23.23.1/24, Area 0
Process ID 100, Router ID 192.168.1.65, Network Type POINT_TO_POINT, Cost: 1562
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:04
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 192.168.1.81
Suppress hello for 0 neighbor(s)
Simple password authentication enabled
Serial0/0/0 is up, line protocol is up
Internet Address 10.140.1.2/24, Area 0
Process ID 100, Router ID 192.168.1.65, Network Type POINT_TO_POINT, Cost: 1562
Transmit Delay is 1 sec, State POINT_TO_POINT,
Troubleshooting OSPF 163
OSPF routers exchange hello packets to create neighbor adjacencies. Four items in an OSPF hello
packet must match before an OSPF adjacency can occur:
?– Area ID
?– Hello and dead intervals
?– Authentication password
?– Stub area ?¬‚ag
To determine whether any of these hello packet options do not match, use the debug ip ospf adj
command. The output in Example 4-16 illustrates a successful adjacency on the serial 0/0/1
interface.
Example 4-16 Verifying OSPF Adjacencies
*Feb 17 18:41:51.242: OSPF: Interface Serial0/0/1 going Up
*Feb 17 18:41:51.
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