Toshiba Magnia Z500 - Manual (Page 76)

4.2.2 Authentication and Distribution of WEP Key
This section explains authentication (reauthentication) and the distribution of the WEP key.
4.2.2.1 Authentication
Authentication starts when a radio LAN station connects to the access point.
When the station connects, the access point issues a request to start authentication for that
station. Although the station that has received the request starts the authentication procedure,
the access point transfers all messages related to the authentication to the RADIUS server. That
is, the authentication itself is performed between the station and RADIUS server.
While the authentication procedure is performed, the station cannot join the network.
When the station passes the authentication, the RADIUS server reports to the access point.
The access point has the station joint the network.
The following shows the authentication procedure (successful example).
Authentication procedure (successful example)
6
3
RADIUS AP
1 STA
5
4
2
STA
1. The station connects to the access point.
2. A request to start authentication is sent from the access point to the station.
3. The authentication procedure is performed between the station and RADIUS server.
4. The RADIUS server reports to the access point that the station has passed the
authentication.
5. The access point report to the station that the station has passed the authentication.
The access point permits the station to communicate.
At this point, the WEP key can be distributed. (Whether the WEP key can be
distributed depends on the authentication type.)
6. The station can joint the network.