Media for OSPF multiple paths and gateway of last resorts

OSPF multiple paths and gateway of last resorts

I setup my lab routers for ospf. In which I have formed adjacencies with my main router and remote router via serial link. All routes fine, I set a gateway of last resort on my main router to the interface of my VZ FiOS router and able to get out to the internet. I setup the nat correctly on the serial and ethernet interfaces and set a gateway of last resort on my remote router to the ip address of the main router serial interface. Hence I able able to get internet access from my remote segment.

I added a second serial line connection in which I established the proper connections and have two ospf paths between my routers and all the proper adjacencies have formed. If I kill the first serial link that has the gateway of last resort set on, I still have connectivity to my routers but no internet access from the remote router.

Hence, how to I setup up my remote router so I still have internet access if the serial interface is down that the gateway of last resort static route is set for?

Thanks in advance for any guidance.