With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
natAddrPortBindLocalAddr
nat Addr Port Bind Local Addr
1.3.6.1.2.1.123.1.8.1.2
This object represents the private-realm specific network layer address which, in conjunction with natAddrPortBindLocalPort, maps to the public-realm network layer address and transport id represented by natAddrPortBindGlobalAddr and natAddrPortBindGlobalPort respectively. The type of this address is determined by the value of the natAddrPortBindLocalAddrType object.
Back to NAT-MIB MIB page.
IPHost Network monitor allows you to monitor natAddrPortBindLocalAddr on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.