| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To communicate with an IPv4 terminal, even if an IPv4 address has not been previously allocated to an IPv6 terminal by fixing, and further communicate, without assigning to what is used as a communication protocol mutually by a counterpart, by designating the counterpart with a domain name. <P>SOLUTION: The address-notifying method comprises IP for transmitting and receiving means 10 for transmitting and receiving an IPv4 packet and an IPv6 packet an IP header conversion means 11 for making mutual conversion between the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS proxy means 13 for accepting a domain information acquisition request, transmitted from an IPv4 terminal or an IPv6 terminal and performing the processing as a proxy; IPv4 address acquiring means 14 for acquiring the IPv4 address from a DHCP server; and an IP address conversion information holding means 15 for holding the IPv6 address of the IPv6 terminal and the IPv4 address, acquired by the IPv4 address acquiring means 14 associated between them. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
