Here is my set up:
Its a square. Each link is a Ten gig.
Each router is running ospf and has an OSPF adjacency with its directly connected neighbor.
R1 and R2 have static routes in their RIB. R1 learns its default from the ISP and R2 learns it from R1. Each originates a default route with the default-information originate command.
So, R3 has a default that pointsto R1. And R2 has a default that points to R1, too.
Shouldnt R4 have two default routes, one from R1 (which it learns from R3) and one from R2?
Right now, it only has 1 that points to R3 and shows that it was originated by R1.
R4#sh ip ro 0.0.0.0
Routing entry for 0.0.0.0/0, supernet
Known via "ospf 1", distance 110, metric 1, candidate default path
Tag 1, type extern 2, forward metric 11
Last update from 126.96.36.199 on TenGigabitEthernet9/3, 1d02h ago
Routing Descriptor Blocks:
* 188.8.131.52, from 184.108.40.206, 1d02h ago, via TenGigabitEthernet9/3
Route metric is 1, traffic share count is 1
Route tag 1
A bit confused...
Make sure all routers in the topology have:
auto-cost reference-bandwidth 100000
You do understand you are bumping the cost reference to 100 Gig?
Based on the forwarding metric I see from R2, it is a bit higher on routes from R1 vs R3 on routes from R1.