ZyXEL Communications GS1200 Series User Manual page 62

Figure 46 IGMP Snooping
The following table describes the labels in this screen.
Table 15 IGMP Snooping
LABEL DESCRIPTION
IGMP Snooping
Enable IGMP Select this option to enable IGMP Snooping to forward group multicast traffic only to ports that
Snooping are members of that group.
Unknown Select this option to discard the frame when the Switch receives an unknown multicast frame.
Multicast Drop Otherwise, the Switch sends the frame to all ports.
IGMP Static The Switch treats an IGMP query port as being connected to an IGMP multicast router (or
Router Port server). The Switch forwards IGMP join or leave packets to an IGMP query port.
Select a port to be used as an IGMP query port.
Or, select Auto to allow any port to be used as an IGMP router port after receiving an IGMP
query.
Note: If link aggregation is enabled, the ports in a link aggregation group will not be
Apply Click Apply to save your changes to the Switch.
Chapter 13 IGMP Snooping
available in this field.
GS1200 Series User's Guide
62