Wanted to check to see if anyone has seen this issue. We have all our routers connected with OSPF for an IGP. OSPF is setup with all PTP and LoopBack addresses and also originates the default route. We assign public IP addresses to the LoopBack and assign them using BGP only.
Internet - R1 - R2 - R3
R2 is setup for OSPF only.
R1 and R2 can ping anything on the Internet. R3 can only ping anything on the internet only if we also add the public IP addresses to OSPF as well as BGP.