With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cnatSessionOrigPublicAddr
cnat Session Orig Public Address
1.3.6.1.4.1.9.10.77.1.2.5.1.10
The original IP address of the session endpoint that lies in the public network.
Back to CISCO-IETF-NAT-MIB MIB page.
IPHost Network monitor allows you to monitor cnatSessionOrigPublicAddr on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.
