With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cnatSessionOrigPublicPort
cnat Session Orig Public Port
1.3.6.1.4.1.9.10.77.1.2.5.1.12
The original transport port of the session endpoint that belongs to the public network. If this is an ICMP session then the value contains the ICMP request ID.
Back to CISCO-IETF-NAT-MIB MIB page.
IPHost Network monitor allows you to monitor cnatSessionOrigPublicPort on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.
