Packet Filter (from here on referred to as PF) is OpenBSD's system for 
filtering TCP/IP traffic and doing Network Address Translation. PF is also 
capable of normalizing and conditioning TCP/IP traffic and providing bandwidth
control and packet prioritization. 

Version 2.00 of this port has the same function set as found in OpenBSD 3.4

Information about pf can be found at the website of Daniel Hartmeier, the
original author of PF: http://www.benzedrine.cx/pf.html and OpenBSD PF FAQ: 

http://www.openbsd.org/faq/pf/

WWW: http://pf4freebsd.love2party.net/

-Max <reports@pf4freebsd.love2party.net>