With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
natStatsProtocolGroup
nat Stats Protocol Group
1.3.6.1.2.1.123.2.1.4
A collection of protocol specific NAT statistics, to aid troubleshooting/monitoring of NAT operation.
Back to NAT-MIB MIB page.
IPHost Network monitor allows you to monitor natStatsProtocolGroup 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.