With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cnnEouAuthIpAddrType
cnn Eou Authenticaton Ip Addr Type
1.3.6.1.4.1.9.9.484.1.2.1.1.1
The type of Internet address by which the statically authorized IP device is reachable.
Back to CISCO-NAC-NAD-MIB MIB page.
IPHost Network monitor allows you to monitor cnnEouAuthIpAddrType on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.