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4 configuring ip – ZyXEL Communications G-2000 Plus User Manual

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ZyAIR G-2000 Plus User’s Guide

Chapter 5 LAN Screens

72

224.0.0.0 is not assigned to any group and is used by IP multicast computers. The address
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.

The ZyAIR supports both IGMP version 1 (IGMP-v1) and IGMP version 2 (IGMP-v2). At
start up, the ZyAIR queries all directly connected networks to gather group membership. After
that, the ZyAIR periodically updates this information. IP multicasting can be enabled/disabled
on the ZyAIR LAN and/or WAN interfaces in the web configurator (LAN; WAN). Select
None to disable IP multicasting on these interfaces.

5.4 Configuring IP

Click LAN to open the IP screen.