Core Issue
For an Open Shortest Path First Protocol (OSPF) process to begin, the router must have an interface with a valid IP address in the state of up, line protocol up.
Resolution
Verify that you have an interface with a valid IP address in the state of up, line protocol up. This can be see in the show interface <interface> command.
If you are running more than one OSPF process, make sure you have at least one interface that meets this criteria for each OSPF process.
OSPF Errors, Warnings, and Log Messages
Receiving "can't allocat router-id" error message
