From: Schoeneman Steve (gs@grimnotions.com)
Date: Fri Oct 26 2007 - 12:30:23 ART
How about a GRE tunnel?
Steve
On Oct 26, 2007, at 8:06 AM, kuldip singh wrote:
> Hi
>
>
> R7 (AS 2700)
>
> |
>
> |
>
> |
>
> R8 (AS 18 )
>
> |
>
> |
>
> |
>
> R9 (AS 2700)
>
>
>
> BGP Setup:
>
> If R7 is sending bgp prefixes to R9 in IBGP and R9 is neighbor with
> R8 EBGP.
> The above diagram
>
> shows the physical connections on the router.
>
> The problem is when you try to ping
>
> the prefixes received from R7 from R9, it causes a loop. R8 has
> learned the
> prefix from R9 and the next hop is R9, the only path back for R9 is
> via R8
>
> If I move R8 into AS 2700 (IBGP between R7 and R8 , R9 into AS (18)
> EBGP
> between R8-R9 it all works fine.
>
>
>
> The only way around this I can see is by setting the next hop on the
> prefixes being received by R8 to R7.
> Can anybody see any other way of doing this.
>
>
> Thanks
>
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