Patent ID: 7620027

Claim:
A communication system, comprising: multiple connection devices; storing means in each of the multiple connection devices for storing information pertaining to communication devices to which each connection device permits a connection; determining means for determining, by means of a first connection device making an inquiry to another connection device about permission for a communication device to make a connection, a connection device to which the communication device should connect, based on information stored in the storing means, wherein the first connection device further comprises registering means for registering the connection device to which the inquiry is performed and the determining means performs the inquiry to a connection device other than the connection device registered in the registering means in a case where the determining means could not determine the connection device to which the communication device should connect after an inquiry made based on the registration in the registering means ; and notifying means for notifying to the communication device information for connecting to the connection device determined by the determining means.