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The fairly fast packet filter (FFPF) adds many new features to existing filtering solutions. It is designed for high speed by pushing computationally intensive tasks to the kernel or to network processors, and by minimising packet copying. Also, since it provides a richer programming language and explicit extensibility, it is more flexible than existing approaches. Using its extensibility, the language can even be used as a meta- filter to "script" together filters from other approaches.


Developer's reference manual available in HTML format from


Download version 1.3.3 (stable)
released on 17 November 2004

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Related Projects


LicenseVerified byVerified onNotes
GPLv2orlaterJanet Casey29 October 2004

Leaders and contributors

Willem de Bruijn Maintainer

Resources and communication

Audience Resource type URI
Developer VCS Repository Webview
Bug Tracking VCS Repository Webview
Developer Mailing List Info/Archive

Software prerequisites

Kind Description
Required to use glibc
Required to use gcc
Required to use binutils

This entry (in part or in whole) was last reviewed on 17 November 2004.


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