With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL2IGMPForwardingEntry
Switch L2 IGMP Forwarding Entry
1.3.6.1.4.1.171.11.70.5.2.11.8.1
Information about current IGMP forwarding information which captured by this device, provided that swL2DevCtrlIGMPSnooping and swL2IGMPCtrlState of associated VLAN entry are all enabled.
Back to DGS3650-L2MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL2IGMPForwardingEntry on D-Link device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring D-Link WiFi routers right now.