run the following command and note the IP, VLAN Derivation, VLAN default, VLAN assigned, and VLAN Current fields.
show user mac <mac address>
Name: , IP: x.x.x.x, MAC: 00:21:5c:02:16:cd, Role:authenticated, ACL:60/0, Age: 00:00:25
Authentication: No, status: not started, method: , protocol: , server:
Role Derivation: AAA profile default role
VLAN Derivation: unknown
Idle timeouts: 0, ICMP requests sent: 0, replies received: 0, Valid ARP: 0
Mobility state: Wireless, HA: Yes, Proxy ARP: No, Roaming: No Tunnel ID: 0 L3 Mob: 0
Flags: internal=0, trusted_ap=0, l3auth=0, mba=0
Flags: innerip=0, outerip=0, guest=0, download=1, nodatapath=0, wispr=0
Auth fails: 0, phy_type: g-HT, reauth: 0, BW Contract: up:0 down:0, user-how: 14
Vlan default: 13, Assigned: 0, Current: 13 vlan-how: 0
Mobility Messages: L2=0, Move=0, Inter=0, Intra=0, ProxyArp=0, Flags=0x0
Tunnel=0, SlotPort=0x1041, Port=0x108b (tunnel 11)
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