Netgear FS526Tv2 - 24-Port Smart Switch with Gigabit Ports ユーザーガイド

Select the Enable radio button.

Click the Apply button.

The settings are saved. The Auto-Video VLAN field displays 3 for VLAN 3.

IGMP snooping lets the smart switch automatically build a forwarding database for multicast 
traffic. You can configure the global IGMP snooping options, IGMP snooping for individual 
ports and LAGs, and IGMP snooping for VLANs.

The global IGMP snooping options include enabling IGMP snooping, enabling validation of 
IGMP IP headers, and enabling blockage of unknown multicast addresses.

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Select Switching

 > Multicast > IGMP Snooping > IGMP Snooping Configuration.

The IGMP Snooping Configuration screen displays.