Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
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United States of America Patent
Stats
-
Jul 4, 2006
Grant Date -
Feb 21, 2002
app pub date -
Oct 23, 2001
filing date -
Nov 1, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
In an apparatus, there are provided an IP transmitting and receiving unit for transmitting and receiving an IPv4 packet and an IPv6 packet; an IP header converting unit for performing a mutual conversion of the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS substituting unit for receiving a domain information capturing request sent from an IPv4 terminal or an IPv6 terminal and substituting its process; an IPv4 address capturing unit for capturing an IPv4 address from a DHCP server; and an IP address conversion information holding unit for holding an IPv6 address of the IPv6 terminal and the IPv4 address captured by the IPv4 address capturing unit in correspondence to each other. Thus, a communication with the IPv4 terminal can be executed without preliminarily fixedly allocating the IPv4 address to the IPv6 terminal.
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