With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cnatSessionOrigPrivateAddr
cnat Session Orig Private Address
1.3.6.1.4.1.9.10.77.1.2.5.1.6
The original IP address of the session endpoint that lies in the private network.
Back to CISCO-IETF-NAT-MIB MIB page.
IPHost Network monitor allows you to monitor cnatSessionOrigPrivateAddr on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.
