IPv6 Redistribution: “Include-connected” keyword
In IPv4, for redistribution of RIPv2 into OSPFv2, for example, we do¬†redistribute rip subnets¬†command from OSPF router configuration mode. The router essentially performs two steps-
- The router takes the output of¬†show ip route rip¬†command- all RIP routes are candidate for redistribution into OSPF
- The router takes the output of¬†show ip route connected¬†command- all connected routes enabled for RIP are candidate for redistribution into OSPF. This eliminates the need for¬†redistribute connected subnets¬†command.
In IPv6, redistribution is different. The router now performs only one step-
- The router takes the output of¬†show ipv6 route rip¬†command.
The router does not include the¬†connected routes¬†during redistribution usually performed using¬†redistribute rip <process_name>¬†command under OSPF router configuration mode.
To include RIPng enabled connected IPv6 interfaces to be redistributed into OSPFv3, we use
redistribute rip <process_name> include-connected¬†command from OSPF router configuration mode.
NOTE:¬†The¬†redistribute connected¬†command will redistribute all IPv6 interfaces on the router to OSPFv3, not just RIPng enabled interfaces.