FPsed: a streaming content search-and-replace module for an Internet firewall

A module has been implemented in field programmable gate array (FPGA) hardware that is able to perform regular expression search-and-replace operations on the content of Internet packets at Gigabit/second rates. All of the packet processing operations are performed using reconfigurable hardware within a single Xilinx Virtex XCV2000E FPGA. A set of layered protocol wrappers is used to parse the headers and payloads of packets for Internet protocol data. A content matching server automatically generates, compiles, synthesizes, and programs the module into the field-programmable port extender (FPX) platform.