Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-06-05
2007-06-05
Ferguson, Keith (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S422100, C455S466000, C455S426200, C455S403000, C455S410000, C455S411000, C455S500000, C370S312000, C370S389000, C370S392000, C370S310000, C370S328000, C380S270000, C380S031000, C380S033000, C380S247000, C380S249000
Reexamination Certificate
active
11214892
ABSTRACT:
A mobile host MH and its home network HN correspond to both the Internet Protocol version 4 (IPv4) and the Internet Protocol version 6 (IPv6). An authentication server (RS) is accommodated in the home network HN. A corresponding host H corresponds to the IPv6 and is accommodated in the IPv6 network. In addition, a plurality of relay servers S1, S2and S3corresponding to both the IPv4 and the IPv6 are accommodated in the IPv6 network. The respective S1, S2and S3extract an IPv6 packet by decapsulating the IPv4 packet received from the mobile host MH via the IPv4 network, and transfers the relevant IPv6 packet to the corresponding host H via the IPv6 network.
REFERENCES:
patent: 2004/0088385 (2004-05-01), Blanchet et al.
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patent: 2005/0152298 (2005-07-01), Thubert et al.
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F. Templin, et al., Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) draft-ietf-ngtrans-isatap-22.txt, Networking Group, Internet-Draft, May 26, 2004, Expires: Nov. 26, 2004, pp. 1-14.
B. Carpenter, et al., “Connection of IPv6 Domains via IPv4 Clouds”, Networking Group, Request for Comments: 3056, Category: Standards Track, Feb. 2001, pp. 1-23.
Idoue Akira
Yokota Hidetoshi
Ferguson Keith
KDDI Corporation
Westerman, Hattori, Daniels & Adrian , LLP.
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