With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cDot11ClientVlanId
Cisco Dot11 Client Vlan Id
1.3.6.1.4.1.9.9.273.1.2.1.1.17
This is the VLAN which this wireless client is assigned to when it is successfully associated to the wireless station. The value is 0 if this wireless client is not assigned to any VLAN or this wireless station is not configured with any VLAN.
Back to CISCO-DOT11-ASSOCIATION-MIB MIB page.
IPHost Network monitor allows you to monitor cDot11ClientVlanId on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.