RE: How to know the remote-as at your neighbor configured?

From: Scott Morris (swm@emanon.com)
Date: Fri Nov 04 2005 - 10:35:33 GMT-3


Very true, and console logging is on by default. But I figured with the
(rhetorical) question, it would illicit a response of "I haven't done
anything with it yet". ;)

  _____

From: Jian Gu [mailto:guxiaojian@gmail.com]
Sent: Friday, November 04, 2005 2:40 AM
To: Scott Morris
Cc: Venkataramanaiah.R; ccielab@groupstudy.com
Subject: Re: How to know the remote-as at your neighbor configured?

I don't think you need to run any debugs, just turn on console log and
configure a random AS number, you will get an error message saying wrong-as
followed by a bunch of HEX numbers, the first two bytes should tell you the
right AS number that should be configured.

On 11/3/05, Scott Morris <swm@emanon.com> wrote:

Are there any debugs that you are running? What do they tell you?

Scott

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Venkataramanaiah.R
Sent: Friday, November 04, 2005 2:14 AM
To: ccielab@groupstudy.com
Subject: How to know the remote-as at your neighbor configured?

Hi,

     I do not have access to the ISP router. I know the remote BGP peer IP
address, but i do not know what AS# the remote peer has configured towards
me. Is there a way to find this information?

for eg.,

my router config is..

router bgp xyz
neighbor 1.1.1.1 remote-as 222

ISP configs

router bgp 222
neighbor 1.1.1.2 remote-as xy

I want to know what is the value of xy, without logging into the ISP router.
Is there a way to find this out on my router, by enabling any BGP debugs or
will any show command help?

-Venkat



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