D-Link DES-3225G Series User Manual - page 167
Manual is about: 24-Port Fast Ethernet Switch
of
219
24-port NWay Ethernet Switch User’s Guide
Web-Based Network Management
153
♦
IP Multicast Filtering Age-out Timer When this
timer elapses, the switch itself will try to become
the IGMP host.
♦
IP Multicast Filtering (IGMP Snooping) This
setting allows the
switch to learn the IGMP
spanning tree and intelligently forward packets (as
opposed to broadcasting all packets). IGMP
snooping is automatically enabled/disabled with
this setting.
Configure 802.1Q IGMP
Click the icon on the far right to access the Add/Delete
IGMP Entry window: