OSPF Neighbor Stuck in INITWhen a router receives an OSPF Hello from a neighbor, it sends the Hello packet that includes that neighbor's router ID. If it doesn't include the neighbor's router ID, the neighbor will be stuck in INIT. This is an indication of a problem. The first packet that a router receives will cause the router to go into INIT state.

The most common possible causes of this problem are as follows:

1) An access list on one side is blocking OSPF Hellos.

2) Multicast capabilities are broken on one side (6500 switch problem).

3) Authentication is enabled on only one side (virtual link example).

4) The frame-relay map/dialer map statement on one side is missing the broadcast keyword.

5) Hellos are getting lost on one side at Layer 2.