Hey all,
A little doubt about default routes on OSPF ABR.
On a single topology, R1 redistribute a default route and have all its interface on area 0.
R2 and R3 area ABR and have one interface on area 0 and other interface on area 30.
R4 are totally inside on area 30.
With every links working fine, all router have the default route.
If the conection between R1 x R3 comes down, Can R3 learn the default route from R4?