Troubleshooting EIGRP for IPv6 Route

The reasons why a route might be missing and the steps used to troubleshoot them with EIGRP for IPv6 is similar to our previous discussions based on EIGRP for IPv4. Therefore, we will identify some of the more common issues here and review the show commands that you can use to identify them.

Interface Not Participating in Routing Process

For a network to be advertised by the EIGRP for IPv6 process, the interface associated with that network must be participating in the routing process. As displayed earlier in Example 14-78, you can use the commands show ipv6 eigrp interfaces and show ipv6 protocols to verify the interfaces participating in the process.

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If the exact same network ...

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