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:
Oct. 06, 2015

Filed:

Mar. 30, 2006
Applicants:

Diheng Qu, Santa Clara, CA (US);

Nicholas Leavy, Paris, FR;

Inventors:

Diheng Qu, Santa Clara, CA (US);

Nicholas Leavy, Paris, FR;

Richard Fox, Sunnyvale, CA (US);

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/173 (2006.01); G06F 15/16 (2006.01); H04L 29/06 (2006.01); H04L 29/12 (2006.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H04L 63/14 (2013.01); H04L 29/12377 (2013.01); H04L 29/12509 (2013.01); H04L 61/2517 (2013.01); H04L 61/2567 (2013.01); H04L 67/2814 (2013.01);
Abstract

Methods and apparatus are disclosed for processing data packets using a router and a proxy in order to transparently proxy a connection between a client and a server. One method involves mapping a TCP connection to a connection ID and sending a segment from the TCP connection to a proxy, including the connection ID, a direction value and an identifier of an assigned proxy application, such that the segment appears to be from the connection. The method further involves a proxy creating and reading from an IP socket which corresponds to the segment, the connection ID, direction and assigned proxy application and then spoofing the segment using the connection ID, a second direction value, and an identifier of the assigned proxy application.


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