With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmmcaDeviceInetAddress
Cisco Multi-Modal Contact Applications Device Inet Address
1.3.6.1.4.1.9.9.664.1.1.13.1.7
This object identifies ip address of the remote device. The type of address for this is identified by InetAddressType.
Back to CISCO-MMODAL-CONTACT-APPS-MIB MIB page.
IPHost Network monitor allows you to monitor cmmcaDeviceInetAddress 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.