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OSPF Unnumbered Interfaces: Some OSPF Interfaces Stuck in INIT State



On a switch configured with OSPF unnumbered interfaces, some OSPF neighbors are established, some are in the INIT state, and some do not show up at all in the cl-ospf neighbor output.

# cl-ospf neighbor 

Neighbor ID     Pri State           Dead Time Address         Interface           1 Full/DROther      35.382s       swp46:         1 Init/DROther      34.232s       swp47:         1 Full/DROther      36.635s       swp48:


Cumulus Linux, all versions


The loopback interface is missing an IP address.


Configure the IP address on the loopback interface.


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