With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cnatProtocolStatsInTranslate
cnat Protocol Stats In Translate
1.3.6.1.4.1.9.10.77.1.3.1.1.2
The number of inbound packets, pertaining to the protocol identified by cnatProtocolStatsName, that underwent NAT.
Back to CISCO-IETF-NAT-MIB MIB page.
IPHost Network monitor allows you to monitor cnatProtocolStatsInTranslate on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.
