With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL2PTPortType
Switch L2 PT Port Type
1.3.6.1.4.1.171.12.93.1.2.1.2
This object indicates the Layer 2 protocol tunneling port type. The 'none' value indicates that the port is normal. Layer 2 protocol tunneling is disabled on this port. The 'uni' value indicates that the port is connected to the customer site. A Layer 2 PDU received on a UNI port can be tunneled to a remote customer site across the provider network. The 'nni' value indicates that the port is connected to the provider network. A Tunneled Layer 2 PDU received on an NNI port will be restored to its original format.
Back to L2PROTOCOL-TUNNEL-MIB MIB page.
IPHost Network monitor allows you to monitor swL2PTPortType 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.