management and operational model.

I don't want to be negative, but if someone hasn't been playing in
the ISP area for a while, is familiar with the NANOG/RIPE materials,
etc., they aren't remotely ready to design a carrier-grade POP or
exchange by themselves.  Cisco consulting engineers, and I'd assume
Juniper as well, can be very helpful when such a project is being
considered.



RE: alternative to Cisco routers

2001-02-14 Thread anthony kim


--- John Nemeth [EMAIL PROTECTED] wrote:
 On Jul 7,  4:07am, "Fowler, Robert J." wrote:
 } 
 } However it might be a good choice for someone who is building a
 home lab. It
 } is much cheaper to piece together some computers and throw zebra
 on it than
 } to buy several routers. I've never used Zebra but it sounds like
 if you had
 } some existing equipment and wanted to expand on that, couldn't
 afford to buy
 } another router but had some old PC's it would be the way to go,
 since
 } speed/reliability wouldn't be a real factor in a home lab. Any
 thoughts?
 
  Although, you may learn something about the protocols, you
 won't
 learn anything about real routers.  You definitely need to get
 hands on
 with real routers.  Zebra could be used to simulate a secondary
 router
 in a multi-router experiment, but it isn't sufficient by itself.
 
 }-- End of excerpt from "Fowler, Robert J."


Hi John,

Is a real router a device which routes layer 3 packets? Or a device
"specifically designed" to route layer 3 packets. Your statement
implies the latter. Whereas I believe the former.

You *will* learn about real routers because the pc is a real router.
You may *not learn* anything about IOS or $VENDOR's routers.

And before the hate mail floods my inbox, learning cisco's routers is
a *good* thing. you can't ignore the 800lb gorilla.

anthony

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Dial Up networking books

2001-02-14 Thread Piatnitchi Cristian

Hi al

I have been digging through the Cisco site for 2 weeks and as a final bootm
line 
I decided that I need a good book to learn how to set up Cisco routers for
different kind
of dial-up dial-in configurations.

Perhaps I missed something from the Cisco site but in my opinion it is
impossible to 
have a big picture about dial-up networking with Cisco just browsing the
web. I would be happy 
to find out about some useful links inside of this site because I would like
to save my money.

Coming back to the subject I would ask you to recommend me the best books
for learning about that.

Thanks in advance
Cristian Piatnitchi
a CCNA aspirant :-))

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RE: alternative to Cisco routers

2001-02-14 Thread Carnevale, Jason

I like the Linux OS, but in my experience there are some problems with using
it as a router for ISP connectivity. The most common situation is that I
seen a bug with the PPP stack which causes the line to go into an up/down
state. The problem is with LCP negotiation, for whatever reason, the Linux
box sending its LCP negotiation and the router at the ISPs end is sending
its LCP negotiation but neither one is reaching the open state. When you
factor in the hardware costs of dedicating a computer for the task, and the
hardware to link it to a T1 you are not far from the cost of a Cisco router.
I would personally choose the Cisco router for this task.

Jason

-Original Message-
From: anthony kim [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, February 14, 2001 7:59 AM
To: [EMAIL PROTECTED]
Subject: Re: alternative to Cisco routers


You seem tense.

If you search the web, you will find many companies already running
linux or freebsd and have no problems with full BGP views. It really
isn't too difficult maintaining T1s either. CCN? plus linux isn't
mutually exclusive so I don't see the hubbub.

The "correct" solution on a cisco list is what cisco says is the
correct solution. That I'll grant you. We are merely extending our
horizons and discussing possibilities.

CCN?s on this list (myself included) need not feel threatened.

And finally, I disagree with regard to cost. You can't get a 3640
with 128MB DRAM for under a thousand. Ok, *maybe* you can snag a used
one cheap, perhaps cut a deal somewheres, but I did not intend this
to be a MY OS is better than IOS war. Let's not go there.



--- dre [EMAIL PROTECTED] wrote:
 I disagree, Linux is a bad choice!  A Cisco 3640
 router would cost about the same and I'd like to see
 you get a full BGP table with Linux for the same
 hardware cost.  plus, linux doesn't have CEF or
 any of the standard stuff that comes with IOS
 (or JunOS for that matter).
 
 The SMB market does what they will, and who
 cares anyways?  They have *no* market share,
 they aren't Internet players, they aren't market
 players, they are NOTHING.  what they DON'T
 NEED is another strange weird solution that I would
 only put into a lab ; they need something standard,
 something that works, something that will scale,
 something that will perform up to their needs,
 and something that most $20/hour NT admins
 could configure.
 
 I am all for (ok not for Linux, but for FreeBSD
 maybe) an open source OS for research or inside
 a lab where others are familiar with it.  But
 suggesting Linux routers for a SMB (or Enterprise,
 or Service Provider) in a production, real environment
 is insane.  Don't get me wrong, I like Zebra, it's a good
 tool.  But I would never run it if my mom and pop
 needed a "router" solution for their new cybercafe.
 
 The "correct" solution for SMB is a 1600 or 1700
 series router.  For what you say "most" SMB's
 a 1605-R (Single WAN, Dual Ethernet) and two
 Catalyst 1900 switches would be more than
 sufficient and would cost less in time/effort
 alone for the initial setup.
 
 Choose one person out the 165,000 CCNA
 certified people, and I'm sure at least 90% of them
 could configure this environment for 802.1Q, HSRP,
 remote management, NAT, Firewall (Secure Integrated
 Software built-in to the router), or VPN (IPSEC, L2TP,
 PPTP/MPPE).  That's what they are trained to do.
 
 Show me a Linux certification or training program
 that discusses T1 cards or Zebra installation/configuration.
 And then give me some numbers...  Yeah I thought so.
 
 -dre
 
 "anthony kim" [EMAIL PROTECTED] wrote in message
 [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
  This is all well and good for the big time players, ISPs, big
 corps
  yadda yadda yadda, and companies with cash to burn like so much
 old toilet
  paper. The Small and Midsized Business market (SMB) almost always
 can
  accomplish what they want with free Unix or Linux for layer 3 and
  cheap stackable switches with or without 802.1q support.
 
  So my obligatory cisco alternative:
  www.zebra.org
 
  On Tue, Feb 13, 2001 at 04:00:36PM -0600, William E. Gragido
 wrote:
  There ServerIronXL Layer 4-7 switches are pretty cool boxes as
 well.
  Foundry is also pretty nice in that their command line interface
 is
 awfully
  reminiscent of Cisco's.  The transition from one to the other
 should not
 be
  too difficult.
  
  -Original Message-
  From: Christopher Kolp [mailto:[EMAIL PROTECTED]]
  Sent: Tuesday, February 13, 2001 3:41 PM
  To: 'Brant Stevens'; 'William E. Gragido'; 'Howard C.
 Berkowitz';
  [EMAIL PROTECTED]
  Subject: RE: alternative to Cisco routers
  
  
  Foundry prices are killer and the performance is top notch.
  
  We're planning a roll out with 40 OC-12 POS. Guess who our
 preferred
  provider is?
  
  None other than foundry.
  
  -ck
  
  
  
  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
 Behalf Of
  Brant Stevens
  Sent: Tuesday, February 13, 2001 4:28 PM
  To: 

Re: alternative to Cisco routers

2001-02-14 Thread Howard C. Berkowitz



Anthony Kim wrote, Hi Howard,

--- "Howard C. Berkowitz" [EMAIL PROTECTED] wrote:
  This is all well and good for the big time players, ISPs, big
  corps
  yadda yadda yadda, and companies with cash to burn like so much
  old toilet
  paper. The Small and Midsized Business market (SMB) almost always
  can
  accomplish what they want with free Unix or Linux for layer 3 and
  cheap stackable switches with or without 802.1q support.
  
  So my obligatory cisco alternative:
  www.zebra.org

  And, in a non-information technology related SMB, who installs and
  supports it?


Good question.

I think you are assuming larger sizes as "S" and "M" than does Cisco. 
When I did Cisco seminars for SMB resellers, one of the sales 
strawmen for "small" businesses was a dental office.  More like 10 
employees or so. (I did suggest that dentists would have special 
expertise in bridging, but, when my reference was understood, people 
threw pretzels at me).

Perhaps a distinguishing feature of a "small" business is that they 
have NO professional network or system administrators.  At best, 
admin is a collateral duty for an employee who may or may not have 
ANY training. My own dentist happens to be a technology enthusiast 
who likes working with computers, but, at some point, he realizes 
that time he spends doing administration is not time that can more 
profitably be used for billable patient care.

My former internist was adept at getting his tie caught in the 
printer. I helped him get established with a Mac using the children's 
interface.

My cardiologist, on the other hand, has a deep interest in medical 
information systems, and has a subspecialty in electrophysiology (and 
good hardware and algorithm background).  While his group probably 
has 100 employees, they are extremely instrumentation-heavy and have 
a professional IT group.  They spend lots of money on support -- 
think of their potential liability if they didn't, and a 
life-critical file got trashed.   So while the cardiology group is 
small in numbers of employees, it's at least medium in terms of 
sophistication.  They are starting to get into things like remote 
imaging with ATM links and the like, using technologies we tend to 
think of as large business.


I think under 1,000 employees is reasonable for a mid-sized company.
Less than 400 is a rough estimate for a small company. These
companies tend to already have people taking care of their NT/Novell
servers. Typically they already have file servers, print servers, and
sometimes a router or two.

But what if it's something like a home improvement center? Quite 
likely to use a turnkey inventory control system, but, depending on 
how the initial system was sold, may or may not have internal (or 
contract) support staff.

Even large businesses may very consciously want to focus on "core 
competences".  I can think of several computer and network 
manufacturers who outsource such things as help desks, server admin, 
payroll, etc., for various financial reasons.

Maybe an Exchange server, Groupwise, or
perhaps they've thrown together a home grown solution with qmail plus
mysql plus cucipop. Throw in some switches to hook it all together.
Maybe no 802.1d or VLANs in the mix, but still, a sustainable
technology environment.

But the average SMB that's not in the IT business probably hasn't 
thrown together a home grown solution.  They don't have the staff to 
know where to start.  Even more dangerous is that they may have 
people who know the components, but don't know how to make them 
foolproof--or even worse, geniusproof.


And routing isn't too difficult, really. Especially in small
environments: Anyone reasonably intelligent who knows TCP/IP
intimately, can manage routing, or a firewall for that matter.

I might have agreed until you said firewall.  I'm far more likely to 
recommend outsourcing security administration than network 
administration. It's not that a firewall is necessarily hard to 
configure, but it is hard to know what should go into the 
configuration.  Developing the security policy needs lots of 
experience.  At the day-to-day level, anyone who expects to run a 
reasonably secure firewall needs to stay on top of the firewall, 
CERT, etc., mailing lists. That takes time, time which a consultant 
can amortize over multiple customers.

Routing is reasonably straightforward until you start getting into 
high-availability, business critical functions, especially involving 
the Internet or extranets.

Or
learn how to. Anyone reasonably adept with a CLI can learn IOS. (IOS,
in fact, is a far more primitive environment than the Unix shell.)

And outside computer science programs, very few people are literate 
with UNIX shells--statistically speaking of the overall corporate 
environment.


I've worked for small companies. The limited resources require
sysadmins who can wear several hats and learn quickly. It's just the
nature of the beast, nasty, brutish, but for expediency's sake, 

Re: BSCN

2001-02-14 Thread John Neiberger

I don't know about the Sybex book.  I used the BSCN Study guide from
CiscoPress, Routing TCP/IP, and Internet Routing Architectures, 2nd
edition.  Read through both study guides and the EIGRP and OSPF sections
of Routing TCP/IP.  If you understand and can explain what you've read
at that point, you'll do fine.

John

 "Manny Colon" [EMAIL PROTECTED] 2/14/01 9:26:00 AM 
I just purchased the CCNP Routing Study Guide published by Sybex. Is
the
BSCN Cisco Press book better? I also have Routing TCP/IP Volume one.
What should I use to study for the exam.

--
Regards,

Manny Colon
Computer Services
Information Builders Inc.


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Benefits of two PVC's

2001-02-14 Thread Roberts, Timothy


I was wondering what all of the benefits of running two PVC's at one end of
a frame circuit.

telco
(PVC)cloudPV
C1router1

\_PVC2_router1

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Re: alternative to Cisco routers

2001-02-14 Thread Howard C. Berkowitz

  This is obviously an opinionated subject but, in mine, the reason
Cisco equipment is relatively expensive is not necessarily because of
it's performance. The strongest argument for Cisco kit in any bid
I've seen is the level of support (i.e. the TAC).
   There are plently of other vendors who have equivalent products that
are widely regarded as faster, more stable and cheaper than Cisco kit
but when the chips (and your network) are down, try getting someone
at Lucent/Juniper/Foundry to pick up your case within a few minutes
and be on the phone to you and connected to your equipment to
troubleshoot until that problem is fixed.
   In short, if you have Cisco kit, get a contract! It's worth every
penny.

Well, given that I do support for Juniper I'm afraid I have to differ with
you.  We take very good care of our customers.  I'm sure we provide the
same level of service, if not higher, than any other vender.


I've always been amused at the Cisco theory (on which they seem to be 
relaxing) that a CCIE, in particular, needs to be expert in 
everything, yet the TAC staff are divided into six or so specialty 
areas.

At least when you call Juniper, there's no danger about your being 
shunted to an SNA or desktop expert in lieu of someone who deals with 
carrier-class routing.  Again, one of the counterarguments to 
canonizing a company because it offers end to end solutions.

SMB and carrier support requirements are very different.  Even large 
enterprises often have different needs.

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Re: Modem to Console Port

2001-02-14 Thread jason lynch

Or, if you're using a US Robotics Sportster, just set the dip switches to
all up and 7 down and dial in.

Make sure you specify login and password under line con 0.

"Chris Lemagie" [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 It is possible.

 There is actually no configuration on the router.  You will need to set
the
 modem to talk at 9600, 8, N, 1 with no local echo.  You also need to set
the
 modem to auto answer.  Your modem should have documentation with the
proper
 "AT" commands that you will need to issue.  Save this configuration to the
 modems NVRAM and plug it into the router.

 Chris Lemagie...

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
 John
 Sent: Wednesday, February 14, 2001 7:51 AM
 To: [EMAIL PROTECTED]
 Subject: Modem to Console Port


 Is is possible to connect a modem to the console port for remote
 configuration on the Cisco 1600 series?

 If so would you please provide me with a sample configuration?

 Thank you in advance for your assistance.

 John Huston
 [EMAIL PROTECTED]


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Re: Converting from IGRP to EIGRP

2001-02-14 Thread Robert Padjen

First, please do not put everything in the same AS.
This is a very bad thing, and I really wish Cisco
would kill the feature. (I think it was placed in
there for marketing)

There are two standard ways to do this. The first is
border - you simply redistribute and filter with
distribute lists. The redistribution point can be
moved as you convert, or more added (although you
should only have two routers invloved if possible).

The other is overlay. Both IGRP and EIGRP run on all
routers in the network, but EIGRP's AD is weighted
higher. Then you pull IGRP off. Any router that is not
running IGRP will advertise the routes via EIGRP, and
the only real trick is memory and making sure that you
work from the outside in on the IGRP removal.


--- "Roberts, Timothy" [EMAIL PROTECTED]
wrote:
 
 I posted this a few weeks ago and only got a few
 responses so I thought that
 I would try again.  What would be the best way to
 migrate from IGRP to
 EIGRP?  Everything is in the same AS.  Should I just
 add the EIGRP
 statements to all of the routers and let EIRE do the
 redistribution
 automatically?  Any ideas would be appreciated.
 Thanks
 
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=
Robert Padjen

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RE: alternative to Cisco routers

2001-02-14 Thread John Nemeth

On May 31,  8:23pm, anthony kim wrote:
} --- John Nemeth [EMAIL PROTECTED] wrote:
}  On Jul 7,  4:07am, "Fowler, Robert J." wrote:
}  } 
}  } However it might be a good choice for someone who is building a
}  home lab. It
}  } is much cheaper to piece together some computers and throw zebra
}  on it than
}  } to buy several routers. I've never used Zebra but it sounds like
}  if you had
}  } some existing equipment and wanted to expand on that, couldn't
}  afford to buy
}  } another router but had some old PC's it would be the way to go,
}  since
}  } speed/reliability wouldn't be a real factor in a home lab. Any
}  thoughts?
}  
}   Although, you may learn something about the protocols, you
}  won't
}  learn anything about real routers.  You definitely need to get
}  hands on
}  with real routers.  Zebra could be used to simulate a secondary
}  router
}  in a multi-router experiment, but it isn't sufficient by itself.
} 
} Is a real router a device which routes layer 3 packets? Or a device
} "specifically designed" to route layer 3 packets. Your statement
} implies the latter. Whereas I believe the former.

 The latter.  A PC make be able to route packets, but that doesn't
make it a real router.  The hardware device is going to be faster
(especially at the high end), more reliable, require much less
maintenance (which makes it cheaper in the long run), and easier to
install and setup (not to mention take up far less space).  I'm a huge
fan of UNIX and will tend to run just about everything on UNIX systems,
but even I realise that UNIX host based systems are not the correct
solution for every problem.

} You *will* learn about real routers because the pc is a real router.
} You may *not learn* anything about IOS or $VENDOR's routers.

 That is the purpose of getting Cisco certs...

}-- End of excerpt from anthony kim

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Re: alternative to Cisco routers

2001-02-14 Thread anthony kim

Intersting thread. I didn't know cisco defined a small business so
strictly. Is that an exam question? :)

Of course the bottom line is, you make technology recommendations on
what the business can handle, what they require, and what they can
afford. At some intersection of this triad, an answer may surface.

I am fortunate in that my experience with networking people have all
been with knowledgable and clever folks.





--- John Nemeth [EMAIL PROTECTED] wrote:
 On May 31,  7:43pm, anthony kim wrote:
 } --- "Howard C. Berkowitz" [EMAIL PROTECTED] wrote:
 }  paper. The Small and Midsized Business market (SMB) almost
 always
 }  can
 }  accomplish what they want with free Unix or Linux for layer 3
 and
 }  cheap stackable switches with or without 802.1q support.
 }  
 }  So my obligatory cisco alternative:
 }  www.zebra.org
 }  
 }  And, in a non-information technology related SMB, who installs
 and
 }  supports it?
 } 
 } 
 } Good question.
 } 
 } I think under 1,000 employees is reasonable for a mid-sized
 company.
 } Less than 400 is a rough estimate for a small company. These
 
  Your numbers are a little off.  Cisco defines them as:
 
 SOHO -- Small Office / Home Office: 1-20 users
 Small Business: 20-100 users
 Medium Business: 100-500 users
 
 I would tend to go along with these numbers.
 
 } companies tend to already have people taking care of their
 NT/Novell
 
  Medium businesses certainly.  However, small businesses may or
 may
 not.  Many of them will contract out the higher end stuff.
 
 } I don't think it's too much of a stretch for their in-house staff
 to
 } maintain Linux or FreeBSD. College grads are already familiar
 with
 } these free systems, or ought to be. Presumably, in-house staff
 should
 
  There's a big difference between playing with them at home and
 knowing how to handle production systems.  Also, unless they went
 to
 vocational or technical schools, they won't have any operations
 training.
 
 } already know OSI, TCP/IP, and IPX. Thus, the learning curve isn't
 too
 
  That's a big presumption.
 
 } And routing isn't too difficult, really. Especially in small
 } environments: Anyone reasonably intelligent who knows TCP/IP
 } intimately, can manage routing, or a firewall for that matter. Or
 
  How many people know TCP/IP intimately?  Probably fewer then
 you
 think.
 
  Firewalls are specialty items that still require knowledgable
 people.  Unless you like either having people break into your
 network
 or having your network break.
 
 } I've worked for small companies. The limited resources require
 } sysadmins who can wear several hats and learn quickly. It's just
 the
 } nature of the beast, nasty, brutish, but for expediency's sake,
 as
 } variegated as the business needs require.
 
  That's true, but they don't necessarily have to know
 everything.
 Some of the more complex stuff could be farmed out.
 
 }-- End of excerpt from anthony kim
 On May 31,  7:43pm, anthony kim wrote:
 } --- "Howard C. Berkowitz" [EMAIL PROTECTED] wrote:
 }  paper. The Small and Midsized Business market (SMB) almost
 always
 }  can
 }  accomplish what they want with free Unix or Linux for layer 3
 and
 }  cheap stackable switches with or without 802.1q support.
 }  
 }  So my obligatory cisco alternative:
 }  www.zebra.org
 }  
 }  And, in a non-information technology related SMB, who installs
 and
 }  supports it?
 } 
 } 
 } Good question.
 } 
 } I think under 1,000 employees is reasonable for a mid-sized
 company.
 } Less than 400 is a rough estimate for a small company. These
 
  Your numbers are a little off.  Cisco defines them as:
 
 SOHO -- Small Office / Home Office: 1-20 users
 Small Business: 20-100 users
 Medium Business: 100-500 users
 
 I would tend to go along with these numbers.
 
 } companies tend to already have people taking care of their
 NT/Novell
 
  Medium businesses certainly.  However, small businesses may or
 may
 not.  Many of them will contract out the higher end stuff.
 
 } I don't think it's too much of a stretch for their in-house staff
 to
 } maintain Linux or FreeBSD. College grads are already familiar
 with
 } these free systems, or ought to be. Presumably, in-house staff
 should
 
  There's a big difference between playing with them at home and
 knowing how to handle production systems.  Also, unless they went
 to
 vocational or technical schools, they won't have any operations
 training.
 
 } already know OSI, TCP/IP, and IPX. Thus, the learning curve isn't
 too
 
  That's a big presumption.
 
 } And routing isn't too difficult, really. Especially in small
 } environments: Anyone reasonably intelligent who knows TCP/IP
 } intimately, can manage routing, or a firewall for that matter. Or
 
  How many people know TCP/IP intimately?  Probably fewer then
 you
 think.
 
  Firewalls are specialty items that still require knowledgable
 people.  Unless you like either having people break into your
 network
 or 

Re: Benefits of two PVC's

2001-02-14 Thread Kelly D Griffin

My company does primary and secondary PVC's to customers for purposes of
failover.  We have one PVC into our primary 6Mb Frame port and the secondary
PVC into our secondary 4.5Mb Frame port.

Kelly D Griffin, CCNA, CCDA
Network Engineer
Kg2 Network Design
http://www.kg2.com


- Original Message -
From: "Roberts, Timothy" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, February 14, 2001 11:27 AM
Subject: Benefits of two PVC's



 I was wondering what all of the benefits of running two PVC's at one end
of
 a frame circuit.

 telco

(PVC)cloudPV
 C1router1

 \_PVC2_router1

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switching types

2001-02-14 Thread Brian Lodwick

I really enjoyed this link and appreciate your reply, for everyone else read 
through this article this link goes for a nice look at different switching 
types.
http://www.nwc.com/1004/1004ws2.html


From: "Howard C. Berkowitz" [EMAIL PROTECTED]
Reply-To: "Howard C. Berkowitz" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Re: BPX going out of style?
Date: Wed, 14 Feb 2001 10:30:27 -0500

 John Nemeth said,


 On Jul 6,  1:28pm, "Brian Lodwick" wrote:
 }
 } I have heard many tales of how ATM will explode soon, will be 
partenered
 } perfectly with DSL, and everyone will implement it, but I just haven't 
seen
 } it. I like the idea of improving technologies your engineering and 
support
 } staff are familiar with (Not counting new technology with old names 
like
 } IPv6). I hope this is able to work out, and isn't too far down the 
road.
 
   IPv6 is coming.  There are just too many shortcomings in IPv4 that
 can't be solved using hacks.  The biggest being the lack of address
 space.  It really isn't a question of "if" but rather "when".

Some of the "killer apps" that have moved IPv6 into high gear include
the decision by the third generation wireless people to use V6 as
their basic protocol, which, as we speak, is being built into
handsets.

 
 } Is there any talk of using smaller tags in IP to create big pipes 
similar to
 } ATM's VCI's so that you could lower the ip address  mask-lookup 
processor
 } overhead on backbone IP routers? I think this would be a neat idea. 
Even
 
   You've just described MPLS.
 
 } though the CAM table is fast the router must still read the entire 
address
 } and mask. Small pipe identifiers could be inserted into the ip header 
and
 } extracted at the gateways and lookup would be lowered. Like xtags on 
VLANS.
 
   IP headers are only 20 bytes and aren't much of a problem.  The
 real problem is with compression, encryption, access lists, etc.  Check
 out this URL for a study on what happens when access lists are used:
 http://www.nwc.com/1004/1004ws2.html
 
 }-- End of excerpt from "Brian Lodwick"

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RE: alternative to Cisco routers

2001-02-14 Thread anthony kim


--- John Nemeth [EMAIL PROTECTED] wrote:
 } 
 } Is a real router a device which routes layer 3 packets? Or a
 device
 } "specifically designed" to route layer 3 packets. Your statement
 } implies the latter. Whereas I believe the former.
 
  The latter.  A PC make be able to route packets, but that
 doesn't
 make it a real router.  The hardware device is going to be faster
 (especially at the high end), more reliable, require much less
 maintenance (which makes it cheaper in the long run), and easier to
 install and setup (not to mention take up far less space).

John, you've just added qualifications to the definition of a real
router. Am I correct then in saying you believe a real router is

a) a device that routes layer 3 packets
b) a device strictly designed to route layer 3 packets
c) a device that routes layer 3 fast and reliably
d) all of the above

The cisco exam answer is: d)
I'm just too damn liberal with my definitions so would have chosen a)

 I'm a
 huge
 fan of UNIX and will tend to run just about everything on UNIX
 systems,
 but even I realise that UNIX host based systems are not the correct
 solution for every problem.


Agreed.


 
 } You *will* learn about real routers because the pc is a real
 router.
 } You may *not learn* anything about IOS or $VENDOR's routers.
 
  That is the purpose of getting Cisco certs...
 
 }-- End of excerpt from anthony kim


Thus our raison d'etre.

anthony

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RE:PROBLEM FIXED: ---------------------- DISTURBING: Spanning Tree Protocol Does not Work.

2001-02-14 Thread Pierre-Alex

HI LEIGH ANNE and everyone,

The problem was fixed by allowing VLANs out of the trunk on port f0/21. (See
below).
I don't have an amber light on the blocked port but since the show span
indicates that the port is blocked I can live with that. (Maybe TAC should
be the next step!)
I would like now to document the rules used to solve this problem: Leigh
Anne, please correct me if I am wrong!

1) The spanning protocol includes trunk ports in its calculation.
2) If a trunk is not allowed to trunk any VLAN, the port is considered
inactive
3) Since an inactive port does not forward traffic it does not create a loop
4) A port that does not create a loop will not be put in blocking mode
(which explains my earlier problem)

So LEIGH ANNE, when are you going to claim your CCIE? (My apology if you
already have it!)

A thousand thanks to Leigh Anne and all for the learning experience,

Pierre-Alex

**CONFIGURATION
PROBLEM**
C2924XL#sh int f 0/20 sw

Switchport: Enabled
Administrative mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: isl
Operational Trunking Encapsulation: isl
Negotiation of Trunking: Disabled
Access Mode VLAN: 0 ((Inactive))
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: ALL
Trunking VLANs Active: 1-3
Pruning VLANs Enabled: NONE

C2924XL#sh int f 0/21 sw
Name: Fa0/21
Switchport: Enabled
Administrative mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: isl
Operational Trunking Encapsulation: isl
Negotiation of Trunking: Disabled
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled:
NONE--
Pruning VLANs Enabled: NONE

**I AM FIXING THE
PROBLEM***

On interface f0/21 I did:

sw trunk allowed vlan all
sw trunk allowed vlan add 1
sw trunk allowed vlan add 2
sw trunk allowed vlan add 3

**PROBLEM
FIXED!!*



C2924XL#sh int f 0/21 sw
Name: Fa0/21
Switchport: Enabled
Administrative mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: isl
Operational Trunking Encapsulation: isl
Negotiation of Trunking: Disabled
Access Mode VLAN: 0 ((Inactive))
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled:
ALL--
Trunking VLANs Active:
1-3--
Pruning VLANs Enabled: NONE

**SPANNING PROTOCOL WITH ONE PORT
BLOCKED!**

Interface Fa0/20 (port 22) in Spanning tree 1 is FORWARDING
   Port path cost 19, Port priority 128
   Designated root has priority 32768, address 0050.3ef0.3580
   Designated bridge has priority 32768, address 0050.3ef0.3580
   Designated port is 22, path cost 0
   Timers: message age 0, forward delay 0, hold 0
   BPDU: sent 78555, received 6

Interface Fa0/21 (port 23) in Spanning tree 1 is FORWARDING
   Port path cost 19, Port priority 128
   Designated root has priority 32768, address 0050.3ef0.3580
   Designated bridge has priority 32768, address 0050.3ef0.3580
   Designated port is 23, path cost 0
   Timers: message age 0, forward delay 0, hold 0
   BPDU: sent 78551, received 4


Port FastEthernet 0/26 of VLAN1 is Forwarding
   Port path cost 10, Port priority 128
   Designated root has priority 32768, address 0050.3EF0.3580
   Designated bridge has priority 32768, address 0050.3EF0.3580
   Designated port is 22, path cost 0
   Timers: message age 20, forward delay 15, hold 1
--More--
Port FastEthernet 0/27 of VLAN1 is
Blocking--
   Port path cost 10, Port priority 128
   Designated root has priority 32768, address 0050.3EF0.3580
   Designated bridge has priority 32768, address 0050.3EF0.3580
   Designated port is 23, path cost 0
   Timers: message age 20, forward delay 15, hold 1





Pierre-Alex

-Original Message-
From: Leigh Anne Chisholm [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, February 14, 2001 9:57 AM
To: Pierre-Alex; Cisco Groupstudy (E-mail)
Cc: Dale Cunningham
Subject: RE: DISTURBING: Spanning Tree Protocol Does not Work.

Port 0/27 on the Catalyst 1912 doesn't seem to be sending anything to Port
0/21 on the Catalyst 2924XL.  If you look at my message from last night,
you'll notice that Fa0/21 hasn't been receiving input for 3 hours.  If
BPDU's are sent every 2 seconds, there's some sort of communication fault
occurring with the port.

Since the Catalyst 1912's 0/27 port is set to trunk on, it is likely not
communicating with Port 0/21 because port 0/21 hasn't been set to trunk.
Try trunking the 2924XL's port and see what happens.  In your configuration,
port 0/27 on the Catalyst 1912 is the one that Spanning Tree will block.
Check its status once you've completed setting up the 

RE: Modem to Console Port

2001-02-14 Thread Chris Lemagie

John brought one thing to light that I forgot to mention earlier.

By connecting a modem to the router, you are opening a security hole into
your network.  Make sure to set a timeout on the console port so that when a
user hangs up, the console session will timeout and another user can't come
in behind you and grab your console session.  You may also want to have
somebody at a remote branch physically unplug the phone cable from your
router after you have completed any configuration changes.  Better yet,
control access to your routers with Cisco Secure ACS.  You can then set
privilege levels on a user by user basis as well as logging access to your
networking infrastructure.

Hope this helps...

Chris Lemagie

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Chris Lemagie
Sent: Wednesday, February 14, 2001 8:18 AM
To: John; [EMAIL PROTECTED]
Subject: RE: Modem to Console Port


It is possible.

There is actually no configuration on the router.  You will need to set the
modem to talk at 9600, 8, N, 1 with no local echo.  You also need to set the
modem to auto answer.  Your modem should have documentation with the proper
"AT" commands that you will need to issue.  Save this configuration to the
modems NVRAM and plug it into the router.

Chris Lemagie...

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
John
Sent: Wednesday, February 14, 2001 7:51 AM
To: [EMAIL PROTECTED]
Subject: Modem to Console Port


Is is possible to connect a modem to the console port for remote
configuration on the Cisco 1600 series?

If so would you please provide me with a sample configuration?

Thank you in advance for your assistance.

John Huston
[EMAIL PROTECTED]


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Re: backup subinterface on another subinterface

2001-02-14 Thread Kelly D Griffin

The way my company does it is to weight routes for the two PVC's.

Serial0/0.1 point-to-point
ip address 192.168.255.1 255.255.255.252
no ip route-cache
no cdp enable
frame-relay interface-dlci 20
!
Serial0/0.2 point-to-point
ip address 192.168.255.5 255.255.255.252
no ip route-cache
no cdp enable
frame-relay interface-dlci 21
!
ip route 10.0.0.0 255.0.0.0 192.168.255.2
ip route 10.0.0.0 255.0.0.0 192.168.255.6 200
!
end
wr

This says to route the traffic over S0/0.1 as it is directly connected.
Route the traffic over S0/0.2 if the primary link should become unreachable.
You have to be careful with the administrative distance on the backup route.
If you are running a routing protocol (OSPF, RIP, etc.) you will have to
take into account what the default distances are for these protocols.  Keep
in mind that a route that points to an interface is distance 0 and a route
to an IP address is distance 1.

Kelly D Griffin, CCNA, CCDA
Network Engineer
Kg2 Network Design
http://www.kg2.com


- Original Message -
From: "Adam Wang" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, February 14, 2001 10:08 AM
Subject: backup subinterface on another subinterface


 Hi group,

 I have 2 PVCs setup using Frame Relay on a serial
 interface with 2 subinterafces, and I want these 2
 subinterfaces to backup each other when 1 fails.

 I did backup interface s0.2, but it won't allow a
 subinterface on the backup command, only the physical
 interface.  So backup interface s0 is possible.

 Why is that and how can I do this


 Thanks in advance


 Adam

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RE: bgp questions

2001-02-14 Thread Brian Dennis


Correct but also remember that it's only for routes received from iBGP peers
not eBGP peers.

There really is a lot of confusion about when to use or not use
synchronization much less what routes it affects. I spend extra time in the
Advanced BGP class that I teach ensuring that the students fully understand
synchronization.

Brian Dennis
CCIE #2210 (RS)(ISP/Dial)
CCSI #98640


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Ahmed Aden
Sent: Wednesday, February 14, 2001 9:54 AM
To: Brian Dennis
Cc: Rodgers Moore; [EMAIL PROTECTED]
Subject: RE: bgp questions



Thanks for the clarification.  So with 'no synchronization' set, every
peer who RECEIVES that route doesn't have to verify if there is an igp
route to
it, but the originator still checks before advertising it?


On Wed, 14 Feb 2001, Brian Dennis wrote:

 Sychonization only comes into play when a BGP route is learned from an
iBGP
 peer. If you are the origniator of the route you must have an IGP route.
 Disabling synchonization won't affect the originator of the route.

 Brian Dennis
 CCIE #2210 (RS)(ISP/Dial)
 CCSI #98640

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
 Ahmed Aden
 Sent: Wednesday, February 14, 2001 8:36 AM
 To: Rodgers Moore
 Cc: [EMAIL PROTECTED]
 Subject: Re: bgp questions



 Correct me if I'm wrong, but the only situation that bgp cares about IGP's
 synchronization
 is when bgp is explicitly configured to announce networks (i.e network
 x.x.x.x mask x.x.x.x) and it would have to check the igp to see if there
 is a valid route to that network.  This can be overridden by 'no
 synchronization'.  However, the default behavior is that bgp announces
 active (I'm not sure what activate means) routes (routes which are
 reachable via an IGP's routing table) to all configured bgp peers
 irrespective of whether
 they are an ibgp or ebgp peer.  For this reason, I would select A.  It's
 still very poorly worded, assuming 'activate' is not a typo.

 hope this helps


 On Wed, 14 Feb 2001, Rodgers Moore wrote:

  Yuck, really bad question.  No frame of reference, no nothin.  What is a
  activate route anyway?  Active route?
 
  I think the key to answering this question is the question: when would
BGP
  not report an active route?  When BGP and the IGP are not in sync, then
an
  active route would not be reported.
 
  I say "D" is the most likely suspect, although I would change BGP to
EBGP.
 
  Rodgers Moore
 
  ""Howard C. Berkowitz"" [EMAIL PROTECTED] wrote in message
  news:p05001900b6aff192dfe7@[63.216.127.98]...
   I would choose D , correct me if I am wrong
   --- David Tran [EMAIL PROTECTED] wrote:
 I have this question on my cisco prep exam
 fill-in-the-blank.  Please =
 help.
   
 A BGP router reports all activate routes based from
 BGP __.  This is =
 the default policy action for BGP routers.
   
 A. to all BGP peers
 B. to all IBGP peers
 C. to all EBGP peers
 D. and the IGP's configured on the router to all BGP
 peers
   
 I select choice a.  Is it correct?
   
 David Tran
  [EMAIL PROTECTED]
 
  
  
   It's a poorly written question.  If I was forced to pick, but I don't
   understand the first sentence.
  
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RE: Modem to Console Port

2001-02-14 Thread Brian Lodwick

Also another note if you are going to connect an OOB modem. You may want to 
configure the modem to pick up after like five rings. That way if a hacker 
is using a dialer program looking for modem tones they usually don't wait 
more than 2 rings before it hangs up and tries another.

Brian


From: "Chris Lemagie" [EMAIL PROTECTED]
Reply-To: "Chris Lemagie" [EMAIL PROTECTED]
To: "Chris Lemagie" [EMAIL PROTECTED], "John" [EMAIL PROTECTED],  
   [EMAIL PROTECTED]
Subject: RE: Modem to Console Port
Date: Wed, 14 Feb 2001 09:51:33 -0800

John brought one thing to light that I forgot to mention earlier.

By connecting a modem to the router, you are opening a security hole into
your network.  Make sure to set a timeout on the console port so that when 
a
user hangs up, the console session will timeout and another user can't come
in behind you and grab your console session.  You may also want to have
somebody at a remote branch physically unplug the phone cable from your
router after you have completed any configuration changes.  Better yet,
control access to your routers with Cisco Secure ACS.  You can then set
privilege levels on a user by user basis as well as logging access to your
networking infrastructure.

Hope this helps...

Chris Lemagie

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Chris Lemagie
Sent: Wednesday, February 14, 2001 8:18 AM
To: John; [EMAIL PROTECTED]
Subject: RE: Modem to Console Port


It is possible.

There is actually no configuration on the router.  You will need to set the
modem to talk at 9600, 8, N, 1 with no local echo.  You also need to set 
the
modem to auto answer.  Your modem should have documentation with the proper
"AT" commands that you will need to issue.  Save this configuration to the
modems NVRAM and plug it into the router.

Chris Lemagie...

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
John
Sent: Wednesday, February 14, 2001 7:51 AM
To: [EMAIL PROTECTED]
Subject: Modem to Console Port


Is is possible to connect a modem to the console port for remote
configuration on the Cisco 1600 series?

If so would you please provide me with a sample configuration?

Thank you in advance for your assistance.

John Huston
[EMAIL PROTECTED]


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Re: alternative to Cisco routers

2001-02-14 Thread John Nemeth

On May 31,  9:53pm, anthony kim wrote:
}
} Intersting thread. I didn't know cisco defined a small business so
} strictly. Is that an exam question? :)

 It came from the SMB sales essential course, which is a reseller
course.  However, it closely co-incides with other definitions I've
seen.

} Of course the bottom line is, you make technology recommendations on
} what the business can handle, what they require, and what they can
} afford. At some intersection of this triad, an answer may surface.

 Yep.

} I am fortunate in that my experience with networking people have all
} been with knowledgable and clever folks.

 Very fortunate.

}-- End of excerpt from anthony kim

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RE: alternative to Cisco routers

2001-02-14 Thread John Nemeth

On May 31,  9:58pm, anthony kim wrote:
} --- John Nemeth [EMAIL PROTECTED] wrote:
}  } 
}  } Is a real router a device which routes layer 3 packets? Or a
}  device
}  } "specifically designed" to route layer 3 packets. Your statement
}  } implies the latter. Whereas I believe the former.
}  
}   The latter.  A PC make be able to route packets, but that
}  doesn't
}  make it a real router.  The hardware device is going to be faster
}  (especially at the high end), more reliable, require much less
}  maintenance (which makes it cheaper in the long run), and easier to
}  install and setup (not to mention take up far less space).
} 
} John, you've just added qualifications to the definition of a real
} router. Am I correct then in saying you believe a real router is
} 
} a) a device that routes layer 3 packets
} b) a device strictly designed to route layer 3 packets
} c) a device that routes layer 3 fast and reliably
} d) all of the above
} 
} The cisco exam answer is: d)
} I'm just too damn liberal with my definitions so would have chosen a)

 I would say d).  Here's an analogy for you.  You can insert/remove
Philips (and, some other) screws by using a small slotted screwdriver.
Does that make the slotted screwdriver a Philips screwdriver?

}-- End of excerpt from anthony kim

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Re: alternative to Cisco routers

2001-02-14 Thread mtieast

I like the use of "real router". What is a "real" router. Routers route
using layer 3 info. PC's are and can be made routers. And yes they are
"real" routers.




-Original Message-
From: John Nemeth [EMAIL PROTECTED]
To: anthony kim [EMAIL PROTECTED]; Fowler, Robert J.
[EMAIL PROTECTED]; [EMAIL PROTECTED] [EMAIL PROTECTED]
Date: Wednesday, February 14, 2001 1:14 PM
Subject: RE: alternative to Cisco routers


On May 31,  8:23pm, anthony kim wrote:
} --- John Nemeth [EMAIL PROTECTED] wrote:
}  On Jul 7,  4:07am, "Fowler, Robert J." wrote:
}  }
}  } However it might be a good choice for someone who is building a
}  home lab. It
}  } is much cheaper to piece together some computers and throw zebra
}  on it than
}  } to buy several routers. I've never used Zebra but it sounds like
}  if you had
}  } some existing equipment and wanted to expand on that, couldn't
}  afford to buy
}  } another router but had some old PC's it would be the way to go,
}  since
}  } speed/reliability wouldn't be a real factor in a home lab. Any
}  thoughts?
} 
}   Although, you may learn something about the protocols, you
}  won't
}  learn anything about real routers.  You definitely need to get
}  hands on
}  with real routers.  Zebra could be used to simulate a secondary
}  router
}  in a multi-router experiment, but it isn't sufficient by itself.
}
} Is a real router a device which routes layer 3 packets? Or a device
} "specifically designed" to route layer 3 packets. Your statement
} implies the latter. Whereas I believe the former.

 The latter.  A PC make be able to route packets, but that doesn't
make it a real router.  The hardware device is going to be faster
(especially at the high end), more reliable, require much less
maintenance (which makes it cheaper in the long run), and easier to
install and setup (not to mention take up far less space).  I'm a huge
fan of UNIX and will tend to run just about everything on UNIX systems,
but even I realise that UNIX host based systems are not the correct
solution for every problem.

} You *will* learn about real routers because the pc is a real router.
} You may *not learn* anything about IOS or $VENDOR's routers.

 That is the purpose of getting Cisco certs...

}-- End of excerpt from anthony kim

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Automatic dialing

2001-02-14 Thread Amnesia


Hi all !!!

Has somebody configured a Cisco 800 series
in order to make an "automatic-dial" when the
router has booted up???

It must be done without external help as Internet
browsers asking for webpages, mail clients asking
for new mail, etc. I wanna know if it possible to make it
work as soon as possible. I haven't found anything
related to this in cisco web-documentation.

Anybody can help me !

Thank you very much in advance.

Miguel Angel Romero Arcas
Dpto. Técnica de Sistemas
CESSER Informática y Organización, S.L.

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Re: backup subinterface on another subinterface

2001-02-14 Thread Adam Wang

Thanks for all your input on setting up a floating
static suggestion, but the 2 PVCs that I have are both
active and in production, and each is carrying
different type of traffic.  

They are both acting as primary links.  I want to set
up something that if one fail, it will jump to the
other one.  I don't think floating static will work in
this case.

Adam



--- Kelly D Griffin [EMAIL PROTECTED] wrote:
 The way my company does it is to weight routes for
 the two PVC's.
 
 Serial0/0.1 point-to-point
 ip address 192.168.255.1 255.255.255.252
 no ip route-cache
 no cdp enable
 frame-relay interface-dlci 20
 !
 Serial0/0.2 point-to-point
 ip address 192.168.255.5 255.255.255.252
 no ip route-cache
 no cdp enable
 frame-relay interface-dlci 21
 !
 ip route 10.0.0.0 255.0.0.0 192.168.255.2
 ip route 10.0.0.0 255.0.0.0 192.168.255.6 200
 !
 end
 wr
 
 This says to route the traffic over S0/0.1 as it is
 directly connected.
 Route the traffic over S0/0.2 if the primary link
 should become unreachable.
 You have to be careful with the administrative
 distance on the backup route.
 If you are running a routing protocol (OSPF, RIP,
 etc.) you will have to
 take into account what the default distances are for
 these protocols.  Keep
 in mind that a route that points to an interface is
 distance 0 and a route
 to an IP address is distance 1.
 
 Kelly D Griffin, CCNA, CCDA
 Network Engineer
 Kg2 Network Design
 http://www.kg2.com
 
 
 - Original Message -
 From: "Adam Wang" [EMAIL PROTECTED]
 To: [EMAIL PROTECTED]
 Sent: Wednesday, February 14, 2001 10:08 AM
 Subject: backup subinterface on another subinterface
 
 
  Hi group,
 
  I have 2 PVCs setup using Frame Relay on a serial
  interface with 2 subinterafces, and I want these 2
  subinterfaces to backup each other when 1 fails.
 
  I did backup interface s0.2, but it won't allow a
  subinterface on the backup command, only the
 physical
  interface.  So backup interface s0 is possible.
 
  Why is that and how can I do this
 
 
  Thanks in advance
 
 
  Adam
 
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Terminal Server for beginners

2001-02-14 Thread Brian Lodwick

Group
I have been fighting with the performance of my terminal server for a few 
weeks now. It works, and I have been using it, but like I said I have been 
fighting with it. It seems to send characters to other ports when I haven't 
initiated a connection to that port. The way I can tell this is when I get 
onto that port it is responding to characters entered even though I haven't 
entered anything. This is quite peculiar. I have looked at many books to see 
if I am doing something wrong and the only indication was in Bruce Caslow's 
book saying if your terminal server incorrectly shows active connections on 
lines that don't have any connections established the command "modem host" 
on the line config will fix this. Well this didn't fix mine for s*#@. I 
finally figured out the way to fix mine was to add "modem inout" boom it 
works like a charm. I am running 12.0.8 on this 2511. Maybe this is 
something everyone already knew, but I didn't and maybe it will save someone 
else some pain.

config t
ip host r1 10.0.0.1 2001
int loopback 0
ip address 10.0.0.1 255.255.255.0
exit
line 1 8
transport input all
modem inout
exec-timeout 0 0


other routers assure the exec-timeout is set to 0 0 on the console.


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Re: Benefits of two PVC's

2001-02-14 Thread Pawel Sikora

- Original Message - 
From: "Roberts, Timothy" [EMAIL PROTECTED]


 
 I was wondering what all of the benefits of running two PVC's at one end of
 a frame circuit.

There are some situations when running two paralel PVCs is necessary in
FR clouds experiencing congestions.
Sometimes FR network are implemented in such way that
network device at cloud edge allow customers to transmit frames
exceeding CIR without setting DE bit at entry point.
When customer want to be sure that priority data frames within CIR bandwidth
would not be dropped, he must mark other nonpriority frames with DE bits.
Assuming that other customers transmit all frames within cir and above
without setting de bits, theirs frames are preferred at congestion points.
The workaround for this inequal treatment is to run two pvc's - one subscribed
with cir and one without cir, putting all nonpriority data into second pvc
not marking it with de bits.

P/


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Re: alternative to Cisco routers

2001-02-14 Thread John Chambers

Anthony,
Olives are just computer running JUNOS.  Juniper routers essentially have two
components:
Routing Engine (RE) and Packet Forwarding Engine (PFE).  RE interacts with PFE via an
NIC (Inter EtherExpress).  These Olives are essentially either FreeBSD or OpenBSD that
can be installed on a PC (they have to be run on Intel EtherExpress NIC) to simulate
pretty
much everything you want (i.e. RIP, OSPF, IS-IS, BGP, MPLS, etc...).  A very fine
product.

Am I correct?
John. C

anthony kim wrote:

 --- Mark Nguyen [EMAIL PROTECTED] wrote:
 
  On a related note, in my home lab I have 25xx's and Olives (PC with
  JunOS, based on a unix kernel).  I can easily bring the 25xx's to
  its
  knees while not even breaking a sweat on the Olives.  I heard
  rumors
  that Olives are equivalent to 4700's, but I have not confirmed that
  in
  testing.
 
  --
  Mark Nguyen
  Juniper Networks
  Senior Network Engineer
  Eastern Region IT/POC

 Mark

 Pardon my Juniper ignorance. What is an Olive and how much do they
 cost?

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RIF length Field Question

2001-02-14 Thread perryb

Hello all,

I'm a little confused over "length" bits in the RIF.  The Token Ring White
Paper (Lou Rossi), states that "bits 12 through 8 describe the total length
represented in bytes."  It goes on to say that a value of "a" indicates
there are 3 bridges, an "8" indicates there are 2 bridges, and a "6"
indicates there is one (1) bridge.

My question is this:  Does the above parameters take int0 account the very
last bridge i.e., since all RIFs end in a bridge of "0," is this last bridge
(0) included in the count of the length bits?

Example:

Packet type = specific route
Direction 
Frame size = 512

Host1--ring--bridge--ring--bridge--ring--Host2

Would this be a "0830...xxx0" or a "0A30...xxx0"

The reason that I ask, is because on several CCIE practice test, as well as
the actual written exam, the answers do not seem to regard this fine point.

thanks

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Re: Benefits of two PVC's

2001-02-14 Thread Andrew Cook

We use two local frame relay PVCs over point-to-point to manage CPE that do
bridging only.  We build one PVC for management with a private IP for our
use and a second PVC to bridge through to the ethernet port.  This avoids
any possible conflict with the customer addressing or with security issues.

Andrew Cook

- Original Message -
From: "Roberts, Timothy" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, February 14, 2001 12:27 PM
Subject: Benefits of two PVC's



 I was wondering what all of the benefits of running two PVC's at one end
of
 a frame circuit.

 telco

(PVC)cloudPV
 C1router1

 \_PVC2_router1

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DISTURBING: Spanning Tree Protocol Refuses to Cooperate!

2001-02-14 Thread Pierre-Alex

Here is another challenging problem I have. Anyone?

Switch 1912-EN is connected to Switch 2924XL via two trunks (Port A and port
B.)
The spanning tree has disabled port B to prevent a loop.
I am trying to force B to go in fowarding mode and have A be in blocking
mode.
I tried changing the cost of the path, but the swith rectified it to 10. So
I thought:
"well,  I can change the priority of the interfaces and reload the switch
and that should do the trick".
Well it did not (See below). I can only think of two things:

A. I have not understood proprely the use of a port priority and I am
changing the wrong parameter
B. I have changed the right parameter but there is something else that I am
missing in the configuration.

Port FastEthernet 0/26 of VLAN1 is Forwarding
   Port path cost 10, Port priority 100-- I changed this from 128
to 100
   Designated root has priority 32768, address 0050.3EF0.3580
   Designated bridge has priority 32768, address 0050.3EF0.3580
   Designated port is 22, path cost 0
   Timers: message age 20, forward delay 15, hold 1
--More--
Port FastEthernet 0/27 of VLAN1 is Blocking
   Port path cost 10, Port priority 0 --I
changed this from 128 to 0
   Designated root has priority 32768, address 0050.3EF0.3580
   Designated bridge has priority 32768, address 0050.3EF0.3580
   Designated port is 23, path cost 0
   Timers: message age 20, forward delay 15, hold 1
Pierre-Alex


As several people have found out recently, I **love** understanding all the
nuances of why technology works the way it does.  When things go wrong, it's
so much easier to identify a problem when you can compare what SHOULD be
happening to what IS occurring.  Took me a while to pick through everything,
but my spanning tree troubleshooting skill-set increased significantly as a
result of this exercise!  Thanks for the opportunity!


  -- Leigh Anne

-Original Message-
From: Pierre-Alex [mailto:[EMAIL PROTECTED]]
Sent: February 14, 2001 10:41 AM
To: [EMAIL PROTECTED]; Cisco Groupstudy (E-mail)
Cc: Dale Cunningham; [EMAIL PROTECTED]; [EMAIL PROTECTED];
[EMAIL PROTECTED]
Subject: RE:PROBLEM FIXED: -- DISTURBING: Spanning
Tree Protocol Does not Work.


HI LEIGH ANNE and everyone,

The problem was fixed by allowing VLANs out of the trunk on port f0/21. (See
below).
I don't have an amber light on the blocked port but since the show span
indicates that the port is blocked I can live with that. (Maybe TAC should
be the next step!)
I would like now to document the rules used to solve this problem: Leigh
Anne, please correct me if I am wrong!

1) The spanning protocol includes trunk ports in its calculation.
2) If a trunk is not allowed to trunk any VLAN, the port is considered
inactive
3) Since an inactive port does not forward traffic it does not create a loop
4) A port that does not create a loop will not be put in blocking mode
(which explains my earlier problem)

So LEIGH ANNE, when are you going to claim your CCIE? (My apology if you
already have it!)

A thousand thanks to Leigh Anne and all for the learning experience,

Pierre-Alex

**CONFIGURATION
PROBLEM**
C2924XL#sh int f 0/20 sw

Switchport: Enabled
Administrative mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: isl
Operational Trunking Encapsulation: isl
Negotiation of Trunking: Disabled
Access Mode VLAN: 0 ((Inactive))
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: ALL
Trunking VLANs Active: 1-3
Pruning VLANs Enabled: NONE

C2924XL#sh int f 0/21 sw
Name: Fa0/21
Switchport: Enabled
Administrative mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: isl
Operational Trunking Encapsulation: isl
Negotiation of Trunking: Disabled
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled:
NONE--
Pruning VLANs Enabled: NONE

**I AM FIXING THE
PROBLEM***

On interface f0/21 I did:

sw trunk allowed vlan all
sw trunk allowed vlan add 1
sw trunk allowed vlan add 2
sw trunk allowed vlan add 3

**PROBLEM
FIXED!!*



C2924XL#sh int f 0/21 sw
Name: Fa0/21
Switchport: Enabled
Administrative mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: isl
Operational Trunking Encapsulation: isl
Negotiation of Trunking: Disabled
Access Mode VLAN: 0 ((Inactive))
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled:
ALL--
Trunking VLANs Active:
1-3--
Pruning VLANs Enabled: NONE

**SPANNING PROTOCOL WITH ONE PORT
BLOCKED!**

Interface Fa0/20 (port 22) in Spanning tree 1 is FORWARDING
   

Re: Terminal Server for beginners

2001-02-14 Thread Akbar Kara

Under line 1 8, issuing a 'no exec' command should also do the trick. 
ak

Brian Lodwick wrote:
 
 Group
 I have been fighting with the performance of my terminal server for a few
 weeks now. It works, and I have been using it, but like I said I have been
 fighting with it. It seems to send characters to other ports when I haven't
 initiated a connection to that port. The way I can tell this is when I get
 onto that port it is responding to characters entered even though I haven't
 entered anything. This is quite peculiar. I have looked at many books to see
 if I am doing something wrong and the only indication was in Bruce Caslow's
 book saying if your terminal server incorrectly shows active connections on
 lines that don't have any connections established the command "modem host"
 on the line config will fix this. Well this didn't fix mine for s*#@. I
 finally figured out the way to fix mine was to add "modem inout" boom it
 works like a charm. I am running 12.0.8 on this 2511. Maybe this is
 something everyone already knew, but I didn't and maybe it will save someone
 else some pain.
 
 config t
 ip host r1 10.0.0.1 2001
 int loopback 0
 ip address 10.0.0.1 255.255.255.0
 exit
 line 1 8
 transport input all
 modem inout
 exec-timeout 0 0
 
 other routers assure the exec-timeout is set to 0 0 on the console.
 
 _
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-- 
Cheers,

Akbar Kara212.305.6869
Network Design [EMAIL PROTECTED]
Core Resources - Columbia Presbyterian [EMAIL PROTECTED]
==

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SMB and opportunities (was Alternative to Cisco Routers)

2001-02-14 Thread Howard C. Berkowitz





Anthony Kim continued,



Intersting thread. I didn't know cisco defined a small business so
strictly. Is that an exam question? :)

Historically, commercial data networking started with mainframes 
interconnected with leased lines.  These machines were either in 
large enterprises or in academic/research institutions.  SNA, for 
example, gave extensive operational control, and needed a 
considerable staff to support it.

I've seen a market research report that said:

 in 1982, 86% of networking customers could build and support their
  own networks
 in 1996, 14% of customers could do so.

It's not necessarily that enterprises are more or less clueful -- 
it's that the enterprises that get into communications are much 
smaller or more poorly budgeted.  The distinction has been made that 
networking began with the Fortune 500, but now has spread to the 
Fortune 5,000,000.

As business dependence on networking grows, the smaller companies 
have the alternatives:

  Without internal or external network support staff,
  wait for a major failure (hard downtime, or inability to service
  their customers) and go into bankruptcy.

  Hire from a scarce pool of qualified (certified?) people and watch
  their margins go down, if they don't have enough networking activity
  to keep these (expensive) people busy.  Go into bankruptcy.

  Buy networking products that are as turnkey as possible.

  Buy support, which may or may not stay within their margins.

Of course the bottom line is, you make technology recommendations on
what the business can handle, what they require, and what they can
afford. At some intersection of this triad, an answer may surface.

I am fortunate in that my experience with networking people have all
been with knowledgable and clever folks.



It has long been a valid assumption that no one ever went broke by 
underestimating the intelligence or taste of the public.


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Re: alternative to Cisco routers

2001-02-14 Thread Russ Kreigh

Well of course a 4700 (or equivalent) will handle more traffic than a
2501!!!

Thanks kinda not a fair comparison don't you think.

- Original Message -
From: "anthony kim" [EMAIL PROTECTED]
To: "Mark Nguyen" [EMAIL PROTECTED]; [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Wednesday, February 14, 2001 2:10 PM
Subject: Re: alternative to Cisco routers



 --- Mark Nguyen [EMAIL PROTECTED] wrote:
 
  On a related note, in my home lab I have 25xx's and Olives (PC with
  JunOS, based on a unix kernel).  I can easily bring the 25xx's to
  its
  knees while not even breaking a sweat on the Olives.  I heard
  rumors
  that Olives are equivalent to 4700's, but I have not confirmed that
  in
  testing.
 
  --
  Mark Nguyen
  Juniper Networks
  Senior Network Engineer
  Eastern Region IT/POC

 Mark

 Pardon my Juniper ignorance. What is an Olive and how much do they
 cost?



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Re: CCIE RS Going to be Replaced..!!

2001-02-14 Thread Jack Williams

You mean the same as a duck.

--Original Message--
From: "Rodgers Moore" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: February 14, 2001 6:02:58 AM GMT
Subject: Re: CCIE RS Going to be Replaced..!!


Witches or not, think about this.  Cisco is end of lifing the 2500 series
this year.  So it is reasonable to expect that all of the routers in the lab
will be 2600, 3600, and maybe 7200 series sometime this year.  Now if you
were to add in VIC's,WIC's and VWIC's the lab could get real interesting

Remember that just because the route floats doesn't mean it's made of wood.
If it weighs the same as a goose, then it's made of wood and of course, then
it is a witch.

Rodgers Moore

"Danial wood" [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 dear group

 I have heard a news abt the format of the CCIE RS
 exam is going to be changed in the next two months or
 so.Is that right?

 Danial


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