With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swMcastFilterVLANMaxGroup
Switch Mcast Filter VLAN Max Group
1.3.6.1.4.1.171.12.53.8.1.2
This object indicates the maximum number of groups that can be registered within this VLAN. The value range is (0..N), N is project dependent, a value of 0 means infinite.
Back to MCAST-FILTER-MIB MIB page.
IPHost Network monitor allows you to monitor swMcastFilterVLANMaxGroup 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 IP cameras right now.