With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cnnEouAuthMacTable
cnn Eou Authenticaton Mac Table
1.3.6.1.4.1.9.9.484.1.2.2
A list of static authorized devices identified by MAC address.
Back to CISCO-NAC-NAD-MIB MIB page.
IPHost Network monitor allows you to monitor cnnEouAuthMacTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.