[52652] in North American Network Operators' Group
Re: iBGP next hop and multi-access media
daemon@ATHENA.MIT.EDU (John M. Brown)
Tue Oct 8 10:09:36 2002
Date: Tue, 8 Oct 2002 07:03:48 -0700
From: "John M. Brown" <john@chagresventures.com>
To: "Christopher L. Morrow" <chris@UU.NET>
Cc: Ralph Doncaster <ralph@istop.com>,
"E.B. Dreger" <eddy+public+spam@noc.everquick.net>,
"nanog@merit.edu" <nanog@merit.edu>
In-Reply-To: <Pine.GSO.4.33.0210070115130.23753-100000@rampart.argfrp.us.uu.net>; from chris@UU.NET on Mon, Oct 07, 2002 at 01:15:59AM +0000
Errors-To: owner-nanog-outgoing@merit.edu
With the right MASK they could be local :)
On Mon, Oct 07, 2002 at 01:15:59AM +0000, Christopher L. Morrow wrote:
>
>
> On Sun, 6 Oct 2002, Ralph Doncaster wrote:
>
> >
> > > RD> When I setup a situation like the above, with Router B
> > > RD> advertising the 172.16.16.0/24 to router A, router A sees a
> > > RD> next hop of 10.10.10.2. This is not good since packets from
> > > RD> A going to the 172.16.16 subnet get sent to Router B, which
> > > RD> then ARPs the desitnation, instead of just being ARPed by
> > > RD> 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.
> >
>
> (except that 172.x.x.x isn't 'local' to the 10.x.x.x network, even if they
> are connected to the same physical network)
>
