Is it possible to use a WR21 with 2 ethernet port to provide failover from a cable/dsl Internet connection? I want the cable/dsl to be the primary Internet connection and the cellular to be the failover. I only have a few embedded devices on the LAN side.
I assume the WAN(cable/dsl) would be LAN-0 and the local network would be LAN-1?
Is there any app note or documentation that would help with setup?