iBGP next hop and multi-access media

Mon Oct 7 04:28:40 UTC 2002

On Mon, 7 Oct 2002, Alex Rubenstein wrote:

> I've been doing ip route statements going on 8 years now, and I can't
> imagine why ever -- and how it would even work -- you'd want to ip route a
> netblock with a next hop of a multi-access brandcast media. As in, the
> next hop is still truly undetermined.
> 
> I guess I don't know this because I've never tried it. But, how does the
> router determine where to send the packets for a route statement as
> specified above (ip route a.b.c.d e.f.g.h f0/0) ?

When you setup a secondary ip on an interface
 int fa0/0
   ip address a.b.c.d e.f.g.h secondary

How does it determine where to send the packets?  ARP.
Which is the same as adding the route described above.

-Ralph