Patent ID: 7720057
Filing Date: 2010-05-18
Classification: H04L,H04W

Abstract:
1. A data relay apparatus that is connected to a wired network and connects a wireless communication apparatus to the wired network, the apparatus comprising: a connection device that connects to an authentication server that performs an authentication in accordance with a network connection request from the wireless communication apparatus and to an address assignment server that assigns a logical address to the wireless communication apparatus via the wired network; a storage device that stores a physical address of the wireless communication apparatus; a first determination device that determines, based on the physical address stored in the storage device and a physical address of the wireless communication apparatus that requests a connection with the data relay apparatus, whether to permit the wireless communication apparatus to connect; a second determination device that determines, based on an authentication result notification received from the authentication server, whether the authentication by the authentication server for the wireless communication apparatus has been successful; a processing device that causes the address assignment server to assign the logical address to the wireless communication apparatus, if the first determination device determines that the wireless communication apparatus is permitted to connect, even if the second determination device determines that the authentication by the authentication server for the wireless communication apparatus has failed, a receiving device that receives a packet transmitted from the wireless communication apparatus, the packet including a destination address of a destination communication apparatus; a third determination device that determines, based on the received packet, whether the destination address corresponds to a network address of a sub network formed by the data relay apparatus; and a relay device that: