Configuring RFC 6506 Authentication on an OSPFv3 Virtual Link

This may be required for interoperability purposes. By default, OSPFv3 authentication is implemented in accordance with RFC 7166, which supersedes RFC 6506. However, some vendors still support RFC 6506. To configure authentication in accordance with RFC 6506 on an OSPFv3 virtual link, complete the following steps.
  1. Enter the configure terminal command to access global configuration mode. 
    device# configure terminal
  2. Enter the ip router-id command to specify the required router. 
    device(config)# ip router-id 10.1.1.1
  3. Enter the ipv6 router ospf command to enter OSPFv3 configuration mode and enable OSPFv3 on the device. 
    device(config)# ipv6 router ospf
  4. Enter the area area-ID virtual-link virtual-link-address authentication rfc6506 command. 
    device(config-ospf6-router)# area 1 virtual-link 20.1.1.1 authentication rfc6506
  5. Enter the area area-ID virtual-link virtual-link-address authentication command, with the required authentication option and parameters. The example enables HMAC-SHA-1 authentication with key ID 10 and key string "mypasswordkey". 
    device(config-ospf6-router)# area 1 virtual-link 20.1.1.1 authentication hmac-sha-1 key-id 10 key mypasswordkey

The following example enables HMAC-SHA-1 authentication using key ID 10 and key string "mypasswordkey" on the specified virtual link. 

device# configure terminal
device(config)# ip router-id 10.1.1.1
device(config)# ipv6 router ospf
device(config-ospf6-router)# area 1 virtual-link 20.1.1.1 authentication rfc6506
device(config-ospf6-router)# area 1 virtual-link 20.1.1.1 authentication hmac-sha-1 key-id 10 key mypasswordkey
Parent topic: OSPFv3 Authentication Trailer Configuration