There are some command to help troubleshoot of OSPF and configuration.
1- show ip protocols (this command confirm on router , how many protocol is running include OSPF)
2 – show ip route ( dynamic routes are learned by OSPF)
3-
show ip ospf (display OSPF info for all OSPF processes)
4- show ip ospf database (internetwork along with the neighboring routers ID)
5 – show ip ospf neighbor (neighbors and adjacency state) –
6 – show ip ospf interface (all interface-related OSPF information including “Hello” and “Dead” timer intervals)
7 – ip ospf cost (interface mode command – change the default OSPF cost on an interface)
8 – debug ip ospf packet (shows hello packets being sent and received on the router)
9 – debug ip ospf hello
