Network system, communication method of network system, electronic device, communication method of electronic device, communication apparatus, communication method of communication apparatus, storage medium, and computer program

摘要

When an IC card is placed close to an IC card reader/writer in a hard disk recorder, the hard disk recorder writes the profile thereof including an IP address on the IC card. The hard disk recorder reads a card ID and a profile list including, for example, the profile of a television receiver from the IC card. Based on the card ID and the profile list, the hard disk recorder accesses the television receiver. The hard disk recorder notifies the television receiver of the profile list which is read from the IC card and to which the profile of the hard disk recorder has been newly added. The hard disk recorder thus establishes a virtual private network with the television receiver.