NetComm NB6W - Manual (Page 77)

YML854 Rev1 NB6, NB6W, NB6Plus4, NB6Plus4W, NB6Plus4Wn NB6, NB6W, NB6Plus4, NB6Plus4W, NB6Plus4Wn User Guide
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Internet – IGmP Proxy
The Internet Group Management Protocol (IGMP) is an Internet protocol that provides a way for an Internet
computer to report its multicast group membership to adjacent routers.
The hosts interact with the system through the exchange of IGMP messages. When you want to configure
IGMP proxy, the system will interact with other routers through the exchange of IGMP messages. However,
when acting as the proxy, the system performs the host portion of the IGMP task as follows:
• When being queried, the system will send membership reports to the group.
• When one of the hosts joins a multicast address group which none of other hosts belongs to, the system
will send unsolicited membership reports to that group.
• When the last host in a particular multicast group leaves the group, the system will send a leave group
membership report to the router’s group.
Internet Connection:
This field displays the internet connection(s) that set in this router.
IGmP Proxy Enabled:
Check this box to enable this function or uncheck this box to disable this function.
After finish the settings, click Apply.
To invoke the IGMP Snooping function, the IGMP Proxy must be enabled first.