| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a reception terminal receiving multi-cast distribution by specifying a transmission source address to continuously receive the multi-cast data. <P>SOLUTION: A relay device 200 which relays multi-cast data from a transmission terminal 100 to a reception terminal 400, comprises a detection unit and a notification unit. The notification unit receives packets of the multi-cast data from the transmission terminal 100, and the detection unit detects a change in an address of the transmission terminal 100 based on a transmission source address of the packets and a multi-cast address. When the detection unit detects the change in the address of the transmission terminal 100, the notification unit notifies the reception terminal 400, which receives the packets by specifying the address of packet transmission terminal 100, of a changed address of the transmission terminal 100. <P>COPYRIGHT: (C)2013,JPO&INPIT |
