| 摘要 |
A wireless LAN system in which a user who is already authorized to access a network need not repeat again the process of obtaining the authorization even when the network topology has changed, a wireless terminal, a wireless base station and a server used in the same. The wireless base station includes a configuration information storage for storing configuration version information indicating conditions to allow the wireless terminal to connect thereto, and a wireless communication configuration management section for transmitting a beacon containing the configuration version information. The wireless terminal includes a wireless communication interface for receiving the beacon from the wireless base station, and a configuration information management section for extracting the configuration version information from the beacon. The configuration information management section determines whether or not the communication configuration of the terminal satisfies the conditions indicated by the configuration version information. If not, the configuration information management section transmits a connection request to the wireless base station connected to a configuration server. After performing mutual authentication with the configuration server, the configuration information management section obtains configuration information previously stored in the server to reset the communication configuration of the terminal based on the configuration information. The configuration server includes a storage for storing the configuration information, an authenticator for performing mutual authentication with the wireless terminal, and a configuration information transmitter for transmitting the configuration information to the wireless terminal that has already been authenticated in response to a request from the terminal.
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