From: Victor Cappuccio (cvictor@protokolgroup.com)
Date: Sat Sep 02 2006 - 17:45:16 ART
Yes you can use deb ip bgp
You would receive a output like
BGP: 3.3.3.3 bad OPEN, remote AS is 51, expected 50
HTH
Victor.-
-----Mensaje original-----
De: nobody@groupstudy.com [mailto:nobody@groupstudy.com] En nombre de
jnkmail4eva@yahoo.com
Enviado el: Sabado, 02 de Septiembre de 2006 03:58 p.m.
Para: ccielab@groupstudy.com
Asunto: BGP question
I am trying to cover bgp this weekend and came across quite a tricky issue :
Router A and Router B use to have bgp neighbor relationship.
Router A has new admin and new AS. It has no control over router B.
Router A reconfigures his bgp configuration with new AS but in order to keep
the old neighbor relationship with B it uses the local AS command.
But, the new admin on router A does not know the old AS.
I have tried several ways to identify the AS from debug commands without any
success.
BGP notification on A "wrong AS message" only shows part of the payload of
the first packet.
BGP notification on B "wrong AS message" shows the entire payload of two
packets inclusive of the correct AS. Since I don't have access to router B I
can't see the notification mesage.
I wish routers ran etherreal ..:-)
Also, no confederations to be used.
Anyone like to take a byte at it ...
This archive was generated by hypermail 2.1.4 : Sun Oct 01 2006 - 16:55:39 ART