Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2004-11-08
2009-06-02
Pérez-Gutiérrez, Rafael (Department: 2617)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S401000, C370S392000, C709S245000, C709S238000, C709S249000
Reexamination Certificate
active
07542466
ABSTRACT:
In order to realize NAT traversal communication at low cost and without fail, local communication terminals connected as subordinates of a first router having a UPnP™ function obtain an IP address and a port number, both to be converted by a NAT function of the first router, on the basis of a UPnP™ protocol to register them in a relay server as exchange information for the NAT traversal. Local communication terminals connected as subordinates of a second router without the UPnP™ function specify an IP address to be converted by the NAT function of the second router on the basis of a packet obtained from a STUN server and estimate a port number to be converted by the NAT function of the second router to register them in the relay server as the exchange information for the NAT traversal. The present invention may be applied to a personal computer.
REFERENCES:
patent: 7242681 (2007-07-01), Van Bokkelen et al.
patent: 7243141 (2007-07-01), Harris
patent: 7328280 (2008-02-01), Takeda et al.
patent: 2004/0139227 (2004-07-01), Takeda
patent: 2004/0139228 (2004-07-01), Takeda et al.
patent: 2005/0141445 (2005-06-01), Dunas et al.
patent: 2004-104357 (2004-04-01), None
patent: 2004-304317 (2004-10-01), None
patent: 2005-117587 (2005-04-01), None
patent: 2005-525750 (2005-08-01), None
patent: WO 03/096653 (2003-11-01), None
Aoki Yukihiko
Ikenaga Toshiya
Kawano Shinichi
Ozawa Takeshi
Di Prisco German Viana
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Perez-Gutierrez Rafael
Sony Corporation
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