US Patent 7562142 System and method for network connection

A network connection system and a network connection method for facilitating the start of network access service without using information unique to subscriber terminal equipment. Having received a request for telecommunications service from one of subscriber terminal equipment, intermediary equipment informs a telecommunications carrier server of the port number of a physical port to which the telecommunications service request has been input. In addition, the intermediary equipment informs the telecommunications carrier server of logical link information and physical link information of the subscriber terminal equipment which has sent the telecommunications service request contained in the request. The telecommunications carrier server sends the subscriber terminal equipment subscriber identification information corresponding to the port number. The subscriber terminal equipment sends an ISP server the subscriber identification information. When having received the subscriber identification information, the ISP server sets subscriber setting information for the subscriber terminal equipment.