problem with BGP or I am an Idiot

Bruce Pinsky bep at whack.org
Fri Nov 17 14:57:26 UTC 2006


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Philip Lavine wrote:
> To all,
> 
> Probabaly the the latter; however here is the situation. I am advertising a rte 1.1.1.1 via BGP to the Internet via ISP_A via my location in NJ. At my other location in CA where I am advertising another rte 2.2.2.2 via BGP to the Internet via the same ISP_A. I am using the same AS for both routes. 
> 
> For some reason on my rtr advertising the 2.2.2.2 rte I am unable to see the 1.1.1.1 rte "% Network not in table". I know 1.1.1.1 rte is valid it shows up in looking glass and ISP_A has it on the peer 2.2.2.2 recevies full Internet rtes from. Further verification: I add a static rte on 2.2.2.2 rtr to 1.1.1.1 and its routable???
> 
> How is this possible? I have the following filters but I removed them and it seems to not make a diff.
> OUTBOUND - ip as-path access-list 1 permit ^$
>                      ip as-path access-list 1 deny .*
> INBOUND - ip as-path access-list 2 permit .*
> 

Loop protection.  Throw away any route I hear from someone else with my AS.

- --
=========
bep

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