Re-enabling OSPFv2 compatibility with RFC 1583

  1. Enter the configure terminal command to access global configuration mode.
    device# configure terminal
  2. Enter the ip router ospf command to enter OSPF router configuration mode and enable OSPFv2 on the device.
    device(config)# router ospf
  3. Enter the rfc1583-compatibility command to re-enable OSPFv2 compatibility with RFC 1583.
    device(config-router-ospf-vrf-default-vrf)# rfc1583-compatibility 

Example

The following example re-enables OSPFv2 compatibility with RFC 1583.

device# configure terminal
device(config)# router ospf 
device(config-router-ospf-vrf-default-vrf)# rfc1583-compatibility