OSPFv2 authentication configuration

Authentication must be configured on each interface or virtual link, as required. The same authentication method must be enabled on peer and neighbor routers to ensure a connection is established and the packets are transmitted successfully.

In this section:

  1. Configuring plain text authentication on an OSPFv2 interface
    To configure plain text authentication on an OSPFv2 interface, complete the following steps.
  2. Configuring Plain Text Authentication on an OSPFv2 Virtual Link
    To configure plain text authentication on an OSPFv2 virtual link, complete the following steps.
  3. Configuring MD5 authentication on an OSPFv2 interface
    To configure MD5 authentication on an OSPFv2 interface, complete the following steps.
  4. Configuring MD5 Authentication on an OSPFv2 Virtual Link
    To configure MD5 authentication on an OSPFv2 virtual link, complete the following steps.
  5. Configuring HMAC-SHA-1 or HMAC-SHA-256 authentication on an OSPFv2 interface
    To configure HMAC-SHA-1 or HMAC-SHA-256 authentication on an OSPFv2 interface, complete the following steps.
  6. Configuring HMAC-SHA-1 or HMAC-SHA-256 on an OSPFv2 Virtual Link
    To configure HMAC-SHA-1 or HMAC-SHA-256 authentication on an OSPFv2 virtual link, complete the following steps.
  7. Configuring keychain authentication on an OSPFv2 interface
    To configure keychain authentication on an OSPFv2 interface, complete the following steps.
  8. Configuring Keychain Authentication on an OSPFv2 Virtual Link
    To configure keychain authentication on an OSPFv2 virtual link, complete the following steps.
  9. Configuring authentication key activation wait time on an OSPFv2 interface
    The key activation wait time configures the time before an authentication key change is activated for an OSPFv2 interface. This allows you to coordinate a key change across devices to ensure there is no disruption to service.
  10. Configuring Authentication Key Activation Wait Time on an OSPFv2 Virtual Link
    The key activation wait time configures the time before an authentication key change is activated for an OSPFv2 virtual link. This allows you to coordinate a key change across devices to ensure there is no disruption to service.
  11. Displaying OSPFv2 Results
    To view the OSPFv2 interface details and authentication settings, use the show ip ospf interface command. This command is optional and allows you to verify the OSPFv2 details.
Parent topic: OSPFv2 Authentication