RIPng Configuration Overview

This section provides an overview of RIPng configuration.

Enabling RIPng on the device starts the RIPng process which then begins populating its routing table and sending and receiving routing updates. Use the ipv6 router rip command in configuration command mode to both enable RIPng on the device and enter RIPng configuration command mode.

Within RIPng configuration command mode:

• Optionally change the preference value for using RIPng as the routing protocol for this device by changing the RIPng administrative distance value using the distance command.
• Optionally assign standard ACLs to a distribution list to filter networks received and to suppress networks from being advertised in RIPng updates. Use the distribute-list command to assign an ACL to the list, specifying an IPv6 routing configured VLAN and whether the affected routing updates are incoming or outgoing.
• Optionally specify interfaces which will not transmit any RIPng update packets using the passive-interface command.
• Specify route types that can be redistributed in RIPng update messages using the redistribute command. The S- K- and 7100-Series supports redistribution of connected, OSPF (specifying the process ID), and static routes, optionally specifying the hop count metric for these routes or a route map. The S- and 7100-Series supports redistribution of BGP routes.
• Optionally, using the timers command, adjust routing timers associated with:
  • The frequency of routing updates by specifying the interval, in seconds, at which routing updates are sent
  • The expiration of routes by specifying the interval, in seconds, from the point of the last update after which a route times out and is marked as expired
  • The deletion of routes by specifying the interval in seconds from the point of a routes expiration after which a route is deleted from the routing table

Because IPv6 addressing prefix is ambiguous concerning network addressing compared to IPv4, you do not directly specify a network destination address. Instead, you enable RIPng on the interface using the ipv6 rip enable command and the interface address is automatically set as the network destination address.

An offset can be added or removed to the hop metric for all incoming or outgoing RIPng routes for a given interface. Adding an offset is used for the purpose of making an interface a backup. Use the ipv6 rip offset command in interface configuration mode to add or remove an offset for either incoming or outgoing RIPng routes.