DVMRP Configuration Guidelines

To configure the Distance Vector Multicast Routing Protocol (DVMRP), include the dvmrp statement:

dvmrp {

    disable; 

    export [ policy-names ]; 

    import [ policy-names ]; 

    interface interface-name {

        disable;

        hold-time seconds;

        metric metric;

        mode (forwarding | unicast-routing);

    }

    rib-group group-name;

    traceoptions {

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

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

        flag flag <flag-modifier> <disable>; 

    }

}

You can include this statement at the following hierarchy levels:

• [edit protocols]
• [edit logical-routers logical-router-name protocols]

For an overview of logical routers and a detailed example of logical router configuration, see the logical routers chapter of the JUNOS Feature Guide.

By default, DVMRP is disabled.

This chapter describes the following tasks for configuring DVMRP:

• Minimum DVMRP Configuration
• Creating Routing Tables for DVMRP Routes
• Enabling DVMRP
• Modifying the DVMRP Hold-Time Period
• Modifying the Metric Value
• Disabling DVMRP on an Interface
• Configuring DVMRP Routing Policy
• Configuring DVMRP Routing Modes
• Tracing DVMRP Protocol Traffic
• Configuration Examples