With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swAuthLastEapolFrameVersion
Switch Authentication Last Eapol Frame Version
1.3.6.1.4.1.171.12.3.6.2.1.11
The protocol version number carried in the most recently received EAPOL frame.
Back to DLINK-AUTH-MIB MIB page.
IPHost Network monitor allows you to monitor swAuthLastEapolFrameVersion 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 switches right now.