Communication apparatus, method and program for realizing...

Details Communication apparatus, method and program for realizing... Communication apparatus, method and program for realizing...

2005-04-05

2008-11-25

Pham, Chi H (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C709S245000

Reexamination Certificate

active

07457293

ABSTRACT:
A communication apparatus includes a global address information acquiring section for acquiring first global address information, a WAN-side address information acquiring section for acquiring first WAN-side address information, and a local address information acquiring section for acquiring first local address information. Moreover, the apparatus includes an address information notification section for notifying the first global address information, the first WAN-side address information, and the first local address information to a communication partner apparatus. Furthermore, the apparatus includes an address information acquiring section for acquiring second global address information, a second WAN-side address information, and a second local address information assigned to the communication partner apparatus. The communication apparatus determines a method by which P2P connection can be established based on the first and second global address information, the first and second WAN-side address information, and the first and second local address information.

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