Patent ID: 7640004
Filing Date: 2009-12-29
Classification: H04L,H04W

Abstract:
1. A wireless LAN system comprising at least one wireless terminal in which communication configuration is set based on configuration information, a first wireless base station for connecting the wireless terminal that has connected thereto to a LAN, and a second wireless base station for connecting the wireless terminal that has connected thereto to a configuration server in a configuration network, wherein: the first wireless base station includes: a storage for storing configuration version information representing a version of configuration information to indicate that the wireless terminal whose communication configuration has been set based on the configuration information in the version is allowed to connect to the base station; and a configuration version information transmitter for transmitting the configuration version information to the wireless terminal; the wireless terminal includes: a configuration version information receiver for receiving the configuration version information from the first wireless base station; a version comparator for determining whether or not the version of the configuration information based on which the communication configuration of the terminal has been set matches the version indicated by the configuration version information; a connection request transmitter for transmitting a connection request to the second wireless base station when the version of the configuration information based on which the communication configuration of the terminal has been set does not match the version indicated by the configuration version information; an authenticator for performing mutual authentication with the configuration server; a configuration information receiver for obtaining configuration information previously stored in the configuration server that has already been authenticated; and a communication configuration changer for resetting the communication configuration of the terminal based on the configuration information obtained from the configuration server; and 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, wherein the LAN and the configuration networks are separate.