North American Network Operators Group

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Re: problem with BGP or I am an Idiot

  • From: Stephen Wilcox
  • Date: Fri Nov 17 10:59:11 2006

On Fri, Nov 17, 2006 at 06:44:11AM -0800, Philip Lavine wrote:
> To all,
> Probabaly the the latter; however here is the situation. I am advertising a rte 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 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 rte I am unable to see the rte "% Network not in table". I know rte is valid it shows up in looking glass and ISP_A has it on the peer recevies full Internet rtes from. Further verification: I add a static rte on rtr to 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 .*

you will not accept a route with your AS in teh path

you can override it (on cisco) with allow-own-as