With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cnatSessionOrigPrivatePort
cnat Session Orig Private Port
1.3.6.1.4.1.9.10.77.1.2.5.1.8
The original transport port of the session endpoint that belongs to the private network. If this is an ICMP session then the value is the ICMP request ID.
Back to CISCO-IETF-NAT-MIB MIB page.
IPHost Network monitor allows you to monitor cnatSessionOrigPrivatePort 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.
