With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swSubnetVLANID
Switch Subnet VLANID
1.3.6.1.4.1.171.12.75.3.2.1.3
This object indicates the VLAN ID.
Back to SUBNETVLAN-MIB MIB page.
IPHost Network monitor allows you to monitor swSubnetVLANID 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.