With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cDot11ClientConfigInfoEntry
Cisco Dot11 Client Config Info Entry
1.3.6.1.4.1.9.9.273.1.2.1.1
Each entry is the device specification of a client of this device on the IEEE 802.11 radio interfaces. Clients are grouped according to the SSIDs of the interfaces they use for associations and the MAC address of their parent devices if the clients are repeat APs.
Back to CISCO-DOT11-ASSOCIATION-MIB MIB page.
IPHost Network monitor allows you to monitor cDot11ClientConfigInfoEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.