| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To succeed a connection, utilizing IPv6, already established before moving to an IPv4 network. <P>SOLUTION: A mobile terminal 106 comprises a processing unit 118 and a processing part 113 for transmitting an IPv6 movement registration message and an IPv6 packet destined to another terminal by setting an IPv4 address of a movement supporting apparatus 107 to a transmission destination IPv4 address and adding an IPv4 header setting an IPv4 address in his own moving destination to the IPv4 address of the transmission source. The movement supporting apparatus 107 comprises processing parts 121 and 125 for transmitting the IPv6 movement permission message and an IPv6 packet destined to the mobile terminal by setting an IPv4 address in a moving destination of a mobile terminal to the transmission source IPv4 address and adding an IPv4 header setting its own IPv4 address to the transmission source IPv4 address, and a processing part 123 for excluding the IPv4 header of the IPv6 packet destined to the other terminal to which the received IPv4 header is added, and transmitting the packet again. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
