I'm trying to set up an internet redudancy plan. i have 3 sites all connected
via T1's. each site has its own internet connection(frame relay) and i'd like to
set it up so if one site's firewall(sonicwall and watchguard) go down or the
internet link goes down, internet traffic will automagically be rerouted via one
of the other site's internet connection. i'm avoiding bgp because i have no experince with it. all my routers run eigrp. i thought using "ip default-network" would work. but
if eigrp neighbors need to be on the same subnet, this won't help me. also eigrp
would only work if the whole router went down(rare). i want the routes to change
if the serial link is down.

does anyone know of a way to make this work? is it possible? thanks