With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vsiControlIfIpAddress
vsi Control If Ip Address
1.3.6.1.4.1.9.9.162.1.1.1.11
The IP address of the interface identified by the associated vsiControlInterface object.
Back to CISCO-VSIMASTER-MIB MIB page.
IPHost Network monitor allows you to monitor vsiControlIfIpAddress 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.