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Configuring PIM Sparse Mode (NSM Procedure)

 

To configure PIM sparse mode (PIM-SM) in a virtual router on a security device:

  1. Configure either a static route or a dynamic routing protocol, such as OSPF. (For information about configuring static routes, see Routing Table Entries Overview. For information about dynamic routing protocols, see Dynamic Routing Configuration Overview.)
  2. Create a security policy to pass unicast and multicast data traffic between zones. (For details on security policies, see the Network and Security Manager Administration Guide.
  3. Create and enable the PIM-SM routing instance in a virtual router.
  4. Select PIM-SM on interfaces that transmit multicast traffic.
  5. Configure a multicast rule to permit PIM-SM messages between zones. (For details on multicast rules, see the Network and Security Manager Administration Guide.

After you enable the PIM-SM routing instance in the virtual router and enable it on all applicable interfaces, you can optionally configure PIM-SM features such as the following:

  • Use access lists to restrict the rendezvous points (RPs) and sources from which a multicast group can receive traffic. You can also use access lists to restrict the multicast groups for which the virtual router forwards PIM join-prune messages. First, create the access lists, and then enter the access list IDs in the PIM-SM configuration screen of the virtual router. The security device then uses the access lists to filter the PIM-SM traffic.

  • Change the default parameters for each interface on which PIM-SM is enabled. When you set parameters at this level, the parameters affect the specific interface only.

  • Configure a static RP for a particular zone, or use dynamic RP mappings and configure a virtual router as a candidate rendezvous point (C-RP).

  • You can configure a virtual router to function as a proxy RP.

To configure PIM-SM:

  1. In the NSM navigation tree, select Device Manager > Devices. Double-click the device icon to open the device configuration.
  2. Configure the virtual router for PIM-SM:

    • In the device navigation tree, select Network > Virtual Router.

    • Double-click the virtual router in which you are configuring a PIM-SM instance. The General Properties screen appears.

    • In the virtual router navigation tree, select Dynamic Routing Protocol.

    • Select Configure PIM-SM. PIM-SM configuration options now appear in the virtual router navigation tree under Dynamic Routing Protocol.

    • In the virtual router navigation tree, select Dynamic Routing Protocol > PIM-SM > Parameters. The Parameters configuration screen appears.

    • Select Enable in the main display area,

    • Click OK to save your changes to the virtual router.

  3. Configure the interface for PIM-SM:

    • In the device navigation tree, select Network > Interface.

    • Double-click the interface that transmits multicast traffic. The General Properties screen appears.

    • In the interface navigation tree, select Protocol, and then select the PIM-SM tab in the main display area.

    • Select Configure PIM-SM on Interface.

    • Select Enable PIM-SM.

    • Click OK to save your changes to the interface. Repeat Step 3 to enable PIM-SM on additional interfaces.

  4. Click OK to save your changes to the device configuration.

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