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IPFW(4)		       FreeBSD Kernel Interfaces Manual		       IPFW(4)

NAME
     ipfw -- IP	packet filter and traffic accounting

DESCRIPTION
     The ipfw system facility allows filtering,	redirecting, and other opera-
     tions on IP packets travelling through network interfaces.

     The user interface	for ipfw is implemented	by the ipfw(8) utility,	so
     please refer to the ipfw(8) manpage for a complete	description of the
     ipfw capabilities and how to use it.

   Kernel Options
     The following options in the kernel configuration file are	related	to
     ipfw operation:

     IPFIREWALL		       enable ipfw
     IPFIREWALL_VERBOSE	       enable ipfw logging
     IPFIREWALL_VERBOSE_LIMIT  limit ipfw logging
     IPDIVERT		       enable divert(4)	sockets

SEE ALSO
     setsockopt(2), divert(4), ip(4), ipfw(8), sysctl(8), syslogd(8), pfil(9)

FreeBSD	10.1		      September	22, 2004		  FreeBSD 10.1

NAME | DESCRIPTION | SEE ALSO

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<http://www.freebsd.org/cgi/man.cgi?query=ipfirewall&sektion=4&manpath=FreeBSD+5.3-RELEASE>

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