Re: Tricky BGP into IGP Question

[Paul Donner <pdonner () cisco com>]

turn synch off.
make sure bgp next-hop is propagated (1->2a->2b/4->3).
do not redistribute BGP=>IGP.


At 03:26 PM 1/23/01 -0800, you wrote:
> What is the preferred way to get transit customers routing information into
> your IGP so that BGP will announce the route to it's neighbors.  
>
> 1===2a===2b====3
>    |
>    4
>
> 1 is the customer, announcing to 2a, who propogates 1's route to 2b and to
> 4.  2b will not announce the route to 3 as it doesn't have a route in it's
> routing table for 1's route.  I was thinking about redistributing bgp into
> my igp using a route-map based on as-path filter, but that seems somewhat
> kludgy.  What are you all doing to accomplish this or am I just missing
> something here?
>
> Thanks,
>
> --Tim
>
> =============================================
>      Timothy M. Wolfe  CCNA, NSA 
> Sr. Security Engineer  tim () ignw com
>   InfoGroup Northwest  541.485.0957 x108
> =============================================

Paul G. Donner
 Consulting Engineering
 Office of the CTO
 Internet Architecture
ciscoSystems, Inc.