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Architecture for a hardware based, TCP/IP content scanning system [intrusion detection system applications]

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3 Author(s)
Schuehler, D.V. ; Appl. Res. Lab., Washington Univ., DC, USA ; Moscola, J. ; Lockwood, J.

Hardware assisted intrusion detection systems and content scanning engines are needed to process data at multiGigabit line rates. These systems, when placed within the core of the Internet, are subject to millions of simultaneous flows, with each flow potentially containing data of interest. Existing IDS systems are not capable of processing millions of flows at Gigabit-per-second data rates. This paper describes an architecture which is capable of performing complete, stateful, payload inspections on 8 million TCP flows at 2.5 Gigabits-per-second. To accomplish this task, a hardware circuit is used to combine a TCP protocol processing engine, a per flow state store, and a content scanning engine.

Published in:

High Performance Interconnects, 2003. Proceedings. 11th Symposium on

Date of Conference:

20-22 Aug. 2003

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