With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
natAddrMapEntry
nat Addr Map Entry
1.3.6.1.2.1.123.1.4.1
This entry represents an address map to be used for NAT and contributes to the dynamic and/or static address mapping tables of the NAT device.
Back to NAT-MIB MIB page.
IPHost Network monitor allows you to monitor natAddrMapEntry 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.