To enable an information household electric appliance, which is communicable only within a closed network, and an information household electric appliance, which is communicable only within a closed network different from the above network, to perform a communication through an opened network by a simpler means.
This proxy apparatus 4 that can transmit and receive a message to/from a DLNA reference apparatus 6 existing in a home network 2 capsulates a message incommunicable to the Internet 3 regardless of being communicable within the home network 2 so as to be able to communicate with the Internet 3, transmits and receive the capsulated message through the Internet 3, decapsulates the capsulated message and transmits the decapsulated message into the home network 2 with the proxy apparatus 4 itself existing.
MIZUTANI MIKA
TAIRA SHIGEKI
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