CiscoSecure ACS & Database replication.

[Langa Kentane]

Greetings.
I have been tasked with setting up database replication between two
CiscoSecure ACS servers both running Windows NT 4.0.

I have a couple of questions regarding the task.
1.  The master server runs ACS ver 2.4 and the slave runs 2.3... is
replication possible in this case?
2.  I read thru the documentation and I am stuck at the point on the RDBMS
setup where I have to supply a username and password!  What username and
password is this?  The docs don't say!
3. Where can I find a document that will guide me thru this process and help
me out in setting up the system because clearly the Cisco docs just don't
cut it!

Thanks in advance.

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Port Scanners (Was Re: Simulation: ---Unix!)

[Kevin Welch]

NMAP is a pretty powerful tool.  For windows port scans I actually prefer a
program called superscan.  If your interested in giving it a shot, try the
link below:
   http://www.foundstone.com/rdlabs/proddesc/superscan.html

It is not as good as nmap, but if your stuck on a windows box its a pretty
good choice.

-- Kevin

- Original Message -
From: "Pierre-Alex" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: "Kevin Welch" <[EMAIL PROTECTED]>; "Tony van Ree"
<[EMAIL PROTECTED]>; "ElephantChild" <[EMAIL PROTECTED]>
Sent: Monday, February 05, 2001 7:09 PM
Subject: Simulation: ---Unix!


> Hi All,
>
> I found the answer to my question by doing a search on "port scanner"
>
> Looks like the software is running on Unix, which means I am going to have
> to learn another operating system. :)
>
> Which version of Unix would you recommand? Seems to be hundreds of vendors
> out there!!!
>
> Pierre-Alex
>
> --
--
> --
> NMap Port scanner
>
>
>  Details
> A new version of NMap has been released. Nmap is used for security
auditing,
> and the new version improves performance, stability and adds more
features.
> Some of the new features are:
>
> 1) Fast parallel pinging of all the hosts on a network to determine which
> ones are up. You can use the traditional ICMP echo request (ping), TCP ACK
> packet, or TCP SYN packet to probe for responses. By default it uses both
> ACKs & ICMP pings to maximize the chance of sneaking through packet
filters.
> There is also a connect() version for under-privileged users. The syntax
for
> specifying what hosts should be scanned is quite flexible.
>
> 2) Improved port scans can be used to determine what services are running.
> Techniques you can use include the SYN (half-open) scan, FIN, Xmas, or
Null
> stealth scans, connect scan (does not require root), FTP bounce attack,
and
> UDP scan. Options exist for common filter-bypassing techniques such as
> packet fragmentation and the ability to set the source port number (to 20
or
> 53, for example). It can also query a remote identd for the usernames the
> server is running under. You can select any (or all) port number(s) to
scan,
> since you may want to just sweep the networks you run for 1 or 2 services
> recently found to be vulnerable.
>
> 3) Remote OS detection via TCP/IP fingerprinting allows you to determine
> what operating system release each host is running. This functionality is
> similar to the awesome queso program, although nmap implements many new
> techniques. In many cases, nmap can narrow down the OS to the kernel
number
> or release version. A database of ~100 fingerprints for common operating
> system versions is included, thanks to a couple dozen beta testers who
> worked on the last 19 private beta releases.
>
> 4) TCP ISN sequence predictability lets you know what sequence prediction
> class (64K, time dependent, "true random", constant, etc.) the host falls
> into. A difficulty index is provided to tell you roughly how vulnerable
the
> machine is to sequence prediction.
>
> 5) Decoy scans can be used. The idea is that for every packet sent by nmap
> from your address, a similar packet is sent from each of the decoy hosts
you
> specify. This is useful due to the rising popularity of stealth port
> scanning detection software. If such software is used, it will generally
> report a dozen (or however many you choose) port scans from different
> addresses at the same time. It is very difficult to determine which
address
> is doing the scanning, and which are simply innocent decoys.
>
>
>  Links
> You can download NMap 2.12 at:
> http://www.insecure.org/nmap/dist/nmap-2.12.tgz NMap's home page is at:
> http://www.insecure.org/nmap/.
>
>
>
>

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Call-back with ACS 2.6

[Wim Mariën]

Hello all,


We installed the new CISCO ACS 2.6 software on a Windows 2000 server to have
remote access through a CISCO 2600 with an E1 PRI.

It is running very well.  But unfortunately callback is not working.

We want to use the callback "Set by caller" option from the Windows User
database.  

When we do a "Debug Radius" on the CISCO 2600, we see that the CISCO tries
to callback with a callback-script, but Windows is not sending the number to
the CISCO.

Here is the config of the access server : 

hostname 3620
!
aaa new-model
aaa authentication login default local
aaa authentication ppp default radius
aaa authorization exec default none
aaa authorization network default radius
aaa accounting exec default start-stop radius
aaa accounting network default start-stop radius
enable secret x
enable password x
!
username x password x
ip dhcp-server 192.168.80.134
isdn switch-type primary-net5
!
!
controller E1 0/0
 framing NO-CRC4 
 pri-group timeslots 1-31
!
controller E1 0/1
 framing NO-CRC4 
 pri-group timeslots 1-31
!
process-max-time 200
!
interface FastEthernet0/0
 ip address 192.168.80.133 255.255.255.0
 no cdp enable
!
interface Serial0/0:15
 no ip address
 encapsulation ppp
 dialer rotary-group 1
 dialer-group 1
 isdn switch-type primary-net5
 isdn incoming-voice modem
 no cdp enable
!
interface Serial0/1:15
 no ip address
 isdn switch-type primary-net5
 no cdp enable
!
interface Group-Async1
 ip unnumbered FastEthernet0/0
 encapsulation ppp
 async mode interactive
 peer default ip address dhcp
 no cdp enable
 ppp authentication pap chap
 group-range 33 62
 ppp callback accept
!
interface Dialer1
 ip unnumbered FastEthernet0/0
 encapsulation ppp
 dialer in-band
 dialer-group 1
 peer default ip address dhcp
 no cdp enable
 ppp authentication pap chap
!
ip classless
!
dialer-list 1 protocol ip permit
no cdp run
radius-server host 192.168.80.134 auth-port 1812 acct-port 1813
radius-server key x


Has somebody the same experiences ?


Thanks ,


Wim


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STP

[Shaun Wakelen]

As an update to my earlier posting (thanks to all that replied), could
somebody clarify this:

4908 as a hub, with 3548's at the spokes, single gig link from each 3548 to
the 4908.

Requirement is to disable STP.

We are trying to prove that spanning tree isn't causing a particular
problem. We are taking the config back to basics, and don't have any
potential L2 loops (fingers crossed!), and we are trying to confirm that by
having spanning-disabled on the gigabit interfaces, if one of these links
went down, the BVI would not force a TCN (the 4908 is the root bridge) and
possibly cause the 4908 to hang. The network is suffering, and we need to
prove to the parent company that it is not spanning tree causing the
problems, so need to ensure that there is nothing wrong with the BVI
interface configuration.

Basically, if I pull a link to one of the 3548's, is it possible that the
4908 could try running STP, and cause network degradation/packet loss? I
don't think it should, as the 4908 is the root bridge, and shouldn't be
sending BPDU's to the other switches as spanning-disabled has been
configured on each sub-interface (see config below)

Thanks in advance

Regards
Shaun

!
version 12.0
no service pad
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname 4908-01
!
ip subnet-zero
ipx routing 0002.0002.0002
bridge irb
!
interface GigabitEthernet1
 ip address 10.192.1.1 255.255.255.0
 no ip directed-broadcast
 shutdown
!
interface GigabitEthernet2
 ip address 10.192.2.1 255.255.255.0
 no ip directed-broadcast
 shutdown
!
interface GigabitEthernet3
 no ip address
 no ip directed-broadcast
!
interface GigabitEthernet3.1
 encapsulation isl 1
 no ip redirects
 no ip directed-broadcast
 bridge-group 1 spanning-disabled
!
interface GigabitEthernet3.2
 encapsulation isl 2
 no ip redirects
 no ip directed-broadcast
 bridge-group 2 spanning-disabled
!
interface GigabitEthernet3.3
 encapsulation isl 3
 no ip redirects
 no ip directed-broadcast
 bridge-group 3 spanning-disabled
!
interface GigabitEthernet4
 no ip address
 no ip directed-broadcast
!
interface GigabitEthernet4.1
 encapsulation isl 1
 no ip redirects
 no ip directed-broadcast
 bridge-group 1 spanning-disabled
!
interface GigabitEthernet4.2
 encapsulation isl 2
 no ip redirects
 no ip directed-broadcast
 bridge-group 2 spanning-disabled
!
interface GigabitEthernet4.3
 encapsulation isl 3
 no ip redirects
 no ip directed-broadcast
 bridge-group 3 spanning-disabled
!
interface GigabitEthernet5
 no ip address
 no ip directed-broadcast
!
interface GigabitEthernet5.1
 encapsulation isl 1
 no ip redirects
 no ip directed-broadcast
bridge-group 1 spanning-disabled
!
interface GigabitEthernet5.2
 encapsulation isl 2
 no ip redirects
 no ip directed-broadcast
 bridge-group 2 spanning-disabled
!
interface GigabitEthernet5.3
 encapsulation isl 3
 no ip redirects
 no ip directed-broadcast
 bridge-group 3 spanning-disabled
!
interface GigabitEthernet6
 no ip address
 no ip directed-broadcast
!
interface GigabitEthernet6.1
 encapsulation isl 1
 no ip redirects
 no ip directed-broadcast
 bridge-group 1 spanning-disabled
!
interface GigabitEthernet6.2
 encapsulation isl 2
 no ip redirects
 no ip directed-broadcast
 bridge-group 2 spanning-disabled
!
interface GigabitEthernet6.3
 encapsulation isl 3
 no ip redirects
 no ip directed-broadcast
 bridge-group 3 spanning-disabled
!
interface GigabitEthernet7
 no ip address
 no ip directed-broadcast
!
interface GigabitEthernet7.1
 encapsulation isl 1
 no ip redirects
 no ip directed-broadcast
 bridge-group 1 spanning-disabled
!
interface GigabitEthernet7.2
 encapsulation isl 2
 no ip redirects
 no ip directed-broadcast
 bridge-group 2 spanning-disabled
!
interface GigabitEthernet7.3
 encapsulation isl 3
 no ip redirects
 no ip directed-broadcast
 bridge-group 3 spanning-disabled
!
interface GigabitEthernet8
 no ip address
 no ip directed-broadcast
!
interface GigabitEthernet8.1
 encapsulation isl 1
 no ip redirects
 no ip directed-broadcast
 bridge-group 1 spanning-disabled
!
interface GigabitEthernet8.2
 encapsulation isl 2
 no ip redirects
 no ip directed-broadcast
 bridge-group 2 spanning-disabled
!
interface GigabitEthernet8.3
 encapsulation isl 3
 no ip redirects
 no ip directed-broadcast
 bridge-group 3 spanning-disabled
!
interface BVI1
 ip address 10.1.1.1 255.255.0.0
 no ip redirects
 no ip directed-broadcast
 no ip route-cache cef
!
interface BVI2
 ip address 10.2.1.1 255.255.255.0
 no ip redirects
 no ip directed-broadcast
 no ip route-cache cef
!
interface BVI3
 ip address 10.3.1.1 255.255.0.0
 no ip redirects
 ip directed-broadcast
 no ip route-cache cef
 ipx network C21193 encapsulation SAP
 ipx network C31193 encapsulation NOVELL-ETHER secondary
!
router rip
 network 10.0.0.0
!
ip classless
!
snmp-server community public RO
snmp-server community private RW
!
bridge 1 protocol ieee
 bridge 1 route ip
bridge 2 protocol ieee
 bridge 2 route ip
bridge 3 protocol ieee
 bridge

How to prevent BRI 2nd channel from coming up ???

[kenny wong]

Hi all , 
There are 2 routers dialing to a single router's BRI
line.
The question is , WHen one of the dialing router call
the answering router , how to prevent the answering
router from activating both B channel of the BRI line
?

In the case of both line down , i need the 2 dialing
router to dial to the answering router.Each one use 1
b channel .
Please help.

tks
kenairs

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How to prevent BRI 2nd channel from coming up ???

[kenny wong]

Hi all , 
There are 2 routers dialing to a single router's BRI
line.
The question is , WHen one of the dialing router call
the answering router , how to prevent the answering
router from activating both B channel of the BRI line
?

In the case of both line down , i need the 2 dialing
router to dial to the answering router.Each one use 1
b channel .
Please help.

tks
kenairs

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RE: PIX VPN IP Pool

[Christopher Larson]

no. Longest match wins. If the client does not find an address match longer
then 0.0.0.0 then it will use the wildcard.

-Original Message-
From: Allen May [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 05, 2001 4:06 PM
To: Christopher Larson; [EMAIL PROTECTED]
Subject: Re: PIX VPN IP Pool


On the isakmp key  address  netmask  command I
don't see how to specify differently for VPN clients.  I have one key with
the IPSec peer on the PIX-PIX vpn using a /32 subnet but if I specify
0.0.0.0 netmask 0.0.0.0 for the VPN clients, won't this interfere?

- Original Message -
From: "Christopher Larson" <[EMAIL PROTECTED]>
To: "'Allen May'" <[EMAIL PROTECTED]>; "Christopher Larson"
<[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Friday, February 02, 2001 11:02 AM
Subject: RE: PIX VPN IP Pool


> Oh, in my experience all your IKE mode config clients would have to have
the
> same security policies. You would base your IPSEC lists on the IP address
> assigned to them from the pool.
>
> -Original Message-
> From: Allen May [mailto:[EMAIL PROTECTED]]
> Sent: Friday, February 02, 2001 11:05 AM
> To: Christopher Larson; [EMAIL PROTECTED]
> Subject: Re: PIX VPN IP Pool
>
>
> THATS what I meant to say ;)  I was wondering how the damn pool worked and
> how you'd be able to differentiate the ACLs by IP.
>
> - Original Message -
> From: "Christopher Larson" <[EMAIL PROTECTED]>
> To: "'Allen May'" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> Sent: Friday, February 02, 2001 6:45 AM
> Subject: RE: PIX VPN IP Pool
>
>
> > This should not interfere with your other VPN's. It will simply allow
the
> > Client to get an address from the pool. What I haven't figured out yet
is
> if
> > there is a way to seperate IKE mode configed clients so that each group
of
> > clients would have a different security policy. They have to get all
their
> > addresses from the same pool, and there is no way to differentiate
pools,
> or
> > sets of clients so it seems to me that when using IKE mode config that
you
> > can only do it for a set of clients that will share the same security
> > policy.
> >
> >
> > Have you or anyone seen any way to do this using IKE mode config?
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > -Original Message-
> > From: Allen May [mailto:[EMAIL PROTECTED]]
> > Sent: Thursday, February 01, 2001 2:41 PM
> > To: [EMAIL PROTECTED]
> > Subject: PIX VPN IP Pool
> >
> >
> > OK I get all the VPN stuff for IPSec.  I have a working PIX-PIX VPN
> working
> > right now and am in the process of implementing CiscoSecure to PIX VPN.
I
> > haven't implemented it quite yet because I"m worried about a possible
> > conflict here.
> >
> > Configuring IKE Mode Config parameters calls for the following:
> > ip local pool (pool-name) ip-range
> > isakmp cilent cnofiguration address-pool local (pool-name) outside
> > crypto map (crypto-map-name) client configuration address initiate
> >
> > The first 2 lines have a common pool-name but have no places in there to
> > match it to previous commands set up for the specific VPN.  All others
in
> my
> > config have some reference either by a name or a number in the command.
> >
> > The 3rd line also has no reference whatsoever to which VPN this should
> > apply.  There are no similar commands for the PIX-PIX vpn but I'm
> wondering
> > if this will somehow interfere or am I just being overly cautious here?
> >
> > Allen May
> >
> > _
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> >
> > _
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> >
>
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>

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RE: Cisco Perl Scripts

[Christopher Larson]

You might start with MRTG. It is free and is used to get snmp data from
devices through Perl and timer events. I am sure the Perl Script could be
modified to meet your needs, and you may be able to write the parameters
using SNMP through the web page MRTG creates.
This will probably cut your work in 1/2 if not more as MRTG dynamically
creates the web pages and graphs the snmp statistics on the page. Adding a
few buttos that submit snmp writes is all you would need to do. 



http://ee-staff.ethz.ch/~oetiker/webtools/mrtg/mrtg.html



-Original Message-
From: Nabil Fares [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 05, 2001 5:37 PM
To: [EMAIL PROTECTED]
Subject: Cisco Perl Scripts


Greetings all,

I'm trying to locate a Perl script to manage Cisco switches.  Would like to
build a web page as a the front-end for the script.  This script would allow
someone to select a switch, port number and speed/duplex.  Upon execution,
the script would telnet to the switch and update the changes.  Our switch
admin gets a lot of requests during the day, just want to make his life
little easier.  Just in case you wonder why not Ciscoworks, can't justify
the cost yet.


Thanks,

Nabil


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RE: ISDN Dialup Backup

[Mustafa Kemal Furat]

You can run cdp on bothsides (do not forget to add cdp protocol in dialer
list) 
this may be the least risky way of teting the ISDN line 
Gugana


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 05, 2001 11:57 PM
To: [EMAIL PROTECTED]
Subject: ISDN Dialup Backup


We use floating static routes rather than dial backup, but here's one way
of doing it...
Remove the dial backup command.
Add a static IP route to a network that doesn't exist in your routing
table.  Make sure it's a network that you don't need to be able to connect
to, at least temporarily (this obviously may be tricky if you use default
routes and your users may need to connect to any network), or make the
static route for the address of the dialer interface at the other end.
Point the static route at the dialer interface (not the address, the
interface).  E.g.ip route 1.2.3.0 255.255.255.0 dialer1

Ping the address of your route - e.g 1.2.3.4 for the above route.  If
you've used a 'fake' address, the ping won't work, but it should bring up
the ISDN link anyway.

This is just basic routing stuff, so I assume it would work with 12.1.

JMcL
-- Forwarded by Jenny Mcleod/NSO/CSDA on 06/02/2001
08:44 am ---


Elijah Savage <[EMAIL PROTECTED]>@groupstudy.com on 05/02/2001
12:53:32 pm

Please respond to Elijah Savage <[EMAIL PROTECTED]>

Sent by:  [EMAIL PROTECTED]



To:   "Cisco (E-mail)" <[EMAIL PROTECTED]>
cc:


Subject:  ISDN Dialup Backup


I support allot of customers with dedicated t1's and using isdn dialup
backup. I have had some customers that want to test the dialup backup
without taking the serial link down. I have noticed that on version 12.0 of
the IOS you can take the dial backup command off the interface and ping the
other side of the isdn link and make it come up and dial, this is great for
not having a customer experience any down time. Well I was working on a
1720
on Friday with IOS 12.1 and this does not work. You actually have to take
the serial link down to make the isdn dial. This is very inconvenient when
you are setting up a new customer and you do not know if the isdn line is
in
place. Especially when setting up customers in Texas it seems like it takes
an act of god to have someone at the phone company give you the right
spids.
I guess my question is this, does anyone know if this was a feature Cisco
had in IOS 12.0 and removed it from later versions or if this was a bug in
the 12.0 IOS. I have another engineer at work that swares it is a bug to be
able to take the dial backup command off and make the link dial up.

Any ideas?
Or any other ways I am overlooking in making the backup link come up
without
having to take a customer down?

Elijah

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Can this be summarised on the ACL?

[Deloso, Elmer G (WPNSTA Yorktown)]

Hi,group.
I'd like to verify if there is a way to define a mask to summarise this.
Basically, i'd like to be able to summarise range 172.18.0.0 to 172.31.0.0
with
a mask so I'll have one entry on the access-list. I can see doing a
172.16.0.0
0.0.15.255, however i want to EXCLUDE 172.17.0.0 networks. 
If this is not possible, perhaps I should just put a permit 172.17.0.0 prior
to deny 172.16.0.0 0.0.15.255??
Thanks for the replies.

Elmer Deloso

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RE: Can this be summarised on the ACL?

[Mustafa Kemal Furat]

no .. you should swap the network adresses  :)

-Original Message-
From: Deloso, Elmer G (WPNSTA Yorktown) [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 2:55 PM
To: '[EMAIL PROTECTED]'
Subject: Can this be summarised on the ACL?


Hi,group.
I'd like to verify if there is a way to define a mask to summarise this.
Basically, i'd like to be able to summarise range 172.18.0.0 to 172.31.0.0
with
a mask so I'll have one entry on the access-list. I can see doing a
172.16.0.0
0.0.15.255, however i want to EXCLUDE 172.17.0.0 networks. 
If this is not possible, perhaps I should just put a permit 172.17.0.0 prior
to deny 172.16.0.0 0.0.15.255??
Thanks for the replies.

Elmer Deloso

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2924 power connections

[SGressel]

Since the 2924 has only 1 powersupply, is it possible to run a Y power cord
to  2 APC'S ??

Shawn

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E&M TYPE 5

[Clare, Charles]

I have an interesting issue with E&M type 5, 4 Wire, Immediate Start,
signalling.

NEC 7660 PABX connect 4 E&M Ports to 3662 router with NM-2V with 2 E&M
Cards.

E&M signalling not reliable.

If I replace 3662 with MC3810 with 4 E&M Interfaces all works well
If I replace 3662 with 1750-4V with 2 E&M Cards all works well
If I replace 3662 with 2621 with NM-2V with 2 E&M cards performs like 3662.

When I say not reliable router will only answer a call in E&M 50% of the
time and require E&M to be hung up for 5 Seconds before another call attempt
can be made.


Seen this type of response ?

Running 12.1(5)T  


Charles

CCNP-Voice,CCDP,MCSE+I


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VPN 3015 using Windows 2000 Domain Authentication

[Adam]

Has anyone out there successfully implemented external domain authentication
with the Cisco 3015 Concentrator on a Windows 2000 Domain Controller.  The
documentation out there does really focus on a "2000" domain authentication.

Any pointers would be appreciated.


Adam


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Lab Swap

[Timothy Gray]

I am looking to trade a March 19th lab date in San Jose for anywhere on
March 29th or 30th.

Please e-mail me if you want to swap.

Thanks.

[EMAIL PROTECTED]

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Spanning Tree Question - Root Port Selection

[Miller, Nathan - BSC]

I have been looking for a while for further documentation of the process by
which a switch selects its root port.  Most of the books that I have
searched for this information say something similar to the following quote
from a CCO page: "A bridge's root port is the port through which the root
bridge can be reached with the least aggregate path cost, a value that is
called the root path cost."  My problem is that they all seem to stop there.
My question is this.  If the root path cost is the same on multiple switch
ports, how does STA determine which is the root port?  Does it follow the
same course as it would when selecting a designated port (root bridge, root
path cost, sender ID, sender port). 
Many thanks for your thoughts.
Nathan Miller

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MLS Question

[Miller, Nathan - BSC]

If a MLS destination IP flow is established by a TCP packet from one host to
another does the return packet establish a second flow, individually defined
in the MLS cache, or does the MLS process recognize the return packet as
part of the first flow switch it based on the original MLS cache entry.  In
looking for answers to this question we have found conflicting
documentation.  Some indicates that a new flow is established and other
docs indicate that the frame is switched per the original entry.  
Thanks in advance for your thoughts.

Nathan Miller

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RE: Spanning Tree Question - Root Port Selection

[Roan, Wayne]

I think one of the factors is the port priority.  Three factors that
influence Root bridge port selection are: port cost, path to the root, and
port priority.  I think the only one you can change is port priority.  This
can be set for different values depending on the type of switch you are
running.

-Original Message-
From: Miller, Nathan - BSC [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 9:09 AM
To: [EMAIL PROTECTED]
Subject: Spanning Tree Question - Root Port Selection


I have been looking for a while for further documentation of the process by
which a switch selects its root port.  Most of the books that I have
searched for this information say something similar to the following quote
from a CCO page: "A bridge's root port is the port through which the root
bridge can be reached with the least aggregate path cost, a value that is
called the root path cost."  My problem is that they all seem to stop there.
My question is this.  If the root path cost is the same on multiple switch
ports, how does STA determine which is the root port?  Does it follow the
same course as it would when selecting a designated port (root bridge, root
path cost, sender ID, sender port). 
Many thanks for your thoughts.
Nathan Miller

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Re: Exam Number: 640-503

[GNOME]

Fully agreed


John Neiberger <[EMAIL PROTECTED]> wrote in message
24245735.981392206965.JavaMail.imail@slippery">news:24245735.981392206965.JavaMail.imail@slippery...
> I wholeheartedly recommend the Ciscopress BSCN study guide.  It covers 95%
> of what you'll see on the test.  Another excellent book for this test--and
> one that you should own anyway--is Routing TCP/IP by Jeff Doyle.  Among
> other things, it covers EIGRP and OSPF very well.
>
> I also found Bridges, Routers, and Switches for CCIE's by Andrew Bruce
> Caslow helpful for understanding OSPF in NBMA environments.  Heck, it
helped
> me understand NBMA, period!  :-)
>
> For additional BGP study, pick up the 2nd edition of Internet Routing
> Architectures.
>
> Actually, now that I think about it, you should own all of the above
books,
> so go buy all of them .  Those last three books will more than pay for
> themselves in the long run.
>
> If you're only going to get one study guide for this test, though, the
> Ciscopress study guide might be the way to go.
>
> HTH,
> John
>
> >  Can anyone recommend a couple of good book for the Routing exam
640-503?
> >
> >  Thanks,
> >  Mike
> >
> >  _
> >  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: Spanning Tree Question - Root Port Selection

[Daniel Cotts]

Yes. The same decision tree is used.
A great explanation is in "Cisco LAN Switching" by Clark and Hamilton. Cisco
Press

> -Original Message-
> From: Miller, Nathan - BSC [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 06, 2001 8:09 AM
> To: [EMAIL PROTECTED]
> Subject: Spanning Tree Question - Root Port Selection
> 
> 
> I have been looking for a while for further documentation of 
> the process by
> which a switch selects its root port.  Most of the books that I have
> searched for this information say something similar to the 
> following quote
> from a CCO page: "A bridge's root port is the port through 
> which the root
> bridge can be reached with the least aggregate path cost, a 
> value that is
> called the root path cost."  My problem is that they all seem 
> to stop there.
> My question is this.  If the root path cost is the same on 
> multiple switch
> ports, how does STA determine which is the root port?  Does 
> it follow the
> same course as it would when selecting a designated port 
> (root bridge, root
> path cost, sender ID, sender port). 
> Many thanks for your thoughts.
> Nathan Miller
> 
> _
> 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: MLS Question

[Daniel Cotts]

One flow in each direction. See the book ...

> -Original Message-
> From: Miller, Nathan - BSC [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 06, 2001 8:15 AM
> To: [EMAIL PROTECTED]
> Subject: MLS Question
> 
> 
> If a MLS destination IP flow is established by a TCP packet 
> from one host to
> another does the return packet establish a second flow, 
> individually defined
> in the MLS cache, or does the MLS process recognize the 
> return packet as
> part of the first flow switch it based on the original MLS 
> cache entry.  In
> looking for answers to this question we have found conflicting
> documentation.  Some indicates that a new flow is established 
> and other
> docs indicate that the frame is switched per the original entry.  
> Thanks in advance for your thoughts.
> 
> Nathan Miller
> 
> _
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> http://www.groupstudy.com/list/cisco.html
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RE: VLANs on Catalyst 1900 Switches

[dave . goldsmith]

Tom,

That was it.  The Cat1900 with the 9.00.04 Enterprise edition s/w now has
the vlan options available now.  The Cat1900 with the 8.01.00 s/w does not.
The Cat1900s used in the CCNA course my coworker just took had 8.01.07
loaded so 8.01.00 may not support VLANs ... I'll just put the 9.00.04 code
on it.

Thanks,

Dave Goldsmith

-Original Message-
From: Tom Lisa [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 05, 2001 8:10 PM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: VLANs on Catalyst 1900 Switches


Dave,

It sounds like your switches are configured for bridge groups rather than
VLANS.  This
can be reset by going to the Main Menu and selecting S (System Sub-Menu).
Then select
option T (Reset to VLANS) to enable VLAN configuration.  Option T changes to
Reset to
Bridge Groups when VLANS are enabled.

HTH,
Tom Lisa, Instructor, CCNA, CCAI
Community College of Southern Nevada
Cisco Regional Networking Academy

[EMAIL PROTECTED] wrote:

> I have 2 Cat1900 switches (WS-1912-A).  One has the 8.01.00 Standard
Edition
> loaded and the other has the 9.00.04 Enterprise Edition loaded.  On
neither
> of them are any of the VLAN commands available.
>
> The Cisco ICND book covers VLANs on Cat1900 switches and a co-worker just
> attended a GlobalKnowledge CCNA Boot Camp where they did configure VLANs
on
> Cat1900s (with version 8.xx loaded).
>
> In addition to the software version, is there a hardware issue?  Do some
> Cat1900s not support VLANs?
>
> Dave Goldsmith

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RE: Spanning Tree Question - Root Port Selection

[Jim Dixon]

Hi Nathan,

Have you read Radia Perlman's Interconnections.  There are two.
The second edition I believe is the latest.
She wrote spanning tree.  This book does cover it in detail.
ISBN# 0201634481 

At the time I looked Amazon had a used one in GOOD condition for 15 bucks.
(FYI)


-Original Message-
From: Miller, Nathan - BSC [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 8:09 AM
To: [EMAIL PROTECTED]
Subject: Spanning Tree Question - Root Port Selection


I have been looking for a while for further documentation of the process by
which a switch selects its root port.  Most of the books that I have
searched for this information say something similar to the following quote
from a CCO page: "A bridge's root port is the port through which the root
bridge can be reached with the least aggregate path cost, a value that is
called the root path cost."  My problem is that they all seem to stop there.
My question is this.  If the root path cost is the same on multiple switch
ports, how does STA determine which is the root port?  Does it follow the
same course as it would when selecting a designated port (root bridge, root
path cost, sender ID, sender port). 
Many thanks for your thoughts.
Nathan Miller

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NM-1E2W Module

[Warrick FitzGerald]

Hi,

I have a 2600 cisco router and would like to purchase another ethernet
interface for the unit. I can find plety of  NM-1E2W modules for sale, but
the description next to the item always says that it is for a 3600 router,
can anyone tell me if this module will work in a 2600 and if so how would I
have figured this out myself ?

Thanks
Warrick FitzGerald
LiveTechnology International Inc.




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Cisco 12008 GSR for sale

[West, Karl]

My company has 2 Cisco 12008 GSR's for sale. It's out of the box but never
used. I have not list the detail here, reply to me if anyone is interested.
We also have a Cisco 7513 chassis with out VIP's with 2 RSP.  Let me know!

Karl

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RE: NM-1E2W Module

[Evan Francen]

The 2600 series routers do not support the NM-1E2W module.  You can check
the supported modules at
http://www.cisco.com/univercd/cc/td/doc/pcat/2600.htm.

HTH,
Evan

-Original Message-
From: Warrick FitzGerald [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 9:03 AM
To: [EMAIL PROTECTED]
Subject: NM-1E2W Module


Hi,

I have a 2600 cisco router and would like to purchase another ethernet
interface for the unit. I can find plety of  NM-1E2W modules for sale, but
the description next to the item always says that it is for a 3600 router,
can anyone tell me if this module will work in a 2600 and if so how would I
have figured this out myself ?

Thanks
Warrick FitzGerald
LiveTechnology International Inc.




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Re: Can this be summarised on the ACL?

[John Neiberger]

Your last idea is correct.  You can't accomplish both goals in a single
line.  Place a specific deny statement at the beginning, followed by the
summarized permit statement.

John

>  Hi,group.
>  I'd like to verify if there is a way to define a mask to summarise this.
>  Basically, i'd like to be able to summarise range 172.18.0.0 to
172.31.0.0
>  with
>  a mask so I'll have one entry on the access-list. I can see doing a
>  172.16.0.0
>  0.0.15.255, however i want to EXCLUDE 172.17.0.0 networks. 
>  If this is not possible, perhaps I should just put a permit 172.17.0.0
prior
>  to deny 172.16.0.0 0.0.15.255??
>  Thanks for the replies.
>  
>  Elmer Deloso
>  
>  _
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Re: Another 802.3 and Ethernet Question

[John Neiberger]

Thanks!  I had just never stopped to think too deeply about *why* different
network-layer protocols would pick one ethernet frame type over another.  

John

>  At 07:38 AM 2/5/01, John Neiberger wrote:
>  >While studying for CIT, I noticed something that had never occurred to
me
>  >before.  The default ethernet frame type on a Cisco router is
Ethernet_II,
>  
>  The default frame type depends on the payload.
>  
>  The default for IP is Ethernet V2 because the IP industry never adopted 
>  anything newer at the data-link layer. (They did adopt new physical-layer

>  IEEE 802.3 standards.) Ethernet V2 has dest, source, and EtherType. If
you 
>  were to change the frame type on the routers, you would have to change it

>  on all IP hosts too, which would be a pain. Most operating systems
(Windows 
>  9x, Window NT, SunOS, Mac OS, etc.) default to Ethernet V2 for IP also.
>  
>  If you use AppleTalk Phase 2, the default frame type is 802.3 with 802.2 
>  and SNAP. That's because all Macintoshes and other AppleTalk devices 
>  default to that frame type for AppleTalk also. (Phase 1 was Ethernet V2,
by 
>  the way.)
>  
>  If you use Novell, the default is Novell "raw," aka Ethernet_802.3 which 
>  has dest, source, length, immediately followed by the IPX header which 
>  starts with an XNS checksum, which isn't used so it's always .
>  
>  The Novell default may have changed. I know Novell has been wanting to
get 
>  with the rest of the world, plus they have been talking about actually 
>  using the checksum, which means they can't use the raw format. Also the
raw 
>  format is kind of ugly because a "raw" frame arrives at a station 
>  configured for 802.3 with 802.2, the  looks like a global LLC (802.2)

>  SAP, which means "give this frame to all services!.
>  
>  Priscilla
>  
>  >but the only physical interface specified by Ethernet version 2 is
50-ohm
>  >coax, IIRC, similar to 10base5  On 10baseT or 100baseTX interfaces,
which
>  >are on every router I've ever worked with, why is the default frame type
not
>  >IEEE 802.3?
>  >
>  >Ethernet_II only has a type field, while IEEE 802.3 frames include 802.2
>  >information.  What sorts of functionality would be available through the
use
>  >of that frame type that are not available with Ethernet_II?
>  >
>  >In IP-only environments, would there be a good reason to change to a
>  >different frame type, or would we only benefit from a different frame
type
>  >in a non-IP environment or mixed environment?
>  >
>  >Thanks,
>  >John
>  >
>  >
>  >
>  >
>  >
>  >___
>  >Send a cool gift with your E-Card
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>  >
>  >
>  >_
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>  
>  
>  
>  
>  Priscilla Oppenheimer
>  http://www.priscilla.com
>





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Intermittent ping

[Alex Boh]

Hi everyone,
Hope someone can enlighten me on the preceding issue. Recently I
acquired a 512Kb lease line point-to-point connection. When I ping from my
PC to cisco.com (c>ping 198.133.219.25 -t), I got reply and some "request
time out", Is this a normal symptom?

Pinging cisco.com [198.133.219.25] with 32 bytes of data:

Reply from 198.133.219.25: bytes=32 time=1778ms TTL=244
Request timed out.
Reply from 198.133.219.25: bytes=32 time=1878ms TTL=244
Request timed out.
Reply from 198.133.219.25: bytes=32 time=1661ms TTL=244
Reply from 198.133.219.25: bytes=32 time=2091ms TTL=244
Reply from 198.133.219.25: bytes=32 time=1801ms TTL=244
Request timed out.
Reply from 198.133.219.25: bytes=32 time=2056ms TTL=244
Reply from 198.133.219.25: bytes=32 time=1977ms TTL=244
Reply from 198.133.219.25: bytes=32 time=1890ms TTL=244





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Re: CID beta results

[Steven Crawford]

When I took my test, the final screen said 8 weeks, so we should have our 
results this week.  Galton does not have them yet, but they should be up by 
Friday if they are going to be 8 weeks.
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Proxy services question

[Hunt Lee]

I have two questions from COLT that I don't understand.  Any help is
greatly appreciated.
 

Q1)    Why should you implement proxy services on a Cisco Network?

A)    to provide a basic level of security

B)    to provide resource discovery on serverless LANs

C)    to protect the integrity of network data traveling between peers.

D)    to manage the varying demands applications put on the network.

I thought the answer is B, but the answer is A.
 

Q2)    Which two types of networks in CiscoWorks Blue designed to
manage?

A)    Small business networks, complex LAN switched networks

B)    Data link switching networks, advanced peer-to-peer networks

C)    Remote source-route bridging networks, complex LAN switched
networks.

D)    Complex LAN switched networks, Microsoft Windows NT based
networks.

I thought the answer is C, but the answer is B.
 

Regards,
Hunt Lee
IP Solution Analyst
Cable and Wireless (Sydney)

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Converting OSPF Type 5 LSA E2 to E1

[FREDL L AZARES]

I login the Cisco.com CCO and could not find anything on converting OSPF
Type 5 LSA E2 to E1.

Fred

GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today!  For your FREE software, visit:
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Re: NM-1E2W Module

[Mihai Dumitru]

Generally, the network modules for the 2600 and 3600 series are
interchangeable.  However, NM-1E2W is not supported on Cisco 2600. See
http://www.cisco.com/univercd/cc/td/doc/pcat/mxne__p1.htm


Warrick FitzGerald wrote:
> 
> Hi,
> 
> I have a 2600 cisco router and would like to purchase another ethernet
> interface for the unit. I can find plety of  NM-1E2W modules for sale, but
> the description next to the item always says that it is for a 3600 router,
> can anyone tell me if this module will work in a 2600 and if so how would I
> have figured this out myself ?
> 
> Thanks
> Warrick FitzGerald
> LiveTechnology International Inc.
> 
> _
> FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

-- 


Mihai Dumitru
Systems Engineer, ROMSYS SA

tel: +40 1 2300810, mobile: +40 92 764287
fax: +40 1 2300815

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RE: NM-1E2W Module

[Samuel Chen]

NO, you need NM-1E or NM-4E

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Warrick FitzGerald
Sent: Tuesday, February 06, 2001 10:03 AM
To: [EMAIL PROTECTED]
Subject: NM-1E2W Module


Hi,

I have a 2600 cisco router and would like to purchase another ethernet
interface for the unit. I can find plety of  NM-1E2W modules for sale, but
the description next to the item always says that it is for a 3600 router,
can anyone tell me if this module will work in a 2600 and if so how would I
have figured this out myself ?

Thanks
Warrick FitzGerald
LiveTechnology International Inc.




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Show Router Model

[Liwanag, Manolito]

Hi guys,

Can anyone tell me how to tell what model router you have from CLI ? I am
trying to figure out what model we have in a few branches remotely (through
telnet) but my brain is frozen.  I can't recall the command.  Can any one
help ?

I tried doing a sh tech but the info was flying by. How do I slow that info
down ?

Thank you in advanced.

rgds,
Manolito 

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RE: Another 802.3 and Ethernet Question

[Leigh Anne Chisholm]

John,

What's the purpose of a default frame type?  In IPX?  What does the router
do with other frame types not specified?

Now what about with IP?  What's the purpose of the default frame type?  What
does the router do with other frame types not explicitly specified?


  -- Leigh Anne


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Priscilla Oppenheimer
Sent: February 5, 2001 2:03 PM
To: John Neiberger; [EMAIL PROTECTED]
Subject: Re: Another 802.3 and Ethernet Question


At 07:38 AM 2/5/01, John Neiberger wrote:
>While studying for CIT, I noticed something that had never occurred to me
>before.  The default ethernet frame type on a Cisco router is Ethernet_II,

The default frame type depends on the payload.

The default for IP is Ethernet V2 because the IP industry never adopted
anything newer at the data-link layer. (They did adopt new physical-layer
IEEE 802.3 standards.) Ethernet V2 has dest, source, and EtherType. If you
were to change the frame type on the routers, you would have to change it
on all IP hosts too, which would be a pain. Most operating systems (Windows
9x, Window NT, SunOS, Mac OS, etc.) default to Ethernet V2 for IP also.

If you use AppleTalk Phase 2, the default frame type is 802.3 with 802.2
and SNAP. That's because all Macintoshes and other AppleTalk devices
default to that frame type for AppleTalk also. (Phase 1 was Ethernet V2, by
the way.)

If you use Novell, the default is Novell "raw," aka Ethernet_802.3 which
has dest, source, length, immediately followed by the IPX header which
starts with an XNS checksum, which isn't used so it's always .

The Novell default may have changed. I know Novell has been wanting to get
with the rest of the world, plus they have been talking about actually
using the checksum, which means they can't use the raw format. Also the raw
format is kind of ugly because a "raw" frame arrives at a station
configured for 802.3 with 802.2, the  looks like a global LLC (802.2)
SAP, which means "give this frame to all services!.

Priscilla

>but the only physical interface specified by Ethernet version 2 is 50-ohm
>coax, IIRC, similar to 10base5  On 10baseT or 100baseTX interfaces, which
>are on every router I've ever worked with, why is the default frame type
not
>IEEE 802.3?
>
>Ethernet_II only has a type field, while IEEE 802.3 frames include 802.2
>information.  What sorts of functionality would be available through the
use
>of that frame type that are not available with Ethernet_II?
>
>In IP-only environments, would there be a good reason to change to a
>different frame type, or would we only benefit from a different frame type
>in a non-IP environment or mixed environment?
>
>Thanks,
>John
>
>
>
>
>
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RE: Merging two companies

[Rodney Jackson]

Our routers can't determine if the traffic is local or remote.  So traffic destine for 
the new company is never sent because the routers believe it's locale.  I don't see 
how NAT would help.

-Original Message-
From: Santosh Koshy [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 05, 2001 9:22 PM
To: [EMAIL PROTECTED]
Subject: Re: Merging two companies


I've never done this myself...
But I do not see a reason why you cannot use NAT overloading to do the
job
10.10.10.x<--->Real IP<===>Real IP <--> 10.10.10.x

Please correct me if I am wrong


""Rodney Jackson"" <[EMAIL PROTECTED]> wrote in message
95nrbr$u2l$[EMAIL PROTECTED]">news:95nrbr$u2l$[EMAIL PROTECTED]...
> Guys,
>
> We are merging with another company and plan to connect the two networks
via
> DS3 but in the short term VPN.  The problem is we both use the same
private
> IP ranges.  Is there anyone out there that has gone through this before
and
> would you provide tips or information where I can get a white paper.
>
>
> _
> 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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Off Topic - Routers for sale

[Luke Ellezer]

2503 - 1 Ether, 2 Serial, 1 BRI, 16/16  1 DTE-DCE
cable, 1 NT1 - asking $900.00 or make a decent offer 

2513 - 1 Ether, 1 Token, 2 Serial, 16/16, 1 DTE-DCE
cable, 1 NT1 - asking $1100.00
or make a decent offer 

both routers have 12.09T enterprise images.  Both have
NT1s for ISDN connectivity.  




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Re: Converting OSPF Type 5 LSA E2 to E1

[Curtis Call]

How about:
router ospf 
  redistribute  metric  metric-type <1 or 2> subnets
  network x.x.x.x x.x.x.x area 0
  etc

That would be put on the ASBR.

At 07:43 AM 2/6/01 -0800, you wrote:
>I login the Cisco.com CCO and could not find anything on converting OSPF
>Type 5 LSA E2 to E1.
>
>Fred
>
>GET INTERNET ACCESS FROM JUNO!
>Juno offers FREE or PREMIUM Internet access for less!
>Join Juno today!  For your FREE software, visit:
>http://dl.www.juno.com/get/tagj.
>
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RE: Intermittent ping

[Evan Francen]

All of your times are slow.  1891ms ave., with 3 timeouts/11 echoes.  This
could be due to alot of different things, check times from your router to
your ISP router, then continue checking routers from there.  A trace would
give your more information on where the latency is occurring.

These are my ping times:

Pinging 198.133.219.25 with 32 bytes of data:

Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
Reply from 198.133.219.25: bytes=32 time=61ms TTL=246
Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
Reply from 198.133.219.25: bytes=32 time=60ms TTL=246

Ping statistics for 198.133.219.25:
Packets: Sent = 7, Received = 7, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 60ms, Maximum =  61ms, Average =  60ms

So, to answer your question, no this is not a normal symptom, and you will
have to employ some troubleshooting to find out where/what the problem is.

HTH,
Evan

-Original Message-
From: Alex Boh [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 9:15 AM
To: [EMAIL PROTECTED]
Subject: Intermittent ping


Hi everyone,
Hope someone can enlighten me on the preceding issue. Recently I
acquired a 512Kb lease line point-to-point connection. When I ping from my
PC to cisco.com (c>ping 198.133.219.25 -t), I got reply and some "request
time out", Is this a normal symptom?

Pinging cisco.com [198.133.219.25] with 32 bytes of data:

Reply from 198.133.219.25: bytes=32 time=1778ms TTL=244
Request timed out.
Reply from 198.133.219.25: bytes=32 time=1878ms TTL=244
Request timed out.
Reply from 198.133.219.25: bytes=32 time=1661ms TTL=244
Reply from 198.133.219.25: bytes=32 time=2091ms TTL=244
Reply from 198.133.219.25: bytes=32 time=1801ms TTL=244
Request timed out.
Reply from 198.133.219.25: bytes=32 time=2056ms TTL=244
Reply from 198.133.219.25: bytes=32 time=1977ms TTL=244
Reply from 198.133.219.25: bytes=32 time=1890ms TTL=244





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RE: Show Router Model

[Evan Francen]

show version, or show hardware, it will give you the base router model.
Then you can determine from the interfaces installed, what router you have.

Evan

-Original Message-
From: Liwanag, Manolito [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 9:51 AM
To: 'Cisco Group Study'
Subject: Show Router Model



Hi guys,

Can anyone tell me how to tell what model router you have from CLI ? I am
trying to figure out what model we have in a few branches remotely (through
telnet) but my brain is frozen.  I can't recall the command.  Can any one
help ?

I tried doing a sh tech but the info was flying by. How do I slow that info
down ?

Thank you in advanced.

rgds,
Manolito 

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RE: Merging two companies

[mjans001]

Why don't you combine nat with 2 or 3 extra IP's in a dmz.

The road from 1 to 2 would look like this.

c1  NAT--FW-- vpn --FW--dmz- IP1 / ip2 / ip3 -dmz--- nat --- c2

10.x packet dest ip1/2/3 say 25.x
>
25.x server maps share/port/server to internal ip 10.x


The dmz ip's can map internal c2 servers with shares, caching /forwarding
mail servers etc.

Just a braindunp, maybe tunable. #;-)

Cheers, Martijn

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Re: Intermittent ping

[Andy]

It appears there is some pretty mean congestion somewhere in the path 
looking at the pings and its causing some packet loss. Notice the
extremely high ping times. I would first do a traceroute to www.cisco.com
and see if you can find a congested point along the path and call your
service provider about it. Also check your connectivity to other sites to
isolate the problem more. 

andy

On Tue, 6 Feb 2001, Alex Boh wrote:

> Hi everyone,
> Hope someone can enlighten me on the preceding issue. Recently I
> acquired a 512Kb lease line point-to-point connection. When I ping from my
> PC to cisco.com (c>ping 198.133.219.25 -t), I got reply and some "request
> time out", Is this a normal symptom?
> 
> Pinging cisco.com [198.133.219.25] with 32 bytes of data:
> 
> Reply from 198.133.219.25: bytes=32 time=1778ms TTL=244
> Request timed out.
> Reply from 198.133.219.25: bytes=32 time=1878ms TTL=244
> Request timed out.
> Reply from 198.133.219.25: bytes=32 time=1661ms TTL=244
> Reply from 198.133.219.25: bytes=32 time=2091ms TTL=244
> Reply from 198.133.219.25: bytes=32 time=1801ms TTL=244
> Request timed out.
> Reply from 198.133.219.25: bytes=32 time=2056ms TTL=244
> Reply from 198.133.219.25: bytes=32 time=1977ms TTL=244
> Reply from 198.133.219.25: bytes=32 time=1890ms TTL=244
> 
> 
> 
> 
> 
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RE: Merging two companies

[John Neiberger]

To pull this off, you need to do NAT on both sides, so that both 10.0.0.0
networks appear to be something else to the other network.  Your specific
implementation would depend on how many hosts need to communicate across
this connection.  Here is an example, and I think it is what the previous
poster was referring to:

10.0.0.0 <-NAT to 172.16.0.0-> ---WAN---  10.0.0.0

So, the 10/8 network on the left appears as 172.16/16 to the 10/8 network on
the right, and the one on the right appears as 172.17/16 to the one on the
left.

Depending on the type of traffic you have, this might be very easy to
implement, or it could cause yet more problems.  Still, from the sounds of
it this is an option worth investigating.

HTH,
John

>  Our routers can't determine if the traffic is local or remote.  So
traffic destine for the new company is never sent because the routers
believe it's locale.  I don't see how NAT would help.
>  
>  -Original Message-
>  From: Santosh Koshy [mailto:[EMAIL PROTECTED]]
>  Sent: Monday, February 05, 2001 9:22 PM
>  To: [EMAIL PROTECTED]
>  Subject: Re: Merging two companies
>  
>  
>  I've never done this myself...
>  But I do not see a reason why you cannot use NAT overloading to do the
>  job
>  10.10.10.x<--->Real IP<===>Real IP <-->
10.10.10.x
>  
>  Please correct me if I am wrong
>  
>  
>  ""Rodney Jackson"" <[EMAIL PROTECTED]> wrote in message
>  95nrbr$u2l$[EMAIL PROTECTED]">news:95nrbr$u2l$[EMAIL PROTECTED]...
>  > Guys,
>  >
>  > We are merging with another company and plan to connect the two
networks
>  via
>  > DS3 but in the short term VPN.  The problem is we both use the same
>  private
>  > IP ranges.  Is there anyone out there that has gone through this before
>  and
>  > would you provide tips or information where I can get a white paper.
>  >
>  >
>  > _
>  > 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: learning facilities

[suk Ciscostudy]

Hi

If I had to opt from the list, I would go for BCMSN, because what you gain 
from the class will be more in this courese. This involve concepts and 
technology which you need to understand, that agin will help in CIT exam.

BCRAN is the easiest exam of the group and for CIT one need to sit and 
study. This test involves more of commands, test equipments etc.,
one need to put in a lot of time in self study anyway.

This is my point of view.

Hope this helps.
Sukhesh
CCNP, MCSE, ASE




>From: "Lopez, Robert" <[EMAIL PROTECTED]>
>Reply-To: "Lopez, Robert" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: learning facilities
>Date: Mon, 5 Feb 2001 12:28:20 -0500
>
>Hello,
>
>If you were given the opportunity to choose your classes for BCMSN, BCRAN
>and CIT,  which training facility would rank at the top.  Which facility
>would be the second choice?  TIA
>
>Robert M. Lopez
>Network Planning
>Ann Arbor Data Center
>Pfizer Global Research & Development
>Phone 734-622-3948 Fax 734-622-1690
>
>
>
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RE: Merging two companies

[Tim Lovelace]

I did something similiar just this month. The way I did it was to setup
their new router that connected them with us with NAT. I assigned them a new
private range (say 172.16.1.x /24 ). Then used NAT overload so that all
traffic coming from them looked like it was from the 172.16.1.3 address that
was used as the overload. Then so we could access the servers that we needed
on their network I just added some static NAT entries with addresses like
172.16.1.5 and above. It works fine in the interm until we actually convert
them to be in a range we arent using.

Hope that helps some

Tim

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Rodney Jackson
Sent: Tuesday, February 06, 2001 9:43 AM
To: 'Santosh Koshy'; [EMAIL PROTECTED]
Subject: RE: Merging two companies


Our routers can't determine if the traffic is local or remote.  So traffic
destine for the new company is never sent because the routers believe it's
locale.  I don't see how NAT would help.

-Original Message-
From: Santosh Koshy [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 05, 2001 9:22 PM
To: [EMAIL PROTECTED]
Subject: Re: Merging two companies


I've never done this myself...
But I do not see a reason why you cannot use NAT overloading to do the
job
10.10.10.x<--->Real IP<===>Real IP <--> 10.10.10.x

Please correct me if I am wrong


""Rodney Jackson"" <[EMAIL PROTECTED]> wrote in message
95nrbr$u2l$[EMAIL PROTECTED]">news:95nrbr$u2l$[EMAIL PROTECTED]...
> Guys,
>
> We are merging with another company and plan to connect the two networks
via
> DS3 but in the short term VPN.  The problem is we both use the same
private
> IP ranges.  Is there anyone out there that has gone through this before
and
> would you provide tips or information where I can get a white paper.
>
>
> _
> 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: Intermittent ping

[Jim Dixon]

nitrous.digex.net
has several different sites that youcan 
do ping and traceroute from OUTSIDE your network back TO your network.


-Original Message-
From: Evan Francen [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 9:51 AM
To: 'Alex Boh'; [EMAIL PROTECTED]
Subject: RE: Intermittent ping


All of your times are slow.  1891ms ave., with 3 timeouts/11 echoes.  This
could be due to alot of different things, check times from your router to
your ISP router, then continue checking routers from there.  A trace would
give your more information on where the latency is occurring.

These are my ping times:

Pinging 198.133.219.25 with 32 bytes of data:

Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
Reply from 198.133.219.25: bytes=32 time=61ms TTL=246
Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
Reply from 198.133.219.25: bytes=32 time=60ms TTL=246

Ping statistics for 198.133.219.25:
Packets: Sent = 7, Received = 7, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 60ms, Maximum =  61ms, Average =  60ms

So, to answer your question, no this is not a normal symptom, and you will
have to employ some troubleshooting to find out where/what the problem is.

HTH,
Evan

-Original Message-
From: Alex Boh [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 9:15 AM
To: [EMAIL PROTECTED]
Subject: Intermittent ping


Hi everyone,
Hope someone can enlighten me on the preceding issue. Recently I
acquired a 512Kb lease line point-to-point connection. When I ping from my
PC to cisco.com (c>ping 198.133.219.25 -t), I got reply and some "request
time out", Is this a normal symptom?

Pinging cisco.com [198.133.219.25] with 32 bytes of data:

Reply from 198.133.219.25: bytes=32 time=1778ms TTL=244
Request timed out.
Reply from 198.133.219.25: bytes=32 time=1878ms TTL=244
Request timed out.
Reply from 198.133.219.25: bytes=32 time=1661ms TTL=244
Reply from 198.133.219.25: bytes=32 time=2091ms TTL=244
Reply from 198.133.219.25: bytes=32 time=1801ms TTL=244
Request timed out.
Reply from 198.133.219.25: bytes=32 time=2056ms TTL=244
Reply from 198.133.219.25: bytes=32 time=1977ms TTL=244
Reply from 198.133.219.25: bytes=32 time=1890ms TTL=244





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RE: Show Router Model

[Liwanag, Manolito]

Hi Guys,

Thank you for unfreezing my brain. So embarrassed.  I feel that I should
return my Cisco certs 

rgds,
Manolito

-Original Message-
From: Evan Francen [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 10:53 AM
To: 'Liwanag, Manolito'; 'Cisco Group Study'
Subject: RE: Show Router Model


show version, or show hardware, it will give you the base router model.
Then you can determine from the interfaces installed, what router you have.

Evan

-Original Message-
From: Liwanag, Manolito [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 9:51 AM
To: 'Cisco Group Study'
Subject: Show Router Model



Hi guys,

Can anyone tell me how to tell what model router you have from CLI ? I am
trying to figure out what model we have in a few branches remotely (through
telnet) but my brain is frozen.  I can't recall the command.  Can any one
help ?

I tried doing a sh tech but the info was flying by. How do I slow that info
down ?

Thank you in advanced.

rgds,
Manolito 

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Nortel VPN books?

[NeoLink2000]

Hey group,
 Anybody know of ANY Nortel VPN books out there? I Decided to go with Berkowitz's 
book for VPN in general but found out that I'm going to need to know about Nortel 
VPN's. Haven't seen any books out there. Will I have to go to training or does 
somebody know of a book? Thanks for the input.

Mark Z...

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Re: VPN 3015 using Windows 2000 Domain Authentication

[Chris H]

Adam,

At my company we are doing something similar... We did the following:

1.  Setup the IAS service on our Win2k server
2.  Setup authentication for radius on the VPN concentrator (using the 
Windows 2k server's ip address)
3.  Created an "internal" group on the concentrator.

Although the group is internal, the windows 2k server still authenticates 
the end user session.  On the Windows side, you simply create a group for 
VPN (using the IAS service), and add that to VPN end user profiles... I'm 
not really a microsoft junkie, but I think that's the jist of it.

During our beta testing, we tried NT authentication for external groups, and 
were unsuccessful.  In fact, we weren't successful with any external group 
authentication...Hopefully this insight may help.  It might not be exactly 
what you're doing, but maybe it will give you some ideas.

Chris



>From: "Adam" <[EMAIL PROTECTED]>
>Reply-To: "Adam" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: VPN 3015 using Windows 2000 Domain Authentication
>Date: Tue, 6 Feb 2001 08:31:02 -0500
>
>Has anyone out there successfully implemented external domain 
>authentication
>with the Cisco 3015 Concentrator on a Windows 2000 Domain Controller.  The
>documentation out there does really focus on a "2000" domain 
>authentication.
>
>Any pointers would be appreciated.
>
>
>Adam
>
>
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RE: Merging two companies

[John Dill]

Rodney,

In your original post, you mentioned VPN.  While I agree that double NATting is 
generally a viable approach in your situation, you should be aware that combining NAT 
and encryption will pose additional challenges; especiallly if you have only one IOS 
device at each site.

Regards,

- John

>>> "Tim Lovelace" <[EMAIL PROTECTED]> 02/06/01 08:17AM >>>
I did something similiar just this month. The way I did it was to setup
their new router that connected them with us with NAT. I assigned them a new
private range (say 172.16.1.x /24 ). Then used NAT overload so that all
traffic coming from them looked like it was from the 172.16.1.3 address that
was used as the overload. Then so we could access the servers that we needed
on their network I just added some static NAT entries with addresses like
172.16.1.5 and above. It works fine in the interm until we actually convert
them to be in a range we arent using.

Hope that helps some

Tim

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Rodney Jackson
Sent: Tuesday, February 06, 2001 9:43 AM
To: 'Santosh Koshy'; [EMAIL PROTECTED] 
Subject: RE: Merging two companies


Our routers can't determine if the traffic is local or remote.  So traffic
destine for the new company is never sent because the routers believe it's
locale.  I don't see how NAT would help.

-Original Message-
From: Santosh Koshy [mailto:[EMAIL PROTECTED]] 
Sent: Monday, February 05, 2001 9:22 PM
To: [EMAIL PROTECTED] 
Subject: Re: Merging two companies


I've never done this myself...
But I do not see a reason why you cannot use NAT overloading to do the
job
10.10.10.x<--->Real IP<===>Real IP <--> 10.10.10.x

Please correct me if I am wrong


""Rodney Jackson"" <[EMAIL PROTECTED]> wrote in message
95nrbr$u2l$[EMAIL PROTECTED]">news:95nrbr$u2l$[EMAIL PROTECTED]...
> Guys,
>
> We are merging with another company and plan to connect the two networks
via
> DS3 but in the short term VPN.  The problem is we both use the same
private
> IP ranges.  Is there anyone out there that has gone through this before
and
> would you provide tips or information where I can get a white paper.
>
>
> _
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Re: NM-1E2W Module

[Kevin Wigle]

well I've been having a running commentary with Cisco for the last
few days about what is and what isn't supported on 2600s..

If all you need is an additional ethernet then the NM-1E= would do it.

There is also a 4 port ethernet - NM-4E=  (but pricey)

Kevin Wigle


- Original Message -
From: "Evan Francen" <[EMAIL PROTECTED]>
To: "'Warrick FitzGerald'" <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>
Sent: Tuesday, February 06, 2001 10:14 AM
Subject: RE: NM-1E2W Module


> The 2600 series routers do not support the NM-1E2W module.  You can check
> the supported modules at
> http://www.cisco.com/univercd/cc/td/doc/pcat/2600.htm.
>
> HTH,
> Evan
>
> -Original Message-
> From: Warrick FitzGerald [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 06, 2001 9:03 AM
> To: [EMAIL PROTECTED]
> Subject: NM-1E2W Module
>
>
> Hi,
>
> I have a 2600 cisco router and would like to purchase another ethernet
> interface for the unit. I can find plety of  NM-1E2W modules for sale, but
> the description next to the item always says that it is for a 3600 router,
> can anyone tell me if this module will work in a 2600 and if so how would
I
> have figured this out myself ?
>
> Thanks
> Warrick FitzGerald
> LiveTechnology International Inc.


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RE: Merging two companies

[Howard C. Berkowitz]

A variety of things need to happen to make this work, and address 
translation is just one of them. If both enterprises have used 
private address space, something that often simplifies the 
integration is to use what is called "double NAT":  translate from 
Enterprise 1 space to a new private space in a DMZ, and translate 
from DMZ space to Enterprise 2.  By doing it this way, the Enterprise 
1 and 2 administrators don't necessarily have to coordinate every 
step.

Your DNS is going to be as much challenge as your addressing. In 
major readdressings, DNS and DHCP are your friends.  If you aren't 
using DHCP for most devices, start using it so you only have to make 
changes on DHCP servers.  Make sure applications request services 
from DNS names rather than hard-coded addresses.

If both enterprises are running dynamic routing, you have an 
assortment of things that can help.  Prior to full integration, you 
might want to add plaintext authentication to the routing protocols, 
with different passwords for the two former enterprises. This tends 
to prevent leaks.  As with the address translation DMZ, it's useful 
to establish a new backbone and then bring the old pieces into it.

You may want to have an internal firewall, if for no other reason to 
understand traffic patterns.  This can be temporary.  If there's 
encryption in use, be sure everyone has compatible digital 
certificates and/or crypto tokens.

For the router piece proper, see my http://www.isi.org/rfc/rfc2072.txt

I go into more detail in my books, especially Designing Addressing 
Architectures for Routing and Switching (Macmillan, 1998, ISBN 
1-57870-059-0) and WAN Survival Guide (Wiley, 2000, ISBN 
0-471-38428-3)

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CAT6000 Flash Card

[Nabil Fares]

Greetings all,

I need to format a flash card for the cat6000 with rel 6.2 image.  Can I use
a cisco 7000 router to accomplish this?  Or do I have to use a cat6k to copy
the file down?

Thanks,

Nabil

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Re: Nortel VPN books?

[Raj Singh]

Hey Mark,

Try the Nortel web site. www.nortelnetworking.com

VPN Document Library -
http://www.nortelnetworks.com/products/01/ip_vpn/doclib.html

Also check these books out and see if they have any VPN sections specific to
Nortel (Don't buy them unless you check them out first at a local
bookstore - MicroCenter in Philly / Main Line area would be good for you.)

- Nortel Networks: The Complete Reference by James Knapp: Osborne Pub;
ISBN: 0072120274

- Nortel Networks Router Configuration by Jean-Pierre Comeau:
McGraw-Hill Professional Publishing; ISBN: 0072125330

- Nortel Networks Troubleshooting and Optimization by Ragho Mahalingam:
McGraw-Hill Professional Publishing; ISBN: 007212654X

- raj

--

<[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hey group,
>  Anybody know of ANY Nortel VPN books out there? I Decided to go with
Berkowitz's book for VPN in general but found out that I'm going to need to
know about Nortel VPN's. Haven't seen any books out there. Will I have to go
to training or does somebody know of a book? Thanks for the input.
>
> Mark Z...
>
> _
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RE: NM-1E2W Module

[Jon Wagner]

For a complete list of every module and it's requirements, you can find out
at
http://www.cisco.com/go/modules

Every module is listed under 'solution finder' and it contains hardware &
software requirements for each module.

-Original Message-
From: Kevin Wigle [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 11:55 AM
To: Evan Francen; 'Warrick FitzGerald'; [EMAIL PROTECTED]
Subject: Re: NM-1E2W Module


well I've been having a running commentary with Cisco for the last
few days about what is and what isn't supported on 2600s..

If all you need is an additional ethernet then the NM-1E= would do it.

There is also a 4 port ethernet - NM-4E=  (but pricey)

Kevin Wigle


- Original Message -
From: "Evan Francen" <[EMAIL PROTECTED]>
To: "'Warrick FitzGerald'" <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>
Sent: Tuesday, February 06, 2001 10:14 AM
Subject: RE: NM-1E2W Module


> The 2600 series routers do not support the NM-1E2W module.  You can check
> the supported modules at
> http://www.cisco.com/univercd/cc/td/doc/pcat/2600.htm.
>
> HTH,
> Evan
>
> -Original Message-
> From: Warrick FitzGerald [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 06, 2001 9:03 AM
> To: [EMAIL PROTECTED]
> Subject: NM-1E2W Module
>
>
> Hi,
>
> I have a 2600 cisco router and would like to purchase another ethernet
> interface for the unit. I can find plety of  NM-1E2W modules for sale, but
> the description next to the item always says that it is for a 3600 router,
> can anyone tell me if this module will work in a 2600 and if so how would
I
> have figured this out myself ?
>
> Thanks
> Warrick FitzGerald
> LiveTechnology International Inc.


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RE: Show Router Model

[Jim Dixon]

The only way to SLOW down a show tech
command
is to capture it to a file then use an editor to search through it.

Take a look at Cisco's website for more information.
Here is one link to SHOW COMMANDS
http://www.cisco.com/univercd/cc/td/doc/product/atm/c8540/12_0/13_19/cmd_ref
/show.htm

Watch the word-
-wrap


-Original Message-
From: Liwanag, Manolito [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 10:32 AM
To: 'Cisco Group Study'
Subject: RE: Show Router Model


Hi Guys,

Thank you for unfreezing my brain. So embarrassed.  I feel that I should
return my Cisco certs 

rgds,
Manolito

-Original Message-
From: Evan Francen [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 10:53 AM
To: 'Liwanag, Manolito'; 'Cisco Group Study'
Subject: RE: Show Router Model


show version, or show hardware, it will give you the base router model.
Then you can determine from the interfaces installed, what router you have.

Evan

-Original Message-
From: Liwanag, Manolito [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 9:51 AM
To: 'Cisco Group Study'
Subject: Show Router Model



Hi guys,

Can anyone tell me how to tell what model router you have from CLI ? I am
trying to figure out what model we have in a few branches remotely (through
telnet) but my brain is frozen.  I can't recall the command.  Can any one
help ?

I tried doing a sh tech but the info was flying by. How do I slow that info
down ?

Thank you in advanced.

rgds,
Manolito 

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RE: Intermittent ping

[Croyle, James]

What problem are you trying to solve?   (hehehehe, I have been waiting to
say that one for a long time)  I would do a show interface on the that
port's connection, and look for CRC, and lower than 255/255 reliability, and
look at the load also.  If you need some assistance looking at it, paste it
in an email, you will be more responses than you ever imagined.   ;-)  Also,
some of your ping times are over 2 seconds, the default timeout for ping, so
I was wondering if you changed that when you were pinging...  Or is that was
within an acceptable tolerance for the IOS...


JMHO,

Jim Croyle
nETWORK eNGINEER
 




-Original Message-
From: Alex Boh
To: [EMAIL PROTECTED]
Sent: 2/6/01 10:15 AM
Subject: Intermittent ping

Hi everyone,
Hope someone can enlighten me on the preceding issue. Recently I
acquired a 512Kb lease line point-to-point connection. When I ping from
my
PC to cisco.com (c>ping 198.133.219.25 -t), I got reply and some
"request
time out", Is this a normal symptom?

Pinging cisco.com [198.133.219.25] with 32 bytes of data:

Reply from 198.133.219.25: bytes=32 time=1778ms TTL=244
Request timed out.
Reply from 198.133.219.25: bytes=32 time=1878ms TTL=244
Request timed out.
Reply from 198.133.219.25: bytes=32 time=1661ms TTL=244
Reply from 198.133.219.25: bytes=32 time=2091ms TTL=244
Reply from 198.133.219.25: bytes=32 time=1801ms TTL=244
Request timed out.
Reply from 198.133.219.25: bytes=32 time=2056ms TTL=244
Reply from 198.133.219.25: bytes=32 time=1977ms TTL=244
Reply from 198.133.219.25: bytes=32 time=1890ms TTL=244





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RE: Spanning Tree Question - Root Port Selection

[Tom Pruneau]

When switch send spanning tree updates those updates are sent in BPDUs
(bridge protocol data units). The BPDU will have a source mac address
associated with the originating switch/VLAN number. If a switch recieves
multiple BPDUs that indicate the same root cost it will pick the one which
came from the switch with the lowest (I'm pretty sure it's lowest and not
highest but I may be wrong) MAC address. There is also a port priority
which I believe (I'm not sure) can be configured to aid in the selection of
the root port




At 09:01 AM 02/06/2001 -0600, Jim Dixon wrote:
>Hi Nathan,
>
>Have you read Radia Perlman's Interconnections.  There are two.
>The second edition I believe is the latest.
>She wrote spanning tree.  This book does cover it in detail.
>ISBN# 0201634481 
>
>At the time I looked Amazon had a used one in GOOD condition for 15 bucks.
>(FYI)
>
>
>-Original Message-
>From: Miller, Nathan - BSC [mailto:[EMAIL PROTECTED]]
>Sent: Tuesday, February 06, 2001 8:09 AM
>To: [EMAIL PROTECTED]
>Subject: Spanning Tree Question - Root Port Selection
>
>
>I have been looking for a while for further documentation of the process by
>which a switch selects its root port.  Most of the books that I have
>searched for this information say something similar to the following quote
>from a CCO page: "A bridge's root port is the port through which the root
>bridge can be reached with the least aggregate path cost, a value that is
>called the root path cost."  My problem is that they all seem to stop there.
>My question is this.  If the root path cost is the same on multiple switch
>ports, how does STA determine which is the root port?  Does it follow the
>same course as it would when selecting a designated port (root bridge, root
>path cost, sender ID, sender port). 
>Many thanks for your thoughts.
>Nathan Miller
>
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>
Tom Pruneau 
Trainer Network Operations

GENUITY
3 Van de Graff Drive Burlington Ma. 01803
24 Hr. Network Operations Center 800-436-8489
If you need to get a hold of me my hours are 8AM-4PM ET Mon-Fri

---
This email is composed of 82% post consumer recycled data bits
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in the strangest of places if you look at it right"

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Re: Which BCMSN Cisco book?

[Mason Eike]

I found the Cisco Press book to be most useful filling in the gaps and
will suit anyone well that doesn't know a thing about switching and
just beginning.  The book has excellent case studies and questions
although they are not asked in the same manner as they are in the
test.
 
 Plus.  When I took the exam they didn't even go over 3 or 4 important
 topics of switching technologies.. I was surprised but anywho..

Good luck to ya..


On 5 Feb 2001 08:31:10 -0500, [EMAIL PROTECTED] (Rajeev Soni) wrote:

>If you just want to pass the exam then take CISCO CCNP Switching Exam
>Certification Guide. It goes through point by point through the course. If you
>are the one to know hows and whys then take both since they refer back and
>forth. Both of them are good to have and study from. This is my point of view.
>
>Rajeev Soni
>
>Reply Separator
>Subject:Which BCMSN Cisco book?
>Author: "Terry" <[EMAIL PROTECTED]>
>Date:   2/2/2001 9:50 PM
>
>Trying to decide which book to get for the switching test.  Anyone out there
>compared them both?
>
>Building Cisco Multilayer Switched Networks
>
>Hardcover - 500 pages 1st edition (May 15, 2000)
>Cisco Pr; ISBN: 1578700930 ; Dimensions (in inches): 1.40 x 9.47 x 7.70
>
>- or -
>
>Cisco Ccnp Switching Exam Certification Guide
>Hardcover - 576 pages Bk&Cd-Rom edition (December 20, 2000)
>Cisco Systems; ISBN: 158727 ; Dimensions (in inches): 1.50 x 9.43 x 7.71
>
>Thanks
>
>Terry
>
>
>
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Re: NM-1E2W Module

[Kevin Wigle]

this is what I get:

As this page was linked to Cisco CCO from another web site -


Unknown referrer
you should notify the [EMAIL PROTECTED]
or similar responsible person for the content or search feature of that
site,
of the incorrect link to http://www.cisco.com/go/modules

Kevin Wigle


- Original Message -
From: "Jon Wagner" <[EMAIL PROTECTED]>
To: "'Warrick FitzGerald'" <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>
Sent: Tuesday, February 06, 2001 12:17 PM
Subject: RE: NM-1E2W Module


> For a complete list of every module and it's requirements, you can find
out
> at
> http://www.cisco.com/go/modules
>
> Every module is listed under 'solution finder' and it contains hardware &
> software requirements for each module.
>
> -Original Message-
> From: Kevin Wigle [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 06, 2001 11:55 AM
> To: Evan Francen; 'Warrick FitzGerald'; [EMAIL PROTECTED]
> Subject: Re: NM-1E2W Module
>
>
> well I've been having a running commentary with Cisco for the last
> few days about what is and what isn't supported on 2600s..
>
> If all you need is an additional ethernet then the NM-1E= would do it.
>
> There is also a 4 port ethernet - NM-4E=  (but pricey)
>
> Kevin Wigle
>
>
> - Original Message -
> From: "Evan Francen" <[EMAIL PROTECTED]>
> To: "'Warrick FitzGerald'" <[EMAIL PROTECTED]>;
> <[EMAIL PROTECTED]>
> Sent: Tuesday, February 06, 2001 10:14 AM
> Subject: RE: NM-1E2W Module
>
>
> > The 2600 series routers do not support the NM-1E2W module.  You can
check
> > the supported modules at
> > http://www.cisco.com/univercd/cc/td/doc/pcat/2600.htm.
> >
> > HTH,
> > Evan
> >
> > -Original Message-
> > From: Warrick FitzGerald [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, February 06, 2001 9:03 AM
> > To: [EMAIL PROTECTED]
> > Subject: NM-1E2W Module
> >
> >
> > Hi,
> >
> > I have a 2600 cisco router and would like to purchase another ethernet
> > interface for the unit. I can find plety of  NM-1E2W modules for sale,
but
> > the description next to the item always says that it is for a 3600
router,
> > can anyone tell me if this module will work in a 2600 and if so how
would
> I
> > have figured this out myself ?
> >
> > Thanks
> > Warrick FitzGerald
> > LiveTechnology International Inc.
>
>
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RE: Spanning Tree Question - Root Port Selection

[Jim Dixon]

>From the CISCO web site.
http://www.cisco.com/warp/public/473/5.html#oper


Rules of Operation - STP works as follows: When the switches first come up,
they start the root switch selection process by each switch transmitting
BPDU to its directly connected switch on a per-VLAN basis. 

As the BPDU goes out through the network, each switch compares the BPDU it
sent out to the one it received from its neighbors. From this comparison,
the switches come to an agreement as to who the root switch is. The switch
with the lowest priority in the network that wins this election process. 

(Remember, there will be one root switch identified per VLAN.) After that
root switch has been identified, the switches follow the rules defined
below: 

STP Rule One: All ports of the root switch must be in forwarding mode
(except for some corner cases where self-looped ports are involved). 
Next, each switch determines their best path to get to the root. They
determine this path by comparing the information in all the BPDUs received
on all their ports. The port with the smallest information contained in its
BPDU is used to get to the root switch; that port is called the root port.
After a switch figures out its root port, it proceeds to Rule Two. 

STP Rule Two: Once a switch determines its root port, that port must be set
to forwarding mode. 

In addition, for each LAN segment, the switches communicate with each other
to determine which switch on that LAN segment is best to use for moving data
from that segment to the root bridge. This switch is called the designated
switch. 

STP Rule Three: In a given LAN segment, the designated switch's port that
connects to that LAN segment must be placed in forwarding mode. 

STP Rule Four: All other ports in all the switches (VLAN-specific) must be
placed in blocking mode. This is only for ports that are connected to other
bridges or switches. Ports connected to workstations or PCs are not affected
by STP; they remain forwarded. 

FOR a Look at path cost you might take a look at
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3ks/3000/aicfgcsl.htm
#11023



-Original Message-
From: Tom Pruneau [mailto:[EMAIL PROTECTED]]

When switch send spanning tree updates those updates are sent in BPDUs
(bridge protocol data units). The BPDU will have a source mac address
associated with the originating switch/VLAN number. If a switch recieves
multiple BPDUs that indicate the same root cost it will pick the one which
came from the switch with the lowest (I'm pretty sure it's lowest and not
highest but I may be wrong) MAC address. There is also a port priority
which I believe (I'm not sure) can be configured to aid in the selection of
the root port

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Possible BCMSN Errata??

[Paul Mandella]

Hello All. While working on examples of converting Multicast IP addresses to
Multicast MAC addresses in the Cisco book I came across one that doesn't
seem to be correct. I ask for opinions on the following to possibly save my
sanity on this one. Thanks

The IP address in the book is 224.0.9.45
It is shown as 1110    1010 0101 0010 1101

Seems to me that this IP should read 224.0.165.45 and this would work out to
the Multicast MAC being 01-00-5e-00-a5-2d and not the 01-00-5e-00-09-2d
given in the book.

Did I just lose my mind on this one?? I have not found errata on Cisco Press
site that corrects this. Thanks for any input

Paul


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RE: Merging 2 companies..

[Rodney Jackson]

Thanks so much!!!  I'm in the process of writing a proposal and hopefully I can 
convince my bosses.

-Original Message-
From: Philip Neeson [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 9:58 AM
To: [EMAIL PROTECTED]
Subject: RE:Merging 2 companies..


Hi,

This ppt file should help explain how this can be
achieved with NAT. It's not easy and I haven't been
able to get it to work with MS domains, WINS etc..

Hope it helps..

Philip.

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ISDN

[Albert Lu]

Hi,

Does anyone have experience with Teleos/Madge AccessSwitch 20? I believe one
of the module has a T1 and 4 port BRI, could I use this in a CCIE lab for
ISDN? I'm thinking that the T1 is a serial port which I could hook up to a
cisco router, and the BRI ports I could use.

Thank you for any feedback

Albert

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Re: NM-1E2W Module

[Chris Best]

Mr. Wigle,
I couldn't help but notice your frustration with this topic.  Here is a
link that should be of service to you:

http://www.cisco.com/pcgi-bin/finder/msbsearch.pl

This link is the "Solution Finder for Modular Routers"

You would be best served by doing the "Search 2" by part number.  Plug your
part number in, and you will find what routers support that particular part
number.

Hope this is of help to you and everyone else on this mailing list.

Chris Best
Cisco Systems
Partner/Reseller Presales Helpline

1-800-553-6387, option 2 or
+1-408-526-7208, option 2
http://www.cisco.com/go/tools
- Original Message -
From: "Kevin Wigle" <[EMAIL PROTECTED]>
To: "Jon Wagner" <[EMAIL PROTECTED]>; "'Warrick FitzGerald'"
<[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, February 06, 2001 10:10 AM
Subject: Re: NM-1E2W Module


> this is what I get:
>
> As this page was linked to Cisco CCO from another web site -
>
>
> Unknown referrer
> you should notify the [EMAIL PROTECTED]
> or similar responsible person for the content or search feature of that
> site,
> of the incorrect link to http://www.cisco.com/go/modules
>
> Kevin Wigle
>
>
> - Original Message -
> From: "Jon Wagner" <[EMAIL PROTECTED]>
> To: "'Warrick FitzGerald'" <[EMAIL PROTECTED]>;
> <[EMAIL PROTECTED]>
> Sent: Tuesday, February 06, 2001 12:17 PM
> Subject: RE: NM-1E2W Module
>
>
> > For a complete list of every module and it's requirements, you can find
> out
> > at
> > http://www.cisco.com/go/modules
> >
> > Every module is listed under 'solution finder' and it contains hardware
&
> > software requirements for each module.
> >
> > -Original Message-
> > From: Kevin Wigle [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, February 06, 2001 11:55 AM
> > To: Evan Francen; 'Warrick FitzGerald'; [EMAIL PROTECTED]
> > Subject: Re: NM-1E2W Module
> >
> >
> > well I've been having a running commentary with Cisco for the
last
> > few days about what is and what isn't supported on 2600s..
> >
> > If all you need is an additional ethernet then the NM-1E= would do it.
> >
> > There is also a 4 port ethernet - NM-4E=  (but pricey)
> >
> > Kevin Wigle
> >
> >
> > - Original Message -
> > From: "Evan Francen" <[EMAIL PROTECTED]>
> > To: "'Warrick FitzGerald'" <[EMAIL PROTECTED]>;
> > <[EMAIL PROTECTED]>
> > Sent: Tuesday, February 06, 2001 10:14 AM
> > Subject: RE: NM-1E2W Module
> >
> >
> > > The 2600 series routers do not support the NM-1E2W module.  You can
> check
> > > the supported modules at
> > > http://www.cisco.com/univercd/cc/td/doc/pcat/2600.htm.
> > >
> > > HTH,
> > > Evan
> > >
> > > -Original Message-
> > > From: Warrick FitzGerald [mailto:[EMAIL PROTECTED]]
> > > Sent: Tuesday, February 06, 2001 9:03 AM
> > > To: [EMAIL PROTECTED]
> > > Subject: NM-1E2W Module
> > >
> > >
> > > Hi,
> > >
> > > I have a 2600 cisco router and would like to purchase another ethernet
> > > interface for the unit. I can find plety of  NM-1E2W modules for sale,
> but
> > > the description next to the item always says that it is for a 3600
> router,
> > > can anyone tell me if this module will work in a 2600 and if so how
> would
> > I
> > > have figured this out myself ?
> > >
> > > Thanks
> > > Warrick FitzGerald
> > > LiveTechnology International Inc.
> >
> >
> > _
> > FAQ, list archives, and subscription info:
> > http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
> > _
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
> _
> 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: Possible BCMSN Errata??

[Ole Drews Jensen]

I do not have the book in front of me, but yes, the given binary IP address
is 224.0.165.45 and the MultiCast MAC will be 01-00-5E-00-09-2D.

Ole


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

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




-Original Message-
From: Paul Mandella [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 12:48 PM
To: [EMAIL PROTECTED]
Subject: Possible BCMSN Errata??


Hello All. While working on examples of converting Multicast IP addresses to
Multicast MAC addresses in the Cisco book I came across one that doesn't
seem to be correct. I ask for opinions on the following to possibly save my
sanity on this one. Thanks

The IP address in the book is 224.0.9.45
It is shown as 1110    1010 0101 0010 1101

Seems to me that this IP should read 224.0.165.45 and this would work out to
the Multicast MAC being 01-00-5e-00-a5-2d and not the 01-00-5e-00-09-2d
given in the book.

Did I just lose my mind on this one?? I have not found errata on Cisco Press
site that corrects this. Thanks for any input

Paul


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RE: NM-1E2W Module

[Brian Dennis]

This should work.

http://www.cisco.com/go/module


Brian Dennis
CCIE #2210 (R&S)(ISP/Dial)
CCSI #98640

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Kevin Wigle
Sent: Tuesday, February 06, 2001 10:10 AM
To: Jon Wagner; 'Warrick FitzGerald'; [EMAIL PROTECTED]
Subject: Re: NM-1E2W Module


this is what I get:

As this page was linked to Cisco CCO from another web site -


Unknown referrer
you should notify the [EMAIL PROTECTED]
or similar responsible person for the content or search feature of that
site,
of the incorrect link to http://www.cisco.com/go/modules

Kevin Wigle


- Original Message -
From: "Jon Wagner" <[EMAIL PROTECTED]>
To: "'Warrick FitzGerald'" <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>
Sent: Tuesday, February 06, 2001 12:17 PM
Subject: RE: NM-1E2W Module


> For a complete list of every module and it's requirements, you can find
out
> at
> http://www.cisco.com/go/modules
>
> Every module is listed under 'solution finder' and it contains hardware &
> software requirements for each module.
>
> -Original Message-
> From: Kevin Wigle [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 06, 2001 11:55 AM
> To: Evan Francen; 'Warrick FitzGerald'; [EMAIL PROTECTED]
> Subject: Re: NM-1E2W Module
>
>
> well I've been having a running commentary with Cisco for the last
> few days about what is and what isn't supported on 2600s..
>
> If all you need is an additional ethernet then the NM-1E= would do it.
>
> There is also a 4 port ethernet - NM-4E=  (but pricey)
>
> Kevin Wigle
>
>
> - Original Message -
> From: "Evan Francen" <[EMAIL PROTECTED]>
> To: "'Warrick FitzGerald'" <[EMAIL PROTECTED]>;
> <[EMAIL PROTECTED]>
> Sent: Tuesday, February 06, 2001 10:14 AM
> Subject: RE: NM-1E2W Module
>
>
> > The 2600 series routers do not support the NM-1E2W module.  You can
check
> > the supported modules at
> > http://www.cisco.com/univercd/cc/td/doc/pcat/2600.htm.
> >
> > HTH,
> > Evan
> >
> > -Original Message-
> > From: Warrick FitzGerald [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, February 06, 2001 9:03 AM
> > To: [EMAIL PROTECTED]
> > Subject: NM-1E2W Module
> >
> >
> > Hi,
> >
> > I have a 2600 cisco router and would like to purchase another ethernet
> > interface for the unit. I can find plety of  NM-1E2W modules for sale,
but
> > the description next to the item always says that it is for a 3600
router,
> > can anyone tell me if this module will work in a 2600 and if so how
would
> I
> > have figured this out myself ?
> >
> > Thanks
> > Warrick FitzGerald
> > LiveTechnology International Inc.
>
>
> _
> FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
> _
> FAQ, list archives, and subscription info:
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Re: VLANs on Catalyst 1900 Switches

[Tom Lisa]

Dave,

Don't forget, before you put 9.00.04 Enterprise on you must upgrade the 8.01.00 
Standard
to 9.00.04 Standard then make the conversion to Enterprise version.  I have been 
meaning
to research why you must upgrade to latest standard before you can put on enterprise 
(if
you don't already have enterprise on that is) but haven't found out yet.  Perhaps
someone else on the list knows.

Tom Lisa, Instructor, CCNA, CCAI
Community College of Southern Nevada
Cisco Regional Networking Academy



[EMAIL PROTECTED] wrote:

> Tom,
>
> That was it.  The Cat1900 with the 9.00.04 Enterprise edition s/w now has
> the vlan options available now.  The Cat1900 with the 8.01.00 s/w does not.
> The Cat1900s used in the CCNA course my coworker just took had 8.01.07
> loaded so 8.01.00 may not support VLANs ... I'll just put the 9.00.04 code
> on it.
>
> Thanks,
>
> Dave Goldsmith
>
> -Original Message-
> From: Tom Lisa [mailto:[EMAIL PROTECTED]]
> Sent: Monday, February 05, 2001 8:10 PM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: Re: VLANs on Catalyst 1900 Switches
>
> Dave,
>
> It sounds like your switches are configured for bridge groups rather than
> VLANS.  This
> can be reset by going to the Main Menu and selecting S (System Sub-Menu).
> Then select
> option T (Reset to VLANS) to enable VLAN configuration.  Option T changes to
> Reset to
> Bridge Groups when VLANS are enabled.
>
> HTH,
> Tom Lisa, Instructor, CCNA, CCAI
> Community College of Southern Nevada
> Cisco Regional Networking Academy
>
> [EMAIL PROTECTED] wrote:
>
> > I have 2 Cat1900 switches (WS-1912-A).  One has the 8.01.00 Standard
> Edition
> > loaded and the other has the 9.00.04 Enterprise Edition loaded.  On
> neither
> > of them are any of the VLAN commands available.
> >
> > The Cisco ICND book covers VLANs on Cat1900 switches and a co-worker just
> > attended a GlobalKnowledge CCNA Boot Camp where they did configure VLANs
> on
> > Cat1900s (with version 8.xx loaded).
> >
> > In addition to the software version, is there a hardware issue?  Do some
> > Cat1900s not support VLANs?
> >
> > Dave Goldsmith
>
> _
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Re: NM-1E2W Module

[Kevin Wigle]

Chris,

I really appreciate yet another tool to look things up but my anguish comes
from finding different info on different CCO pages.

We have a member  (Karl) on this list right now that has sent me a link that
says NM-1FE-TX is supported on the 2600.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121relnt/260
0/rn2600xq.htm

This new tool (and others) say it isn't.

He sent me a sh diag where it is happily working away.

Now I know there is a difference in "working" and being "supported".

I rely on CCO to give clients advice and lately I've been finding some
"inconsistencies"

If it wasn't for the link enclosed above I would be happy.  However,
obviously "Karl" thought it was ok (due to the above link???), installed it
and it works.

In light of the above link, maybe you could tell us if it really is
supported as far as TAC is concerned?
i.e. if I phoned TAC with a sick 2600 router and they see this NM installed
will they say "get it out of there??"

And I really do appreciate your support here on groupstudy.

Kevin Wigle
CCDP/CCNP
EffectiveNets
Cisco Partner, Premier Certified


- Original Message -
From: "Chris Best" <[EMAIL PROTECTED]>
To: "Kevin Wigle" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Tuesday, February 06, 2001 3:03 PM
Subject: Re: NM-1E2W Module


> Mr. Wigle,
> I couldn't help but notice your frustration with this topic.  Here is
a
> link that should be of service to you:
>
> http://www.cisco.com/pcgi-bin/finder/msbsearch.pl
>
> This link is the "Solution Finder for Modular Routers"
>
> You would be best served by doing the "Search 2" by part number.  Plug
your
> part number in, and you will find what routers support that particular
part
> number.
>
> Hope this is of help to you and everyone else on this mailing list.
>
> Chris Best
> Cisco Systems
> Partner/Reseller Presales Helpline
>
> 1-800-553-6387, option 2 or
> +1-408-526-7208, option 2
> http://www.cisco.com/go/tools
> - Original Message -
> From: "Kevin Wigle" <[EMAIL PROTECTED]>
> To: "Jon Wagner" <[EMAIL PROTECTED]>; "'Warrick FitzGerald'"
> <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> Sent: Tuesday, February 06, 2001 10:10 AM
> Subject: Re: NM-1E2W Module
>
>
> > this is what I get:
> >
> > As this page was linked to Cisco CCO from another web site -
> >
> >
> > Unknown referrer
> > you should notify the [EMAIL PROTECTED]
> > or similar responsible person for the content or search feature of that
> > site,
> > of the incorrect link to http://www.cisco.com/go/modules
> >
> > Kevin Wigle
> >
> >
> > - Original Message -
> > From: "Jon Wagner" <[EMAIL PROTECTED]>
> > To: "'Warrick FitzGerald'" <[EMAIL PROTECTED]>;
> > <[EMAIL PROTECTED]>
> > Sent: Tuesday, February 06, 2001 12:17 PM
> > Subject: RE: NM-1E2W Module
> >
> >
> > > For a complete list of every module and it's requirements, you can
find
> > out
> > > at
> > > http://www.cisco.com/go/modules
> > >
> > > Every module is listed under 'solution finder' and it contains
hardware
> &
> > > software requirements for each module.
> > >
> > > -Original Message-
> > > From: Kevin Wigle [mailto:[EMAIL PROTECTED]]
> > > Sent: Tuesday, February 06, 2001 11:55 AM
> > > To: Evan Francen; 'Warrick FitzGerald'; [EMAIL PROTECTED]
> > > Subject: Re: NM-1E2W Module
> > >
> > >
> > > well I've been having a running commentary with Cisco for the
> last
> > > few days about what is and what isn't supported on 2600s..
> > >
> > > If all you need is an additional ethernet then the NM-1E= would do it.
> > >
> > > There is also a 4 port ethernet - NM-4E=  (but pricey)
> > >
> > > Kevin Wigle
> > >
> > >
> > > - Original Message -
> > > From: "Evan Francen" <[EMAIL PROTECTED]>
> > > To: "'Warrick FitzGerald'" <[EMAIL PROTECTED]>;
> > > <[EMAIL PROTECTED]>
> > > Sent: Tuesday, February 06, 2001 10:14 AM
> > > Subject: RE: NM-1E2W Module
> > >
> > >
> > > > The 2600 series routers do not support the NM-1E2W module.  You can
> > check
> > > > the supported modules at
> > > > http://www.cisco.com/univercd/cc/td/doc/pcat/2600.htm.
> > > >
> > > > HTH,
> > > > Evan
> > > >
> > > > -Original Message-
> > > > From: Warrick FitzGerald [mailto:[EMAIL PROTECTED]]
> > > > Sent: Tuesday, February 06, 2001 9:03 AM
> > > > To: [EMAIL PROTECTED]
> > > > Subject: NM-1E2W Module
> > > >
> > > >
> > > > Hi,
> > > >
> > > > I have a 2600 cisco router and would like to purchase another
ethernet
> > > > interface for the unit. I can find plety of  NM-1E2W modules for
sale,
> > but
> > > > the description next to the item always says that it is for a 3600
> > router,
> > > > can anyone tell me if this module will work in a 2600 and if so how
> > would
> > > I
> > > > have figured this out myself ?
> > > >
> > > > Thanks
> > > > Warrick FitzGerald
> > > > LiveTechnology International Inc.
> > >
> > >
> > > _
> > > FAQ, list archives, and subscription info:
> > > http://www.groupstudy.com/list/ci

Re: NM-1E2W Module

[Kevin Wigle]

sorry, I should have tried that myself.

However, it brings me to the same place that Chris Best showed the list.

but thanks!

Kevin Wigle

- Original Message - 
From: "Brian Dennis" <[EMAIL PROTECTED]>
To: "Kevin Wigle" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, February 06, 2001 2:18 PM
Subject: RE: NM-1E2W Module


> This should work.
> 
> http://www.cisco.com/go/module
> 
> 
> Brian Dennis
> CCIE #2210 (R&S)(ISP/Dial)
> CCSI #98640
> 


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Re: NM-1E2W Module

[Chris Best]

Mr. Wigle,
I have seen that link that you have seen, and am researching it with the
Product Managers.  I currently do not have any statement from them as to
whether or not this is true.  So for now, I am still telling everyone that I
speak with that that module (NM-1FE-TX) is not supported in the 2600's.  It
may very well be supported, but I know the NM-1FE2W is not supported.  My
reasoning for stating this (that the NM-1FE-TX is not supported) is that the
version that is stated on that page (12.1.3XQ2) is not a mainline release,
and I usually do not recommend using non-mainline releases.  As far as
whether or not you could call up TAC with that version installed and be ok
with it, I am uncertain.  Again, I am having to research this.

Hope this helps a bit.

Chris Best
Cisco Systems
Partner/Reseller Presales Helpline

1-800-553-6387, option 2 or
+1-408-526-7208, option 2
http://www.cisco.com/go/tools
- Original Message -
From: "Kevin Wigle" <[EMAIL PROTECTED]>
To: "Chris Best" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Tuesday, February 06, 2001 12:03 PM
Subject: Re: NM-1E2W Module


> Chris,
>
> I really appreciate yet another tool to look things up but my anguish
comes
> from finding different info on different CCO pages.
>
> We have a member  (Karl) on this list right now that has sent me a link
that
> says NM-1FE-TX is supported on the 2600.
>
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121relnt/260
> 0/rn2600xq.htm
>
> This new tool (and others) say it isn't.
>
> He sent me a sh diag where it is happily working away.
>
> Now I know there is a difference in "working" and being "supported".
>
> I rely on CCO to give clients advice and lately I've been finding some
> "inconsistencies"
>
> If it wasn't for the link enclosed above I would be happy.  However,
> obviously "Karl" thought it was ok (due to the above link???), installed
it
> and it works.
>
> In light of the above link, maybe you could tell us if it really is
> supported as far as TAC is concerned?
> i.e. if I phoned TAC with a sick 2600 router and they see this NM
installed
> will they say "get it out of there??"
>
> And I really do appreciate your support here on groupstudy.
>
> Kevin Wigle
> CCDP/CCNP
> EffectiveNets
> Cisco Partner, Premier Certified
>
>
> - Original Message -
> From: "Chris Best" <[EMAIL PROTECTED]>
> To: "Kevin Wigle" <[EMAIL PROTECTED]>
> Cc: <[EMAIL PROTECTED]>
> Sent: Tuesday, February 06, 2001 3:03 PM
> Subject: Re: NM-1E2W Module
>
>
> > Mr. Wigle,
> > I couldn't help but notice your frustration with this topic.  Here
is
> a
> > link that should be of service to you:
> >
> > http://www.cisco.com/pcgi-bin/finder/msbsearch.pl
> >
> > This link is the "Solution Finder for Modular Routers"
> >
> > You would be best served by doing the "Search 2" by part number.  Plug
> your
> > part number in, and you will find what routers support that particular
> part
> > number.
> >
> > Hope this is of help to you and everyone else on this mailing list.
> >
> > Chris Best
> > Cisco Systems
> > Partner/Reseller Presales Helpline
> >
> > 1-800-553-6387, option 2 or
> > +1-408-526-7208, option 2
> > http://www.cisco.com/go/tools
> > - Original Message -
> > From: "Kevin Wigle" <[EMAIL PROTECTED]>
> > To: "Jon Wagner" <[EMAIL PROTECTED]>; "'Warrick FitzGerald'"
> > <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> > Sent: Tuesday, February 06, 2001 10:10 AM
> > Subject: Re: NM-1E2W Module
> >
> >
> > > this is what I get:
> > >
> > > As this page was linked to Cisco CCO from another web site -
> > >
> > >
> > > Unknown referrer
> > > you should notify the [EMAIL PROTECTED]
> > > or similar responsible person for the content or search feature of
that
> > > site,
> > > of the incorrect link to http://www.cisco.com/go/modules
> > >
> > > Kevin Wigle
> > >
> > >
> > > - Original Message -
> > > From: "Jon Wagner" <[EMAIL PROTECTED]>
> > > To: "'Warrick FitzGerald'" <[EMAIL PROTECTED]>;
> > > <[EMAIL PROTECTED]>
> > > Sent: Tuesday, February 06, 2001 12:17 PM
> > > Subject: RE: NM-1E2W Module
> > >
> > >
> > > > For a complete list of every module and it's requirements, you can
> find
> > > out
> > > > at
> > > > http://www.cisco.com/go/modules
> > > >
> > > > Every module is listed under 'solution finder' and it contains
> hardware
> > &
> > > > software requirements for each module.
> > > >
> > > > -Original Message-
> > > > From: Kevin Wigle [mailto:[EMAIL PROTECTED]]
> > > > Sent: Tuesday, February 06, 2001 11:55 AM
> > > > To: Evan Francen; 'Warrick FitzGerald'; [EMAIL PROTECTED]
> > > > Subject: Re: NM-1E2W Module
> > > >
> > > >
> > > > well I've been having a running commentary with Cisco for
the
> > last
> > > > few days about what is and what isn't supported on 2600s..
> > > >
> > > > If all you need is an additional ethernet then the NM-1E= would do
it.
> > > >
> > > > There is also a 4 port ethernet - NM-4E=  (but pricey)
> > > >
> > > > Kevin 

RE: Possible BCMSN Errata??

[Ole Drews Jensen]

You can probably find a lot of good sites about Multicast if you start
searching for them on the web.
 
I thought the Multicast IP to MAC address in the BCMSN book by Karen Webb
was a little confusing, but after I read the LAN switching book by Clark and
Hamilton, I understood exactly what to do.
 
If you picture an IP address as octet1.octet2.octet3.octet4, the way to
convert it to a MAC address is:
 
1) Take (octet2, octet3 and octet4)
2) AND octet2 with 127 (or subtract 128 if octet2 >= 128)
3) Convert each octet to hexadecimal values
4) MAC = 01.00.5E.new-octet2.new-octet3.new-octet4
 
Let's take your example 224.0.165.45
 
1) 0.165.45
2) 0.165.45
3) 00.A5.2D
4) MAC = 01.00.5E.00.A5.2D
 
As you can see on this method, 224 uses the 3 first bits in octet1 to
specify it self as a Multicast IP address, which leaves 5 bit left for
addresses. These 5 bits plus the 1 bit of octet2 that is cleared gives you 6
bits or 32 different IP addresses that will end up with the same MAC
address.
 
Let's take IP address 225.128.165.45 and do the same 4 steps:
 
1) 128.165.45
2) 0.165.45
3) 00.A5.2D
4) MAC = 01.00.5E.00.A5.2D
 
This means that you have to think about this before you assign your
Multicast IP addresses to networks where you have more than one group,
because you could end up with two different groups pointing to the same
physical address.
 
Hth,
 
Ole



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

-Original Message-
From: jim klane [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 2:04 PM
To: [EMAIL PROTECTED]
Subject: RE: Possible BCMSN Errata??



do you have a link on thie multicast stuff?

 

let me know 

 

jim 



>From: Ole Drews Jensen 
>Reply-To: Ole Drews Jensen 
>To: "'Paul Mandella'" , [EMAIL PROTECTED] 
>Subject: RE: Possible BCMSN Errata?? 
>Date: Tue, 6 Feb 2001 13:20:31 -0600 
> 
>I do not have the book in front of me, but yes, the given binary IP address

>is 224.0.165.45 and the MultiCast MAC will be 01-00-5E-00-09-2D. 
> 
>Ole 
> 
> 
> Ole Drews Jensen 
> Systems Network Manager 
> CCNA, MCSE, MCP+I 
> RWR Enterprises, Inc. 
> [EMAIL PROTECTED] 
> http://www.CiscoKing.com 
> 
> NEED A JOB ??? 
> http://www.oledrews.com/job 
> 
> 
> 
> 
>-Original Message- 
>From: Paul Mandella [mailto:[EMAIL PROTECTED]] 
>Sent: Tuesday, February 06, 2001 12:48 PM 
>To: [EMAIL PROTECTED] 
>Subject: Possible BCMSN Errata?? 
> 
> 
>Hello All. While working on examples of converting Multicast IP addresses
to 
>Multicast MAC addresses in the Cisco book I came across one that doesn't 
>seem to be correct. I ask for opinions on the following to possibly save my

>sanity on this one. Thanks 
> 
>The IP address in the book is 224.0.9.45 
>It is shown as 1110    1010 0101 0010 1101 
> 
>Seems to me that this IP should read 224.0.165.45 and this would work out
to 
>the Multicast MAC being 01-00-5e-00-a5-2d and not the 01-00-5e-00-09-2d 
>given in the book. 
> 
>Did I just lose my mind on this one?? I have not found errata on Cisco
Press 
>site that corrects this. Thanks for any input 
> 
>Paul 
> 
> 
>_ 
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> 
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  _  

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RE: Intermittent ping

[Tony van Ree]

Hi,

Slow response but where. Step one check your interface to see what traffic you have at 
the time, check the drops etc. 

If this is ok. 

Do a traceroute to discover the path taken. A traceroute might indicate where to find 
a problem. 

First try trace,  then try a ping to the first point in the WAN, then the next address 
the trace goes to and so on.  

If you are using something like ISDN for you 512K make sure your bundles are correct 
(PPP Multi or whatever).

These problems can be anywhere in the net but are usually close to home.

Just some thoughts,

Teunis,
Hobart, Tasmania
Australia
  



On Tuesday, February 06, 2001 at 09:50:43 AM, Evan Francen wrote:

> All of your times are slow.  1891ms ave., with 3 timeouts/11 echoes.  This
> could be due to alot of different things, check times from your router to
> your ISP router, then continue checking routers from there.  A trace would
> give your more information on where the latency is occurring.
> 
> These are my ping times:
> 
> Pinging 198.133.219.25 with 32 bytes of data:
> 
> Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
> Reply from 198.133.219.25: bytes=32 time=61ms TTL=246
> Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
> Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
> Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
> Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
> Reply from 198.133.219.25: bytes=32 time=60ms TTL=246
> 
> Ping statistics for 198.133.219.25:
> Packets: Sent = 7, Received = 7, Lost = 0 (0% loss),
> Approximate round trip times in milli-seconds:
> Minimum = 60ms, Maximum =  61ms, Average =  60ms
> 
> So, to answer your question, no this is not a normal symptom, and you will
> have to employ some troubleshooting to find out where/what the problem is.
> 
> HTH,
> Evan
> 
> -Original Message-
> From: Alex Boh [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 06, 2001 9:15 AM
> To: [EMAIL PROTECTED]
> Subject: Intermittent ping
> 
> 
> Hi everyone,
> Hope someone can enlighten me on the preceding issue. Recently I
> acquired a 512Kb lease line point-to-point connection. When I ping from my
> PC to cisco.com (c>ping 198.133.219.25 -t), I got reply and some "request
> time out", Is this a normal symptom?
> 
> Pinging cisco.com [198.133.219.25] with 32 bytes of data:
> 
> Reply from 198.133.219.25: bytes=32 time=1778ms TTL=244
> Request timed out.
> Reply from 198.133.219.25: bytes=32 time=1878ms TTL=244
> Request timed out.
> Reply from 198.133.219.25: bytes=32 time=1661ms TTL=244
> Reply from 198.133.219.25: bytes=32 time=2091ms TTL=244
> Reply from 198.133.219.25: bytes=32 time=1801ms TTL=244
> Request timed out.
> Reply from 198.133.219.25: bytes=32 time=2056ms TTL=244
> Reply from 198.133.219.25: bytes=32 time=1977ms TTL=244
> Reply from 198.133.219.25: bytes=32 time=1890ms TTL=244
> 
> 
> 
> 
> 
> _
> FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
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RE: Another 802.3 and Ethernet Question

[Tony van Ree]

Hi,

Those not specified by the router are either routed by the server or produce IPX 
protol errors and are dropped.

It is important not to have the various frame types set on the servers or service 
advertisers.  If for example you are normally using Novell-Ether (802.3) and you put 
in a server using Netware 4.x running SAP (802.2).  Now when you put in the first 
server you configure both the SAP and Novell Ether in the server.  You have 802.3 
(Novell-ether) configured in the router.  Pull out the original server and you have no 
network. Othen you will lose half of your local clients.

Have lose networks and or frame types can also create some horrible little routing 
loops and unwanted traffic. SAP's, RIP updates etc.

Let the router route and servers serve.

Another one that sometimes grabs you.

Teunis,
Hobart, Tasmania
Australia


On Tuesday, February 06, 2001 at 08:45:48 AM, Leigh Anne Chisholm wrote:

> John,
> 
> What's the purpose of a default frame type?  In IPX?  What does the router
> do with other frame types not specified?
> 
> Now what about with IP?  What's the purpose of the default frame type?  What
> does the router do with other frame types not explicitly specified?
> 
> 
>   -- Leigh Anne
> 
> 
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Priscilla Oppenheimer
> Sent: February 5, 2001 2:03 PM
> To: John Neiberger; [EMAIL PROTECTED]
> Subject: Re: Another 802.3 and Ethernet Question
> 
> 
> At 07:38 AM 2/5/01, John Neiberger wrote:
> >While studying for CIT, I noticed something that had never occurred to me
> >before.  The default ethernet frame type on a Cisco router is Ethernet_II,
> 
> The default frame type depends on the payload.
> 
> The default for IP is Ethernet V2 because the IP industry never adopted
> anything newer at the data-link layer. (They did adopt new physical-layer
> IEEE 802.3 standards.) Ethernet V2 has dest, source, and EtherType. If you
> were to change the frame type on the routers, you would have to change it
> on all IP hosts too, which would be a pain. Most operating systems (Windows
> 9x, Window NT, SunOS, Mac OS, etc.) default to Ethernet V2 for IP also.
> 
> If you use AppleTalk Phase 2, the default frame type is 802.3 with 802.2
> and SNAP. That's because all Macintoshes and other AppleTalk devices
> default to that frame type for AppleTalk also. (Phase 1 was Ethernet V2, by
> the way.)
> 
> If you use Novell, the default is Novell "raw," aka Ethernet_802.3 which
> has dest, source, length, immediately followed by the IPX header which
> starts with an XNS checksum, which isn't used so it's always .
> 
> The Novell default may have changed. I know Novell has been wanting to get
> with the rest of the world, plus they have been talking about actually
> using the checksum, which means they can't use the raw format. Also the raw
> format is kind of ugly because a "raw" frame arrives at a station
> configured for 802.3 with 802.2, the  looks like a global LLC (802.2)
> SAP, which means "give this frame to all services!.
> 
> Priscilla
> 
> >but the only physical interface specified by Ethernet version 2 is 50-ohm
> >coax, IIRC, similar to 10base5  On 10baseT or 100baseTX interfaces, which
> >are on every router I've ever worked with, why is the default frame type
> not
> >IEEE 802.3?
> >
> >Ethernet_II only has a type field, while IEEE 802.3 frames include 802.2
> >information.  What sorts of functionality would be available through the
> use
> >of that frame type that are not available with Ethernet_II?
> >
> >In IP-only environments, would there be a good reason to change to a
> >different frame type, or would we only benefit from a different frame type
> >in a non-IP environment or mixed environment?
> >
> >Thanks,
> >John
> >
> >
> >
> >
> >
> >___
> >Send a cool gift with your E-Card
> >http://www.bluemountain.com/giftcenter/
> >
> >
> >_
> >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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CCIE Advantages

[Lolene Hamilton-Browne]

Hi there

I wonder if anyone may know the advantages, from a CISCO support point of
view, of CCIE accreditation ? I have heard the "only ccies" can open tac
cases. Is this true ? I open tac cases for my company often, we are a gold
partner.

Thanks in advance

Joe


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Cisco 1600 Router Down/Flapping ?

[Liwanag, Manolito]

Hi Guys,

I have a 1600 Cisco router in Seattle that is giving me a headache. This
router is connected to our network via frame-relay.  From corporate, I am
not able to ping or access this router and hence the users in that remote
branch can't log into the network and browse the net.  All I-net traffic
goes through Corporate PIX.

I called MCI and they assured me that their network is fine and they even
sent a technician to the office to check the CSU/DSU and it was also OK.  I
was able to get to the router through PC anywhere and when I checked the
configuration it was fine.  The LAN side is working fine but when I do a "sh
int s0.1" it gives me a line down and protocol down. When I reload the
router it gives me Line and protocol up. I give it about 10 seconds and then
the line and protocol goes down on the serial interface.

What gives ? any ideas ?  Could it be flapping ? but then again it is not
going back up. It only goes back up when I reload. Any help is appreciated.

Thank you in advanced.

rgds,
Manolito 

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RE: Show Router Model

[jenny . mcleod]

show tech page
will page through the output.  Available in IOS 11.2, maybe earlier as
well.
Interesting thing about this command is that 'q' will not take you back to
the router prompt.  Instead, it will take you to the start of the next
section of the show tech.
JMcL
-- Forwarded by Jenny Mcleod/NSO/CSDA on 07/02/2001
08:50 am ---


Jim Dixon <[EMAIL PROTECTED]>@groupstudy.com on 07/02/2001 04:36:35
am

Please respond to Jim Dixon <[EMAIL PROTECTED]>

Sent by:  [EMAIL PROTECTED]



To:   "Liwanag, Manolito" <[EMAIL PROTECTED]>
  "'Cisco Group Study'" <[EMAIL PROTECTED]>
cc:


Subject:  RE: Show Router Model


The only way to SLOW down a show tech
command
is to capture it to a file then use an editor to search through it.

Take a look at Cisco's website for more information.
Here is one link to SHOW COMMANDS
http://www.cisco.com/univercd/cc/td/doc/product/atm/c8540/12_0/13_19/cmd_ref

/show.htm

Watch the word-
-wrap


-Original Message-
From: Liwanag, Manolito [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 10:32 AM
To: 'Cisco Group Study'
Subject: RE: Show Router Model


Hi Guys,

Thank you for unfreezing my brain. So embarrassed.  I feel that I should
return my Cisco certs

rgds,
Manolito

-Original Message-
From: Evan Francen [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 10:53 AM
To: 'Liwanag, Manolito'; 'Cisco Group Study'
Subject: RE: Show Router Model


show version, or show hardware, it will give you the base router model.
Then you can determine from the interfaces installed, what router you have.

Evan

-Original Message-
From: Liwanag, Manolito [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 9:51 AM
To: 'Cisco Group Study'
Subject: Show Router Model



Hi guys,

Can anyone tell me how to tell what model router you have from CLI ? I am
trying to figure out what model we have in a few branches remotely (through
telnet) but my brain is frozen.  I can't recall the command.  Can any one
help ?

I tried doing a sh tech but the info was flying by. How do I slow that info
down ?

Thank you in advanced.

rgds,
Manolito

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Re: CCIE Advantages

[Tony van Ree]

Hi,

Not true,  where I work nearly all of us open TAC cases and monitor them.  Some are 
done via the phone others via the CCO.  You must however be registered on the CCO to 
open up a case there.  (for us anyhow)

Teunis,
Hobart, Tasmania
Australia

On Tuesday, February 06, 2001 at 10:05:14 PM, Lolene Hamilton-Browne wrote:

> Hi there
> 
> I wonder if anyone may know the advantages, from a CISCO support point of
> view, of CCIE accreditation ? I have heard the "only ccies" can open tac
> cases. Is this true ? I open tac cases for my company often, we are a gold
> partner.
> 
> Thanks in advance
> 
> Joe
> 
> 
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Re: Cisco 1600 Router Down/Flapping ?

[Tony van Ree]

Hi,

do 'sh frame pvc'  check what the status is.  Does it indicate it is active, Deleted, 
inactive.  Is the pvc up and solid? (probably not)

Check the counters on the PVC as well.

Look at the serial interface and check for interface resets and/or transitions.  Is 
the physical link up and solid? (Maybe)

If the remote LMI and Physical are not tansitioning and the PVC is not deleted then do 
the same for the end that is being called.

Have fun

Just some thoughts.

Teunis, 
Hobart, Tasmania
Australia


On Tuesday, February 06, 2001 at 05:07:58 PM, Liwanag. Manolito wrote:

> 
> Hi Guys,
> 
> I have a 1600 Cisco router in Seattle that is giving me a headache. This
> router is connected to our network via frame-relay.  From corporate, I am
> not able to ping or access this router and hence the users in that remote
> branch can't log into the network and browse the net.  All I-net traffic
> goes through Corporate PIX.
> 
> I called MCI and they assured me that their network is fine and they even
> sent a technician to the office to check the CSU/DSU and it was also OK.  I
> was able to get to the router through PC anywhere and when I checked the
> configuration it was fine.  The LAN side is working fine but when I do a "sh
> int s0.1" it gives me a line down and protocol down. When I reload the
> router it gives me Line and protocol up. I give it about 10 seconds and then
> the line and protocol goes down on the serial interface.
> 
> What gives ? any ideas ?  Could it be flapping ? but then again it is not
> going back up. It only goes back up when I reload. Any help is appreciated.
> 
> Thank you in advanced.
> 
> rgds,
> Manolito 
> 
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External Ethernet Loopback Plug

[Matt_Younger]

To all -

Can someone please tell me how to make an external ethernet loopback plug?
If you know of a website with instructions, please include the URL.

Thanks,
Matt

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Re: CCIE Advantages

[Peter Van Oene]

Anyone with a contract or s/n can open a TAC case.  I believe CCIE's are automatically 
escalated a level should they happen to open a case.  Further, Silver and Gold 
partners need to have a certain percentage of their cases opened by CCIE's to 
demonstrate the requisite level of internal escalation (though cisco is pretty lax 
here I imagine for the big golds)

Pete


*** REPLY SEPARATOR  ***

On 2/6/2001 at 10:05 PM Lolene Hamilton-Browne wrote:

>Hi there
>
>I wonder if anyone may know the advantages, from a CISCO support point of
>view, of CCIE accreditation ? I have heard the "only ccies" can open tac
>cases. Is this true ? I open tac cases for my company often, we are a gold
>partner.
>
>Thanks in advance
>
>Joe
>
>
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Re: CCIE Advantages

[Yonkerbonk]

That's definitely not the case. It makes no sense.
Cisco is famous for great support, and denying support
to 99% of their clients is not a way to attain that
reputation.
What you can do as a CCIE though is demand to talk to
another CCIE on the TAC, someone at your level. They
assume you've already done the basic troubleshooting
and don't need to go through the basic questions. This
is, of course, if you're having problems with the CE
you're working with. 

Michael
 
--- Lolene Hamilton-Browne
<[EMAIL PROTECTED]> wrote:
> Hi there
> 
> I wonder if anyone may know the advantages, from a
> CISCO support point of
> view, of CCIE accreditation ? I have heard the "only
> ccies" can open tac
> cases. Is this true ? I open tac cases for my
> company often, we are a gold
> partner.
> 
> Thanks in advance
> 
> Joe
> 
> 
> _
> FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to
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New free application : Multicast IP to MAC converter

[Ole Drews Jensen]

Okay, I couldn't keep my programming fingers away from the keyboard, so I
created a small application this afternoon that will show you the MAC
address for the typed in IP address. You can type it in DEC or BIN.

This is version 1.00, so please ignore small errors. If you type in
non-digits in the IP octets, it will give you an error.

Should you find other errors or if you believe that the calculation is
wrong, please let me know.

Follow the Cisco King link below and click on Free Software.

Have fun,

Ole


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

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



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RE: VLANs on Catalyst 1900 Switches

[dave . goldsmith]

Tom,

Actually, I did not have to do that.  I just TFTPed the 9.00.04 EN code
right in on top of the 8.01.00 code and it came back up with VLAN support
(after turning off bridge-group mode).

Dave Goldsmith

-Original Message-
From: Tom Lisa [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 3:06 PM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: VLANs on Catalyst 1900 Switches


Dave,

Don't forget, before you put 9.00.04 Enterprise on you must upgrade the
8.01.00 Standard
to 9.00.04 Standard then make the conversion to Enterprise version.  I have
been meaning
to research why you must upgrade to latest standard before you can put on
enterprise (if
you don't already have enterprise on that is) but haven't found out yet.
Perhaps
someone else on the list knows.

Tom Lisa, Instructor, CCNA, CCAI
Community College of Southern Nevada
Cisco Regional Networking Academy



[EMAIL PROTECTED] wrote:

> Tom,
>
> That was it.  The Cat1900 with the 9.00.04 Enterprise edition s/w now has
> the vlan options available now.  The Cat1900 with the 8.01.00 s/w does
not.
> The Cat1900s used in the CCNA course my coworker just took had 8.01.07
> loaded so 8.01.00 may not support VLANs ... I'll just put the 9.00.04 code
> on it.
>
> Thanks,
>
> Dave Goldsmith
>
> -Original Message-
> From: Tom Lisa [mailto:[EMAIL PROTECTED]]
> Sent: Monday, February 05, 2001 8:10 PM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: Re: VLANs on Catalyst 1900 Switches
>
> Dave,
>
> It sounds like your switches are configured for bridge groups rather than
> VLANS.  This
> can be reset by going to the Main Menu and selecting S (System Sub-Menu).
> Then select
> option T (Reset to VLANS) to enable VLAN configuration.  Option T changes
to
> Reset to
> Bridge Groups when VLANS are enabled.
>
> HTH,
> Tom Lisa, Instructor, CCNA, CCAI
> Community College of Southern Nevada
> Cisco Regional Networking Academy
>
> [EMAIL PROTECTED] wrote:
>
> > I have 2 Cat1900 switches (WS-1912-A).  One has the 8.01.00 Standard
> Edition
> > loaded and the other has the 9.00.04 Enterprise Edition loaded.  On
> neither
> > of them are any of the VLAN commands available.
> >
> > The Cisco ICND book covers VLANs on Cat1900 switches and a co-worker
just
> > attended a GlobalKnowledge CCNA Boot Camp where they did configure VLANs
> on
> > Cat1900s (with version 8.xx loaded).
> >
> > In addition to the software version, is there a hardware issue?  Do some
> > Cat1900s not support VLANs?
> >
> > Dave Goldsmith
>
> _
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Re: Intermittent ping

[Igor Glavanic]

Check your routing table.
You could have two routes to the same destination and one of them is not
working for some reason.

It looks like that

R1#ping 1.0.0.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.0.0.1, timeout is 2 seconds:
!.!.!
Success rate is 100 percent (5/5), round-trip min/avg/max = 12/14/20 ms

Cheers


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Re: How to prevent BRI 2nd channel from coming up ???

[Igor Glavanic]

Make sure you DO NOT HAVE:

PPP MULTILINK or
DIALER LOAD-THRESHOLD ...


"kenny wong" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hi all ,
> There are 2 routers dialing to a single router's BRI
> line.
> The question is , WHen one of the dialing router call
> the answering router , how to prevent the answering
> router from activating both B channel of the BRI line
> ?
>
> In the case of both line down , i need the 2 dialing
> router to dial to the answering router.Each one use 1
> b channel .
> Please help.
>
> tks
> kenairs
>
> __
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> Yahoo! Auctions - Buy the things you want at great prices.
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Re: Multicast

[Igor Glavanic]

REAL Server ???

Real Networks Streaming Server or ???
If you talking about the obove, just give it normal IP address. Sofware on
the server should take care of the rest.
+
Configure routers for mulitcast


"thinkworker" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> We know there are some D class address if specificed for certain purpose
and some are reserved for certain service.
>
> If I want to set up a real server and use multicast, what can I do? I can
not get the D class address for my server!
>
>
>
> _
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>


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RE: Another 802.3 and Ethernet Question

[Leigh Anne Chisholm]

Yes, with respect to IPX, that's correct--and that answers my first
question.

My second question asked about what was the purpose of a default Ethernet
frame type for use with IP.  Using IPX as an analogy, does a router only
route Ethernet_II frames if no Ethernet frame type has been specified?  Does
a router drop IEEE 802.3 frames by default?  To route IEEE 802.3 frames, is
any additional configuration required?

And with that, we're lead back to John's original question: What is the
purpose of a default Ethernet frame type for IP?

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Tony van Ree
Sent: February 6, 2001 2:51 PM
To: Leigh Anne Chisholm; John Neiberger; [EMAIL PROTECTED]
Cc: Priscilla Oppenheimer
Subject: RE: Another 802.3 and Ethernet Question


Hi,

Those not specified by the router are either routed by the server or produce
IPX protol errors and are dropped.

It is important not to have the various frame types set on the servers or
service advertisers.  If for example you are normally using Novell-Ether
(802.3) and you put in a server using Netware 4.x running SAP (802.2).  Now
when you put in the first server you configure both the SAP and Novell Ether
in the server.  You have 802.3 (Novell-ether) configured in the router.
Pull out the original server and you have no network. Othen you will lose
half of your local clients.

Have lose networks and or frame types can also create some horrible little
routing loops and unwanted traffic. SAP's, RIP updates etc.

Let the router route and servers serve.

Another one that sometimes grabs you.

Teunis,
Hobart, Tasmania
Australia


On Tuesday, February 06, 2001 at 08:45:48 AM, Leigh Anne Chisholm wrote:

> John,
>
> What's the purpose of a default frame type?  In IPX?  What does the router
> do with other frame types not specified?
>
> Now what about with IP?  What's the purpose of the default frame type?
What
> does the router do with other frame types not explicitly specified?
>
>
>   -- Leigh Anne
>

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Off-Topic: MCSE 2000 Listservers?

[Lee Miller]

Hello.

I am planning on continuing my Cisco certs, however I'm going to knock out
my MCSE update to 2000 first.

My question is, does anyone know of a listserver dedicated to folks working
on their MCSE-2000, similar to these great groupstudy listservers?

Thanks for any info.

Lee Miller, MCSE,CCNA,CNE,A+


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RE: Another 802.3 and Ethernet Question

[Tony van Ree]

Hi,

I'm sorry I did not cover the rest of the ethernat frame types.  This was covered 
earlier this week.  Priscilla covered it really well in one of her replys on a similar 
question.

Teunis


On Tuesday, February 06, 2001 at 04:55:01 PM, [EMAIL PROTECTED] wrote:

> Yes, with respect to IPX, that's correct--and that answers my first
> question.
> 
> My second question asked about what was the purpose of a default Ethernet
> frame type for use with IP.  Using IPX as an analogy, does a router only
> route Ethernet_II frames if no Ethernet frame type has been specified?  Does
> a router drop IEEE 802.3 frames by default?  To route IEEE 802.3 frames, is
> any additional configuration required?
> 
> And with that, we're lead back to John's original question: What is the
> purpose of a default Ethernet frame type for IP?
> 
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Tony van Ree
> Sent: February 6, 2001 2:51 PM
> To: Leigh Anne Chisholm; John Neiberger; [EMAIL PROTECTED]
> Cc: Priscilla Oppenheimer
> Subject: RE: Another 802.3 and Ethernet Question
> 
> 
> Hi,
> 
> Those not specified by the router are either routed by the server or produce
> IPX protol errors and are dropped.
> 
> It is important not to have the various frame types set on the servers or
> service advertisers.  If for example you are normally using Novell-Ether
> (802.3) and you put in a server using Netware 4.x running SAP (802.2).  Now
> when you put in the first server you configure both the SAP and Novell Ether
> in the server.  You have 802.3 (Novell-ether) configured in the router.
> Pull out the original server and you have no network. Othen you will lose
> half of your local clients.
> 
> Have lose networks and or frame types can also create some horrible little
> routing loops and unwanted traffic. SAP's, RIP updates etc.
> 
> Let the router route and servers serve.
> 
> Another one that sometimes grabs you.
> 
> Teunis,
> Hobart, Tasmania
> Australia
> 
> 
> On Tuesday, February 06, 2001 at 08:45:48 AM, Leigh Anne Chisholm wrote:
> 
> > John,
> >
> > What's the purpose of a default frame type?  In IPX?  What does the router
> > do with other frame types not specified?
> >
> > Now what about with IP?  What's the purpose of the default frame type?
> What
> > does the router do with other frame types not explicitly specified?
> >
> >
> >   -- Leigh Anne
> >
> 
> 


--
www.tasmail.com


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RE: Off-Topic: MCSE 2000 Listservers?

[Bernard Omrani]

www.saluki.com




-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Lee Miller
Sent: Tuesday, February 06, 2001 3:56 PM
To: [EMAIL PROTECTED]
Subject: Off-Topic: MCSE 2000 Listservers?


Hello.

I am planning on continuing my Cisco certs, however I'm going to knock out
my MCSE update to 2000 first.

My question is, does anyone know of a listserver dedicated to folks working
on their MCSE-2000, similar to these great groupstudy listservers?

Thanks for any info.

Lee Miller, MCSE,CCNA,CNE,A+


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Re: NM-1E2W Module

[Brad Ellis]

Chris/Wigle,

Im getting a 2611 in this week. I have a few modules in stock that I will
try it with.  I'll use 12.1.5T IP as the version of IOS on the router.  I
will post my findings on groupstudy with the modules I have in stock.

-Brad

""Chris Best"" <[EMAIL PROTECTED]> wrote in message
00ae01c09083$e6a59260$[EMAIL PROTECTED]">news:00ae01c09083$e6a59260$[EMAIL PROTECTED]...
> Mr. Wigle,
> I have seen that link that you have seen, and am researching it with
the
> Product Managers.  I currently do not have any statement from them as to
> whether or not this is true.  So for now, I am still telling everyone that
I
> speak with that that module (NM-1FE-TX) is not supported in the 2600's.
It
> may very well be supported, but I know the NM-1FE2W is not supported.  My
> reasoning for stating this (that the NM-1FE-TX is not supported) is that
the
> version that is stated on that page (12.1.3XQ2) is not a mainline release,
> and I usually do not recommend using non-mainline releases.  As far as
> whether or not you could call up TAC with that version installed and be ok
> with it, I am uncertain.  Again, I am having to research this.
>
> Hope this helps a bit.
>
> Chris Best
> Cisco Systems
> Partner/Reseller Presales Helpline
>
> 1-800-553-6387, option 2 or
> +1-408-526-7208, option 2
> http://www.cisco.com/go/tools
> - Original Message -
> From: "Kevin Wigle" <[EMAIL PROTECTED]>
> To: "Chris Best" <[EMAIL PROTECTED]>
> Cc: <[EMAIL PROTECTED]>
> Sent: Tuesday, February 06, 2001 12:03 PM
> Subject: Re: NM-1E2W Module
>
>
> > Chris,
> >
> > I really appreciate yet another tool to look things up but my anguish
> comes
> > from finding different info on different CCO pages.
> >
> > We have a member  (Karl) on this list right now that has sent me a link
> that
> > says NM-1FE-TX is supported on the 2600.
> >
> >
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121relnt/260
> > 0/rn2600xq.htm
> >
> > This new tool (and others) say it isn't.
> >
> > He sent me a sh diag where it is happily working away.
> >
> > Now I know there is a difference in "working" and being "supported".
> >
> > I rely on CCO to give clients advice and lately I've been finding some
> > "inconsistencies"
> >
> > If it wasn't for the link enclosed above I would be happy.  However,
> > obviously "Karl" thought it was ok (due to the above link???), installed
> it
> > and it works.
> >
> > In light of the above link, maybe you could tell us if it really is
> > supported as far as TAC is concerned?
> > i.e. if I phoned TAC with a sick 2600 router and they see this NM
> installed
> > will they say "get it out of there??"
> >
> > And I really do appreciate your support here on groupstudy.
> >
> > Kevin Wigle
> > CCDP/CCNP
> > EffectiveNets
> > Cisco Partner, Premier Certified
> >
> >
> > - Original Message -
> > From: "Chris Best" <[EMAIL PROTECTED]>
> > To: "Kevin Wigle" <[EMAIL PROTECTED]>
> > Cc: <[EMAIL PROTECTED]>
> > Sent: Tuesday, February 06, 2001 3:03 PM
> > Subject: Re: NM-1E2W Module
> >
> >
> > > Mr. Wigle,
> > > I couldn't help but notice your frustration with this topic.  Here
> is
> > a
> > > link that should be of service to you:
> > >
> > > http://www.cisco.com/pcgi-bin/finder/msbsearch.pl
> > >
> > > This link is the "Solution Finder for Modular Routers"
> > >
> > > You would be best served by doing the "Search 2" by part number.  Plug
> > your
> > > part number in, and you will find what routers support that particular
> > part
> > > number.
> > >
> > > Hope this is of help to you and everyone else on this mailing list.
> > >
> > > Chris Best
> > > Cisco Systems
> > > Partner/Reseller Presales Helpline
> > >
> > > 1-800-553-6387, option 2 or
> > > +1-408-526-7208, option 2
> > > http://www.cisco.com/go/tools
> > > - Original Message -
> > > From: "Kevin Wigle" <[EMAIL PROTECTED]>
> > > To: "Jon Wagner" <[EMAIL PROTECTED]>; "'Warrick FitzGerald'"
> > > <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> > > Sent: Tuesday, February 06, 2001 10:10 AM
> > > Subject: Re: NM-1E2W Module
> > >
> > >
> > > > this is what I get:
> > > >
> > > > As this page was linked to Cisco CCO from another web site -
> > > >
> > > >
> > > > Unknown referrer
> > > > you should notify the [EMAIL PROTECTED]
> > > > or similar responsible person for the content or search feature of
> that
> > > > site,
> > > > of the incorrect link to http://www.cisco.com/go/modules
> > > >
> > > > Kevin Wigle
> > > >
> > > >
> > > > - Original Message -
> > > > From: "Jon Wagner" <[EMAIL PROTECTED]>
> > > > To: "'Warrick FitzGerald'" <[EMAIL PROTECTED]>;
> > > > <[EMAIL PROTECTED]>
> > > > Sent: Tuesday, February 06, 2001 12:17 PM
> > > > Subject: RE: NM-1E2W Module
> > > >
> > > >
> > > > > For a complete list of every module and it's requirements, you can
> > find
> > > > out
> > > > > at
> > > > > http://www.cisco.com/go/modules
> > > > >
> > > > > Every module is listed under 'solution finder' and it contains
> > hardwar

RE: Another 802.3 and Ethernet Question

[Leigh Anne Chisholm]

I did read Priscilla's post.  She addressed the issue of WHY Ethernet_II is
the default frame type selected for IP, but didn't examine why IP requires a
default frame type in the first place.  IPX uses a default frame type
because different Ethernet encapsulations are not able to co-exist within an
IPX network -- however different Ethernet encapsulations (Ethernet_II and
Ethernet 802.3) ARE able to co-exist within an IP network.  As such, what is
the importance of a default Ethernet encapsulation for IP?

That's what I've been challenging John to think about.  Once he understands
where the default Ethernet encapsulation comes into play, he could answer
his question as to whether there "would there be a good reason to change to
a
different frame type, or would we only benefit from a different frame type
in a non-IP environment or mixed environment".




-Original Message-
From: Tony van Ree [mailto:[EMAIL PROTECTED]]
Sent: February 6, 2001 5:06 PM
To: [EMAIL PROTECTED]; John Neiberger; [EMAIL PROTECTED]
Subject: RE: Another 802.3 and Ethernet Question


Hi,

I'm sorry I did not cover the rest of the ethernat frame types.  This was
covered earlier this week.  Priscilla covered it really well in one of her
replys on a similar question.

Teunis


On Tuesday, February 06, 2001 at 04:55:01 PM, [EMAIL PROTECTED] wrote:

> Yes, with respect to IPX, that's correct--and that answers my first
> question.
>
> My second question asked about what was the purpose of a default Ethernet
> frame type for use with IP.  Using IPX as an analogy, does a router only
> route Ethernet_II frames if no Ethernet frame type has been specified?
Does
> a router drop IEEE 802.3 frames by default?  To route IEEE 802.3 frames,
is
> any additional configuration required?
>
> And with that, we're lead back to John's original question: What is the
> purpose of a default Ethernet frame type for IP?
>
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Tony van Ree
> Sent: February 6, 2001 2:51 PM
> To: Leigh Anne Chisholm; John Neiberger; [EMAIL PROTECTED]
> Cc: Priscilla Oppenheimer
> Subject: RE: Another 802.3 and Ethernet Question
>
>
> Hi,
>
> Those not specified by the router are either routed by the server or
produce
> IPX protol errors and are dropped.
>
> It is important not to have the various frame types set on the servers or
> service advertisers.  If for example you are normally using Novell-Ether
> (802.3) and you put in a server using Netware 4.x running SAP (802.2).
Now
> when you put in the first server you configure both the SAP and Novell
Ether
> in the server.  You have 802.3 (Novell-ether) configured in the router.
> Pull out the original server and you have no network. Othen you will lose
> half of your local clients.
>
> Have lose networks and or frame types can also create some horrible little
> routing loops and unwanted traffic. SAP's, RIP updates etc.
>
> Let the router route and servers serve.
>
> Another one that sometimes grabs you.
>
> Teunis,
> Hobart, Tasmania
> Australia


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Re: VLANs on Catalyst 1900 Switches

[Tom Lisa]

Dave,

It _used_ to be that way, I think.  I went to CCO and couldn't find the page that used
to say that.  Oh well, I'll chalk it up to my having had another "senior moment."  I
knew I shouldn't have stopped eating those blueberries!! :)

Tom Lisa, Instructor, CCNA, CCAI
Community College of Southern Nevada
Cisco Regional Networking Academy


[EMAIL PROTECTED] wrote:

> Tom,
>
> Actually, I did not have to do that.  I just TFTPed the 9.00.04 EN code
> right in on top of the 8.01.00 code and it came back up with VLAN support
> (after turning off bridge-group mode).
>
> Dave Goldsmith
>
> -Original Message-
> From: Tom Lisa [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 06, 2001 3:06 PM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: Re: VLANs on Catalyst 1900 Switches
>
> Dave,
>
> Don't forget, before you put 9.00.04 Enterprise on you must upgrade the
> 8.01.00 Standard
> to 9.00.04 Standard then make the conversion to Enterprise version.  I have
> been meaning
> to research why you must upgrade to latest standard before you can put on
> enterprise (if
> you don't already have enterprise on that is) but haven't found out yet.
> Perhaps
> someone else on the list knows.
>
> Tom Lisa, Instructor, CCNA, CCAI
> Community College of Southern Nevada
> Cisco Regional Networking Academy
>
> [EMAIL PROTECTED] wrote:
>
> > Tom,
> >
> > That was it.  The Cat1900 with the 9.00.04 Enterprise edition s/w now has
> > the vlan options available now.  The Cat1900 with the 8.01.00 s/w does
> not.
> > The Cat1900s used in the CCNA course my coworker just took had 8.01.07
> > loaded so 8.01.00 may not support VLANs ... I'll just put the 9.00.04 code
> > on it.
> >
> > Thanks,
> >
> > Dave Goldsmith
> >
> > -Original Message-
> > From: Tom Lisa [mailto:[EMAIL PROTECTED]]
> > Sent: Monday, February 05, 2001 8:10 PM
> > To: [EMAIL PROTECTED]
> > Cc: [EMAIL PROTECTED]
> > Subject: Re: VLANs on Catalyst 1900 Switches
> >
> > Dave,
> >
> > It sounds like your switches are configured for bridge groups rather than
> > VLANS.  This
> > can be reset by going to the Main Menu and selecting S (System Sub-Menu).
> > Then select
> > option T (Reset to VLANS) to enable VLAN configuration.  Option T changes
> to
> > Reset to
> > Bridge Groups when VLANS are enabled.
> >
> > HTH,
> > Tom Lisa, Instructor, CCNA, CCAI
> > Community College of Southern Nevada
> > Cisco Regional Networking Academy
> >
> > [EMAIL PROTECTED] wrote:
> >
> > > I have 2 Cat1900 switches (WS-1912-A).  One has the 8.01.00 Standard
> > Edition
> > > loaded and the other has the 9.00.04 Enterprise Edition loaded.  On
> > neither
> > > of them are any of the VLAN commands available.
> > >
> > > The Cisco ICND book covers VLANs on Cat1900 switches and a co-worker
> just
> > > attended a GlobalKnowledge CCNA Boot Camp where they did configure VLANs
> > on
> > > Cat1900s (with version 8.xx loaded).
> > >
> > > In addition to the software version, is there a hardware issue?  Do some
> > > Cat1900s not support VLANs?
> > >
> > > Dave Goldsmith
> >
> > _
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
> _
> 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: Show Router Model

[Brant Stevens]

show version, or show boot


Brant I. Stevens
Internetwork Solutions Engineer
Thrupoint, Inc.
545 Fifth Avenue, 14th Floor
New York, NY. 10017
646-562-6540

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Liwanag, Manolito
Sent: Tuesday, February 06, 2001 10:51 AM
To: 'Cisco Group Study'
Subject: Show Router Model



Hi guys,

Can anyone tell me how to tell what model router you have from CLI ? I am
trying to figure out what model we have in a few branches remotely (through
telnet) but my brain is frozen.  I can't recall the command.  Can any one
help ?

I tried doing a sh tech but the info was flying by. How do I slow that info
down ?

Thank you in advanced.

rgds,
Manolito

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RE: Possible BCMSN Errata?? CORRECTION

[Ole Drews Jensen]

I'm sorry, but I just realized that I made a mistake in my answer to you.

The first four bits in octet 1 is in use for 1110 (Class D), which leaves
four bits plus the bit that is cleared in the second octet. That gives five
bits, with 32 possible combinations. If it had been six bits, it would have
given you 64 possible combinations.

Hth,

Ole

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



> -Original Message-
> From: Ole Drews Jensen 
> Sent: Tuesday, February 06, 2001 2:29 PM
> To:   'jim klane'; Ole Drews Jensen
> Cc:   '[EMAIL PROTECTED]'
> Subject:  RE: Possible BCMSN Errata??
> 
> You can probably find a lot of good sites about Multicast if you start
> searching for them on the web.
>  
> I thought the Multicast IP to MAC address in the BCMSN book by Karen Webb
> was a little confusing, but after I read the LAN switching book by Clark
> and Hamilton, I understood exactly what to do.
>  
> If you picture an IP address as octet1.octet2.octet3.octet4, the way to
> convert it to a MAC address is:
>  
> 1) Take (octet2, octet3 and octet4)
> 2) AND octet2 with 127 (or subtract 128 if octet2 >= 128)
> 3) Convert each octet to hexadecimal values
> 4) MAC = 01.00.5E.new-octet2.new-octet3.new-octet4
>  
> Let's take your example 224.0.165.45
>  
> 1) 0.165.45
> 2) 0.165.45
> 3) 00.A5.2D
> 4) MAC = 01.00.5E.00.A5.2D
>  
> As you can see on this method, 224 uses the 3 first bits in octet1 to
> specify it self as a Multicast IP address, which leaves 5 bit left for
> addresses. These 5 bits plus the 1 bit of octet2 that is cleared gives you
> 6 bits or 32 different IP addresses that will end up with the same MAC
> address.
>  
> Let's take IP address 225.128.165.45 and do the same 4 steps:
>  
> 1) 128.165.45
> 2) 0.165.45
> 3) 00.A5.2D
> 4) MAC = 01.00.5E.00.A5.2D
>  
> This means that you have to think about this before you assign your
> Multicast IP addresses to networks where you have more than one group,
> because you could end up with two different groups pointing to the same
> physical address.
>  
> Hth,
>  
> Ole
> 
> 
> 
>  
>  Ole Drews Jensen 
>  Systems Network Manager 
>  CCNA, MCSE, MCP+I 
>  RWR Enterprises, Inc. 
>  [EMAIL PROTECTED] 
>   http://www.CiscoKing.com  
>  
>  NEED A JOB ??? 
>    
>  
> 
>   -Original Message-
>   From: jim klane [mailto:[EMAIL PROTECTED]]
>   Sent: Tuesday, February 06, 2001 2:04 PM
>   To: [EMAIL PROTECTED]
>   Subject: RE: Possible BCMSN Errata??
>   
>   
> 
>   do you have a link on thie multicast stuff?
> 
>    
> 
>   let me know 
> 
>    
> 
>   jim 
>   
>   
> 
>   >From: Ole Drews Jensen 
>   >Reply-To: Ole Drews Jensen 
>   >To: "'Paul Mandella'" , [EMAIL PROTECTED] 
>   >Subject: RE: Possible BCMSN Errata?? 
>   >Date: Tue, 6 Feb 2001 13:20:31 -0600 
>   > 
>   >I do not have the book in front of me, but yes, the given binary IP
> address 
>   >is 224.0.165.45 and the MultiCast MAC will be 01-00-5E-00-09-2D. 
>   > 
>   >Ole 
>   > 
>   > 
>   > Ole Drews Jensen 
>   > Systems Network Manager 
>   > CCNA, MCSE, MCP+I 
>   > RWR Enterprises, Inc. 
>   > [EMAIL PROTECTED] 
>   > http://www.CiscoKing.com 
>   > 
>   > NEED A JOB ??? 
>   > http://www.oledrews.com/job 
>   > 
>   > 
>   > 
>   > 
>   >-Original Message- 
>   >From: Paul Mandella [mailto:[EMAIL PROTECTED]] 
>   >Sent: Tuesday, February 06, 2001 12:48 PM 
>   >To: [EMAIL PROTECTED] 
>   >Subject: Possible BCMSN Errata?? 
>   > 
>   > 
>   >Hello All. While working on examples of converting Multicast IP
> addresses to 
>   >Multicast MAC addresses in the Cisco book I came across one that
> doesn't 
>   >seem to be correct. I ask for opinions on the following to possibly
> save my 
>   >sanity on this one. Thanks 
>   > 
>   >The IP address in the book is 224.0.9.45 
>   >It is shown as 1110    1010 0101 0010 1101 
>   > 
>   >Seems to me that this IP should read 224.0.165.45 and this would
> work out to 
>   >the Multicast MAC being 01-00-5e-00-a5-2d and not the
> 01-00-5e-00-09-2d 
>   >given in the book. 
>   > 
>   >Did I just lose my mind on this one?? I have not found errata on
> Cisco Press 
>   >site that corrects this. Thanks for any input 
>   > 
>   >Paul 
>   > 
>   > 
>   

RE: Off-Topic: MCSE 2000 Listservers?

[Pierre-Alex]

Try http://peach.ease.lsoft.com/archives/winnt-l.html

If you are good  trye  www.experttraining.net

They offer a MCSE Windows 2000 boot camp for $2500 until March 5.

Regards,

Pierre-Alex

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Lee Miller
Sent: Tuesday, February 06, 2001 5:56 PM
To: [EMAIL PROTECTED]
Subject: Off-Topic: MCSE 2000 Listservers?


Hello.

I am planning on continuing my Cisco certs, however I'm going to knock out
my MCSE update to 2000 first.

My question is, does anyone know of a listserver dedicated to folks working
on their MCSE-2000, similar to these great groupstudy listservers?

Thanks for any info.

Lee Miller, MCSE,CCNA,CNE,A+


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Re: External Ethernet Loopback Plug

[Tony van Ree]

Hi,

I don't know that making a loopback is a good idea.  There is a fair chance you'll let 
the smoke out of the interface chips.  This makes them unusable.  I also don't know 
how you would address such a thing.

Most IP stacks can be tested by pinging yourself.  There are various bits of software 
around that do testing of NIC's.  There are a number of packages that inject traffic 
onto networks that will allow testing.

If you really want to send something up itself you could try making a cable that 
connects pin 1 - 3 and pin 2 - 6.  What it will do is not necessarily what you need.  
But, don't let the smoke out of the interface chips.

Teunis
Hobart, Tasmania
Australia


On Tuesday, February 06, 2001 at 04:48:43 PM, [EMAIL PROTECTED] wrote:

> To all -
> 
> Can someone please tell me how to make an external ethernet loopback plug?
> If you know of a website with instructions, please include the URL.
> 
> Thanks,
> Matt
> 
> _
> FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
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> 
> 


--
www.tasmail.com


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RE: Off-Topic: MCSE 2000 Listservers?

[Pierre-Alex GUANEL]

Try http://peach.ease.lsoft.com/archives/winnt-l.html

If you are good  try  www.experttraining.net 

They offer a MCSE Windows 2000 boot camp for $2500 until March 5. 

Regards,

Pierre-Alex

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Lee Miller
Sent: Tuesday, February 06, 2001 5:56 PM
To: [EMAIL PROTECTED]
Subject: Off-Topic: MCSE 2000 Listservers?


Hello.

I am planning on continuing my Cisco certs, however I'm going to knock out
my MCSE update to 2000 first.

My question is, does anyone know of a listserver dedicated to folks working
on their MCSE-2000, similar to these great groupstudy listservers?

Thanks for any info.

Lee Miller, MCSE,CCNA,CNE,A+


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Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]


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