From owner-freebsd-pf@FreeBSD.ORG  Mon Sep 22 11:53:40 2008
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Date: Mon, 22 Sep 2008 13:53:32 +0200
From: Leslie Jensen <leslie@eskk.nu>
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Subject: Explanation of macro
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I'm setting up a pf firewall and came across this macro

SYN_ONLY="S/FSRA"

Have tried to find out what it does but have not been successful.

Will someone explain Please?
Thanks
/Leslie