Method and apparatus to permit data transmission to traverse...

Multiplex communications – Pathfinding or routing – Switching a message which includes an address header

Reexamination Certificate

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Details

C370S401000, C726S011000

Reexamination Certificate

active

07602784

ABSTRACT:
Currently data transmission over the Internet between two client computers where both client computers are protected by firewalls is problematic, since firewalls block incoming packets. A method is provided for permitting packet based data transmission between a first client computer C1protected by a first NAPT or NAT firewall and a second client computer C2protected by a second NAPT or NAT firewall to traverse the first and the second firewalls. The method can also be applied to other devices, such as routers, using NAT or NAPT.

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