Distributed network security system and a hardware processor therefor

  • US 7,415,723 B2
  • Filed: 02/20/2004
  • Issued: 08/19/2008
  • Est. Priority Date: 06/11/2002
  • Status: Active Grant
First Claim
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1. A network system comprising:

  • a network configured to transport network traffic, wherein said network comprises a plurality of distributed security systems providing multiple protocol layer security, wherein each of said distributed security systems comprises at least one host processor and said distributed security systems comprise a hardware processor offloading overhead of transport layer protocol processing from said at least one host processor, wherein said hardware processor is other than said at least one host processor and is configured to receive a command from said at least one host processor,said hardware processor comprising;

    a protocol processing engine to do transport layer protocol processing;

    a programmable rule-matching engine to analyze the network traffic for security rule matching or taking actions on matched security rules;

    an authentication engine to do encryption, decryption, authorization or authentication using standard or proprietary security protocols; and

    a packet classification engine to classify the network traffic.

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