With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL3Md5Entry
Switch L3 Md5 Entry
1.3.6.1.4.1.171.11.70.5.3.4.1
A list of information displays the current MD5 key table.
Back to DES3528-SWL3MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL3Md5Entry 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.