The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 17, 2016

Filed:

Mar. 06, 2012
Applicant:

Yoshifumi Tanimoto, Kyoto, JP;

Inventor:

Yoshifumi Tanimoto, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 29/12 (2006.01); H04L 12/751 (2013.01); H04L 29/06 (2006.01); H04L 12/741 (2013.01);
U.S. Cl.
CPC ...
H04L 61/2535 (2013.01); H04L 45/02 (2013.01); H04L 45/74 (2013.01); H04L 63/0272 (2013.01); H04L 61/2007 (2013.01);
Abstract

A relay server stores a routing apparatus belonging to a VPN group to which the relay server itself belongs, a second routing object address that is an address of the routing apparatus, and the like. The relay server stores a relationship of assignment of a virtual address to the second routing object address. The virtual address is an address that does not overlap with addresses of any other apparatuses. The relay server, upon receipt of a packet from a routing session, converts a source of the packet from an actual address into the virtual address and forwards the packet to a routing object device of the relay server itself. The relay server, upon receipt of a packet from the routing object device of the relay server itself, converts a destination of the packet from the virtual address into an actual address and forwards the packet to the routing session.


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