NEC IP8800/S3600 manual 10 IPv6 Unicast Routing Communication Failure, Failure Analysis of RIPng

3. Troubleshooting Functional Failures in Operation

3.10 IPv6 Unicast Routing Communication Failure

3.10.1No RIPng Routing Information Exists

Isolate the problem according to the failure analysis method listed below if RIPng route information does not exist in the displayed route information acquired by this system.

Table 3-35: Failure Analysis of RIPng

No.	Troubleshooting Steps and Command	Action
1	RIPng neighboring information is displayed.	Go to No. 2 if the interface of a neighboring router is not displayed.
	show ipv6 rip neighbor
		Go to No. 3 if the interface of a neighboring router is displayed.
2	Check to see if the RIPng setting is correct in	Go to No. 3 if the configuration is correct.
	configuration.
		Correct the configuration if it is not correct.
3	Confirm that the routing are not filtered by	Check to see if the neighboring router advertises the RIPng route.
	referring to the configuration.
		Correct the configuration if it is not correct.

3.10.2No OSPFv3 Routing Information Exists

Isolate the problem according to the failure analysis method listed below if OSPFv3 route information does not exist in the displayed route information acquired by this system.

Table 3-36: Failure Analysis of OSPFv3

No.	Troubleshooting Steps and Command	Action
1	Check the interface status of OSPFv3.	Go to No. 3 if the interface status is DR.
	show ipv6 ospf interface <Interface
		Go to No. 2 if the interface status is BackupDR or DR Other.
	Name>
		Execute the command again after a certain period if the interface status is
		"Waiting." Go to No. 1.
2	Check the status of a neighboring router of DR	Go to No. 4 if the status of the neighboring router of DR is other than Full.
	from Neighbor List.
		Go to No. 5 if the status of the neighboring router of DR is Full.
3	Check the status of all neighboring routers from	Go to No. 4 if the status of some neighboring routers is other than Full.
	Neighbor List.
		Go to No. 5 if the status of all neighboring routers is Full.
4	Check to see if the OSPFv3 setting is correct in	Go to No. 5 if the configuration is correct.
	configuration.
		Correct the configuration if it is not correct.
5	Check the OSPFv3 routes that have been	Go to No. 6 if the route is set to "InActive."
	learned.
		If no route exists, check to see if the neighboring router advertises the
	show ipv6 route all-routes
		OSPFv3 route.
6	Confirm that the routing are not filtered by	Check to see if the neighboring router advertises the OSPFv3 route.
	referring to the configuration.
		Correct the configuration if it is not correct.

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