COMMUNICATION METHOD AND COMMUNICATION SYSTEM USING INTERNET PROTOCOL

摘要

PROBLEM TO BE SOLVED: To provide a communication method and a communication system for more safely performing communications via the Internet even in a normally connected environment wherein a dynamic IP address is lent.

SOLUTION: An IP address is reported from a remote controller to a server device, and the server device transports IP addresses of the remote controller and the user device to the both in response to a connection request from the user device having an access right. The remote controller sets an IP filter of a router to permit only connection from a designated IP address, so that communications can be safely performed.

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