Core Issue
The Routing Information Protocol (RIP) is a distance-vector, interior gateway protocol that uses hop count as its metric. RIP version 1 (v1) is a classfull routing protocol. RIP version 2 (v2) is classless.
Resolution
To enable RIP routing on a router, issue the router rip command in global configuration mode. To specify a list of networks for the RIP routing process, issue the network command in router configuration mode. By default, RIP enabled routers run RIP v1.
To specify a Routing Information Protocol (RIP) version used globally by the router, issue the version command in router configuration mode. A RIP router might need to be able to exchange updates with both v1 and v2 routers. To specify a Routing RIP version to send on an interface basis, issue the ip rip send version command in interface configuration mode.
To specify a Routing Information Protocol (RIP) version to receive on an interface basis, issue the ip rip receive version command in interface configuration mode.
For more information, refer to Configuring RIP.
