Vigor2120 Series User’s Guide
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IGMP is the abbreviation of Internet Group Management Protocol. It is a communication
protocol which is mainly used for managing the membership of Internet Protocol multicast
groups.
Available settings are explained as follows:
Item Description
Enable IGMP Proxy
Check this box to enable this function. The application of
multicast will be executed through WAN port. In addition,
such function is available in NAT mode.
Enable IGMP Snooping
Check this box to enable this function. Multicast traffic will
be forwarded to ports that have members of that group.
Disabling IGMP snooping will make multicast traffic
treated in the same manner as broadcast traffic.
Refresh
Click this link to renew the working multicast group status.
Group ID
This field displays the ID port for the multicast group. The
available range for IGMP starts from 224.0.0.0 to
239.255.255.254.
P1 to P4
It indicates the LAN port used for the multicast group.
After finishing all the settings here, please click OK to save the configuration.