With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swAuthInvalidEapolFramesRx
Switch Authentication Invalid Eapol Frames Rx
1.3.6.1.4.1.171.12.3.6.2.1.9
The number of EAPOL frames that have been received by this Authenticator in which the frame type is not recognized.
Back to DLINK-AUTH-MIB MIB page.
IPHost Network monitor allows you to monitor swAuthInvalidEapolFramesRx 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.