Network system and communication method

Details Network system and communication method Network system and communication method

2005-08-30

2009-06-09

Mattis, Jason E (Department: 2416)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S392000, C370S474000

Reexamination Certificate

active

07545821

ABSTRACT:
A network system and a communication method are provided to solve an NAT problem to functionalize a P2P application in case that new port information (number is assigned to an NAT device. One communication device sends a pseudo-packet containing an address of another communication device, to a port information transmitting device via an address translation device; the port information transmitting device sends a response to the received pseudo-packet to the communication device; and the address translation device assigns new port information corresponding to the communication device address using the response and sends the address of the communication device and the assigned port information to the communication device. The communication device sends the received address of the communication device and the assigned port information to another communication device; and another communication device transmits information with the communication device using the received address of the communication device and the assigned port information.

REFERENCES:
patent: 7023847 (2006-04-01), Zhang
patent: 7035257 (2006-04-01), Vafaei
patent: 7110402 (2006-09-01), Block et al.
patent: 7418511 (2008-08-01), Takechi et al.
patent: 2004-304317 (2004-10-01), None

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