I have one ISP connection connected directly into a single 877 router (Router A).
I need to install a second router (Router B) to provide redundancy in case Router A fails. Router A has an internal ip of 192.168.0.3 which is the PC's default gateway.
Is it possible to set them up so that if A fails B automatically kicks in, uses the ISP's connection and an IP of 192.168.0.3 so users dont experience any downtime?
I know Hot Standby Router Protocol is an option.