With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cDot11ActiveDevicesEntry
Cisco Dot11 Active Devices Entry
1.3.6.1.4.1.9.9.273.1.1.2.1
An entry represents a currently active device associated with this device. These active devices include: wireless clients, repeaters, and bridges.
Back to CISCO-DOT11-ASSOCIATION-MIB MIB page.
IPHost Network monitor allows you to monitor cDot11ActiveDevicesEntry 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.