Delayed network protocol proxy for packet inspection in a network

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United States of America Patent

PATENT NO 9118717
APP PUB NO 20060190612A1
SERIAL NO

11061248

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Abstract

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An intermediary device, which behaves as a proxy for two entities after the entities have established a connection between themselves, is disclosed, as is a method that may be performed by such a device. The intermediary device can inspect a complete message, whose parts may be spread among multiple separate packets, without engaging in handshake phases with the message's origin or destination. As a first entity negotiates connection parameters with a second entity, the intermediary device stores the connection parameters as the parameters flow through the intermediary device. After the two entities have established an original connection, the intermediary device uses the intercepted parameters to form two separate connections in the place of the original connection: one between the intermediary device and the first entity, and another between the intermediary device and the second entity. To the entities, the newly formed connections appear to be same as the original connection.

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Patent Owner(s)

Patent OwnerAddress
CISCO TECHNOLOGY INC170 WEST TASMAN DRIVE SAN JOSE CA 95134-1706

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kahol, Anurag Fremont, US 12 336
Majee, Sumandra San Jose, US 6 65
Mathison, Paul Sunnyvale, US 1 32
Waterman, Alex Los Gatos, US 4 38

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