D-Link DSL-2790U - IGMP Configuration; IGMP Setup

71D-Link DSL-2790U Wireless N300 ADSL2+ Modem Router User Manual
Section 4 - Conguration
IGMP
IGMP SETUP
Check the box to enable Internet Group Management Protocol (IGMP) snooping for extra
network trac security.
Click Apply when you are done.