I have a bunch of internal computers, accessing a specific DNS server (internal Server). I'd like to setup some redundancy, in the event that DNS Server goes down, and quickly set routes, at the router level to forward any traffic destined for the DNS Server (10.0.1.2) to (8.8.8.8) at the router level. Is that possible? I'm using Watchguard, but i'm not necessarily looking for a router specific answer.
For example -
Client sends a DNS request to 10.0.1.2
The router, see's this, and re-routes to 8.8.8.8
instead of 10.0.1.2