Patent ID: 9160706
Filing Date: 2015-10-13
Classification: H04L

Abstract:
1. A communications system including a public address domain and a local area network segment comprising at least one private network address domain, the respective private network address domain corresponding to a respective local area network, the communications system including: a memory; a processor; in said local area network segment: at least one addressing device intermittently connectable to at least one of the local area networks and when connected to the at least one local area network, having a private network address within the respective private network address domain; at least one service providing device for providing a service to one or more of said at least one addressing device, the at least one service providing device being intermittently connectable to at least one of the local area networks and when connected to the at least one local area network, having a private network address within the respective private network address domain; at least one boundary device provided at the boundary of said local area network segment and said public network address domain and arranged to provide translation between a private network address and a public network address; and in said public address domain: a first data store storing presence information for at least one service providing device comprising: an identifier for said at least one service providing device; a second data store storing signature information for the at least one service addressing device comprising: a network addressing server for providing addressing information of said at least one service providing device to said at least one addressing device, the network addressing server comprising: