Configure a Virtual Link

This example configures area 0.0.0.6 as a virtual link, with 20.0.0.1 as the virtual neighbor, and an interface index value of 100.

1. Enter Global Configuration mode in SEFOS1.

   SEFOS# configure terminal
   

2. Enable OSPF globally in SEFOS1.

   SEFOS(config)# ipv6 router ospf
   

3. Configure the OSPF router ID.

   SEFOS(config-router)# router-id 10.0.0.1
   

4. Configure the virtual link.

   SEFOS(config-router)# area 0.0.0.6 virtual-link 20.0.0.1 100
   

5. View the configuration.

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   Note - The neighbor state will be down until other end of the virtual link becomes active.

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   SEFOS# show ipv6 ospf virtual-links
    
   Interface State: DOWN, Neighbor State: DOWN
   Transit Area: 0.0.0.6,  Virtual Neighbor: 20.0.0.1
   Intervals Configured for the Virtual Interface:
   Hello: 10, Dead: 60, Transit: 1, Retransmit : 5