Cory,
It works on broadcast networks because proxy arp is on by default.
Meaning, when the packet wanting to leave the router needs a MAC address
for encapsulation, the router has to stop and send an arp request to ask
"who has this route?". All the routers on that segment will then have to
process that arp request, and whoever replies first will be used until
the arp cache expires.
Design-wise, it's a horrible thing to do as it steals bandwidth from the
wire _and_ processing cycles from every gateway on the segment. But it
works.
Chers! (and Cheers!)
"Stull, Cory" wrote:
>
> I know I'm showing my ignorance here but I'm tired of trying to find the
> answer on CCO. Must be looking in the wrong places.
>
> I just saw a Boson question asking about ip route 0.0.0.0 0.0.0.0 int
> ethernet0
>
> I thought you could only point static routes like that out of point to point
> interfaces? For example: ip route 0.0.0.0 0.0.0.0 int ser0
>
> Cory
>
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