Accepting IGMP Messages from Remote Subnetworks

By default, IGMP interfaces accept IGMP messages only from the same subnetwork. Including the promiscuous-mode statement enables the routing device to accept IGMP messages from different subnetworks.

Note: When you enable IGMP on an unnumbered Ethernet interface that uses a/32 loopback address as a donor address, you must configure IGMP promiscuous mode to accept the IGMP packets received on this interface.

To enable promiscuous mode for an interface, include the promiscuous-mode statement:

You can include this statement at the following hierarchy levels:

• [edit protocols igmp interface interface-name]
• [edit logical-systems logical-system-name protocols igmp interface interface-name]

Example: IGMP Promiscuous Mode

Enable IGMP promiscuous mode on the interface you want to accept IGMP reports from indirectly connected subnets: