From owner-freebsd-hackers  Fri Feb 21 04:53:11 1997
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From: Darren Reed <darrenr@cyber.com.au>
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Subject: Paper on packet matching.
To: hackers@freebsd.org
Date: Fri, 21 Feb 1997 23:53:02 +1100 (EST)
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I mentioned earlier that there was a paper on a different mechanism
for matching packets in a filter (faster than BPF).  I don't have a URL
but the reference is:

Mary L. Bailey, Durra Gopal, Michael A. Pagels, Larry L. Peterson,
     Prasenjit Sarkar, "PathFinder", 1st OSDI, November 1994