RIP Configuration Guidelines

To configure the Routing Information Protocol (RIP), you include the following statements:

protocols {

    rip {

        authentication-key password ;

        authentication-type type ;

        (check-zero | no-check-zero);

        graceful-restart {

            disable;

            restart-time seconds;

        }

        holddown seconds;

        import [  policy-names  ];

        message-size number ;

        metric-in metric ;

        receive receive-options ;

        rib-group group-name;

        send send-options ;

        traceoptions {

            file name <replace> <size size> <files number > <no-stamp> 

                <(world-readable | no-world-readable)>;

            flag flag <flag-modifier > <disable>; 

        }

        group group-name {

            export [  policy-names   ]; 

            metric-out metric

            preference number ;

            neighbor neighbor-name { 

                authentication-key password ;

                authentication-type type ;

                (check-zero | no-check-zero);

                import [  policy-names  ]; 

                message-size number ;

                metric-in metric ;

                metric-out metric ;

                receive receive-options ;

                send send-options ;

            }

        }

    }

} 

For a list of hierarchy levels at which you can configure these statements, see the statement summary sections for these statements.

By default, RIP is disabled.

To have a router exchange routes with other routers, you must configure RIP groups and neighbors. RIP routes received from routers not configured as RIP neighbors are ignored. Likewise, RIP routes are advertised only to routers configured as RIP neighbors, with an appropriate RIP export policy applied.

This chapter discusses the following topics:

• Minimum RIP Configuration
• Define RIP Global Properties
• Define RIP Neighbor Properties
• Configure Authentication
• Modify the Incoming Metric
• Configure the Hold-Down Timer
• Configure the Number of Route Entries in an Update Message
• Accept Packets Whose Reserved Fields Are Nonzero
• Configure Update Messages
• Configure Routing Table Groups
• Apply Import Policy
• Configure Group-Specific Properties
• Configure Graceful Restart
• Trace RIP Protocol Traffic

For a configuration example, see Example: Configure RIP.