ZyXEL Communications AMG1302-T series User Manual page 134

Chapter 8 Home Networking
224.0.0.1 is used for query messages and is assigned to the permanent group of all IP hosts
(including gateways). All hosts must join the 224.0.0.1 group in order to participate in IGMP. The
address 224.0.0.2 is assigned to the multicast routers group.
At start up, the AMG1302/AMG1202-TSeries queries all directly connected networks to gather
group membership. After that, the AMG1302/AMG1202-TSeries periodically updates this
information. IP multicasting can be enabled/disabled on the AMG1302/AMG1202-TSeries LAN and/
or WAN interfaces in the web configurator (LAN; WAN). Select None to disable IP multicasting on
these interfaces.
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AMG1302/AMG1202-TSeries User's Guide