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TCP/IP is the most commonly-used protocol on the Internet. It provides a reliable transport for nearly all applications that utilize a network. These include Web browsers, FTP, Telnet, Secure Shell and other applications. New types of routers require the examination of TCP/IP flows transiting this networking equipment. This paper describes TCP-Splitter, a reconfigurable hardware based solution for analyzing and processing TCP/IP flows at multi-gigabit line rates. A consistent byte stream is delivered to a client application for every TCP/IP connection processed by TCP-Splitter. In order to maintain a design that is lightweight, efficient, and able to process a nearly unlimited number of flows at gigabit line rates, the system uses a non-passive flow processing algorithm.