Snort offloader: a reconfigurable hardware NIDS filter

  title={Snort offloader: a reconfigurable hardware NIDS filter},
  author={Haoyu Song and Todd S. Sproull and Michael Attig and John W. Lockwood},
  journal={International Conference on Field Programmable Logic and Applications, 2005.},
Software-based network intrusion detection systems (NIDS) often fail to keep up with high-speed network links. In this paper an FPGA-based pre-filter is presented that reduces the amount of traffic sent to a software-based NIDS for inspection. Simulations using real network traces and the Snort rule set show that a pre-filter can reduce up to 90% of network traffic that would have otherwise been processed by Snort software. The projected performance enables a computer to perform real-time… CONTINUE READING
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