Chapter 8 LAN Setup
AMG1001-T/AMG1011-T Series User’s Guide
60
improvement over version 1 (RFC 1112) but IGMP version 1 is still in wide use. IGMP version 3
supports source filtering, reporting or ignoring traffic from specific source address to a particular
host on the network. If you would like to read more detailed information about interoperability
between IGMP version 2 and version 1, please see sections 4 and 5 of RFC 2236. The class D IP
address is used to identify host groups and can be in the range 224.0.0.0 to 239.255.255.255. The
address 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 AMG1001-T/AMG1011-T supports IGMP version 1 (
IGMP-v1
), IGMP version 2 (
IGMP-v2
) and
IGMP version 3 (
IGMP-v3
). At start up, the AMG1001-T/AMG1011-T queries all directly connected
networks to gather group membership. After that, the AMG1001-T/AMG1011-T periodically updates
this information. IP multicasting can be enabled/disabled on the AMG1001-T/AMG1011-T LAN and/
or WAN interfaces in the web configurator (
LAN
;
WAN
). Select
None
to disable IP multicasting on
these interfaces.
Summary of Contents for AMG1001-T Series
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