Abstract: A communication system is constructed in such a manner that a user is allowed to designate a controller 1 and a wireless device 3 simultaneously to start authentication for connection with a wireless base station 2 to specify the device to be connected, and to establish connection authentication without a password for the first time. Thereafter, the controller 1 distributes a password to the wireless base station 2 and to the wireless device 3 to cancel the connection authentication. Next, connection authentication with the distributed password is established. Thus, the communication system makes it possible to substantially automatically establish connection authentication, thereby eliminating a cumbersome operation by the user in implementing the connection authentication process.

Abstract: The invention provides a router device, a communication device, a routing method, a routing program, and a computer-readable recording medium recorded with the routing program that enable to improve communication efficiency. The communication data receiving section 10 receives communication data from the high-speed transmission medium 2. The communication data storage 11 stores the received communication data therein. The communication data sending section 12 sends the communication data to the low-speed transmission medium 3. The communication data temporal storage 13 temporarily stores the communication data sent from the communication data sending section 12 therein. The destination comparing section 14 compares the destination of the communication data stored in the communication data storage 11 with the destination of the communication data stored in the communication data temporal storage 13.

Abstract: A communication system is constructed in such a manner that a user is allowed to designate a controller 1 and a wireless device 3 simultaneously to start authentication for connection with a wireless base station 2 to specify the device to be connected, and to establish connection authentication without a password for the first time. Thereafter, the controller 1 distributes a password to the wireless base station 2 and to the wireless device 3 to cancel the connection authentication. Next, connection authentication with the distributed password is established. Thus, the communication system makes it possible to substantially automatically establish connection authentication, thereby eliminating a cumbersome operation by the user in implementing the connection authentication process.