With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swMldSnpRouterStaticPortList
Switch Mld Snp Router Static Port List
1.3.6.1.4.1.171.12.34.3.4.1.2
Displays router ports that have been statically configured.
Back to MLD-SNOOPING-MIB MIB page.
IPHost Network monitor allows you to monitor swMldSnpRouterStaticPortList 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 switches right now.