I have several servers and 2 different routers with different internet connectivity and I want the servers to have the ability to access the internet if the main gateway goes down.
For example the main router is 192.168.10.254
The second router is 192.168.10.1
The routers are located in 2 different sites (Production and DR) and I want to make sure that the servers can access the internet if the main router will be unavailable for some reason.
What should I do on the servers? 2 default gateways? Add a second static route? How will the OS know that the main gateway is down?