Cisco Systems 78-11741-02 manual RIP Configuration Examples, Route Summarization Examples, IPC-209

Configuring Routing Information Protocol

RIP Configuration Task List

To display the contents of the RIP private database, use the following command in EXEC mode:

Command	Purpose
Router# show ip rip database [prefix mask]	Displays the contents of the RIP private database.

RIP Configuration Examples

The following section provides RIP configuration examples:

•Route Summarization Examples, page 209

•Split Horizon Examples, page 210

•Address Family Timers Example, page 212

Route Summarization Examples

A correct and an incorrect configuration example of route summarization are provided.

Example 1: Correct Configuration

The following example shows how the ip summary-address rip router configuration command works with automatic summary addressing in RIP, starting in global configuration mode. In the example, the major network is 10.0.0.0. The summary address 10.2.0.0 overrides the automatic summary address of 10.0.0.0, so that 10.2.0.0 is advertised out Ethernet interface 1 and 10.0.0.0 is not advertised.

Note If split horizon is enabled, neither automatic summary nor interface summary addresses (those configured with the ip summary-address rip router configuration command) are advertised.

Router(config)# router rip

Router(config-router)# network 10.0.0.0

Router(config-router)# exit

Router(config)# interface ethernet1

Router(config-if)# ip address 10.1.1.1 255.255.255.0

Router(config-if)# ip summary-address rip 10.2.0.0 255.255.0.0

Router(config-if)# no ip split-horizon

Router(config-if)# exit

Cisco IOS IP Configuration Guide

IPC-209