With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL2PortSecurityControlTable
Switch L2 Port Security Control Table
1.3.6.1.4.1.171.11.70.5.2.15.1
A port security feature which controls the address leaning capability and traffic forwarding decisions. Each port can be enabled or disabled for this function. When it is enabled and a number is given said N, which allows N addresses to be learned on this port, the first N learned addresses are locked at this port as static entries. When the learned addresses number reaches N, any incoming packet without learned source addresses are discarded (e.g. dropped) and no more new addresses can be learned on this port.
Back to DES3552-L2MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL2PortSecurityControlTable 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 access points right now.