Configure IGMP Static Groups

Sometimes a group member cannot report its membership in the group or there may be no members of a group on the network segment, but you still want multicast traffic for that group to be sent to that network segment. You can have multicast traffic for that group sent to the segment by configuring a statically joined IGMP group. With this method, the threat defense device does not accept the packets itself, but only forwards them. Therefore, this method allows fast switching. The outgoing interface appears in the IGMP cache, but this interface is not a member of the multicast group.

Procedure

Step 1

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

Step 2

Choose Routing > Multicast Routing > IGMP.

Step 3

On Static Group, click Add or Edit.

Use the Add IGMP Static Group parameters dialog box to statically assign a multicast group to an interface. Use the Edit IGMP Static Group parameters dialog box to change existing static group assignments.

Note	The IGMP Static Group enables PIM to send Join requests towards the sources or towards the Rendezvous Point (RP), provided, the firewall with this command is the PIM Designated Router (DR) on that interface where the command is applied.

Step 4

Configure the following options:

From the Interface drop-down list, choose the interface to which you want to statically assign a multicast group. If you are editing an existing entry, you cannot change the value.
From the Multicast Groups drop-down list, choose the multicast group to which you want to assign the interface, or click Add () to create a new multicast group. See Creating Network Objects for the procedure.

Step 5

Click OK to save the static group configuration.