Re: "Window" field - TCP packet

[Priscilla Oppenheimer]

So what. We aren't talking about packet size. We're talking about window size.

At 07:54 PM 10/17/00, Pradeep Kumar wrote:
>Priscilla , Dale,
>
>I spend at least 2 hours per day on Etherpeek for troubleshooting and 
>analysing network recreates.
>
>There is an option for bargraph/pie chart of the Packet size distribution 
>which I use to see " what density of what size packets " in one scan of 
>the eye in real time.
>
>I am using Etherpeek 3.6
>
>Kumar
>
>
>
>
>-Original Message-
>From:Priscilla Oppenheimer [EMAIL PROTECTED]
>Sent:Tue, 17 Oct 2000 14:12:05 -0700
>To:  [EMAIL PROTECTED]
>Subject: Re: "Window" field - TCP packet
>
>
>Nice answer, Dale.
>
>Do you think he was literally asking for a utility that would show the
>window size as a station was transmitting? That would be quite useful
>actually...
>
>EtherPeek from www.WildPackets.com (used to be AG Group) lets you capture
>and display packets at the same time. So you could filter on your station
>and its partner and track windows that way. You could see the receive
>window rather easily, since it's size is advertised on every segment. The
>send window would be harder, requiring an analysis of sequence numbers and
>the other side's receive window.
>
>But I can't think of a utility that graphically shows send and receive
>windows for a transmitter. That would be really cool, wouldn't it?
>
>Priscilla
>
>
>At 03:55 PM 10/17/00, Dale Holmes wrote:
> >Each station in a TCP conversation will advertise a window which
> >represents the amount of buffer space that the station has available for
> >this conversation. The window size of a packet is the buffer available for
> >the station that is sending the packet, indicating to the recipient how
> >much data to send.
> >
> >It is called a "sliding window" because it is variable and will change
> >throughout the course of the conversation.
> >
> >For more detail on this, I would look at Douglas Comer's "Internetworking
> >with TCP/IP" volume I.
> >
> >I have not seen a utility that will display the window size during the
> >transmission of the packet. A sniffer will display all of the packet
> >fields, but only after you have captured the transfer and opted to display
> >it (but of course you knew that already)...
> >
> >Dale
> >[=`)
> >
> >
> >>From: "Billy Monroe" <[EMAIL PROTECTED]>
> >>Reply-To: "Billy Monroe" <[EMAIL PROTECTED]>
> >>To: [EMAIL PROTECTED]
> >>Subject: "Window" field - TCP packet
> >>Date: Tue, 17 Oct 2000 12:05:12 -0700
> >>
> >>Hello:
> >>
> >>Is there any way to see the size of the (sliding) window when transmiting a
> >>TCP packet ?
> >>
> >>I saw a "Window" field using a sniffer and the number was big 28765...
> >>Please correct me if I am wrong: I believe that is the buffer of the
> >>receiving station.
> >>
> >>Thanks,
> >>
> >>Ronaldo
> >>
> >>
> >>
> >>_
> >>FAQ, list archives, and subscription info:
> >>http://www.groupstudy.com/list/cisco.html
> >>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
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>
>
>
>Priscilla Oppenheimer
>http://www.priscilla.com
>
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RE: NAT twice, will this work?

[Francis Arigo]

I have used a very similar config. In our case, we requested an additional 
serial(/30) subnet from our ISP. We used that between the WAN router and the 
Firewall-1. Then the firewall is the only thing translating.

Francis Arigo

>From: Jason Jin <[EMAIL PROTECTED]>
>Reply-To: Jason Jin <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: RE: NAT twice, will this work?
>Date: Tue, 17 Oct 2000 12:10:31 -0400
>
>
>I have a situtation that I need to NAT twice, once on router,
>and then again on firewall-1.  I can't figure out wheather this
>will ever work , here 's the our network diagram:
>
>
>  WAN   DMZINTERNAL
>-| Router ||Firwall-1|--|HostA|--
>
>we are assigned address space 32.x.x.192-32.x.x.207
>from out ISP( WAN), since our  DMZ is using 172.24.100.0/24
>the router is doing static NAT to this range.  our internal network
>is 10.10.1.0/24.
>
>
>The IP address as folowes:
>
>   Router   = interface on DMZ 172.24.100.3 ( NATed)
>   Firewall-1: interface (qfe0)  on DMZ   172.24.100.2
>   interface (qfe1)  on internal 10.10.1.2
>
>HostA:  since I need to access host A from WAN side,
>   hostA  need to be NAT'ed at two place ,
>   at firewall-1 it NAT from 10.10.1.101 to 172.24.100.101
>   at Router it is NAT from 32.x.y.101 to 172.24.100.101.
>
>I have setup the firewall rules , route and arp entry on firewall-1
>for HostA, and address translation work fine for hostA, if
>I connect from DMZ.
>
>Now here's my problem: if I want connnect from hostB from wan
>side, the packet destined for 32.x.y.101 , the destination
>first NATed to 172.24.100.101 , then pickup by firwall-1
>who's listen for arp request, NATed to 10.10.1.101 ?
>will this work?
>
>one question : when somebody the DMZ sent out a arp request
>for 172.24.100.101, the firwall-1 will respond , but  will router
>respond too, since it is doing NAT for this address as well?
>any help is much appreciated.
>
>
>TIA,
>
>Jason
>
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Re: How do I assign an IP address to a switch cluster?

[Charlene Tango]

Hi,

You can assign ip addresses to both switches using interface Vlan 1. Or you 
can assgin only one ip address for the muster switch and using "rcommand"  
command to telnet to the cluster member.

Rgds
Boon Teck


>From: "Jeff Walzer" <[EMAIL PROTECTED]>
>Reply-To: "Jeff Walzer" <[EMAIL PROTECTED]>
>To: "'Cisco'" <[EMAIL PROTECTED]>
>Subject: How do I assign an IP address to a switch cluster?
>Date: Mon, 16 Oct 2000 10:50:28 -0400
>
>I want to cluster three 3548XL switches together using GBICs. I set up the
>first switch to be the command switch using 192.168.1.1 as the IP address.
>When setting up the other two switches do I assign them IP addresses (ex:
>192.168.1.2 and 192.168.1.3) as well or not?
>
>Looking at the documentation it says to just plug the switches in and then
>join the cluster but when you plug the switches in they walk you through 
>the
>config prompts to set up the switch. Should I skip these prompts that set
>the switch up originally?
>
>Thanks,
>Jeff
>
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Re: Resetting Switch configuration

[Kenny Sallee]

clear config all

- Original Message -
From: "Lists Wizard" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; "'Cisco group study'"
<[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, October 17, 2000 7:23 PM
Subject: Resetting Switch configuration


> Hello Networkers,
>
>
> I have a 6500 series catalyst switch. I need to reset its configuration to
> the manufacturer's default configuration. What command should I use to do
> that? Can any body help me with that.
>
>
>
> Rover
>
>
>
> __
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Re: "Window" field - TCP packet

[Pradeep Kumar]

Priscilla , Dale,

I spend at least 2 hours per day on Etherpeek for troubleshooting and analysing 
network recreates.

There is an option for bargraph/pie chart of the Packet size distribution which I use 
to see " what density of what size packets " in one scan of the eye in real time.

I am using Etherpeek 3.6

Kumar




-Original Message-
From:Priscilla Oppenheimer [EMAIL PROTECTED]
Sent:Tue, 17 Oct 2000 14:12:05 -0700
To:  [EMAIL PROTECTED]
Subject: Re: "Window" field - TCP packet


Nice answer, Dale.

Do you think he was literally asking for a utility that would show the 
window size as a station was transmitting? That would be quite useful 
actually...

EtherPeek from www.WildPackets.com (used to be AG Group) lets you capture 
and display packets at the same time. So you could filter on your station 
and its partner and track windows that way. You could see the receive 
window rather easily, since it's size is advertised on every segment. The 
send window would be harder, requiring an analysis of sequence numbers and 
the other side's receive window.

But I can't think of a utility that graphically shows send and receive 
windows for a transmitter. That would be really cool, wouldn't it?

Priscilla


At 03:55 PM 10/17/00, Dale Holmes wrote:
>Each station in a TCP conversation will advertise a window which 
>represents the amount of buffer space that the station has available for 
>this conversation. The window size of a packet is the buffer available for 
>the station that is sending the packet, indicating to the recipient how 
>much data to send.
>
>It is called a "sliding window" because it is variable and will change 
>throughout the course of the conversation.
>
>For more detail on this, I would look at Douglas Comer's "Internetworking 
>with TCP/IP" volume I.
>
>I have not seen a utility that will display the window size during the 
>transmission of the packet. A sniffer will display all of the packet 
>fields, but only after you have captured the transfer and opted to display 
>it (but of course you knew that already)...
>
>Dale
>[=`)
>
>
>>From: "Billy Monroe" <[EMAIL PROTECTED]>
>>Reply-To: "Billy Monroe" <[EMAIL PROTECTED]>
>>To: [EMAIL PROTECTED]
>>Subject: "Window" field - TCP packet
>>Date: Tue, 17 Oct 2000 12:05:12 -0700
>>
>>Hello:
>>
>>Is there any way to see the size of the (sliding) window when transmiting a
>>TCP packet ?
>>
>>I saw a "Window" field using a sniffer and the number was big 28765...
>>Please correct me if I am wrong: I believe that is the buffer of the
>>receiving station.
>>
>>Thanks,
>>
>>Ronaldo
>>
>>
>>
>>_
>>FAQ, list archives, and subscription info: 
>>http://www.groupstudy.com/list/cisco.html
>>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
>_
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>
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Priscilla Oppenheimer
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Re: HSRP Lab... :-(...u need a break dude

[Pradeep Kumar]

I simulated your situation in my lab. I was actually trying out VRRP.I had a " 
transparent proxy arp" running.
later , i dismantled the whole thing to factory and noticed that the only way to 
achieve what u have achieved is by configuring static routes.

Check your route tables.





-Original Message-
From:Bharat Suneja [EMAIL PROTECTED]
Sent:Tue, 17 Oct 2000 16:46:48 -0700
To:  [EMAIL PROTECTED]
Subject: Re: HSRP Lab... :-(...u need a break dude


Pradeep,

That was a test in the lab. It was a fairly simple configuration, I'm sure I
can replicate it whenever. Let me try and do that. However, the original
configs have since been erased. Let me try and replicate the problem and
I'll mail you the configs offline.

Bharat

""Pradeep Kumar"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> These are not configs. Send the router configs. Someone in the group did
bring out doubtfuly though, " Proxy ARP "
>
> Pull the configs of the router. I am sure we will be able to figure it
out.
>
> Well, do u have access to the remote router ?
>
>
>
>
> -Original Message-
> From:Bharat Suneja [EMAIL PROTECTED]
> Sent:Sun, 15 Oct 2000 22:30:00 -0700
> To:  [EMAIL PROTECTED]
> Subject: Re: HSRP Lab... :-(...u need a break dude
>
>
> Pradeep,
>
> Here is the config :
>
> E0 of router B is on the same segment. Here is the IP config :
>
> Router A:
> E0 - 192.1.1.1, 255.255.255.0
> S0 - 192.3.1.1, 255.255.255.0
>
> Router B:
> E0 - 192.1.1.2, 255.255.255.0
> S0 - 192.2.1.1, 255.255.255.0
>
> Local PC: 192.1.1.20, 255.255.255.0, Default Gateway 192.1.1.1
>
> Router C:
> S0 - 192.3.1.2, 255.255.255.0 (is connected to S0 of Router A)
> S1 - 192.2.1.2, 255.255.255.0 (is connected to S0 of Router B)
> E0 - 192.4.1.1, 255.255.255.0 (is connected to Remote PC)
>
> Remote PC: 192.4.1.20, 255.255.255.0, Default Gateway 192.4.1.1 (Router C)
>
> Router A, Router B & Local PC are connected to a hub.
>
> Makes sense... ???
>
> Bharat
>
>
> ""Pradeep Kumar"" <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> >
> > Bharat,
> > I think you are still working the night shifts and need a break.
> >
> > PC on remote router WILL NOT be able to "talk to " the Win 95 client
> connected to the hub. Period.
> >
> > If HSRP is not configured
> > And If
> > There is one and only one ( Router A ) default gateway configured
> > And if
> > There is no entry of Router B interface as gateway 2 ( multiple gateways
> for one client is possible)
> > Then
> > Win 95 will not talk to remote PC
> > But if
> > Win 95 configured with D/G -II = Router B E0,
> > Then
> > They will
> > Else if HSRP
> > end if
> >
> > Hope that   helps.It will
> >
> >
> >
> >
> > -Original Message-
> > From:Bharat Suneja [EMAIL PROTECTED]
> > Sent:Thu, 21 Sep 2000 15:52:59 -0700
> > To:  [EMAIL PROTECTED]
> > Subject: HSRP Lab... :-(
> >
> >
> > Hi all,
> >
> > I was doing a HSRP lab. Two routers have their E0 connected to hub. A
> Win95
> > PC is also connected to the hub. S0 of both routers connected to a
remote
> > router with a PC on E0 of remote router. Routing Protocol: EIGRP.
> >
> > Now, before configuring HSRP on the local routers, if I disconnect E0 on
> > Router A from the hub, the PC connected to the hub should not be able to
> > forward packets because its default gateway (Router A) is down.
> >
> > However, I find that the PC can still communicate with the remote
> network -
> > the second router (Router B) forwards the packets!! This is something I
> > didn't know before - and the OS on the PC is Windows 95!!!
> >
> > My questions:
> > 1. Is this a Win95 feature ??? (doubtful as it sounds!!)
> > 2. Is this something to do with RDP ???
> > 3. Is this something to do with ARP ??? (PC broadcasts for default
gateway
> > and Router B replies when router A is down??).
> >
> > If 2 and 3 are true, what's the purpose of HSRP ???
> >
> > Thanks in advance,
> >
> > Bharat Suneja
> >
> >
> > _
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
> >
> >
> >
>
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Resetting Switch configuration

[Lists Wizard]

Hello Networkers,


I have a 6500 series catalyst switch. I need to reset its configuration to
the manufacturer's default configuration. What command should I use to do
that? Can any body help me with that.



Rover



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Re: HSRP Lab... :-(

[Pradeep Kumar]

You can look up the arp tables on all the devices. this way you will be able to draw a 
route map.

give it a try



-Original Message-
From:Bharat Suneja [EMAIL PROTECTED]
Sent:Tue, 17 Oct 2000 16:54:18 -0700
To:  [EMAIL PROTECTED]
Subject: Re: HSRP Lab... :-(


Folks,

If this was the handiwork of Proxy ARP, how can I disable that on both the
routers ?

Thanks,

Bharat

""Pradeep Kumar"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Bharat. Your case is giving sleepless nights. This is what I will suggest
to crack th issue. Poke a Sniffer in between the PC and Router set one
first - check Source -Destn and then poke the sniffer between the router set
and the remote router. YOu will get the answer.
>
>
>
>
>
> -Original Message-
> From:Michael Le [EMAIL PROTECTED]
> Sent:Sun, 15 Oct 2000 21:45:54 -0700 (PDT)
> To:  [EMAIL PROTECTED], [EMAIL PROTECTED]
> Subject: Re: HSRP Lab... :-(
>
>
> If you have a second gateway set, a host will
> eventually use that second gateway. HSRP works a lot
> faster than this, since it doesn't have to wait for
> the ARP to timeout.
> Other than that, I don't see how RouterB would route
> the packets. I don't think PCs broadcast for default
> gateways, but I could be wrong.
>
> Mike
>
> --- Bharat Suneja <[EMAIL PROTECTED]> wrote:
> > Hi all,
> >
> > I was doing a HSRP lab. Two routers have their E0
> > connected to hub. A Win95
> > PC is also connected to the hub. S0 of both routers
> > connected to a remote
> > router with a PC on E0 of remote router. Routing
> > Protocol: EIGRP.
> >
> > Now, before configuring HSRP on the local routers,
> > if I disconnect E0 on
> > Router A from the hub, the PC connected to the hub
> > should not be able to
> > forward packets because its default gateway (Router
> > A) is down.
> >
> > However, I find that the PC can still communicate
> > with the remote network -
> > the second router (Router B) forwards the packets!!
> > This is something I
> > didn't know before - and the OS on the PC is Windows
> > 95!!!
> >
> > My questions:
> > 1. Is this a Win95 feature ??? (doubtful as it
> > sounds!!)
> > 2. Is this something to do with RDP ???
> > 3. Is this something to do with ARP ??? (PC
> > broadcasts for default gateway
> > and Router B replies when router A is down??).
> >
> > If 2 and 3 are true, what's the purpose of HSRP ???
> >
> > Thanks in advance,
> >
> > Bharat Suneja
> >
> >
> > _
> > FAQ, list archives, and subscription info:
> > http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to
> [EMAIL PROTECTED]
>
>
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RE: Firewall in ATM environment (design question).

[Ryan Ngai Hon Kong]

Title: RE: Firewall in ATM environment (design question).



Sorry 
for the confusion caused yesterday.
Ignoring the fact of the Internet bandwidth (say E1 line), they were 
using the Cisco 3600 series router to connect
to 
Internet. The reason why we put a firewall in my diagram was to maintain a 
secure connection between
branch 
to branch, LAN to LAN and branch/LAN to Internet.
 
The 
scenario such as Remote Network A (ATM connection to the core ATM 
switch) will need a secure
connection either inbound or outbound traffic. Others such as LAN A or B 
might prohibit from any other
source 
to came into their network.
What I had in mind or option I 
could drafted out are like below:
 
a) Implement a L3 catalyst switch to connect Remote LAN A & B via a 
VLAN to the Internet and filter
any 
incoming traffic from other source other than from the Internet 
router.
 
b) Use 
e-LANE (I'm a bit confuse with this, but it's an opinion from 
friends).
 
Please 
feel free to look into the diagram at http://www.geocities.com/ryanhk/diagram.jpg
 
Thank 
you.
Ryan Ngai @ ENTE-mail: hkngai    
Ext:6805 

  -Original Message-From: Greene, Patrick 
  [mailto:[EMAIL PROTECTED]]Sent: Tuesday, October 17, 2000 
  10:24 PMTo: 'Ryan Ngai Hon Kong'; 
  '[EMAIL PROTECTED]'Subject: RE: Firewall in ATM environment 
  (design question).
  Ryan, What sort of Internet link do 
  you have..what speed?  What model router do you have at the 
  internet.  You may want to just put the Firewall Feature Set on your 
  internet router an be done with it, depending on the link speed going to 
  Net.  
  Patrick Greene 
  -Original Message- From: Ryan 
  Ngai Hon Kong [mailto:[EMAIL PROTECTED]] Sent: Tuesday, October 17, 2000 3:45 AM To: 
  '[EMAIL PROTECTED]' Subject: RE: Firewall in ATM 
  environment (design question). 
  Ryan Ngai @ ENT E-mail: 
  hkngai    Ext:6805 
  -Original Message- From: Ryan 
  Ngai Hon Kong Sent: Tuesday, October 17, 2000 12:00 
  PM To: '[EMAIL PROTECTED]' Subject: Firewall in ATM environment (design question). 
  Hi guys, 
  Just another design question. 
      
      - non cisco ATM 
  switch  -   Cisco Router - Internet 
  ATM     
      - non cisco ATM switch  - 
    LAN 1 Core    
      - non cisco ATM switch  - 
    Internal Network Switch  - non cisco ATM switch  - 
    Remote Network A 
      
      - non cisco ATM 
  switch  -   Remote Network B 
      
      - non cisco ATM 
  switch  -   LAN 2 
  Where do you think we can position a firewall? 
  Other alternative such as create LANE or propose switch to 
  create VLAN is welcome. 
  Thanks. 
  Ryan Ngai @ ENT E-mail: 
  hkngai    Ext:6805 
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OT : HP Openview to monitor router and switch

[Benny Leong (HTHK - Senior Engineer II - iServices Development, NNSD)]

Harald,

My Openview is version 6.1.1. From the readme file, this trapd.41x is
required on Openview 4.1 only.

--
From:  Harald Volz [SMTP:[EMAIL PROTECTED]]
Sent:  Tuesday, October 17, 2000 9:28 PM
To:  [EMAIL PROTECTED]
Subject:  Re: OT : HP Openview to monitor router and switch

HI you need to include this file into your HP-OV system (follow
instructions inside the
file)

ftp://ftpeng.cisco.com/pub/mibs/contrib/trapd.41x

regards,
harald

"Benny Leong (HTHK - Senior Engineer II - iServices Development,
NNSD)" schrieb:

> I need to monitor Cisco router 7206 and Catalyst 5509 using HP
Openview
> network management station.  I have loaded the
CISCO-GENERAL-TRAPS.my,
> however, the station cannot interpret the trap generated by the
routers.
> What goes wrong ?
>
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CCNP

[sanjay Hooda]

thanx to alll of U guys for yr answers to my
mails..I became CCNP on 16 OCt
thanx to all of U guys for U r help
Sanjay hooda

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Resounces for BSCN

[Vivek Rana]

Hi
 
Studying in a remote place in the Himalayas for the 
BSCN exam.  I just have 2 books - BPB ACRC book and CiscoPress ACRC exam 
cerification guide and ocassional access to CISCO website through 
Internet.  
 
Do you think these 3 resouces will be sufficient to 
get me through BSCN exam.
 
Thanks
 
Vivek Rana
Kathmandu, Nepal
 
 

Re: Token ring and duplex

[Priscilla Oppenheimer]

The Dedicated Token Ring port adapter (PA-4R-DTR) is available on Cisco 
7500 series routers, Cisco 7200 series routers, and Cisco 7000 series 
routers with the 7000 Series Route Switch Processor (RSP7000) and 7000 
Series Chassis Interface (RSP7000CI).

The PA-4R-DTR provides up to four IBM Token Ring or IEEE 802.5 Token Ring 
interfaces. Each Token Ring interface can be set for 4 Mbps or 16 Mbps 
half-duplex or full-duplex operation and can operate as a standard Token 
Ring station or as a concentrator port. The default for all interfaces is 
Token Ring station mode with half-duplex 16-Mbps operation. The PA-4R-DTR 
connects over Type 1 lobe or Type 3 lobe cables, with each interface 
providing an RJ-45 receptacle.

So, Token Ring does have a "full-duplex" operation. I guess you would use 
it on back-to-back links, just like you use full-duplex Ethernet on 
back-to-back links.

Priscilla

At 05:13 PM 10/17/00, Ejay Hire wrote:
>Full-Duplex/Half-Duplex settings do not apply in a Token ring environment.
>
>Duplex settings deterrmine whether or not a system can recieve and 
>transmit at the smae time in a CSMA/_C_ollision _D_etect (Ethernet) 
>environment.
>Token Ring Does not use CSMA/CD, but use token-passing instead.
>
>On a Token Ring network, only one system transmits at a time, all of the 
>others listen.
>
>
>Original Message Follows
>From: "SH Wesson" <[EMAIL PROTECTED]>
>Reply-To: "SH Wesson" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Token ring and duplex
>Date: Tue, 17 Oct 2000 18:07:16 GMT
>
>If a token ring is running at a speed of 16, should the duplex be full or
>half.  If it's at half, what may be some problems as a result of it.
>thanks.
>_
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Priscilla Oppenheimer
http://www.priscilla.com

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External & Internal BGP

[FAISAL ATHAR]

Hi,

Can any one explain the purpose of Internal BGP.According to my knowledge it
it used  between sites with in the same autonomous system.

But Question is that BGP is Exterior routing protocol,develop mainly to
connect two different  autonomous systems, then what is the purpose of Using
Internal BGP, within the same autonomous sytems although we could use any
other Interior routing protocol there.

Thanks for clearing my confusion.

Regards,

Faisal. 


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No Subject

[ganapathi bhat]

Hi,

  I have a question regarding VTY line and it's configuration...atleast in 
CISCO

1) One can have individual configuration for each vty line...suppose i have 
configured 2 VTY lines to give telnet access..but with different password...

Now suppose, no one has opened a session with the configured router..if i 
try to telnetby default it will go to VTY 1..suppose i know only VTY2 
password..then i can't telnet to that router...otherwise i have to open one 
more telnet session so that i will land in VTY2

My question is,is it possible to direct my telnet session to specific vty 
line..eg: telnet 1.1.1.1 VTY 2so that i can give different passsword to 
different line...

...
2)access-class  in|out...what is the importance of this command in 
line console 0 context...how one can filter based on ip address..for console 
session...

i tried many combination i did't get much..out of it..
..
Can some one give me reference where i can go through for these topici 
tried cisco site...


Could some one highlighht on this
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Re: DDS encapsulation in Australia

[M. A.]

Hi all,

Thanks to everyone who has contributed.  I now understand that DDS is simply
a layer-1 specification.  And I've simply configured the serial interface on
the Cisco router with an IP address, as well as PPP encapsulation.  It works
beautifully.

Thank you all again
Martin

"Matt Martin" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
I would also add that it is only a physical media. Think of it as a T-1,
T-3, sonet etc.. The encapsulation has no bearing on the physical media or
farming in this
case. DDS is a older way of delivering a 56k circuit to ensure 1's density
on the
T-1 by inserting a 1 in every 8th bit of that particular DS0.


Jesmond Psaila wrote:
  You can use both , you may even use frame over dds if you want, most of
the times it is presented to you in X.21, so higher layer encapsulation
should not matter, as long as both ends match.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of John
Covey
Sent: Tuesday, October 17, 2000 2:16 PM
To: [EMAIL PROTECTED]
Subject: Re: DDS encapsulation in Australia

I'd say, more than likely ppp
""M. A."" <[EMAIL PROTECTED]> wrote in message
news:001201c0380f$e3689240$[EMAIL PROTECTED] gang, This
is a question related to the DDS (I think it stands for Digital Data
Service) WAN links provided by Telstra in Australia.  What's the
encapsulation to be used on DDS links?  Is it PPP or HDLC? Also, does anyone
have an example configuration for DDS under serial interfaces? Much
appreciate any help! Martin


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Re: HSRP Lab... :-(

[Bharat Suneja]

Folks,

If this was the handiwork of Proxy ARP, how can I disable that on both the
routers ?

Thanks,

Bharat

""Pradeep Kumar"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Bharat. Your case is giving sleepless nights. This is what I will suggest
to crack th issue. Poke a Sniffer in between the PC and Router set one
first - check Source -Destn and then poke the sniffer between the router set
and the remote router. YOu will get the answer.
>
>
>
>
>
> -Original Message-
> From:Michael Le [EMAIL PROTECTED]
> Sent:Sun, 15 Oct 2000 21:45:54 -0700 (PDT)
> To:  [EMAIL PROTECTED], [EMAIL PROTECTED]
> Subject: Re: HSRP Lab... :-(
>
>
> If you have a second gateway set, a host will
> eventually use that second gateway. HSRP works a lot
> faster than this, since it doesn't have to wait for
> the ARP to timeout.
> Other than that, I don't see how RouterB would route
> the packets. I don't think PCs broadcast for default
> gateways, but I could be wrong.
>
> Mike
>
> --- Bharat Suneja <[EMAIL PROTECTED]> wrote:
> > Hi all,
> >
> > I was doing a HSRP lab. Two routers have their E0
> > connected to hub. A Win95
> > PC is also connected to the hub. S0 of both routers
> > connected to a remote
> > router with a PC on E0 of remote router. Routing
> > Protocol: EIGRP.
> >
> > Now, before configuring HSRP on the local routers,
> > if I disconnect E0 on
> > Router A from the hub, the PC connected to the hub
> > should not be able to
> > forward packets because its default gateway (Router
> > A) is down.
> >
> > However, I find that the PC can still communicate
> > with the remote network -
> > the second router (Router B) forwards the packets!!
> > This is something I
> > didn't know before - and the OS on the PC is Windows
> > 95!!!
> >
> > My questions:
> > 1. Is this a Win95 feature ??? (doubtful as it
> > sounds!!)
> > 2. Is this something to do with RDP ???
> > 3. Is this something to do with ARP ??? (PC
> > broadcasts for default gateway
> > and Router B replies when router A is down??).
> >
> > If 2 and 3 are true, what's the purpose of HSRP ???
> >
> > Thanks in advance,
> >
> > Bharat Suneja
> >
> >
> > _
> > FAQ, list archives, and subscription info:
> > http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to
> [EMAIL PROTECTED]
>
>
> __
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>
>
>
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Caslow book and IDSN switch

[Tan]

Friends
I have started reading throught Bridge, Routers andSwitches book by Caslow.
I came across something on one of the pages which I found interesting.
On the last line on Pg 19 which continues on to page 20, he says that we are
going to configure a Cisco 2522 as an ISDN simulator.
Is that possible?
Would someone on this list care to comment on this and let me know how to go
about doing that?
Please let me know. I am sure that are many on this list who would be
interested as well.

Thanks

Tan
- Original Message -
From: "Wojtek Zlobicki" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Tuesday, October 17, 2000 7:33 PM
Subject: Re: Costco has the new CCNA 2.0 book for $30!!!


> Which book ?
>
>
> - Original Message -
> From: <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Cc: <[EMAIL PROTECTED]>
> Sent: Tuesday, October 17, 2000 2:55 AM
> Subject: Re: Costco has the new CCNA 2.0 book for $30!!!
>
>
> > Costco has the new CCNA 2.0 book for $30!!!  I just saw it yesterday...
> too
> > bad I paid $50 already:-(
> >
> > _
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
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Re: HSRP Lab... :-(...u need a break dude

[Bharat Suneja]

Pradeep,

That was a test in the lab. It was a fairly simple configuration, I'm sure I
can replicate it whenever. Let me try and do that. However, the original
configs have since been erased. Let me try and replicate the problem and
I'll mail you the configs offline.

Bharat

""Pradeep Kumar"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> These are not configs. Send the router configs. Someone in the group did
bring out doubtfuly though, " Proxy ARP "
>
> Pull the configs of the router. I am sure we will be able to figure it
out.
>
> Well, do u have access to the remote router ?
>
>
>
>
> -Original Message-
> From:Bharat Suneja [EMAIL PROTECTED]
> Sent:Sun, 15 Oct 2000 22:30:00 -0700
> To:  [EMAIL PROTECTED]
> Subject: Re: HSRP Lab... :-(...u need a break dude
>
>
> Pradeep,
>
> Here is the config :
>
> E0 of router B is on the same segment. Here is the IP config :
>
> Router A:
> E0 - 192.1.1.1, 255.255.255.0
> S0 - 192.3.1.1, 255.255.255.0
>
> Router B:
> E0 - 192.1.1.2, 255.255.255.0
> S0 - 192.2.1.1, 255.255.255.0
>
> Local PC: 192.1.1.20, 255.255.255.0, Default Gateway 192.1.1.1
>
> Router C:
> S0 - 192.3.1.2, 255.255.255.0 (is connected to S0 of Router A)
> S1 - 192.2.1.2, 255.255.255.0 (is connected to S0 of Router B)
> E0 - 192.4.1.1, 255.255.255.0 (is connected to Remote PC)
>
> Remote PC: 192.4.1.20, 255.255.255.0, Default Gateway 192.4.1.1 (Router C)
>
> Router A, Router B & Local PC are connected to a hub.
>
> Makes sense... ???
>
> Bharat
>
>
> ""Pradeep Kumar"" <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> >
> > Bharat,
> > I think you are still working the night shifts and need a break.
> >
> > PC on remote router WILL NOT be able to "talk to " the Win 95 client
> connected to the hub. Period.
> >
> > If HSRP is not configured
> > And If
> > There is one and only one ( Router A ) default gateway configured
> > And if
> > There is no entry of Router B interface as gateway 2 ( multiple gateways
> for one client is possible)
> > Then
> > Win 95 will not talk to remote PC
> > But if
> > Win 95 configured with D/G -II = Router B E0,
> > Then
> > They will
> > Else if HSRP
> > end if
> >
> > Hope that   helps.It will
> >
> >
> >
> >
> > -Original Message-
> > From:Bharat Suneja [EMAIL PROTECTED]
> > Sent:Thu, 21 Sep 2000 15:52:59 -0700
> > To:  [EMAIL PROTECTED]
> > Subject: HSRP Lab... :-(
> >
> >
> > Hi all,
> >
> > I was doing a HSRP lab. Two routers have their E0 connected to hub. A
> Win95
> > PC is also connected to the hub. S0 of both routers connected to a
remote
> > router with a PC on E0 of remote router. Routing Protocol: EIGRP.
> >
> > Now, before configuring HSRP on the local routers, if I disconnect E0 on
> > Router A from the hub, the PC connected to the hub should not be able to
> > forward packets because its default gateway (Router A) is down.
> >
> > However, I find that the PC can still communicate with the remote
> network -
> > the second router (Router B) forwards the packets!! This is something I
> > didn't know before - and the OS on the PC is Windows 95!!!
> >
> > My questions:
> > 1. Is this a Win95 feature ??? (doubtful as it sounds!!)
> > 2. Is this something to do with RDP ???
> > 3. Is this something to do with ARP ??? (PC broadcasts for default
gateway
> > and Router B replies when router A is down??).
> >
> > If 2 and 3 are true, what's the purpose of HSRP ???
> >
> > Thanks in advance,
> >
> > Bharat Suneja
> >
> >
> > _
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
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> >
> >
> >
> >
>
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> center.
> > Visto.com. Life on the Dot.
> >
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> >
>
>
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Re: Costco has the new CCNA 2.0 book for $30!!!

[Wojtek Zlobicki]

Which book ?


- Original Message -
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Tuesday, October 17, 2000 2:55 AM
Subject: Re: Costco has the new CCNA 2.0 book for $30!!!


> Costco has the new CCNA 2.0 book for $30!!!  I just saw it yesterday...
too
> bad I paid $50 already:-(
>
> _
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http://www.groupstudy.com/list/cisco.html
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Re: Hand over the domain with the phrase "cisco" to cisco.com?

[Wojtek Zlobicki]

But his site does have Cisco content as well as a great deal of the data is
coppied straing from their site.  This is a problem.  Secondly, I really
would not want to mess with Cisco's legal dept.


- Original Message -
From: "whatshakin" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, October 17, 2000 3:08 AM
Subject: Re: Hand over the domain with the phrase "cisco" to cisco.com?


> It is not illegal to have the Cisco name in your domain name unless you
use
> it for Cisco Systems content.  After all, there is a Cisco fish, drink,
city
> and kid to name just a few, and none of those are in violation of the
Cisco
> Systems trademark.
>
> Tell them you'll hand it over for $10K or a free Catalyst 8500 if they
want
> it that badly!  :-)
>
>
> - Original Message -
> From: DotCom CiscoSite <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Monday, October 16, 2000 11:25 PM
> Subject: Hand over the domain with the phrase "cisco" to cisco.com?
>
>
> > Dear All Cisco GroupStudy Members,
> >
> > I would like to thank the Cisco GroupStudy Mailing
> > List for the contribution on the Cisco Certification,
> > and for the information which is very useful, with
> > some have been put to my site: ciscosite.com.
> >
> > I have just received some messages stating that the
> > ciscosite.com should be handed over to Cisco because
> > of using the phrase "cisco" and because of the
> > attached reasons. Does anyone of you have the problem
> > like this, that the domain name should be handed over
> > to Cisco? I would like to know this further because
> > it's the only domain name I have ever registered right
> > now, and I have promoted it even in my namecards.
> >
> > And concerning this, I have replied to Brobeck that I
> > would better appeal this case to the GroupStudy first
> > before making any further steps. So all of your
> > suggestions are very expected.
> >
> > Thanks in advance for your comments regarding this.
> >
> > With Sincerity,
> > Wisin
> > http://www.ciscosite.com
> >
> > Attached message:
> >
> > Dear Wisin,
> >
> > I will respond to your questions in turn.
> >
> > First, while we appreciate your stated willingness to
> > comply with Cisco's
> > requests, we note that the changes we have requested
> > have not been made to
> > your site to date.  Please ensure that these changes
> > are completed by
> > October 17, 2000.
> >
> > Second, the fact that a registrar permits registration
> > of a domain name has
> > no bearing on whether the domain name is in violation
> > of another party's
> > trademark rights.  Registrars do not make independent
> > determinations of the
> > propriety of a domain name registration; they simply
> > determine whether a
> > name has been registered previously.  The fact that
> > you actually registered
> > ciscosite.com does not give you the right to use
> > Cisco's trademark as part
> > of your domain name.
> >
> > Finally, Cisco does not provide compensation for the
> > discontinued use of a
> > domain name.  Cisco will provide you with compensation
> > for the actual cost
> > of transferring the domain name to Cisco, and will
> > permit you to use the
> > domain name for a limited period of time for the sole
> > purpose of informing
> > users of the address of your new website.  If you
> > intend to use the site
> > temporarily to direct people to your new site, please
> > commence this use
> > immediately and ensure that the site is taken down by
> > October 17, 2000.
> >
> > Thank you for your continued cooperation.
> >
> > Sincerely,
> > BROBECK PHLEGER & HARRISON LLP
> > http://www.brobeck.com
> >
> > __
> > Do You Yahoo!?
> > Yahoo! Messenger - Talk while you surf!  It's FREE.
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> >
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Optimizing link

[net974 at Yahoo]

Hi,
 
What are the possible ways through which we can otimize 
the link and use maximum out of a leased line. 
 
TIA
 
Gm
 

IPX snapshot

[Hubert Pun]

when I am doing IPX snapshot for IPX/RIP, (I don't want the RIP and SAP
to activate the link), can I have
access-list 900 permit any
dialer-list 1 protocol ipx list 900
as the dialer list?

and I did not have the following configuartion.
 ipx watchdog-spoof
 ipx spx-spoof??

Somehow I can't get that work.

Also, what is the use of the following statement for?
 dialer map snapshot 1 name router_A broadcast 4371641
Is the above statement only needed on the client side?  or also on the
server side too?

Thanks in advanced

Hubert


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Re: VLAN's

[Kenneth Lorenzo]

You can use lmhosts files to contact the PDC in a separate VLAN
You can use a WINS server to contact the PDC in a separate VLAN
You can use BDC in each VLAN which is the most expensive of all

The WINS is the easiest to configure...

""Asad Jafari"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Hello All,

I have some questions about VLAN. Can someone send me a good resource for
VLAN (Books, articles, etc...)
Can you have all VLAN's use the same PDC ? do you have to have a BDC on each
VLAN?

Thanks in advance.





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Re: VLAN's

[Gno Phun]

Probably one of the best books on Vlans is, Cisco LAN Switching, by Clark
and Hamilton.

""Ejay Hire"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> No, You only need one PDC, the systems can log on to the network acfross a
> router hop if they have lmhosts files.  Alternately, you can use a 802.10
> Capable Nic, and connect your PDC to a trunk port.  Then you can give the
> PDc an iP in every VLAN/Subnet.
>
> "Cisco Ios Switching Services" and the Sybex CCNA 2.0 book are pretty good
> on the Mechanics and How-to on VLAN's.  "Top Down Network Design" and the
> Cisco Documentation's "Designing Cisco Networks" are very good on the
"what"
> and "why"
>
> Good Luck.
> -Ejay
>
> Original Message Follows
> From: "Asad Jafari" <[EMAIL PROTECTED]>
> Reply-To: "Asad Jafari" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Subject: VLAN's
> Date: Tue, 17 Oct 2000 13:05:08 -0700
>
> Hello All,
>
> I have some questions about VLAN. Can someone send me a good resource for
> VLAN (Books, articles, etc...)
> Can you have all VLAN's use the same PDC ? do you have to have a BDC on
each
> VLAN?
>
> Thanks in advance.
>
>
>
> _
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Traffic Director problem

[Shaheed, Manzur]

Hi All,

I am running Traffic Director version 5.7 on a Windows NT server 4.0 SP4 to
monitor rmon stats in catalyst switches (46 of them). I have two problems:

1) When I tried to install shared property file in one on the Catalyst 5000
switch I got the following message:

--
Install aborted:
Creating alarm for agent 3/23, Domain: RMON, Var: 1.3.6.1.2.1.16.1.1.1.8.
Entry or Group not present  in Agent: NTSC-5000.
--

The line card in module 3 is WSX5224 (24 port 10/100 Autosense). NTSC-5000
is the switch name. The switch is running 4.5(4) (that is the standard for
the organisation) and has Supervisor module II (WSX5506 - 100BaseFx, MMF).
RMON is enabled in the switch and CDP is enable in each port.

Obviously, no data is logged. I have another 20 Catalyst 5000 switches and
none of them are giving this problem. The only difference in this switch is
it has a WSX5012 (48 port 10 Half) line card.

2) When I add a Catalyst 5509 switch as an switch agent, I don't see any
ports even though the test passes. Clicking on Learn does no avail. I have 3
other Cat 5509 without any problem. The switch is running 4.5(4), Supervisor
module II (WSX5509 - 100BaseTx, MII), RMON and CDP enabled. Line cards are 7
WSX5225r (24 port 10/100 Auto ISL enabled).

I appreciate any suggestion/comments/solution.

Manzur Shaheed
CCNA, 3/4 CCNP (1 exam left)
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Re: VLAN's

[Ejay Hire]

No, You only need one PDC, the systems can log on to the network acfross a 
router hop if they have lmhosts files.  Alternately, you can use a 802.10 
Capable Nic, and connect your PDC to a trunk port.  Then you can give the 
PDc an iP in every VLAN/Subnet.

"Cisco Ios Switching Services" and the Sybex CCNA 2.0 book are pretty good 
on the Mechanics and How-to on VLAN's.  "Top Down Network Design" and the 
Cisco Documentation's "Designing Cisco Networks" are very good on the "what" 
and "why"

Good Luck.
-Ejay

Original Message Follows
From: "Asad Jafari" <[EMAIL PROTECTED]>
Reply-To: "Asad Jafari" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Subject: VLAN's
Date: Tue, 17 Oct 2000 13:05:08 -0700

Hello All,

I have some questions about VLAN. Can someone send me a good resource for 
VLAN (Books, articles, etc...)
Can you have all VLAN's use the same PDC ? do you have to have a BDC on each 
VLAN?

Thanks in advance.



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Re: Can't Ping Serial Interface!

[Brian W.]

Altho I have done it on a 2500 and not a 2600, dont you need a frame relay
map ip line in there.  relying on the router to autoconfig dlcis is
painfully slower..

Bri

On Tue, 17 Oct 2000, Claussen, Ken wrote:

> I am trying to setup a Frame Relay link in a lab situation. We have Layer 2
> speaking LMI back and forth and the line Protocol is reported as Up on the
> serial interface. We assigned it a Private address and created a static
> route pointing at the serial interface of the other router. When you do a
> Show ip route it reports that all the routes exist as I believe they should
> (See config to follow) The Problem is we can't ping the IP address of the
> local serial interface 192.168.4.1, and I can't seem to figure out why. I
> beleive if I could ping the local serial interface then traffic would pass
> from our development network to our test network on 192.168.3.1. Please
> review my config on the 2610 and help me figure out why I can't ping the
> local interface before I use this router as a frisbee (which would be a
> shame considering it is a 2610)
> Begin Config
> Current configuration:
> 
> !
> 
> version 12.0
> 
> service timestamps debug uptime
> 
> service timestamps log uptime
> 
> no service password-encryption
> 
> !
> 
> hostname cisco2600
> 
> !
> 
> enable password cisco
> 
> !
> 
> ip subnet-zero
> 
> !
> 
> !
> 
> !
> 
> !
> 
> !
> 
> interface Ethernet0/0
> 
> ip address 192.168.1.3 255.255.255.0
> 
> no ip directed-broadcast
> 
> !
> 
> interface Serial0/0
> 
> ip address 192.168.4.1 255.255.255.0
> 
> no ip directed-broadcast
> 
> encapsulation frame-relay IETF
> 
> no ip mroute-cache
> 
> frame-relay interface-dlci 101
> 
> !
> 
> ip classless
> 
> ip route 0.0.0.0 0.0.0.0 192.168.1.1
> 
> ip route 192.168.3.0 255.255.255.0 192.168.4.2
> 
> no ip http server
> 
> !
> 
> dialer-list 1 protocol ip permit
> 
> dialer-list 1 protocol ipx permit
> 
> snmp-server engineID local 0009023094104240
> 
> snmp-server community public RO
> 
> !
> 
> line con 0
> 
> exec-timeout 0 0
> 
> password cisco
> 
> transport input none
> 
> line aux 0
> 
> line vty 0 4
> 
> password cisco
> 
> login
> 
> !
> 
> no scheduler allocate
> 
> end
> 
> cisco2600#
> 
> End Config
> 
> Please help to save my sanity! all responses are greatly appreciated!
> 
>  
> 
> Ken Claussen MCSE CCA CCNA 
> [EMAIL PROTECTED] 
> "The mind is a terrible thing to waste!" 
> 
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Ricardo Ciganda
> Sent: Tuesday, October 17, 2000 5:00 AM
> To: [EMAIL PROTECTED]
> Subject: COLT tests
> 
> 
> 
> Hi all! 
> 
> I would like to know what is the finality of the COLT tests. May I have to
> paid for this or is only a simulation of a test?
> 
> Thanks in advance. 
> 
> Ricardo Ciganda 
> Dpto. de Sistemas 
> Bytemaster Servicios Informaticos S.A. 
> 
> 

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Re: Token ring and duplex

[Ejay Hire]

Full-Duplex/Half-Duplex settings do not apply in a Token ring environment.

Duplex settings deterrmine whether or not a system can recieve and transmit 
at the smae time in a CSMA/_C_ollision _D_etect (Ethernet) environment.  
Token Ring Does not use CSMA/CD, but use token-passing instead.

On a Token Ring network, only one system transmits at a time, all of the 
others listen.


Original Message Follows
From: "SH Wesson" <[EMAIL PROTECTED]>
Reply-To: "SH Wesson" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Token ring and duplex
Date: Tue, 17 Oct 2000 18:07:16 GMT

If a token ring is running at a speed of 16, should the duplex be full or
half.  If it's at half, what may be some problems as a result of it.
thanks.
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RE: NAT twice, will this work?

[Michael Le]

This should work fine as long as it's all static
translation, since you're coming from nat outside
interface. If you arp from inside the DMZ, only the
firewall should respond since the ARP will be for a
destination of 172.24.100.101. NAT will respond to
ARPs on it's nat ouside interface. The router on the
other is translating a source from 172.24.100.101, so
shouldn't care about an ARP to that address.

Mike

--- Jason Jin <[EMAIL PROTECTED]> wrote:
> 
> I have a situtation that I need to NAT twice, once
> on router, 
> and then again on firewall-1.  I can't figure out
> wheather this 
> will ever work , here 's the our network diagram:
> 
> 
>  WAN   DMZINTERNAL 
> -| Router ||Firwall-1|--|HostA|--
>  
> we are assigned address space 32.x.x.192-32.x.x.207 
> from out ISP( WAN), since our  DMZ is using
> 172.24.100.0/24
> the router is doing static NAT to this range.  our
> internal network
> is 10.10.1.0/24. 
> 
> 
> The IP address as folowes: 
>   
>   Router   = interface on DMZ 172.24.100.3 ( NATed)
>   Firewall-1: interface (qfe0)  on DMZ  
> 172.24.100.2
>   interface (qfe1)  on internal 10.10.1.2
>   
> HostA:  since I need to access host A from WAN side,
> 
>   hostA  need to be NAT'ed at two place ,
>   at firewall-1 it NAT from 10.10.1.101 to
> 172.24.100.101
>   at Router it is NAT from 32.x.y.101 to
> 172.24.100.101.
>   
> I have setup the firewall rules , route and arp
> entry on firewall-1 
> for HostA, and address translation work fine for
> hostA, if 
> I connect from DMZ. 
> 
> Now here's my problem: if I want connnect from hostB
> from wan
> side, the packet destined for 32.x.y.101 , the
> destination 
> first NATed to 172.24.100.101 , then pickup by
> firwall-1
> who's listen for arp request, NATed to 10.10.1.101 ?
> 
> will this work? 
> 
> one question : when somebody the DMZ sent out a arp
> request 
> for 172.24.100.101, the firwall-1 will respond , but
>  will router 
> respond too, since it is doing NAT for this address
> as well?
> any help is much appreciated.
> 
> 
> TIA,
> 
> Jason 
> 
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Re: dlsw?

[Ejay Hire]

Data Link Switching.  The router recieves a layer two session, pretends* to 
be the destination and sends the appropriate ack's back to the sender.  Then 
it encapsulates the traffic in IP and zips it off to it's true destination.  
When it reaches the destination router, the destination router pretends to 
be the original layer 2 sender and sends the traffic to the destination 
host.  To the sender and reciever they appear to be on the same network 
segment, but the special functions of DLSW get rid of all the bad things 
that happen when you send SNA traffic over links with unpredictable delay.

*Pretending is my unofficial name for a Layer 2 function where the router 
transmits the a MAC address that's not its' own as the source MAC address.

Original Message Follows
From: "Mondo" <[EMAIL PROTECTED]>
Reply-To: "Mondo" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: dlsw?
Date: Tue, 17 Oct 2000 07:06:41 -0700

Hi all,"
Could someone tell me what DLSW is and what it means? I hear it's an old
routing protocol ""data link switching "or "digital line switching "but it's
not confirmed. I can't find anything about it in my books. Could someone
clarify this for me please?
Thanks,
Mondo


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Re: Connecting T1 controller BACK TO BACK

[Ejay Hire]

IIRC, You can use a rollover cable or make your own with pins 1,2 and 7,8 
reversed.


Original Message Follows
From: "thangs" <[EMAIL PROTECTED]>
Reply-To: "thangs" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Subject: Connecting T1 controller BACK TO BACK
Date: Tue, 17 Oct 2000 12:10:16 -0500

Can you tell me how to connect the T1 controller back to back (What cabling  
type is used ?) on Cisco MC3810 ,I want to simulate a back to back VoATM.

Regards
   Thangavel

HCL TECHNOLOGIES LTD
CHENNAI,INDIA

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RE: Can't Ping Serial Interface!

[Daniel Cotts]

Well you could pitch it in my direction. 
1) In Frame Relay you can't ping your local interface unless you explicitly
map it.
2) Can you ping the far end 192.168.4.2? Look at the routing tables on each
router. From the far end can you ping 192.168.4.1? Do you have a route on
the far end router back to 192.168.1.0 on the 2610? 
-Original Message-
From: Claussen, Ken [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 17, 2000 4:09 PM
To: '[EMAIL PROTECTED]'
Subject: Can't Ping Serial Interface!


I am trying to setup a Frame Relay link in a lab situation. We have Layer 2
speaking LMI back and forth and the line Protocol is reported as Up on the
serial interface. We assigned it a Private address and created a static
route pointing at the serial interface of the other router. When you do a
Show ip route it reports that all the routes exist as I believe they should
(See config to follow) The Problem is we can't ping the IP address of the
local serial interface 192.168.4.1, and I can't seem to figure out why. I
beleive if I could ping the local serial interface then traffic would pass
from our development network to our test network on 192.168.3.1. Please
review my config on the 2610 and help me figure out why I can't ping the
local interface before I use this router as a frisbee (which would be a
shame considering it is a 2610)
Begin Config
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname cisco2600
!
enable password cisco
!
ip subnet-zero
!
!
!
!
!
interface Ethernet0/0
ip address 192.168.1.3 255.255.255.0
no ip directed-broadcast
!
interface Serial0/0
ip address 192.168.4.1 255.255.255.0
no ip directed-broadcast
encapsulation frame-relay IETF
no ip mroute-cache
frame-relay interface-dlci 101
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.1.1
ip route 192.168.3.0 255.255.255.0 192.168.4.2
no ip http server
!
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
snmp-server engineID local 0009023094104240
snmp-server community public RO
!
line con 0
exec-timeout 0 0
password cisco
transport input none
line aux 0
line vty 0 4
password cisco
login
!
no scheduler allocate
end
cisco2600#
End Config
Please help to save my sanity! all responses are greatly appreciated!

Ken Claussen MCSE CCA CCNA 
[EMAIL PROTECTED] 
"The mind is a terrible thing to waste!" 

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Re: COLT tests

[Ejay Hire]

Thank God its not just me.  I took 2 of the Colts as a pre-assesment for 
taking BCSN, and thought I had no chance of ever passing the real thing and 
should learn to change tires instead!!  I feel a lot better knowing that 
they really are as awful as I thought they were.

Whew!
-Ejay


Original Message Follows
From: "Lance Hubbard" <[EMAIL PROTECTED]>
Reply-To: "Lance Hubbard" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Re: COLT tests
Date: Tue, 17 Oct 2000 06:27:34 PDT

I think I have to agree.

I took the CCDA COLT test yesterday, and to my dismay, despite using the
book for occational referance I missed 12 out of 52.  The questions I missed
were many of the questions I looked up in the book (DCN Cisco Press).  The
test contradicts the book often, and several times questions have multiple
correct answers, not in which there is a "best answer" but there are
literaly several 100% correct answers for each question, and you are allowed
to pick just one.  It did open my eyes to some problem areas for me, but
this is not a route I would go for legitimate readiness evaluation.

Cheers,

Lance


>From: "michael champion" <[EMAIL PROTECTED]>
>Reply-To: "michael champion" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Re: COLT tests
>Date: Tue, 17 Oct 2000 07:43:56 -0500
>
>COLT testsMy opinion of them is that they only confuse the issue. I counted
>over 15 questions on the CIT-Pre exam that either had no correct answers
>listed or had wrong answers; I even took the test OPEN-BOOK to try to get
>through it. There is a very good reason that these questions are not on the
>real exam (badly-worded questions, no correct choices, nebulous questions,
>badly-worded answers, questions so detailed and obscure that they require a
>Cisco white paper or field notice to answer, etc.), and no one has made any
>attempt to improve them. What is amazing about some of them is that they
>are direct mis-quotes from some of the Cisco-Press books, and some were
>paraphrased incorrectly and unintentionally changed the meaning. It is my
>belief that these questions were not written by Cisco but rather some hired
>third-party who didn't understand the material they were asking about
>(let's hope that this is the case, or else they are a real embarrassment to
>Cisco!). I had to inform Cisco that the CIT-8/28 exam wasn't even showing
>the gifs (they have since fixed that at least). Don't use this resourse to
>make a decision on whether you are ready for the real exam, just use it as
>a reference to make sure that you have covered the material. The real exam
>has a few nebulous questions, but not to the extent that the assessment
>exams do.
>
>Regards,
>MLC
>   "Lonnie Paschall" <[EMAIL PROTECTED]> wrote in message
>8shead$gfk$[EMAIL PROTECTED]">news:8shead$gfk$[EMAIL PROTECTED]...
>   They are practice beta exams that are avaialable to cco login users. No
>charge, excellent rescource!
> "Ricardo Ciganda" <[EMAIL PROTECTED]> wrote in message
>C3CBB71D56E4D3119C9C00902727B15C1A21B9@bmnt01">news:C3CBB71D56E4D3119C9C00902727B15C1A21B9@bmnt01...
> Hi all!
>
> I would like to know what is the finality of the COLT tests. May I
>have to paid for this or is only a simulation of a test?
>
> Thanks in advance.
>
> Ricardo Ciganda
> Dpto. de Sistemas
> Bytemaster Servicios Informaticos S.A.
>

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Re: Can't Ping Serial Interface!

[John Dill]

Dear Ken,

Your setup is probably working normally.  It's not generally possible to ping a local 
frame relay interface because the router fails to map the Layer 3 address to a Layer 2 
dlci address.  You can view the failed encapsulation with the "debug ip packet" 
command.

You might try one of the following:  

1)  Under your serial interface, enter a frame map statement to the LOCAL dlci number.
Or,
2)  Try a point to point subinterface.

Good luck,

John

>>> "Claussen, Ken" <[EMAIL PROTECTED]> 10/17/00 02:08PM >>>
I am trying to setup a Frame Relay link in a lab situation. We have Layer 2
speaking LMI back and forth and the line Protocol is reported as Up on the
serial interface. We assigned it a Private address and created a static
route pointing at the serial interface of the other router. When you do a
Show ip route it reports that all the routes exist as I believe they should
(See config to follow) The Problem is we can't ping the IP address of the
local serial interface 192.168.4.1, and I can't seem to figure out why. I
beleive if I could ping the local serial interface then traffic would pass
from our development network to our test network on 192.168.3.1. Please
review my config on the 2610 and help me figure out why I can't ping the
local interface before I use this router as a frisbee (which would be a
shame considering it is a 2610)
Begin Config
Current configuration:

!

version 12.0

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

!

hostname cisco2600

!

enable password cisco

!

ip subnet-zero

!

!

!

!

!

interface Ethernet0/0

ip address 192.168.1.3 255.255.255.0

no ip directed-broadcast

!

interface Serial0/0

ip address 192.168.4.1 255.255.255.0

no ip directed-broadcast

encapsulation frame-relay IETF

no ip mroute-cache

frame-relay interface-dlci 101

!

ip classless

ip route 0.0.0.0 0.0.0.0 192.168.1.1

ip route 192.168.3.0 255.255.255.0 192.168.4.2

no ip http server

!

dialer-list 1 protocol ip permit

dialer-list 1 protocol ipx permit

snmp-server engineID local 0009023094104240

snmp-server community public RO

!

line con 0

exec-timeout 0 0

password cisco

transport input none

line aux 0

line vty 0 4

password cisco

login

!

no scheduler allocate

end

cisco2600#

End Config

Please help to save my sanity! all responses are greatly appreciated!

 

Ken Claussen MCSE CCA CCNA 
[EMAIL PROTECTED] 
"The mind is a terrible thing to waste!" 

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Ricardo Ciganda
Sent: Tuesday, October 17, 2000 5:00 AM
To: [EMAIL PROTECTED] 
Subject: COLT tests



Hi all! 

I would like to know what is the finality of the COLT tests. May I have to
paid for this or is only a simulation of a test?

Thanks in advance. 

Ricardo Ciganda 
Dpto. de Sistemas 
Bytemaster Servicios Informaticos S.A. 


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Re: BSCN: BGP Atomic Aggregate

[Ejay Hire]

It indicates that the route has been summarized (aggregated) and that the 
AS_Path may not contain an entire list of the Transit As's.  More Info 
-->rfc 1771


Original Message Follows
From: "Jennifer Mellone" <[EMAIL PROTECTED]>
Reply-To: "Jennifer Mellone" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Subject: BSCN: BGP Atomic Aggregate
Date: Tue, 17 Oct 2000 09:12:51 -0700

Does anyone know an easy definition of what the atomic aggregate is and what
it does?  I do know it is set by default unless the "as-set" command is
used.

- Jennifer

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Can't Ping Local Serial Interface of 2610

[Claussen, Ken]

I am trying to setup a Frame Relay link in a lab situation. We have Layer 2
speaking LMI back and forth and the line Protocol is reported as Up on the
serial interface. We assigned it a Private address and created a static
route pointing at the serial interface of the other router. When you do a
Show ip route it reports that all the routes exist as I believe they should
(See config to follow) The Problem is we can't ping the IP address of the
local serial interface 192.168.4.1, and I can't seem to figure out why. I
beleive if I could ping the local serial interface then traffic would pass
from our development network to our test network on 192.168.3.1. Please
review my config on the 2610 and help me figure out why I can't ping the
local interface before I use this router as a frisbee (which would be a
shame considering it is a 2610) 
Begin Config 
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname cisco2600
!
enable password cisco
!
ip subnet-zero
!
!
!
!
!
interface Ethernet0/0
ip address 192.168.1.3 255.255.255.0
no ip directed-broadcast
!
interface Serial0/0
ip address 192.168.4.1 255.255.255.0
no ip directed-broadcast
encapsulation frame-relay IETF
no ip mroute-cache
frame-relay interface-dlci 101
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.1.1
ip route 192.168.3.0 255.255.255.0 192.168.4.2
no ip http server
!
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
snmp-server engineID local 0009023094104240
snmp-server community public RO
!
line con 0
exec-timeout 0 0
password cisco
transport input none
line aux 0
line vty 0 4
password cisco
login
!
no scheduler allocate
end
cisco2600#
End Config
Please help to save my sanity! all responses are greatly appreciated!


Ken Claussen MCSE CCNA CCA

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Re: "Window" field - TCP packet

[Priscilla Oppenheimer]

Nice answer, Dale.

Do you think he was literally asking for a utility that would show the 
window size as a station was transmitting? That would be quite useful 
actually...

EtherPeek from www.WildPackets.com (used to be AG Group) lets you capture 
and display packets at the same time. So you could filter on your station 
and its partner and track windows that way. You could see the receive 
window rather easily, since it's size is advertised on every segment. The 
send window would be harder, requiring an analysis of sequence numbers and 
the other side's receive window.

But I can't think of a utility that graphically shows send and receive 
windows for a transmitter. That would be really cool, wouldn't it?

Priscilla


At 03:55 PM 10/17/00, Dale Holmes wrote:
>Each station in a TCP conversation will advertise a window which 
>represents the amount of buffer space that the station has available for 
>this conversation. The window size of a packet is the buffer available for 
>the station that is sending the packet, indicating to the recipient how 
>much data to send.
>
>It is called a "sliding window" because it is variable and will change 
>throughout the course of the conversation.
>
>For more detail on this, I would look at Douglas Comer's "Internetworking 
>with TCP/IP" volume I.
>
>I have not seen a utility that will display the window size during the 
>transmission of the packet. A sniffer will display all of the packet 
>fields, but only after you have captured the transfer and opted to display 
>it (but of course you knew that already)...
>
>Dale
>[=`)
>
>
>>From: "Billy Monroe" <[EMAIL PROTECTED]>
>>Reply-To: "Billy Monroe" <[EMAIL PROTECTED]>
>>To: [EMAIL PROTECTED]
>>Subject: "Window" field - TCP packet
>>Date: Tue, 17 Oct 2000 12:05:12 -0700
>>
>>Hello:
>>
>>Is there any way to see the size of the (sliding) window when transmiting a
>>TCP packet ?
>>
>>I saw a "Window" field using a sniffer and the number was big 28765...
>>Please correct me if I am wrong: I believe that is the buffer of the
>>receiving station.
>>
>>Thanks,
>>
>>Ronaldo
>>
>>
>>
>>_
>>FAQ, list archives, and subscription info: 
>>http://www.groupstudy.com/list/cisco.html
>>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
>_
>Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
>
>Share information about yourself, create your own public profile at 
>http://profiles.msn.com.
>
>_
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>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]




Priscilla Oppenheimer
http://www.priscilla.com

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BCMSN fill in the blank questions?

[Timothy W. Roberts]

Does this test have a exhibit box that has choices or is straight from
memory?

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Can't Ping Serial Interface!

[Claussen, Ken]

Title: COLT tests



I am 
trying to setup a Frame Relay link in a lab situation. We have Layer 2 speaking 
LMI back and forth and the line Protocol is reported as Up on the serial 
interface. We assigned it a Private address and created a static route pointing 
at the serial interface of the other router. When you do a Show ip route it 
reports that all the routes exist as I believe they should (See config to 
follow) The Problem is we can't ping the IP address of the local serial 
interface 192.168.4.1, and I can't seem to figure out why. I beleive if I could 
ping the local serial interface then traffic would pass from our development 
network to our test network on 192.168.3.1. Please review my config on the 2610 
and help me figure out why I can't ping the local interface before I use this 
router as a frisbee (which would be a shame considering it is a 
2610)
Begin 
Config

Current configuration:
!
version 12.0
service timestamps debug 
uptime
service timestamps log 
uptime
no service 
password-encryption
!
hostname cisco2600
!
enable password cisco
!
ip subnet-zero
!
!
!
!
!
interface Ethernet0/0
ip address 192.168.1.3 
255.255.255.0
no ip directed-broadcast
!
interface Serial0/0
ip address 192.168.4.1 
255.255.255.0
no ip directed-broadcast
encapsulation frame-relay 
IETF
no ip mroute-cache
frame-relay interface-dlci 
101
!
ip classless
ip route 0.0.0.0 0.0.0.0 
192.168.1.1
ip route 192.168.3.0 255.255.255.0 
192.168.4.2
no ip http server
!
dialer-list 1 protocol ip 
permit
dialer-list 1 protocol ipx 
permit
snmp-server engineID local 
0009023094104240
snmp-server community public 
RO
!
line con 0
exec-timeout 0 0
password cisco
transport input none
line aux 0
line vty 0 4
password cisco
login
!
no scheduler allocate
end
cisco2600#
End 
Config
Please 
help to save my sanity! all responses are greatly 
appreciated!
 
Ken Claussen MCSE CCA CCNA [EMAIL PROTECTED] "The mind is a terrible thing to waste!" 

  -Original Message-From: [EMAIL PROTECTED] 
  [mailto:[EMAIL PROTECTED]]On Behalf Of Ricardo 
  CigandaSent: Tuesday, October 17, 2000 5:00 AMTo: 
  [EMAIL PROTECTED]Subject: COLT tests
  Hi all! 
  I would like to know what is the finality of the 
  COLT tests. May I have to paid for this or is only a simulation of a 
  test?
  Thanks in advance. 
  Ricardo Ciganda Dpto. de Sistemas Bytemaster 
  Servicios Informaticos S.A. 

ttcp

[Kevin Wigle]

Dear Groupstudy,

I am working in the lab on a project using ATM and Transparent Lan Services.

I am looking at the affects of SAR and I am using ttcp between two end
points to measure performance.

ttcp is an undocumented utility and fairly straight forward using the
defaults.

However I need to understand more of the report data that ttcp provides.

Can anyone provide any info on really using ttcp to it's fullest?

tia

Kevin Wigle
CCDP/CCNP..

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RE: Off Topic - Nortel Networks

[Doneit, Dieter]

I hope this
helps:http://db.globalknowledge.com/catalog/catcourse.asp?cat=7&country=

-Original Message-
From: hal9001 [mailto:[EMAIL PROTECTED]]
Sent: 17 October 2000 4:14 PM
To: [EMAIL PROTECTED]
Subject: Off Topic - Nortel Networks


Off Topic I know and apologise can anyone kindly provide any good links for
Nortel/Bay Networks  Certifications please apart from the main site?

I know there are a few books about to break cover from McGraw-Hill but its
another requirement in the pipeline from those who must be obeyed.

All contributions gratefully received!

Karl

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[Fwd: COLT tests]

[Dan Henry]

-- 
Dan Henry CCNA, CCDA
Network Engineer II
Broadwing, Inc. / ZoomTown.Com


Agreed again. I took the Routing 2.0 pre-test and was greatly dismayed
by what I found. After studying hard for some time, I couldn't even
understand what was being asked on probably 1/3 of the questions. 

Priscilla Oppenheimer wrote:
> 
> Just tried the CCDA one also. Obviously written by someone who doesn't
> really "get it." Sigh.
> 
> Priscilla
> 
> At 06:27 AM 10/17/00, Lance Hubbard wrote:
> >I think I have to agree.
> >
> >I took the CCDA COLT test yesterday, and to my dismay, despite using the
> >book for occational referance I missed 12 out of 52.  The questions I
> >missed were many of the questions I looked up in the book (DCN Cisco
> >Press).  The test contradicts the book often, and several times questions
> >have multiple correct answers, not in which there is a "best answer" but
> >there are literaly several 100% correct answers for each question, and you
> >are allowed to pick just one.  It did open my eyes to some problem areas
> >for me, but this is not a route I would go for legitimate readiness evaluation.
> >
> >Cheers,
> >
> >Lance
> >
> >
> >>From: "michael champion" <[EMAIL PROTECTED]>
> >>Reply-To: "michael champion" <[EMAIL PROTECTED]>
> >>To: [EMAIL PROTECTED]
> >>Subject: Re: COLT tests
> >>Date: Tue, 17 Oct 2000 07:43:56 -0500
> >>
> >>COLT testsMy opinion of them is that they only confuse the issue. I
> >>counted over 15 questions on the CIT-Pre exam that either had no correct
> >>answers listed or had wrong answers; I even took the test OPEN-BOOK to
> >>try to get through it. There is a very good reason that these questions
> >>are not on the real exam (badly-worded questions, no correct choices,
> >>nebulous questions, badly-worded answers, questions so detailed and
> >>obscure that they require a Cisco white paper or field notice to answer,
> >>etc.), and no one has made any attempt to improve them. What is amazing
> >>about some of them is that they are direct mis-quotes from some of the
> >>Cisco-Press books, and some were paraphrased incorrectly and
> >>unintentionally changed the meaning. It is my belief that these questions
> >>were not written by Cisco but rather some hired third-party who didn't
> >>understand the material they were asking about (let's hope that this is
> >>the case, or else they are a real embarrassment to Cisco!). I had to
> >>inform Cisco that the CIT-8/28 exam wasn't even showing the gifs (they
> >>have since fixed that at least). Don't use this resourse to make a
> >>decision on whether you are ready for the real exam, just use it as a
> >>reference to make sure that you have covered the material. The real exam
> >>has a few nebulous questions, but not to the extent that the assessment
> >>exams do.
> >>
> >>Regards,
> >>MLC
> >>   "Lonnie Paschall" <[EMAIL PROTECTED]> wrote in message
> >> 8shead$gfk$[EMAIL PROTECTED]">news:8shead$gfk$[EMAIL PROTECTED]...
> >>   They are practice beta exams that are avaialable to cco login users.
> >> No charge, excellent rescource!
> >> "Ricardo Ciganda" <[EMAIL PROTECTED]> wrote in message
> >> C3CBB71D56E4D3119C9C00902727B15C1A21B9@bmnt01">news:C3CBB71D56E4D3119C9C00902727B15C1A21B9@bmnt01...
> >> Hi all!
> >>
> >> I would like to know what is the finality of the COLT tests. May I
> >> have to paid for this or is only a simulation of a test?
> >>
> >> Thanks in advance.
> >>
> >> Ricardo Ciganda
> >> Dpto. de Sistemas
> >> Bytemaster Servicios Informaticos S.A.
> >
> >_
> >Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
> >
> >Share information about yourself, create your own public profile at
> >http://profiles.msn.com.
> >
> >_
> >FAQ, list archives, and subscription info:
> >http://www.groupstudy.com/list/cisco.html
> >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> 
> 
> 
> Priscilla Oppenheimer
> http://www.priscilla.com
> 
> _
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> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

-- 
Dan Henry CCNA, CCDA
Network Engineer II
Broadwing, Inc. / ZoomTown.Com

RE: Off Topic - Nortel Networks

[Irwin Lazar]

See: http://www.nortelnetworks.com/servsup/certification/

--
Irwin Lazar, Senior Consultant
The Burton Group - http://www.tbg.com/
e-mail: [EMAIL PROTECTED]  
phone: 703-742-9659
 
"The Ultimate Resource For Network Architects"


> -Original Message-
> From: hal9001 [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, October 17, 2000 4:14 PM
> To: [EMAIL PROTECTED]
> Subject: Off Topic - Nortel Networks
> 
> 
> Off Topic I know and apologise can anyone kindly provide any 
> good links for
> Nortel/Bay Networks  Certifications please apart from the main site?
> 
> I know there are a few books about to break cover from 
> McGraw-Hill but its
> another requirement in the pipeline from those who must be obeyed.
> 
> All contributions gratefully received!
> 
> Karl
> 
> _
> FAQ, list archives, and subscription info: 
> http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> 


 Irwin Lazar.vcf

RE: VLAN's

[Irwin Lazar]

See: 
http://www.3com.com/nsc/200374.html
 

-Original Message-From: Asad Jafari 
[mailto:[EMAIL PROTECTED]]Sent: Tuesday, October 17, 2000 4:05 
PMTo: [EMAIL PROTECTED]Subject: 
VLAN's

  Hello All,
   
  I have some questions about VLAN. Can someone 
  send me a good resource for VLAN (Books, articles, etc...)
  Can you have all VLAN's use the same PDC ? do you 
  have to have a BDC on each VLAN?
   
  Thanks in advance.
   
   

RE: NAT twice, will this work?

[Reinhold Fischer]

jason,

had used a similar setup (had to use nat three times) with cisco routers
with success. The router does proxy arp  in my case. Cannot comment about
the sun/firewall1 stuff ...

hth

Reinhold


-- 
Reinhold Fischer  [EMAIL PROTECTED]
CCNP/SunCSA/HP Certified Consultant for Network Management
On Tue, 17 Oct 2000, Jason Jin wrote:

> 
> I have a situtation that I need to NAT twice, once on router, 
> and then again on firewall-1.  I can't figure out wheather this 
> will ever work , here 's the our network diagram:
> 
> 
>  WAN   DMZINTERNAL 
> -| Router ||Firwall-1|--|HostA|--
>  
> we are assigned address space 32.x.x.192-32.x.x.207 
> >from out ISP( WAN), since our  DMZ is using 172.24.100.0/24
> the router is doing static NAT to this range.  our internal network
> is 10.10.1.0/24. 
> 
> 
> The IP address as folowes: 
>   
>   Router   = interface on DMZ 172.24.100.3 ( NATed)
>   Firewall-1: interface (qfe0)  on DMZ   172.24.100.2
>   interface (qfe1)  on internal 10.10.1.2
>   
> HostA:  since I need to access host A from WAN side, 
>   hostA  need to be NAT'ed at two place ,
>   at firewall-1 it NAT from 10.10.1.101 to 172.24.100.101
>   at Router it is NAT from 32.x.y.101 to 172.24.100.101.
>   
> I have setup the firewall rules , route and arp entry on firewall-1 
> for HostA, and address translation work fine for hostA, if 
> I connect from DMZ. 
> 
> Now here's my problem: if I want connnect from hostB from wan
> side, the packet destined for 32.x.y.101 , the destination 
> first NATed to 172.24.100.101 , then pickup by firwall-1
> who's listen for arp request, NATed to 10.10.1.101 ? 
> will this work? 
> 
> one question : when somebody the DMZ sent out a arp request 
> for 172.24.100.101, the firwall-1 will respond , but  will router 
> respond too, since it is doing NAT for this address as well?
> any help is much appreciated.
> 
> 
> TIA,
> 
> Jason 

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Off Topic - Nortel Networks

[hal9001]

Off Topic I know and apologise can anyone kindly provide any good links for
Nortel/Bay Networks  Certifications please apart from the main site?

I know there are a few books about to break cover from McGraw-Hill but its
another requirement in the pipeline from those who must be obeyed.

All contributions gratefully received!

Karl

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VLAN's

[Asad Jafari]

Hello All,
 
I have some questions about VLAN. Can someone send 
me a good resource for VLAN (Books, articles, etc...)
Can you have all VLAN's use the same PDC ? do you 
have to have a BDC on each VLAN?
 
Thanks in advance.
 
 

Re: "Window" field - TCP packet

[Priscilla Oppenheimer]

When sending a packet (segment), a station includes in the TCP header the 
current size of its receive window. In your example, the sender is saying 
that its receive window is 28765 bytes. The station is saying, "you can 
send me 28765 bytes without stopping and waiting for an acknowledgement." 
That's about 20 1500-byte packets. That's not really very big when you 
consider the low cost of memory these days. (Buffer size is based on 
available memory.)

If you study a protocol analyzer trace, you may see the receive window size 
shrink as the station's receive buffers start to fill up. Probably an 
application will come along, though, and grab the received bytes, clearing 
up space in the buffer. So the station will acknowledge some data and slide 
its window back open.

You can see evidence of the sending window also by tracking TCP sequence 
numbers. The size of the sending window is determined by the recipient's 
receive window. It's easier to just track receive windows because a station 
explicitly specifies the number of bytes in its receive window on every 
packet it sends.

Priscilla

At 12:05 PM 10/17/00, Billy Monroe wrote:
>Hello:
>
>Is there any way to see the size of the (sliding) window when transmiting a
>TCP packet ?
>
>I saw a "Window" field using a sniffer and the number was big 28765...
>Please correct me if I am wrong: I believe that is the buffer of the
>receiving station.
>
>Thanks,
>
>Ronaldo
>
>
>
>_
>FAQ, list archives, and subscription info: 
>http://www.groupstudy.com/list/cisco.html
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Priscilla Oppenheimer
http://www.priscilla.com

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Re: Token ring and duplex

[Reinhold Fischer]

i think it has nothing to do with the ring speed. To use fullduplex the 
routerport (i hope you are referring to a router port) has to be connected
to a tokenring switch. no clue if it could work too in a ring with only 
two stations. lets see what others say ...

hth

Reinhold

-- 
Reinhold Fischer  [EMAIL PROTECTED]
CCNP/SunCSA/HP Certified Consultant for Network Management


On Tue, 17 Oct 2000, SH Wesson wrote:

> If a token ring is running at a speed of 16, should the duplex be full or 
> half.  If it's at half, what may be some problems as a result of it.  
> thanks.

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Fwd: Re: Configuration Reference - I hope this helped

[L Reid]

 
  Note: forwarded message attached. = = = = = = = = = = = = = = = = = =[EMAIL PROTECTED]= = = = = = = = = = = = = = = = = =Do You Yahoo!?
Yahoo! Messenger - Talk while you surf!  It's FREE.

http://www.amazon.com/exec/obidos/ASIN/0071351086/o/qid=971801868/sr=2-1/104-4639001-3587155
  
  SV <[EMAIL PROTECTED]> wrote: 




Guys
 
I tried looking up Amazon for McCalls for this book. Didnt find it.   :-(
Could you send me a complete name or more details. 
 
Thanks
 
SV

- Original Message - 
From: L Reid 
To: Alldread AK2 Robert J ; Cisco@Groupstudy. Com (E-mail) 
Sent: Tuesday, October 17, 2000 11:37 AM
Subject: Re: Configuration Reference
I think that McCalls has a book named CCIE Labs $70.00 or so.  Check Amazon.com

  Alldread AK2 Robert J <[EMAIL PROTECTED]> wrote: 
I was just wondering if anyone has seen a book that has step-by-stepexamples of how to configure access-lists, NAT, frame-relay, and just abouteverything else. I had 14 Cisco press books that tell me all this, but Iwas looking for one book that has nothing but configurations examples. Any ideas would be great!thanks,skin-e_FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.htmlReport misconduct and Nondisclosure violations to [EMAIL PROTECTED]= = = = = = = = = = = = = = = = = =[EMAIL PROTECTED]= = = = = = = = = = = = = = = = = = 


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Re: "Window" field - TCP packet

[Dale Holmes]

Each station in a TCP conversation will advertise a window which represents 
the amount of buffer space that the station has available for this 
conversation. The window size of a packet is the buffer available for the 
station that is sending the packet, indicating to the recipient how much 
data to send.

It is called a "sliding window" because it is variable and will change 
throughout the course of the conversation.

For more detail on this, I would look at Douglas Comer's "Internetworking 
with TCP/IP" volume I.

I have not seen a utility that will display the window size during the 
transmission of the packet. A sniffer will display all of the packet fields, 
but only after you have captured the transfer and opted to display it (but 
of course you knew that already)...

Dale
[=`)


>From: "Billy Monroe" <[EMAIL PROTECTED]>
>Reply-To: "Billy Monroe" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: "Window" field - TCP packet
>Date: Tue, 17 Oct 2000 12:05:12 -0700
>
>Hello:
>
>Is there any way to see the size of the (sliding) window when transmiting a
>TCP packet ?
>
>I saw a "Window" field using a sniffer and the number was big 28765...
>Please correct me if I am wrong: I believe that is the buffer of the
>receiving station.
>
>Thanks,
>
>Ronaldo
>
>
>
>_
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Re: Vlans over Links

[michael champion]

First things first. Just because an interface is Fast Ethernet does not mean
that the switch or router will support ISL. (In fact, the 4000 series of
switches do not support ISL). ISL is a Cisco-proprietary method of frame
tagging for VLAN's; the industry standard is IEEE 802.1Q. Cisco 802.10 is
used by Cisco for VLAN frame tagging over FDDI.


If you are using only one VLAN and not connecting to anything else that is
not in the VLAN's broadcast domain then you don't need a router. However,
since you are using a firewall it is doubtful this is what you are trying to
do. The router may or may not support ISL, depending on the interfaces and
the IOS software version.

"Donald B Johnson Jr" <[EMAIL PROTECTED]> wrote in message
023e01c03874$8862c4f0$[EMAIL PROTECTED]">news:023e01c03874$8862c4f0$[EMAIL PROTECTED]...
> If you just have one vlan I don't think you need a router
> Duck
> - Original Message -
> From: Andrew Twigger <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, October 17, 2000 7:03 AM
> Subject: Vlans over Links
>
>
> > Hi Group
> >
> > I wonder if any body can answer this or point me in the right direction
> for
> > me.
> >
> > I am looking at VLANs and what can be done with them.
> >
> > I know I can use ISL to link two switches together with even a router in
> the
> > middle and have a vlan running from switch to switch. I am also sure
that
> I
> > can use 802.10 to do the same. Also if my understanding is correct you
can
> > only use ISL when all interfaces are fast Ethernet?
> >
> > Question then, can you set up a Vlan between two switches but in between
> the
> > switches is not just a router but a PIX as well, so you  have :-
> >
> > Switch1(VLAN10) - - - -  Router - - -  - PIX - - - - - Router - - - - -
> > Switch (VLAN10)
> >
> > Is this possible? if so do you use ISL or 802.10?
> >
> > Thank in advance.
> >
> > Andrew
> >
> > Andrew S. Twigger MCP, Network+, CCNA
> > Snr Systems Engineer
> > Technical Service's
> > DIALnet PLC
> > e : [EMAIL PROTECTED]
> > t : 0121 624 5050
> > m : 07967 470 964
> >
> >
> > _
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
> _
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>


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"Window" field - TCP packet

[Billy Monroe]

Hello:

Is there any way to see the size of the (sliding) window when transmiting a
TCP packet ?

I saw a "Window" field using a sniffer and the number was big 28765...
Please correct me if I am wrong: I believe that is the buffer of the
receiving station.

Thanks,

Ronaldo



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Token ring and duplex

[SH Wesson]

If a token ring is running at a speed of 16, should the duplex be full or 
half.  If it's at half, what may be some problems as a result of it.  
thanks.
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RE: BGP - Internet Routing Architectures, Second Edition

[Dorroh, Hunter]

I would have to agree.  I recently started reading it and I am on about
Chapter 6 and it is fantastic!  The first few chapters cover basic things
like the Internet, CDIR, VLSM and other basics but then it delves highly
into massive BGP.

Hope this helps,

Hunter

-Original Message-
From: Brian Lodwick [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 17, 2000 2:19 PM
To: [EMAIL PROTECTED]
Subject: RE: BGP - Internet Routing Architectures, Second Edition


-  I am looking towards moving to another department within the company I 
work for and they get REAL up close and personal with BGP. They also praise 
Halabi's book. They say I should buy this book and memorize the whole thing 
and life will be alot better. This is aparently, as Priscilla says, THE book

on BGP.

>>>Brian


>From: Priscilla Oppenheimer <[EMAIL PROTECTED]>
>Reply-To: Priscilla Oppenheimer <[EMAIL PROTECTED]>
>To: Jean-Michel Roberts <[EMAIL PROTECTED]>,
>"'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
>Subject: RE: BGP - Internet Routing Architectures, Second Edition
>Date: Tue, 17 Oct 2000 10:41:13 -0700
>
>Good day,
>
>A second edition implies that the book is more up-to-date. It probably
>doesn't include many new topics, though. Halabi's second edition of
>"Internet Routing Architectures" is out and it's similar to his first
>edition, (in other words, very good). He got help from Danny McPherson on
>the second edition, and I think that made the book even more readable. It
>is THE book for learning BGP, a very important topic for BSCN.
>
>Jeff Doyle, on the other hand, is working on Volume II of his "Routing
>TCP/IP." That's different than a second edition. A second volume means new
>material, new topics. In particular, his Volume II is going to include BGP.
>Volume I did not include BGP. On the other hand, Volume I of "Routing
>TCP/IP" is THE book for learning every other major IP routing protocol,
>especially OSPF.
>
>So, for now, I would recommend Volume I of Jeff Doyle's "Routing TCP/IP"
>and the 2nd edition of Halabi's "Internet Routing Architectures." Volume II
>of "Routing TCP/IP" isn't due out until March. By then you will have
>memorized Halabi's book and become a CCIE! ;-)
>
>Priscilla
>
>At 11:15 AM 10/17/00, Jean-Michel Roberts wrote:
>>Good day,
>>
>>What is the difference between the Internet Routing Architectures book by
>>Basam Halabi 1st edition and 2nd edition? Is it just a more up to date
>>version?
>>
>>Which would you recommend to prepare for the BSCN exam and other exams in
>>the CCNP/CCIE track?
>>
>>The book: Routing TCP/IP by Doyle also has two editions. Dou you have any
>>comments, i.e. which shall I get... the second edition only comes out 
>>early
>>next year? Is it also a more up to date version or is the 1st version
>>sufficient? (I also don't want to wait until next year)
>>
>>Thanks in advance.
>>
>>Kind Regards,
>>
>>Jean-Michel
>>---
>>Jean-Michel Roberts  (MCSE) (MCP+Internet) (CCNA)
>>System Administrator
>>Cell: +27 82 71 22 555
>>Email: [EMAIL PROTECTED]
>>
>>_
>>FAQ, list archives, and subscription info:
>>http://www.groupstudy.com/list/cisco.html
>>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
>
>
>
>Priscilla Oppenheimer
>http://www.priscilla.com
>
>_
>FAQ, list archives, and subscription info: 
>http://www.groupstudy.com/list/cisco.html
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Re: IP Subnetting Question

[michael champion]

You must have been using that god-awful 
CiscoPress ACRC book. You are absolutely correct, and the book is absolutely 
wrong. The sad part is that these kind of mistakes are rampant in CiscoPress 
books, and they make you begin to doubt whether you understand the concept. It 
is simple. /n is the number of contiguous 1 bits in the subnet mask, 
period.
 
Regards,
MLC

  "Robert Cabeca" <[EMAIL PROTECTED]> wrote in 
  message 008001c0385b$a973eca0$[EMAIL PROTECTED]">news:008001c0385b$a973eca0$[EMAIL PROTECTED]...
  I am not understanding the concept of using an IP address followed by /n. 
  Example 10.20.193.20 /28. The way I am looking at it I get a Subnet mask of 
  255.255.255.240. But I am being told that it is really a mask of 
  255.255.240.0, however I am not being given an explanation. I thought that 
  255.255.240.0 has a /20. but it is a /12 instead? Any enlightenment would be 
  appreciated. 
   
  peace 
  Rob
   

Re: This is a test please reply

[Stephane Wantou Siantou]

On Tue, 17 Oct 2000, Kevin O'Gilvie wrote:

> 
> This is a test please reply
> 
> _
> FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
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RE: IP Subnetting Question

[Vijay Ramcharan]

http://www.cisco.com/warp/public/701/3.html 

 
This is a 
pretty good link for brushing up on IP addressing 
and subnetting.  Lot of examples for the 
beginner.
 
Vijay Ramcharan CCNP, CCDP, MCSE 

  -Original Message-From: Marshal Schoener 
  [mailto:[EMAIL PROTECTED]]Sent: Tuesday, October 17, 2000 
  1:29 PMTo: 'Robert Cabeca'; cisco group studySubject: 
  RE: IP Subnetting Question
  /28 
  = 255.255.255.240   
  You 
  are correct!!!
   
  the 
  /28 just means a 28 bit mask...  that is .240   
  :--)
  
-Original Message-From: Robert Cabeca 
[mailto:[EMAIL PROTECTED]]Sent: Tuesday, October 17, 2000 
10:00 AMTo: cisco group studySubject: IP Subnetting 
Question
I am not understanding the concept of using an IP address followed by 
/n. Example 10.20.193.20 /28. The way I am looking at it I get a Subnet mask 
of 255.255.255.240. But I am being told that it is really a mask of 
255.255.240.0, however I am not being given an explanation. I thought that 
255.255.240.0 has a /20. but it is a /12 instead? Any enlightenment would be 
appreciated. 
 
peace 
Rob
 

RE: BGP - Internet Routing Architectures, Second Edition

[Brian Lodwick]

-  I am looking towards moving to another department within the company I 
work for and they get REAL up close and personal with BGP. They also praise 
Halabi's book. They say I should buy this book and memorize the whole thing 
and life will be alot better. This is aparently, as Priscilla says, THE book 
on BGP.

>>>Brian


>From: Priscilla Oppenheimer <[EMAIL PROTECTED]>
>Reply-To: Priscilla Oppenheimer <[EMAIL PROTECTED]>
>To: Jean-Michel Roberts <[EMAIL PROTECTED]>,
>"'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
>Subject: RE: BGP - Internet Routing Architectures, Second Edition
>Date: Tue, 17 Oct 2000 10:41:13 -0700
>
>Good day,
>
>A second edition implies that the book is more up-to-date. It probably
>doesn't include many new topics, though. Halabi's second edition of
>"Internet Routing Architectures" is out and it's similar to his first
>edition, (in other words, very good). He got help from Danny McPherson on
>the second edition, and I think that made the book even more readable. It
>is THE book for learning BGP, a very important topic for BSCN.
>
>Jeff Doyle, on the other hand, is working on Volume II of his "Routing
>TCP/IP." That's different than a second edition. A second volume means new
>material, new topics. In particular, his Volume II is going to include BGP.
>Volume I did not include BGP. On the other hand, Volume I of "Routing
>TCP/IP" is THE book for learning every other major IP routing protocol,
>especially OSPF.
>
>So, for now, I would recommend Volume I of Jeff Doyle's "Routing TCP/IP"
>and the 2nd edition of Halabi's "Internet Routing Architectures." Volume II
>of "Routing TCP/IP" isn't due out until March. By then you will have
>memorized Halabi's book and become a CCIE! ;-)
>
>Priscilla
>
>At 11:15 AM 10/17/00, Jean-Michel Roberts wrote:
>>Good day,
>>
>>What is the difference between the Internet Routing Architectures book by
>>Basam Halabi 1st edition and 2nd edition? Is it just a more up to date
>>version?
>>
>>Which would you recommend to prepare for the BSCN exam and other exams in
>>the CCNP/CCIE track?
>>
>>The book: Routing TCP/IP by Doyle also has two editions. Dou you have any
>>comments, i.e. which shall I get... the second edition only comes out 
>>early
>>next year? Is it also a more up to date version or is the 1st version
>>sufficient? (I also don't want to wait until next year)
>>
>>Thanks in advance.
>>
>>Kind Regards,
>>
>>Jean-Michel
>>---
>>Jean-Michel Roberts  (MCSE) (MCP+Internet) (CCNA)
>>System Administrator
>>Cell: +27 82 71 22 555
>>Email: [EMAIL PROTECTED]
>>
>>_
>>FAQ, list archives, and subscription info:
>>http://www.groupstudy.com/list/cisco.html
>>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
>
>
>
>Priscilla Oppenheimer
>http://www.priscilla.com
>
>_
>FAQ, list archives, and subscription info: 
>http://www.groupstudy.com/list/cisco.html
>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

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Re: WHIZZ KIDS WHO HAVE THE CCIE number

[j h]

True Dat!!! Its all just a game, and a very easy one.

>From: "Dale Holmes" <[EMAIL PROTECTED]>
>Reply-To: "Dale Holmes" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED], [EMAIL PROTECTED]
>Subject: Re: WHIZZ KIDS WHO HAVE THE CCIE number
>Date: Mon, 16 Oct 2000 10:29:07 EDT
>
>Except that when you are that young and also that intelligent, doing things
>like going to chucky cheese makes you want to go postal...
>
>A recent experience I had with a similarly gifted child drove the point
>home. At a birthday party at the earlier mentioned Chucky Cheese's, I saw
>this particular young girl (my neice, who is 12 years old) crying. Not
>weeping or wailing, but just one or two tears as she looked out over the
>play area.
>
>"What's wrong?" I asked her.
>
>"Look at all the sad, silly little morons!" she said.
>
>"What's wrong with them?" I asked.
>
>She looked at me and asked "Did you ever look at someone and see their 
>whole
>life - everything that's ever gonna happen to them - and you can't even 
>tell
>them because they don't believe you?"
>
>"Yes" I said, stunned...
>
>"It's sad, that's all" she said.
>
>"Wanna go to the bookstore?" I asked.
>
>"YEAH!" she said, and she was out the door like greased lightning.
>
>Smart kids need challenges and interesting diversions, not fertilizer for
>vegetation. Things that are great fun for most kids are insipid to them.
>They have an appetite for greater and greater things, and that appetite
>needs to be fed. I do the best I can as her uncle. With parts I gave her,
>she built her own Pentium PC, and installs her own software (NT 4, IE 5,
>language software, games, etc.). I am not sure what she does with the
>chemistry set I gave her, but she hasn't burned the house down yet... She
>hasn't started any Cisco certs yet, but the idea appeals to her.
>
>Kids that do go after certs aren't comsumed by them like adults are. They
>just play it like a game, and do it in between all the other stuff they do.
>It's fun for them, and they relish the challenge.
>
>PS - the book my neice decided on that day was a book of soccer plays and
>strategies - she's on the team this year and is really giving it her all...
>so being smart doesn't make here a "bookworm". She still gets out there and
>lives her life, she just needs a lttle something more than Pokemon and 
>video
>games.
>
>Dale
>[=`)
>
>>From: "NetEng" <[EMAIL PROTECTED]>
>>Reply-To: "NetEng" <[EMAIL PROTECTED]>
>>To: [EMAIL PROTECTED]
>>Subject: Re: WHIZZ KIDS WHO HAVE THE CCIE number
>>Date: Fri, 13 Oct 2000 10:41:09 -0500
>>
>>If your 12 or even 18 and trying to acheive any certification, your life
>>must suck. What happened to having a childhood? I didn't know what I 
>>wanted
>>to do until I was 20something. These kids should be forced to go to
>>ChuckyCheese eveyday for a year.
>>
>>"Kris" <[EMAIL PROTECTED]> wrote in message
>>[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
>> > I commend young kids who attempt and more importantly achieve these
>> > things.  Though at a young age I was actively involved in subjects
>>taught
>> > in most first year university comp sci courses, I must say that it 
>>pales
>> > in comparisson to a 12 year old who is working towards CCIE.  He is
>> > sponsored by Global Knowledge btw.
>> >
>> > Kris,
>> >
>> > > From: "McCallum, Robert" <[EMAIL PROTECTED]>
>> > > Subject: WHIZZ KIDS WHO HAVE THE CCIE number
>> > >
>> > > Here is a little poser for you all.  Who is / was the youngest CCIE
>>and
>> > what
>> > > was his / her age when they attained the CCIE?
>> > >
>> > > Robert McCallum
>> >
>> > _
>> > FAQ, list archives, and subscription info:
>>http://www.groupstudy.com/list/cisco.html
>> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>> >
>>
>>
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Re: COLT tests

[Priscilla Oppenheimer]

Just tried the CCDA one also. Obviously written by someone who doesn't 
really "get it." Sigh.

Priscilla


At 06:27 AM 10/17/00, Lance Hubbard wrote:
>I think I have to agree.
>
>I took the CCDA COLT test yesterday, and to my dismay, despite using the 
>book for occational referance I missed 12 out of 52.  The questions I 
>missed were many of the questions I looked up in the book (DCN Cisco 
>Press).  The test contradicts the book often, and several times questions 
>have multiple correct answers, not in which there is a "best answer" but 
>there are literaly several 100% correct answers for each question, and you 
>are allowed to pick just one.  It did open my eyes to some problem areas 
>for me, but this is not a route I would go for legitimate readiness evaluation.
>
>Cheers,
>
>Lance
>
>
>>From: "michael champion" <[EMAIL PROTECTED]>
>>Reply-To: "michael champion" <[EMAIL PROTECTED]>
>>To: [EMAIL PROTECTED]
>>Subject: Re: COLT tests
>>Date: Tue, 17 Oct 2000 07:43:56 -0500
>>
>>COLT testsMy opinion of them is that they only confuse the issue. I 
>>counted over 15 questions on the CIT-Pre exam that either had no correct 
>>answers listed or had wrong answers; I even took the test OPEN-BOOK to 
>>try to get through it. There is a very good reason that these questions 
>>are not on the real exam (badly-worded questions, no correct choices, 
>>nebulous questions, badly-worded answers, questions so detailed and 
>>obscure that they require a Cisco white paper or field notice to answer, 
>>etc.), and no one has made any attempt to improve them. What is amazing 
>>about some of them is that they are direct mis-quotes from some of the 
>>Cisco-Press books, and some were paraphrased incorrectly and 
>>unintentionally changed the meaning. It is my belief that these questions 
>>were not written by Cisco but rather some hired third-party who didn't 
>>understand the material they were asking about (let's hope that this is 
>>the case, or else they are a real embarrassment to Cisco!). I had to 
>>inform Cisco that the CIT-8/28 exam wasn't even showing the gifs (they 
>>have since fixed that at least). Don't use this resourse to make a 
>>decision on whether you are ready for the real exam, just use it as a 
>>reference to make sure that you have covered the material. The real exam 
>>has a few nebulous questions, but not to the extent that the assessment 
>>exams do.
>>
>>Regards,
>>MLC
>>   "Lonnie Paschall" <[EMAIL PROTECTED]> wrote in message 
>> 8shead$gfk$[EMAIL PROTECTED]">news:8shead$gfk$[EMAIL PROTECTED]...
>>   They are practice beta exams that are avaialable to cco login users. 
>> No charge, excellent rescource!
>> "Ricardo Ciganda" <[EMAIL PROTECTED]> wrote in message 
>> C3CBB71D56E4D3119C9C00902727B15C1A21B9@bmnt01">news:C3CBB71D56E4D3119C9C00902727B15C1A21B9@bmnt01...
>> Hi all!
>>
>> I would like to know what is the finality of the COLT tests. May I 
>> have to paid for this or is only a simulation of a test?
>>
>> Thanks in advance.
>>
>> Ricardo Ciganda
>> Dpto. de Sistemas
>> Bytemaster Servicios Informaticos S.A.
>
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Priscilla Oppenheimer
http://www.priscilla.com

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Question about show process command

[Croyle, James]

Afternoon all, when you run the show process command, one of the columns
comes up labeled QTy (small y as I have typed)  Then for each process ID,
the entry under this colum is the following

Lst -- Check heaps
Mst -- Timers
Lwe -- ARP Output
Hwe -- IP Input

I have searched the cisco webpage, and found nothing on this.  Figured out
that the first capital letter means High, Medium, or Low priority (I
believe) but would like to know the other 2 letter's relevence.

TIA

Jim Croyle

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Re: COLT tests

[Priscilla Oppenheimer]

Hear, hear. I only tried the CIT one, but I have to agree that the 
questions and answers are so garbled that they make you think you won't 
pass the test. They appear to be written by a non-English speaker (no 
offence to those of you in that category) and/or a non Cisco-speaker. I 
agree that they confuse the issue. The real tests are not worded nearly as 
badly.

Priscilla


At 07:43 AM 10/17/00, michael champion wrote:
>My opinion of them is that they only confuse the issue. I counted over 15 
>questions on the CIT-Pre exam that either had no correct answers listed or 
>had wrong answers; I even took the test OPEN-BOOK to try to get through 
>it. There is a very good reason that these questions are not on the real 
>exam (badly-worded questions, no correct choices, nebulous questions, 
>badly-worded answers, questions so detailed and obscure that they require 
>a Cisco white paper or field notice to answer, etc.), and no one has made 
>any attempt to improve them. What is amazing about some of them is that 
>they are direct mis-quotes from some of the Cisco-Press books, and some 
>were paraphrased incorrectly and unintentionally changed the meaning. It 
>is my belief that these questions were not written by Cisco but rather 
>some hired third-party who didn't understand the material they were asking 
>about (let's hope that this is the case, or else they are a real 
>embarrassment to Cisco!). I had to inform Cisco that the CIT-8/28 exam 
>wasn't even showing the gifs (they have since fixed that at least). Don't 
>use this resourse to make a decision on whether you are ready for the real 
>exam, just use it as a reference to make sure that you have covered the 
>material. The real exam has a few nebulous questions, but not to the 
>extent that the assessment exams do.
>
>Regards,
>MLC
>>"Lonnie Paschall" <[EMAIL PROTECTED]> wrote 
>>in message 
>><8shead$gfk$[EMAIL PROTECTED]">news:8shead$gfk$[EMAIL PROTECTED]>8shead$gfk$[EMAIL PROTECTED]">news:8shead$gfk$[EMAIL PROTECTED]...
>>They are practice beta exams that are avaialable to cco login users. No 
>>charge, excellent rescource!
>>>"Ricardo Ciganda" 
>>><[EMAIL PROTECTED]> wrote in message 
>>>news:C3CBB71D56E4D3119C9C00902727B15C1A21B9@bmnt01>C3CBB71D56E4D3119C9C00902727B15C1A21B9@bmnt01">news:C3CBB71D56E4D3119C9C00902727B15C1A21B9@bmnt01...
>>>
>>>Hi all!
>>>
>>>I would like to know what is the finality of the COLT tests. May I have 
>>>to paid for this or is only a simulation of a test?
>>>
>>>Thanks in advance.
>>>
>>>Ricardo Ciganda
>>>Dpto. de Sistemas
>>>Bytemaster Servicios Informaticos S.A.




Priscilla Oppenheimer
http://www.priscilla.com

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RE: High Availability. (Maybe OT)

[David Wolsefer]

Kevin,
 
What 
you want to do is use multiple NICs on each server, connecting one NIC to each 
switch. If you need a 5 9s type of design, then you need to use 4 NICs with one 
NIC connecting to 2 different blades on each switch. In addition, if you need 
redundancy at the application layer, then you need clustering software. This 
does indeed work with Solaris. You should also investigate using the Arrowpoint 
switches for local and global load balancing. They will also solve problems such 
as maintaining stateful connections with cookies and SSL.
 
Regards,
 
David 
Wolsefer CCIE#5858

  -Original Message-From: [EMAIL PROTECTED] 
  [mailto:[EMAIL PROTECTED]]On Behalf Of Kevin WelchSent: 
  Friday, October 13, 2000 1:08 AMTo: 
  [EMAIL PROTECTED]Subject: High Availability. (Maybe 
  OT)
  I am trying to figure out how to impliment a 
  redundant network design.  The problem I keep running into is the 
  connection to the server.  I can provide Access redundancy through the 
  use of two switches.  I can provide some level of server redundancy via 
  the use of 2 NICs or 2 Servers.  The problem is how to provide 
  application layer redundancy.  I have been able to prove the network 
  itself is redundant, but connectivity to servers seems to be where I am having 
  trouble with my studies.
   
  From my understanding I cannot do etherchannel 
  accross switches, and more over, I remember that etherchannel does not 
  provide redundancy because if one link goes down the whole channel goes 
  down.  Please correct me if this is wrong.  
   
  Example:
    Realizing that the expectation that a 
  server stay up all the time would still be a single point of failure.  In 
  the event of a network failure on a switch, how do I provide network access to 
  the Server.  
   
  Proposed is to connect the server via a second 
  NIC or second port on a dual or quad NIC to a secondary access switch.  
  
   
  Problem, maintaing the same layer 3 address 
  accross both switches in the advent that one link should fail, the server 
  maintains reachability.
   
  Giving that in this case I would be talking about 
  a solaris system, I have thought about using simple scripts to watch for the 
  interface to go down and reconfigure.  I am curious if anyone knows of 
  any hardware/software solutions for doing this?   I am guessing that 
  I am not the first person to ask for something like this.
   
  -- Kevin

RE: BGP - Internet Routing Architectures, Second Edition

[Priscilla Oppenheimer]

Good day,

A second edition implies that the book is more up-to-date. It probably 
doesn't include many new topics, though. Halabi's second edition of 
"Internet Routing Architectures" is out and it's similar to his first 
edition, (in other words, very good). He got help from Danny McPherson on 
the second edition, and I think that made the book even more readable. It 
is THE book for learning BGP, a very important topic for BSCN.

Jeff Doyle, on the other hand, is working on Volume II of his "Routing 
TCP/IP." That's different than a second edition. A second volume means new 
material, new topics. In particular, his Volume II is going to include BGP. 
Volume I did not include BGP. On the other hand, Volume I of "Routing 
TCP/IP" is THE book for learning every other major IP routing protocol, 
especially OSPF.

So, for now, I would recommend Volume I of Jeff Doyle's "Routing TCP/IP" 
and the 2nd edition of Halabi's "Internet Routing Architectures." Volume II 
of "Routing TCP/IP" isn't due out until March. By then you will have 
memorized Halabi's book and become a CCIE! ;-)

Priscilla

At 11:15 AM 10/17/00, Jean-Michel Roberts wrote:
>Good day,
>
>What is the difference between the Internet Routing Architectures book by
>Basam Halabi 1st edition and 2nd edition? Is it just a more up to date
>version?
>
>Which would you recommend to prepare for the BSCN exam and other exams in
>the CCNP/CCIE track?
>
>The book: Routing TCP/IP by Doyle also has two editions. Dou you have any
>comments, i.e. which shall I get... the second edition only comes out early
>next year? Is it also a more up to date version or is the 1st version
>sufficient? (I also don't want to wait until next year)
>
>Thanks in advance.
>
>Kind Regards,
>
>Jean-Michel
>---
>Jean-Michel Roberts  (MCSE) (MCP+Internet) (CCNA)
>System Administrator
>Cell: +27 82 71 22 555
>Email: [EMAIL PROTECTED]
>
>_
>FAQ, list archives, and subscription info: 
>http://www.groupstudy.com/list/cisco.html
>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]




Priscilla Oppenheimer
http://www.priscilla.com

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Continuing on Book review: BSCN Thomas II and company.

[Daniel Boutet]

Well, I do not know if you guys read my first comments on the books but I
was not too thrilled about these first few
chapters.

Chapt 2 and 3 are not very strong on presentation and content.  Check
archives for earlier comments

To add to comments about chapt 3:

There is a Command review on IGRP on page 80 which is good but
somewhat not very well explained with the context of the chapter
Left me perplexed anyway!

Chapter 4 is a IPv4 review: subnetting, CIDR,  ip helper address, ip
unnumbered etc This chapter is well presented,
so worth reading,  but what I don't really understand is why the authors
assume that you know what the exact syntax
of a command "replacements" are? Let me explain with an example:

Routerc(config)#  ip unnumbered 

Seems pretty straight forward. But what I like is that it should be
reinforced with perhaps a diagram with proper interface naming and complete
with a concrete example.  I call it a sample configuration!!!

Chapt 5 and 6:

Very good intro to OSPF follow by very good descriptions of output commands.
Now we are talking Mr. Thomas.
Of course I have to comment on the commands that have the "syntax
description" only rather than a real sample configuration. These are STUDY
GUIDES. I am learning the stuff so please do not "assume" that I know it
because I sure don't.

I expected a list of commands as per page 80 at end of chapter 3, but
NO.  What happen to standard
writing between chapters? Doesn't this make it a better flow and answers
readers expectation?

Any comments are welcome. (not too much flaming, please)

Daniel


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RE: IP Subnetting Question

[Marshal Schoener]

/28 = 
255.255.255.240   
You 
are correct!!!
 
the 
/28 just means a 28 bit mask...  that is .240   
:--)

  -Original Message-From: Robert Cabeca 
  [mailto:[EMAIL PROTECTED]]Sent: Tuesday, October 17, 2000 10:00 
  AMTo: cisco group studySubject: IP Subnetting 
  Question
  I am not understanding the concept of using an IP address followed by /n. 
  Example 10.20.193.20 /28. The way I am looking at it I get a Subnet mask of 
  255.255.255.240. But I am being told that it is really a mask of 
  255.255.240.0, however I am not being given an explanation. I thought that 
  255.255.240.0 has a /20. but it is a /12 instead? Any enlightenment would be 
  appreciated. 
   
  peace 
  Rob
   

Re: IP Subnetting Question

[Phil Barker]

Robert,
  You need to read up on the difference between
classfull and classless networks.

Take the address 100.1.0.0 The classfull mask for this
network is class A which is 255.0.0.0 or /8 . There is
no subnetting yet.
Lets say you want to provide 8 bits of subnetting.
then you have 100.1.0.0 255.255.0.0 or /16 which
contains 8 bits of subnetting.

HTH

Phil.

--- Robert Cabeca <[EMAIL PROTECTED]> wrote: > I am
not understanding the concept of using an IP
> address followed by /n. Example 10.20.193.20 /28.
> The way I am looking at it I get a Subnet mask of
> 255.255.255.240. But I am being told that it is
> really a mask of 255.255.240.0, however I am not
> being given an explanation. I thought that
> 255.255.240.0 has a /20. but it is a /12 instead?
> Any enlightenment would be appreciated. 
> 
> peace 
> Rob
> 
> 



Do You Yahoo!?
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Re: Token Ring and the CCIE Lab

[Marc Russell]

You need to know token-ring for the lab. The questions are moving more
towards DLSW. However, they recently added a 3920 token-ring switch to the
mix.

Marc Russell
CCIE Boot Camp
www.ccbootcamp.com




""Jack Walker"" <[EMAIL PROTECTED]> wrote in message
8sfvv6$7j0$[EMAIL PROTECTED]">news:8sfvv6$7j0$[EMAIL PROTECTED]...
> Don,
>
> Do not think you need to have token-ring, I do not have them and do not
have
> Cat too, I just rent some rack time when I needed to get familiar with
basic
> configuration, I heard DLSW stuffs are there. But you do not need
token-ring
> to practice DLSW. As far as you can configure the it, it should be fine.
> Even if you have a token-ring interface, what can you do with it execpet
the
> basic 'ring-speed, soure-route 1 1 10, soure-route spanning", that is
pretty
> much it is.
> I know many people just read book, get 3 or 4 router setup frame-relay and
> rent rack time if needed, and get CCIE.
> I personelly, really do not believe buying 6-7 routers and Cat for home
lab,
> not necessary at all, again, my opnion.
>
> Thanks
>
> Jack Walker
>
>
> --
>
> ""Don Dettmore"" <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > Good afternoon
> >
> > I am now beginning serious CCIE preparation - written in 1 month and
> > lab in 6 months.
> >
> > I am wondering how much the CCIE lab currently focuses on Token Ring
> > and its related technologies (SRB, RSRB, DLSW).  My lab at work has a
> > good deal of equipment - but alas, no token ring.  Do I need to go out
> > and buy some practice gear?  Or can I get away with my (strong)
> > theoretical knowledge.  (I have some hands-on experience with token
> > ring - but years ago with non-cisco gear).
> >
> > I've heard that with the progression in technology that the CCIE lab
> > has turned its focus to more emerging technologies, such as VOIP.
> > Does that mean there is less focus on disappearing technologies, such
> > as token ring or FDDI?  Will it have changed in 6 months?
> >
> > Has anyone taken the exam recently that can shed some light?  Without
> > breaking your NDA, of course :).
> >
> > Thanks in advance!
> >
> > Don Dettmore
> > CCNP (and a bunch of other irrelevant crap)
> >
> >
> > _
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
>
>
> _
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>


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RE: oh geez another CCNP

[Daniel Boutet1]

Congradulations are in order!


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Brian Lodwick
Sent: Tuesday, October 17, 2000 8:50 AM
To: [EMAIL PROTECTED]
Subject: oh geez another CCNP


I have read everyone else writing into the list excited to have their CCNP
and finally it's my chance to be excited.

Brian is CCNP today.

I'm sure everyone is excited

Thanks for everyones questions and replies on the list it has been very
helpful.

>>>Brian
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Re: Hand over the domain with the phrase "cisco" to cisco.com?

[Brian W.]

It seems like if they think you're infringing on their copyright, thats
enough for them.  I had to give up musicman.org because Musicman is a
copyrighted trademark of ernie ball guitars.  This is in spite of the fact
that I was not selling anything, it was a .org site, and Musicman is also
the name of some character in a play or something.

Brian

On Tue, 17 Oct 2000, Dale Holmes wrote:

> Yeah - that's a good idea!!!
> 
> Change your website to one that is a shrine to the Cisco beverage!!! I bet 
> that they won't complain... Remove all of the info that pertains to Cisco 
> Systems - all of it - and replace it with pictures of the Cisco drink and 
> anecdotes about what you did when you drank it...
> 
> Then tell the lawyers that you refuse to give up the domain, and tell them 
> to examine the new content.
> 
> I'd like to see if they just drop this witch hunt if the content does not 
> include them, or if they continue...
> 
> 
> >From: "whatshakin" <[EMAIL PROTECTED]>
> >Reply-To: "whatshakin" <[EMAIL PROTECTED]>
> >To: <[EMAIL PROTECTED]>
> >Subject: Re: Hand over the domain with the phrase "cisco" to cisco.com?
> >Date: Tue, 17 Oct 2000 00:08:00 -0700
> >
> >It is not illegal to have the Cisco name in your domain name unless you use
> >it for Cisco Systems content.  After all, there is a Cisco fish, drink, 
> >city
> >and kid to name just a few, and none of those are in violation of the Cisco
> >Systems trademark.
> >
> >Tell them you'll hand it over for $10K or a free Catalyst 8500 if they want
> >it that badly!  :-)
> >
> >
> >- Original Message -
> >From: DotCom CiscoSite <[EMAIL PROTECTED]>
> >To: <[EMAIL PROTECTED]>
> >Sent: Monday, October 16, 2000 11:25 PM
> >Subject: Hand over the domain with the phrase "cisco" to cisco.com?
> >
> >
> > > Dear All Cisco GroupStudy Members,
> > >
> > > I would like to thank the Cisco GroupStudy Mailing
> > > List for the contribution on the Cisco Certification,
> > > and for the information which is very useful, with
> > > some have been put to my site: ciscosite.com.
> > >
> > > I have just received some messages stating that the
> > > ciscosite.com should be handed over to Cisco because
> > > of using the phrase "cisco" and because of the
> > > attached reasons. Does anyone of you have the problem
> > > like this, that the domain name should be handed over
> > > to Cisco? I would like to know this further because
> > > it's the only domain name I have ever registered right
> > > now, and I have promoted it even in my namecards.
> > >
> > > And concerning this, I have replied to Brobeck that I
> > > would better appeal this case to the GroupStudy first
> > > before making any further steps. So all of your
> > > suggestions are very expected.
> > >
> > > Thanks in advance for your comments regarding this.
> > >
> > > With Sincerity,
> > > Wisin
> > > http://www.ciscosite.com
> > >
> > > Attached message:
> > >
> > > Dear Wisin,
> > >
> > > I will respond to your questions in turn.
> > >
> > > First, while we appreciate your stated willingness to
> > > comply with Cisco's
> > > requests, we note that the changes we have requested
> > > have not been made to
> > > your site to date.  Please ensure that these changes
> > > are completed by
> > > October 17, 2000.
> > >
> > > Second, the fact that a registrar permits registration
> > > of a domain name has
> > > no bearing on whether the domain name is in violation
> > > of another party's
> > > trademark rights.  Registrars do not make independent
> > > determinations of the
> > > propriety of a domain name registration; they simply
> > > determine whether a
> > > name has been registered previously.  The fact that
> > > you actually registered
> > > ciscosite.com does not give you the right to use
> > > Cisco's trademark as part
> > > of your domain name.
> > >
> > > Finally, Cisco does not provide compensation for the
> > > discontinued use of a
> > > domain name.  Cisco will provide you with compensation
> > > for the actual cost
> > > of transferring the domain name to Cisco, and will
> > > permit you to use the
> > > domain name for a limited period of time for the sole
> > > purpose of informing
> > > users of the address of your new website.  If you
> > > intend to use the site
> > > temporarily to direct people to your new site, please
> > > commence this use
> > > immediately and ensure that the site is taken down by
> > > October 17, 2000.
> > >
> > > Thank you for your continued cooperation.
> > >
> > > Sincerely,
> > > BROBECK PHLEGER & HARRISON LLP
> > > http://www.brobeck.com
> > >
> > > __
> > > Do You Yahoo!?
> > > Yahoo! Messenger - Talk while you surf!  It's FREE.
> > > http://im.yahoo.com/
> > >
> > > _
> > > FAQ, list archives, and subscription info:
> >http://www.groupstudy.com/list/cisco.html
> > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> > >
> >
> >__

Re: Configuration Reference - I hope this helped

[L Reid]

http://www.amazon.com/exec/obidos/ASIN/0071351086/o/qid=971801868/sr=2-1/104-4639001-3587155
  
  SV <[EMAIL PROTECTED]> wrote: 




Guys
 
I tried looking up Amazon for McCalls for this book. Didnt find it.   :-(
Could you send me a complete name or more details. 
 
Thanks
 
SV

- Original Message - 
From: L Reid 
To: Alldread AK2 Robert J ; Cisco@Groupstudy. Com (E-mail) 
Sent: Tuesday, October 17, 2000 11:37 AM
Subject: Re: Configuration Reference
I think that McCalls has a book named CCIE Labs $70.00 or so.  Check Amazon.com

  Alldread AK2 Robert J <[EMAIL PROTECTED]> wrote: 
I was just wondering if anyone has seen a book that has step-by-stepexamples of how to configure access-lists, NAT, frame-relay, and just abouteverything else. I had 14 Cisco press books that tell me all this, but Iwas looking for one book that has nothing but configurations examples. Any ideas would be great!thanks,skin-e_FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.htmlReport misconduct and Nondisclosure violations to [EMAIL PROTECTED]= = = = = = = = = = = = = = = = = =[EMAIL PROTECTED]= = = = = = = = = = = = = = = = = = 


Do You Yahoo!?Yahoo! Messenger - Talk while you surf! It's FREE.= = = = = = = = = = = = = = = = = =[EMAIL PROTECTED]= = = = = = = = = = = = = = = = = =Do You Yahoo!?
Yahoo! Messenger - Talk while you surf!  It's FREE.

Re: Vlans over Links

[Donald B Johnson Jr]

If you just have one vlan I don't think you need a router
Duck
- Original Message -
From: Andrew Twigger <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, October 17, 2000 7:03 AM
Subject: Vlans over Links


> Hi Group
>
> I wonder if any body can answer this or point me in the right direction
for
> me.
>
> I am looking at VLANs and what can be done with them.
>
> I know I can use ISL to link two switches together with even a router in
the
> middle and have a vlan running from switch to switch. I am also sure that
I
> can use 802.10 to do the same. Also if my understanding is correct you can
> only use ISL when all interfaces are fast Ethernet?
>
> Question then, can you set up a Vlan between two switches but in between
the
> switches is not just a router but a PIX as well, so you  have :-
>
> Switch1(VLAN10) - - - -  Router - - -  - PIX - - - - - Router - - - - -
> Switch (VLAN10)
>
> Is this possible? if so do you use ISL or 802.10?
>
> Thank in advance.
>
> Andrew
>
> Andrew S. Twigger MCP, Network+, CCNA
> Snr Systems Engineer
> Technical Service's
> DIALnet PLC
> e : [EMAIL PROTECTED]
> t : 0121 624 5050
> m : 07967 470 964
>
>
> _
> FAQ, list archives, and subscription info:
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IP Subnetting Question

[Robert Cabeca]

I am not understanding the concept of using an IP address followed by /n. 
Example 10.20.193.20 /28. The way I am looking at it I get a Subnet mask of 
255.255.255.240. But I am being told that it is really a mask of 255.255.240.0, 
however I am not being given an explanation. I thought that 255.255.240.0 has a 
/20. but it is a /12 instead? Any enlightenment would be appreciated. 
 
peace 
Rob
 

Re: Configuration Reference

[Donald B Johnson Jr]

The cisco web site has all the IOS command and config references I think
there is nine or ten.
Dial
Wan
Switching
IOS
IP Routing Protocols
Network Protocols - Three Parts
QOS
Security
Voice
Bridging and IBM
And they are free our favirote word.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/
http://www.cisco.com/univercd/cc/td/doc/product/software/ios113ed/113ed_cr/
Duck


- Original Message -
From: Alldread AK2 Robert J <[EMAIL PROTECTED]>
To: Cisco@Groupstudy. Com (E-mail) <[EMAIL PROTECTED]>
Sent: Tuesday, October 17, 2000 6:10 AM
Subject: Configuration Reference


> I was just wondering if anyone has seen a book that has step-by-step
> examples of how to configure access-lists, NAT, frame-relay, and just
about
> everything else.  I had 14 Cisco press books that tell me all this, but I
> was looking for one book that has nothing but configurations examples.
>
> Any ideas would be great!
>
> thanks,
> skin-e
>
> _
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
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Re: DDS encapsulation in Australia

[Matt Martin]

    I would also add that it is only a physical media. Think
of it as a T-1, T-3, sonet etc.. The encapsulation has no bearing on the
physical media or farming in this
case. DDS is a older way of delivering a 56k circuit to ensure 1's
density on the
T-1 by inserting a 1 in every 8th bit of that particular DS0.
 
 
Jesmond Psaila wrote:

  You
can use both , you may even use frame over dds if you want, most of the
times it is presented to you in X.21, so higher layer encapsulation should
not matter, as long as both ends match.

-Original
Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of John Covey
Sent: Tuesday, October 17,
2000 2:16 PM
To: [EMAIL PROTECTED]
Subject: Re: DDS encapsulation
in Australia
 
I'd say, more than likely ppp
""M.
A."" <[EMAIL PROTECTED]>
wrote in message 001201c0380f$e3689240$[EMAIL PROTECTED]">news:001201c0380f$e3689240$[EMAIL PROTECTED]...Hi
gang, This is a question
related to the DDS (I think it stands for Digital Data Service) WAN links
provided by Telstra in Australia.  What's the encapsulation to be
used on DDS links?  Is it PPP or HDLC? Also,
does anyone have an example configuration for DDS under serial interfaces? Much
appreciate any help! Martin

CCIE Security Qualification Beta Exam

[Nanbo, Kuniaki]

Will be provided.

http://www.cisco.com/warp/public/625/ccie/ccie_program/whatsnew.html

--
Nanbo, Kuniaki
mailto:[EMAIL PROTECTED]

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RE: NAT twice, will this work?

[Jason Jin]

I have a situtation that I need to NAT twice, once on router, 
and then again on firewall-1.  I can't figure out wheather this 
will ever work , here 's the our network diagram:


 WAN   DMZ  INTERNAL 
-| Router ||Firwall-1|--|HostA|--
 
we are assigned address space 32.x.x.192-32.x.x.207 
from out ISP( WAN), since our  DMZ is using 172.24.100.0/24
the router is doing static NAT to this range.  our internal network
is 10.10.1.0/24. 


The IP address as folowes: 
  
Router   = interface on DMZ 172.24.100.3 ( NATed)
Firewall-1: interface (qfe0)  on DMZ   172.24.100.2
interface (qfe1)  on internal 10.10.1.2

HostA:  since I need to access host A from WAN side, 
hostA  need to be NAT'ed at two place ,
at firewall-1 it NAT from 10.10.1.101 to 172.24.100.101
at Router it is NAT from 32.x.y.101 to 172.24.100.101.

I have setup the firewall rules , route and arp entry on firewall-1 
for HostA, and address translation work fine for hostA, if 
I connect from DMZ. 

Now here's my problem: if I want connnect from hostB from wan
side, the packet destined for 32.x.y.101 , the destination 
first NATed to 172.24.100.101 , then pickup by firwall-1
who's listen for arp request, NATed to 10.10.1.101 ? 
will this work? 

one question : when somebody the DMZ sent out a arp request 
for 172.24.100.101, the firwall-1 will respond , but  will router 
respond too, since it is doing NAT for this address as well?
any help is much appreciated.


TIA,

Jason 

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BSCN: Distribute lists and prefix lists- extended or standard?

[Jennifer Mellone]

Please tell me if I am correct:

Distribute lists are defined by standard access lists (vs. extended access
lists).  True?

Prefix lists are also defined by standard access lists.  True?

- Jennifer

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BSCN: BGP Atomic Aggregate

[Jennifer Mellone]

Does anyone know an easy definition of what the atomic aggregate is and what
it does?  I do know it is set by default unless the "as-set" command is
used.

- Jennifer

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Re: This is a test please reply

[Dale Holmes]

I did not receive this message...


>From: "Kevin O'Gilvie" <[EMAIL PROTECTED]>
>Reply-To: "Kevin O'Gilvie" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Subject: This is a test please reply
>Date: Tue, 17 Oct 2000 11:21:43 -0400
>
>
>This is a test please reply
>
>_
>FAQ, list archives, and subscription info: 
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RE: diff b/w BSCN and BCMSN?

[Marshal Schoener]

One is routing and one is switching :-)

BSCN = Routing

BCMSN = Switching

  Good luck!!!

-Original Message-
From: deltan [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 17, 2000 8:13 AM
To: [EMAIL PROTECTED]
Subject: diff b/w BSCN and BCMSN?


Could anyone tell me the differences between BSCN and
BCMSN in terms of coverage for switching and routing
etc?

Any more details would be highly appreciated.

Thanks!

-D


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oh geez another CCNP

[Brian Lodwick]

I have read everyone else writing into the list excited to have their CCNP 
and finally it's my chance to be excited.

Brian is CCNP today.

I'm sure everyone is excited

Thanks for everyones questions and replies on the list it has been very 
helpful.

>>>Brian
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Re: oh geez another CCNP

[G.E. Murphy]

Congratulation$$$

Brian Lodwick wrote:

> I have read everyone else writing into the list excited to have their CCNP
> and finally it's my chance to be excited.
>
> Brian is CCNP today.
>
> I'm sure everyone is excited
>
> Thanks for everyones questions and replies on the list it has been very
> helpful.
>
> >>>Brian
> _
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RE: dlsw?

[Brian Lodwick]

if you would've had to take the ACRC test you would've learned to hate Data 
Link Switching and Data Link Switching+.

>>>Brian

>From: "Adam Hickey" <[EMAIL PROTECTED]>
>Reply-To: "Adam Hickey" <[EMAIL PROTECTED]>
>To: "Mondo" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>
>Subject: RE: dlsw?
>Date: Tue, 17 Oct 2000 08:11:46 -0700
>
>http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/dlsw.htm
>
>Adam Hickey
>CCNA MCP
>[EMAIL PROTECTED]
>
> > -Original Message-
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> > Mondo
> > Sent: Tuesday, October 17, 2000 7:07 AM
> > To: [EMAIL PROTECTED]
> > Subject: dlsw?
> >
> >
> > Hi all,"
> > Could someone tell me what DLSW is and what it means? I hear it's an old
> > routing protocol ""data link switching "or "digital line
> > switching "but it's
> > not confirmed. I can't find anything about it in my books. Could someone
> > clarify this for me please?
> > Thanks,
> > Mondo
> >
> >
> > _
> > FAQ, list archives, and subscription info:
>http://www.groupstudy.com/list/cisco.html
>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
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Re: Configuration Reference

[L Reid]

I think that McCalls has a book named CCIE Labs $70.00 or so.  Check Amazon.com
  
  Alldread AK2 Robert J <[EMAIL PROTECTED]> wrote: 
I was just wondering if anyone has seen a book that has step-by-stepexamples of how to configure access-lists, NAT, frame-relay, and just abouteverything else. I had 14 Cisco press books that tell me all this, but Iwas looking for one book that has nothing but configurations examples. Any ideas would be great!thanks,skin-e_FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.htmlReport misconduct and Nondisclosure violations to [EMAIL PROTECTED]= = = = = = = = = = = = = = = = = =[EMAIL PROTECTED]= = = = = = = = = = = = = = = = = =Do You Yahoo!?
Yahoo! Messenger - Talk while you surf!  It's FREE.

Re: diff b/w BSCN and BCMSN?

[michael champion]

deltan <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Could anyone tell me the differences between BSCN and
> BCMSN in terms of coverage for switching and routing
> etc?

Uh, they are totally unrelated. The BCSN is about advanced routing protocols
(EIGRP, OSPF, BGP4) and has little to do with switching. The BCMSN is
primarily concerned with the Catalyst 5000 series of switches, and focuses
on VLANs, Multicast, Spanning-tree, ISL, VTP, etc. You do not need to have
completed your study of BCSN reference materials for the BCMSN, and
vice-versa.

A word of warning, however. Be very careful as to what command is used on
which type of device. Although most routers and some switches use IOS
software, the same command might mean different things depending on whether
it is executed on a switch or a  router.

Regards,
MLC
>
> Any more details would be highly appreciated.
>
> Thanks!
>
> -D
>
>
> __
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RE: dlsw?

[Adam Hickey]

http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/dlsw.htm

Adam Hickey
CCNA MCP
[EMAIL PROTECTED]

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Mondo
> Sent: Tuesday, October 17, 2000 7:07 AM
> To: [EMAIL PROTECTED]
> Subject: dlsw?
> 
> 
> Hi all,"
> Could someone tell me what DLSW is and what it means? I hear it's an old
> routing protocol ""data link switching "or "digital line 
> switching "but it's
> not confirmed. I can't find anything about it in my books. Could someone
> clarify this for me please?
> Thanks,
> Mondo
> 
> 
> _
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This is a test please reply

[Kevin O'Gilvie]

This is a test please reply

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Re: Hand over the domain with the phrase "cisco" to cisco.com?

[Howard C. Berkowitz]

http://www.hazegray.org/danfs/submar/ss290.htm

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diff b/w BSCN and BCMSN?

[deltan]

Could anyone tell me the differences between BSCN and
BCMSN in terms of coverage for switching and routing
etc?

Any more details would be highly appreciated.

Thanks!

-D


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Monster Network equipment Lab on Ebay!

[Lance Hubbard]

Lookie what I found.

http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=468890595

cheers,

Lance
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RE: CCNP v2.0 prep -- Exam Cram series

[Miller, Nathan (AZ15)]

I am using the Cisco Press 4 book set for CCNP 1.0 and am augmenting these
with the exam cram books and the Basam Halabi (sp?) BGP book.

-Original Message-
From: Lopez, Robert [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 17, 2000 6:23 AM
To: [EMAIL PROTECTED]
Subject: RE: CCNP v2.0 prep -- Exam Cram series


What Cisco Press books did you use for the CCNP 2.0 exam

-Original Message-
From: YonksMan [mailto:[EMAIL PROTECTED]]
Sent: Monday, October 16, 2000 3:25 PM
To: [EMAIL PROTECTED]
Subject: CCNP v2.0 prep -- Exam Cram series


I just recently passed the CCNP v2.0 exams.  I am keeping the Cisco Press
books, but am selling my Coriolis Exam Cram books covering the four exams
for CCNP v2.0.  These books are unused and in perfect shape.  "The Cram
Sheet" is intact at the front of the book.

http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=470496317

Here is a list of the books:

Exam 640-503: Routing
ISBN: 1576106330 * Suggested Retail Price: $29.99

Exam 640-504: Switching
ISBN: 1576106349 * Suggested Retail Price: $29.99

Exam 640-505: Remote Access
ISBN: 1576104370 * Suggested Retail Price: $29.99

Exam 640-506: Support
ISBN: 1576106810 * Suggested Retail Price: $29.99

Jason Younker, CCNP
[EMAIL PROTECTED]


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Re: cross-over roll-over : Here is THE simplest rule

[Dale Holmes]

Oh God, are we all gonna have to learn what DCE and DTE are???

NO Anything but that..

hehehe
[=`)
Dale


>From: "Kevin Wigle" <[EMAIL PROTECTED]>
>Reply-To: "Kevin Wigle" <[EMAIL PROTECTED]>
>To: "Ben" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>
>Subject: Re: cross-over roll-over : Here is THE simplest rule
>Date: Tue, 17 Oct 2000 09:29:40 -0400
>
>well, a cable "modem" attaches with a Cat5 cable.
>
>Haven't seen one but the xDSL "modem" probably does too.
>
>I have a buddy who makes a DB9/DB25 custom plug and uses Cat5 between them
>for just about everything.
>
>Kevin Wigle
>CCDP/CCNP.
>
>- Original Message -
>From: "Ben" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Tuesday, October 17, 2000 1:14 AM
>Subject: RE: cross-over roll-over : Here is THE simplest rule
>
>
> > H, let me think. I never thought of that, that someday we will be
> > connecting a workstation to a modem with a Cat5 cable.
> > Workstation to a modem, ?  no the rule does not apply
> > How about a TV to a VCR?   no, it does not apply neither.
> > How about the toaster?   nooope.
> >
> > You are right, that is not a good rule. Don't use it.
> >
> > Bernard
> >
> >
> >
> >
> >
> > How about when you connect a workstation to a modem will this rule 
>apply?
>I
> > think not.
> > This rule will only be applicable to LAN devices but for WAN devices the
> > rule  as Sebastian pointed out should be applied.
> >
> >
> > >>The rule is:
> > >>connecting devices of the same OSI layer, use cross-over cable.
> > >>connecting devices of different layers, use straight through.
> > >>A workstation is considered layer3.
> > >>
> > >>Bernard
> >
> >
> > _
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RE: dlsw?

[Louie Belt]

DLSW is an older technology developed by IBM, originally for use with SNA
over WANs.  DLSW+ is a Cisco version of DLSW that is also backwardly
compatible with DLSW and RSRB.  It supports multiple encapsulations and even
handles translational bridging automatically.  It's strength comes from the
fact that it terminates the LLC Type 2 connection at the switch, making the
LLC connections at each end independent of each other.  This limits LLC
time-outs to the Local LAN.  It also prevents LLC acknowledgments from
traversing the WAN.  This greatly reduces traffic across the WAN links.
This design allows switches to apply "back pressure" to end systems to
provide flow control and congestion control.

Louie




Since time immemorial and pre-industrial, 'greed' has been the accusation
hurled at the rich by the concrete-bound illiterates who were unable to
conceive of the source of wealth or of the motivation of those who produce
it.
-- Ayn Rand



-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Mondo
Sent: Tuesday, October 17, 2000 9:07 AM
To: [EMAIL PROTECTED]
Subject: dlsw?


Hi all,"
Could someone tell me what DLSW is and what it means? I hear it's an old
routing protocol ""data link switching "or "digital line switching "but it's
not confirmed. I can't find anything about it in my books. Could someone
clarify this for me please?
Thanks,
Mondo


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RE: Firewall in ATM environment (design question).

[Greene, Patrick]

Title: RE: Firewall in ATM environment (design question).





Ryan,
What sort of Internet link do you have..what speed?  What model router do you have at the internet.  You may want to just put the Firewall Feature Set on your internet router an be done with it, depending on the link speed going to Net.  

Patrick Greene



-Original Message-
From: Ryan Ngai Hon Kong [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 17, 2000 3:45 AM
To: '[EMAIL PROTECTED]'
Subject: RE: Firewall in ATM environment (design question).





Ryan Ngai @ ENT
E-mail: hkngai    Ext:6805


-Original Message-
From: Ryan Ngai Hon Kong 
Sent: Tuesday, October 17, 2000 12:00 PM
To: '[EMAIL PROTECTED]'
Subject: Firewall in ATM environment (design question).



Hi guys,


Just another design question.


        - non cisco ATM switch  -   Cisco Router - Internet 
ATM         - non cisco ATM switch  -   LAN 1
Core        - non cisco ATM switch  -   Internal Network
Switch  - non cisco ATM switch  -   Remote Network A
        - non cisco ATM switch  -   Remote Network B
        - non cisco ATM switch  -   LAN 2


Where do you think we can position a firewall?
Other alternative such as create LANE or propose switch to create
VLAN is welcome.


Thanks.


Ryan Ngai @ ENT
E-mail: hkngai    Ext:6805


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RE: dlsw?

[Irwin Lazar]

A quick search of Cisco's web site delivered this reference:

http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/dlsw.htm



> -Original Message-
> From: Mondo [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, October 17, 2000 10:07 AM
> To: [EMAIL PROTECTED]
> Subject: dlsw?
> 
> 
> Hi all,"
> Could someone tell me what DLSW is and what it means? I hear 
> it's an old
> routing protocol ""data link switching "or "digital line 
> switching "but it's
> not confirmed. I can't find anything about it in my books. 
> Could someone
> clarify this for me please?
> Thanks,
> Mondo
> 
> 
> _
> FAQ, list archives, and subscription info: 
> http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> 


 Irwin Lazar.vcf

RE: Configuration Reference

[Sena, Elver]

Take a look at this page:

http://www.cisco.com/warp/public/700/tech_configs.html

Hope it helps.

Elver

-Original Message-
From: Alldread AK2 Robert J [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 17, 2000 9:10 AM
To: Cisco@Groupstudy. Com (E-mail)
Subject: Configuration Reference


I was just wondering if anyone has seen a book that has step-by-step
examples of how to configure access-lists, NAT, frame-relay, and just about
everything else.  I had 14 Cisco press books that tell me all this, but I
was looking for one book that has nothing but configurations examples.  

Any ideas would be great!

thanks,
skin-e

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dlsw?

[Mondo]

Hi all,"
Could someone tell me what DLSW is and what it means? I hear it's an old
routing protocol ""data link switching "or "digital line switching "but it's
not confirmed. I can't find anything about it in my books. Could someone
clarify this for me please?
Thanks,
Mondo


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