RE: iBGP next hop and multi-access media

From: Charles Youse (no email)
Date: Sun Oct 06 2002 - 21:17:39 EDT


Really, the only way this could happen is if Router B is not announcing its
routes to 172.16.16/24 and Router A has a default route to its Ethernet
interface.

C.

-----Original Message-----
From: Ralph Doncaster [mailto:]
Sent: Sunday, October 06, 2002 9:06 PM
To: E.B. Dreger
Cc:
Subject: Re: iBGP next hop and multi-access media

> RD> When I setup a situation like the above, with Router B advertising
> RD> the 172.16.16.0/24 to router A, router A sees a next hop of
> RD> 10.10.10.2. This is not good since packets from A going to the
> RD> 172.16.16 subnet get sent to Router B, which then ARPs the
> RD> desitnation, instead of just being ARPed by router A.
>
> Is this what you're trying to do:
>
> route-map <foo>
> match <whatever>
> set ip next-hop <something>

Not really, what I want is router A to learn that ther is no next hop IP-
the subnet is on the local ethernet.

-Ralph








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