I tried to link two client sites in the same area (for example area 5 on both sides) with no area 0 in the VRF at all. The client has a link to area 0 in another part of their network. Our task is simply to connect their regular area together across the WAN. Is this possible or must I have an area 0 somewhere in the VRF. I've had trouble with this before, It seems whenever I have a VRF connection to area 0 it works, and whenever there is no link to area 0 from the VRF I never get the routes through successfully.
Normal area 5, redistributing OSPF/BGP with internal external 1 and external 2 specified in the redistribution command, I manually specify are OSPF domain ID on both sides, just two VRF's each in OSPF area5 with no area 0