I'm trying to come up with a way to make our router have two paths to the same internal network. In case one switch fails, everything can still get to the router through the other switch. Everything behind the switches has a cat connection to both switches.
It's like this:
Everything on the switches uses a 10.10.1.1 or 172.16.1.1 address on the router as it's default gateway. (one subnet is data, other's voice)
How can I setup the router so both those addresses can be assigned either at the interface, sub-interface, or something else, and both e/0 and e/1 can utilize them? Is this possible?