The extensive use of computers and networks for exchange of information has also had ramifications on the growth and spread of crime through their use. Law enforcement agencies need to keep up with the emerging trends in these areas for crime detection and prevention. Among the several needs of such agencies are the need to monitor, detect and analyze undesirable network traffic. However, the monitoring, detecting, and analysis of this traffic may be against the goal of maintaining privacy of individuals whose network communications are being monitored. Also, the bandwidth at network backbones and Internet Service Providers is increasing rapidly due to the increase in network usage. This increase in bandwidth imposes an additional requirement on Network Monitoring Tools to monitor traffic at very high speeds without losing any relevant information.
PickPacket is a network monitoring tool that can handle the conflicting issues of network monitoring and privacy through its judicious use. This thesis discusses the design and development of a network monitoring tool called Gigabit PickPacket, an enhanced version of PickPacket for monitoring network at Gigabit speed. This tool effectively uses the support of multiprocessor and/or multiple machines for monitoring traffic at very high speeds.
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