With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL2IGMPIpGroupReportCount
Switch L2 IGMP Ip Group Report Count
1.3.6.1.4.1.171.11.70.5.2.11.5.1.5
This object indicates how many report packets were receive by our device, that correspond with this entry when the IGMP function is enabled on per-VLAN basis.
Back to DES3528-L2MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL2IGMPIpGroupReportCount 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.