Configuring Options of an IGMP Packet

The system supports IGMP Report message filtering through configurations of IGMP message options. For example, you can configure a device to deny or send IGMP messages with no Router-Alert options or filter IGMP Report messages based on source addresses.

Configuring a FW to Reject IGMP Packets Without the Router-Alert Option: If the multicast device connected to the user network segment needs to receive only the IGMP messages containing Router-Alert options, you can configure the multicast device to reject the IGMP messages without Router-Alert options. By default, the multicast device processes all the received IGMP messages.

Configuring a FW to Send IGMP Packets Without the Router-Alert Option: If other IGMP interfaces on the same network segment with the user host need to receive the IGMP messages without Router-Alert options, you can configure the multicast device connected to the user network segment to send IGMP messages containing no Router-Alert options. By default, the multicast device sends IGMP messages containing Router-Alert options.

Configuring Source Address-based IGMP Message Filtering: Source address-based IGMP message filtering is a security policy used for filtering IGMP message on the FW's interface connected to user hosts.