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Title: US6118784: Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
[ Derwent Title ]

Country: US United States of America

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35 pages

 
Inventor: Tsuchiya, Kazuaki; Yokohama, Japan
Ikeda, Naoya; Ebina, Japan
Hamamoto, Shinichi; Yamato, Japan
Watanabe, Ken; Kawasaki, Japan
Yasue, Toshikazu; Chigasaki, Japan
Atarashi, Yoshifumi; Zama, Japan
Sumikawa, Munechika; Hadano, Japan
Miyamoto, Takahisa; Kawasaki, Japan
Higuchi, Hidemitsu; Yokohama, Japan

Assignee: Hitachi, Ltd., Tokyo, Japan
other patents from HITACHI, LTD (252865) (approx. 26,413)
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Published / Filed: 2000-09-12 / 1997-10-28

Application Number: US1997000959462
IPC Code: Advanced: H04L 12/66; H04L 29/06; H04L 29/12;
IPC-7: H04J 3/16; H04L 12/28;

ECLA Code: H04L29/12A2A1; H04L12/66; H04L29/06J; H04L29/06J15; H04L29/12A; H04L29/12A4A1A; H04L29/12A4A8B; H04L61/15A1; H04L61/25A1A; H04L61/25A8B;

U.S. Class: Current: 370/401; 370/392; 370/466;
Original: 370/401; 370/466; 370/392;

Field of Search: 370/465,466,475,400,401,402,389,392 709/227,245

Priority Number:
1996-11-01  JP1996000291480
1997-08-07  JP1997000212889

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.

Attorney, Agent or Firm: Mattingly, Stanger & Malur ;

Primary / Asst. Examiners: Nguyen, Chau; Nguyen, Phuongchau Ba
INPADOC Legal Status: Show legal status actions          Buy Now: Family Legal Status Report

Designated Country: DE FR GB 

Family: Show 35 known family members
First Claim:
Show all 11 claims		 What is claimed is:     1. A method of communicating an IPv4 terminal of an IPv4 network and an IPv6 terminal of an IPv6 network in a communication network system comprising said IPv4 network, said IPv6 network, and an IPv4-IPv6 converting apparatus connected to both of said networks, comprising the steps of:
  • in accordance with that said IPv4 terminal inquires an IP address for a domain name of said IPv6 terminal to said IPv4-IPv6 converting apparatus, obtaining, in said IPv4-IPv6 converting apparatus, an IPv6 address for said domain name from a DNSv6 server apparatus for managing domain information of said IPv6 network;
  • capturing, in said IPv4-IPv6 converting apparatus, an IPv4 address corresponding to said IPv6 address from a DHCPv4 server apparatus for dynamically allocating IPv4 addresses and notifying said IPv4 terminal;
  • forming, in said IPv4 terminal, a first IPv4 packet by setting an own IPv4 address to an IPv4 source address and by setting said notified IPv4 address to an IPv4 destination address, and sending said first IPv4 packet to said IPv4-IPv6 converting apparatus; and
  • converting, in said IPv4-IPv6 converting apparatus, the IPv4 source address included in said received first IPv4 packet to an IPv6 source address by adding fixed data to said IPv4 source address, converting an IPv4 destination address included in said IPv4 packet to a corresponding IPv6 address, forming a first IPv6 packet from said first IPv4 packet, and sending said first IPv6 packet to said IPv6 network.
    •


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Forward References: Show 114 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (114)   |   Backward references (1)   |   Citation Link

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PDF		 Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 21pp US6038233  2000-03 Hamadoto et al.  Hitachi, Ltd. Translator for IP networks, network system using the translator, and IP network coupling method therefor
       
Foreign References: None

Other Abstract Info: DERABS G1998-243141

Other References:
  • R. Callon, D. Haskin, Routing Aspects of IPv6 Transition, www.rfc-editor.org, Sep. 1999.
  • G. Tsirtsis, P.Srisuresh, Network Address Translation-Protocol Translation (NAT-PT), www.rfc-editor.org, Feb. 2000.
  • R.Coltun, D. Ferguson, J.Moy, OSPF for IPv6, www.rfc-editor.org, Sep. 1999.
  • Request for Comments (RFC) 791, 1034, 1541, 1883, 1884, 1886 and 1918 issued by Internet Engineering Task Force (IETF) in Sep. 1981, Nov. 1987, Oct. 1993, Dec. 1995, Dec. 1995, Dec. 1995, and Feb. 1996; respectively.


    • Continuity Data:
    Application Number Filed Notes
    US1997000959462 1997-10-28  is a related to the prior publication
         US20020021703A1 issued 2002-02-21  Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US1997000959462 1997-10-28  is a related to the prior publication
         US20020021704A1 issued 2002-02-21  Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US1997000959462 1997-10-28  is a related to the prior publication
         US20020021705A1 issued 2002-02-21  Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US1997000959462 1997-10-28  is a related to the prior publication
         US20020021706A1 issued 2002-02-21  Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US1997000959462 1997-10-28  is a related to the prior publication
         US20020024960A1 issued 2002-02-28  Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US1997000959462 1997-10-28  is a related to the prior publication
         US20020136216A1 issued 2002-09-26  Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US1997000959462 1997-10-28  is a related to the prior publication
         US20020136237A1 issued 2002-09-26  Communicating method between IPv4 terminal and IPv6 terminal and IPv4 converting apparatus
    US1997000959462 1997-10-28  is a related to the prior publication
         US20020150112A1 issued 2002-10-17  Communication method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US1997000959462 1997-10-28  is a related to the prior publication
         US20050243828A1 issued 2005-11-03  Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US1997000959462 1997-10-28  is a related to the prior publication
         US20070133600A1 issued 2007-06-14  Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US1997000959462 1997-10-28  is a related to the prior publication
         US20100202459A1 issued 2010-08-12  COMMUNICATING METHOD BETWEEN IPv4 TERMINAL AND IPv6 TERMINAL AND IPv4-IPv6 CONVERTING APPARATUS
    13225796   is a continuation of
    US2010000764661  2010-04-21
         US8031716 issued 2011-10-04   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    12764661   is a continuation of
    US2007000699429  2007-01-30
         US7746863 issued 2010-06-29   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2007000699429 2007-01-30  is a continuation of
    US2005000179501  2005-07-13   (granted)
         US7193998 issued 2007-03-20   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    11699429   is a continuation of
    US2005000179501  2005-07-13
         US7193998 issued 2007-03-20   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2005000179501 2005-07-13  is a continuation of
    US2002000143973  2002-05-14   (granted)
         US6928077 issued 2005-08-09   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    11179501   is a continuation of
    US2002000143973  2002-05-14
         US6928077 issued 2005-08-09   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2002000143973 2002-05-14  is a continuation of
    US2000000614715  2000-07-12   (pending) [presumed granted]
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2002000143973 2002-05-14  is a continuation of
    US2000000614715  2000-07-12   (granted)
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2002000143973   is a continuation of
    US2000000614715  2000-07-12
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2002000143947 2002-05-14  is a continuation of
    US2000000614715  2000-07-12   (pending) [presumed granted]
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2002000143947   is a continuation of
    US2000000614715  2000-07-12
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2002000143761 2002-05-14  is a continuation of
    US2000000614715  2000-07-12   (pending) [presumed granted]
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2002000143761   is a continuation of
    US2000000614715  2000-07-12
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2001000983147 2001-10-23  is a continuation of
    US2000000614715  2000-07-12   (pending) [presumed granted]
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2001000983147   is a continuation of
    US2000000614715  2000-07-12   (pending) [presumed granted]
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2001000983146 2001-10-23  is a continuation of
    US2000000614715  2000-07-12   (pending) [presumed granted]
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2001000983146   is a continuation of
    US2000000614715  2000-07-12
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2001000983145 2001-10-23  is a continuation of
    US2000000614715  2000-07-12   (pending) [presumed granted]
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2001000983145   is a continuation of
    US2000000614715  2000-07-12
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2001000983144   is a continuation of
    US2000000614715  2000-07-12
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2001000983141 2001-10-23  is a continuation of
    US2000000614715  2000-07-12   (pending) [presumed granted]
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2001000983141   is a continuation of
    US2000000614715  2000-07-12
         US6690669 issued 2004-02-10   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2000000614715 2000-07-12  is a continuation of
    >US1997000959462<  1997-10-28   (granted)
         US6118784 issued 2000-09-12   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus
    US2000000614715   is a continuation of
    >US1997000959462<  1997-10-28
         US6118784 issued 2000-09-12   Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus


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