From: Tarun Pahuja (pahujat@gmail.com)
Date: Sun Nov 04 2007 - 14:01:55 ART
George,
Let me teach you a trick to tackle similar problems. If you do
not know the AS # of the remote peer, turn on notification on the router and
you will see a similar message:
*Sep 30 11:37:40.741: %BGP-3-NOTIFICATION: sent to neighbor 10.10.10.2 2/2
(peer in wrong AS) 2 bytes *0384
*FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 002D 0104 0384 00B4 9601 0202 1
002 0601 0400 0100 0102 0280 0002 0202 00
The Hex Value in the Bold will actuall tell you the right AS you should be
peering with ;-)
You can use the Calculator in Windows XP in scientific mode, enter this
value and then just hit decimal value to get the AS value in decimals.
HTH,
Tarun
On 11/4/07, George Goglidze <goglidze@gmail.com> wrote:
> Hello all,
>
> I'm doing some ipexpert labs, and in one of them, they actually don't tell
> you in what AS you need to peer with BB3 from R9.
> I can see packets coming on 224.0.0.10, but I was not able to find out
what
> AS i need to be in, I turned on all kind of debugs of eigrp.
> as in bgp for example, if you're in wrong AS it tells you, "neighbor in
> wrong as" blahblah, it is in as XXX.
>
> I could just enter into BB3 I guess, in my dynamips it's not a big
problem,
> but on the lab, If I have something like that,
> I don't want to have to try all AS-es from <1-65535> Autonomous system
> number.
>
>
> It's ipexpert's section 25 lab.
>
> Many thanks to everyone and regards,
>
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