fairly fast packet filter
Fairly fast packet filter (FFPF), an alternative platform for network monitoring under Linux. It is a stream-based networking subsystem for Linux that spans from hardware to userspace to offer high-speed communication paths to all applications. It transparently supports specialized hardware resources and in-kernel processing through safe functional units. FFPF is licensed under the GNU Lesser General Public License (GPL). [Adapted from FFPF Web site]
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