iBGP next hop and multi-access media

Sun Oct 6 17:49:05 UTC 2002

Can you create another segment with 172.16.16? May be another dotq1q
interface?.

Regards
Ezequiel

On Sun, 2002-10-06 at 13:44, Ralph Doncaster wrote:
> 
> Background: 
> Router A and B are connected via a common ethernet segment 1. Router A
> uses 10.10.10.1/30, and Router B uses 10.10.10.2/30. Router B also has
> another subnet configured for ethernet segment 1; 172.16.16.0/24.
> 
> When I setup a situation like the above, with Router B advertising the
> 172.16.16.0/24 to router A, router A sees a next hop of 10.10.10.2.  This
> is not good since packets from A going to the 172.16.16 subnet get sent to
> Router B, which then ARPs the desitnation, instead of just being ARPed by
> router A.
> 
> I don't want to turn on ICMP redirects on B since they're insecure and
> ugly.  I've also made sure I'm not using next-hop self.  Is there a way to
> make this work?
> 
> Ralph Doncaster
> principal, IStop.com 
> 
> 
> 