I am testing this setup in a LAB environment.
I have 2 ISPs BSNL & AIRTEL connected to Gateway Router 1 and Gateway Router 2 respectively. I also have 2 Core routers. I am running OSPF in Gateway Router 1, Gateway Router 2, Core Router-1 and Core Router-2.
I configured default-information originate command in both the Gateway Router-1 and Gateway Router-2. It perfectly advertising default routers in Core-1 and Core-2 Routers.
But i want this to work in different way as i will explain now.
1. When Gateway Router 1 advertise default route to Core-1, it should adverise with metric 10 and whereas when it advertise to Core-2 it should advertise with metric 100.
2. When Gateway Router 2 advertise default route to Core-2, it should adverise with metric 10 and whereas when it advertise to Core-1 it should advertise with metric 100.
Thus Core-1 will have default route pointing to Gateway-1 and Core-2 will have default route pointing to Gateway-2
I Hope i tried to explain the scenario in detail.
Looking forward for help