document: Towards NIC-based intrusion detection We present and evaluate a NIC-based network intrusion detection system . Intrusion detection at the NIC makes the system potentially tamper-proof and is naturally extensible to work in a distributed setting . Simple anomaly detection and signature detection based models have been implemented on the NIC firmware , which has its own processor and memory . We empirically evaluate such systems from the perspective of quality and performance ( bandwidth of acceptable messages ) under varying conditions of host load . The preliminary results we obtain are very encouraging and lead us to believe that such NIC-based security schemes could very well be a crucial part of next generation network security systems .
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