| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To continuously keep an IPv6 network connection established prior to movement to an IPv4 network. <P>SOLUTION: A mobile terminal 106 comprises an IPv4-only movement registration processing unit 118 and an IPv6 packet transmission unit 113 in which an IPv4 address of a movement supporting apparatus 107 is set to a transmission destination IPv4 address for an IPv6 movement registration message and an another terminal destined IPv6 packet, and an IPv4 header to which an IPv4 address of its own movement destination is set to a transmission source IPv4 address, is added to transmit the message and the packet. The movement supporting apparatus 107 comprises an IPv6 movement support processing unit 121 in which an IPv4 address of the movement destination of the mobile terminal is set to a transmission destination IPv4 address for an IPv6 movement permission message and a mobile terminal destined IPv6 packet, and an IPv4 header to which its own IPv4 address is set to the transmission source IPv4 address to transmit the message and the packet. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
