Configuring DVMRP Routing Policy

All routing protocols use the routing table to store the routes that they learn and to determine which routes they advertise in their protocol packets. Routing policy allows you to control which routes the routing protocols store in and retrieve from the routing table.

When configuring DVMRP routing policy, you can apply routing policies. To do this, include the import and export statements at the [edit protocols dvmrp] or [edit logical-systems logical-system-name protocols dvmrp] hierarchy level.

To apply policies to routes imported into the routing table from DVMRP, include the import statement, listing the names of one or more policy filters to be evaluated. If you specify more than one policy, they are evaluated in the order specified, from first to last, and the first matching policy is applied to the route. If no match is found, DVMRP shares with the routing table only those routes that were learned from DVMRP routers.

You can include this statement at the following hierarchy levels:

• [edit protocols dvmrp]
• [edit logical-systems logical-system-name protocols dvmrp]

To apply policies to routes exported from the routing table into DVMRP, include the export statement, listing the names of one or more policies to be evaluated. If you specify more than one policy, they are evaluated in the order specified, from first to last, and the first matching policy is applied to the route. If no match is found, the routing table exports into DVMRP only the routes that it learned from DVMRP and direct routes.

You can include this statement at the following hierarchy levels:

• [edit protocols dvmrp]
• [edit logical-systems logical-system-name protocols dvmrp]