The quickest way to verify OSPF interface settings is to use the show ipv6 ospf interface command. This command provides a detailed list for every OSPF-enabled interface.
To retrieve and view a summary of OSPFv3-enabled interfaces on R1, use the show ipv6 ospf interface brief command, as shown in Figure 1.
Use the Syntax Checker in Figure 2 to view a summary of OSPF-enabled interfaces on R2 using the show ipv6 ospf interface brief command. Notice that specifying the interface name as done in the show ipv6 ospf interface serial 0/0/1 command provides detailed OSPF information.
Continue using the Syntax Checker in Figure 2 to get a summary of OSPF-enabled interfaces on R3 using the show ipv6 ospf interface brief command. Retrieve and view additional information for the Serial 0/0/0 interface using the show ipv6 ospf interface serial 0/0/0 command.