I'm designing a network that has 3 satellite offices, VPN'ing to the HQ's building (approx 100 users total).
The three offices have a 8Mb Comcast cable internet connection and 1700 series routers.
The HQ building has a Comcast Cable internet connection and AT&T DSL connection.
I'd like to come up with a solution to offer automatic failover if the cable took a dive.
If it makes a difference, I'm considering wifi v/s dsl as a failover in case all cables are interrupted at the HQ building.
What type of router/firewall would you recommend?