Configure OSPF Redistribution

The threat defense device can control the redistribution of routes between the OSPF routing processes. The rules for redistributing routes from one routing process into an OSPF routing process are displayed. You can redistribute routes discovered by EIGRP, RIP and BGP into the OSPF routing process. You can also redistribute static and connected routes into the OSPF routing process.

Procedure

Step 1

Choose Devices > Device Management, and edit the threat defense device.

Step 2

Click Routing.

Step 3

(For a virtual-router-aware device) From the virtual routers drop-down list, choose the virtual router for which you are configuring OSPF.

Step 4

Click OSPF.

Step 5

From OSPF Role drop-down, choose role .

Step 6

Click Redistribution > Add.

You can click Edit (edit icon), or use the right-click menu to cut, copy, past, insert, and delete areas.

Step 7

Configure the following redistribution options for each OSPF process:

  • OSPF Process—Choose the process ID. For a device using virtual routing, this drop-down list displays the unique process IDs generated for the selected virtual router.

  • Route Type—Choose one of the following types:

    • Static—Redistributes static routes to the OSPF routing process.

    • Connected—Redistributes connected routes (routes established automatically by virtue of having the IP address enabled on the interface) to the OSPF routing process. Connected routes are redistributed as external to the device. You can select whether to use subnets under the Optional list.

    • OSPF—Redistributes routes from another OSPF routing process, for example, internal, external 1 and 2, NSSA external 1 and 2, or whether to use subnets. You can select these options under the Optional list.

    • BGP—Redistribute routes from the BGP routing process. Add the AS number and whether to use subnets.

    • RIP—Redistributes routes from the RIP routing process. You can select whether to use subnets under the Optional list.

      Note

      As a user-defined virtual router does not support RIP, you cannot redistribute routes from RIP.

    • EIGRP—Redistribute routes from the EIGRP routing process. Add the AS number and whether to use subnets.

  • Metric Value—Metric value for the routes being distributed. The default value is 10. Valid values range from 0 to 16777214.

    When redistributing from one OSPF process to another OSPF process on the same device, the metric will be carried through from one process to the other if no metric value is specified. When redistributing other processes to an OSPF process, the default metric is 20 when no metric value is specified.

  • Metric Type—The metric type is the external link type that is associated with the default route that is advertised into the OSPF routing domain. The available options are 1 for a Type 1 external route or 2 for a Type 2 external route.

  • Tag Value—Tag specifies the 32-bit decimal value attached to each external route that is not used by OSPF itself, but which may be used to communicate information between ASBRs. If none is specified, then the remote autonomous system number is used for routes from BGP and EGP. For other protocols, zero is used. Valid values are from 0 to 4294967295.

  • RouteMap—Checks for filtering the importing of routes from the source routing protocol to the current routing protocol. If this parameter is not specified, all routes are redistributed. If this parameter is specified, but no route map tags are listed, no routes are imported. Or you can add a new route map by clicking Add (add icon). See Configure Route Map Entry to add a new route map.

Step 8

Click OK to save the redistribution configuration.

Step 9

Click Save on the Routing page to save your changes.

What to do next

Continue with Configure OSPF Inter-Area Filtering.