摘要 |
In a transmitting node device, a first storing device stores address information and node identification information of a plurality of first specific node devices, a detecting device detects a change in address information of the transmitting node device, a first selecting device selects at least one node device from the first specific node devices, and a notifying device transmits an address change notification message to the node device selected by the first selecting device. In a receiving node device which receives the address change notification message, a second storing device stores address information and node identification information of a plurality of the second specific node devices, and an updating device updates the address information stored in the second storing device with the address information included in the received message.
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