This attribute shall indicate the current state of the connection
between a wireless station and the AP. The attribute is
enumerated as follows:
1 - Detected - station has been detected, but not is communicating with AP
2 - Authenticated - station is authenticated but not currently
associated.
3 - Associated - station is authenticated and associated
4 - Data-forwarding - station is on the network
It is assumed that if an station is deauthenticated, or disassociated
then it no longer has an entry the AP's Address Table.