I have a 7206 router with 3 FE100 interfaces. I have 1x interface connected to one wireless backhaul (this link connects to another 3550 L3 switch ---> 7206 router ---> DS3 to our core 7507 router
Another interface is connected to a different wireless backhaul which connects to a fiber 3400 switch ---> fiber link ---> to our core 7507 router.
I will be configuring the third FE100 interface on this 7206 router for another LAN segment for customers. I need to have this 7206 configured that if one interface fails the other routes all traffic out one of the other interfaces. Right now all our IP subnets are statically routed to this location.
I am not sure what to use for redundant routing. Should I use Eigrp, or policy based routing. I can not reconfigure our entire network to make this happen. Unless, it is absolutly neccessary.