$FreeBSD: head/share/man/man4/ipfirewall.4 107383 2002-11-29 11:39:20Z ru $

.Dd October 28, 2002 .Dt IPFW 4 .Os .Sh NAME .Nm ipfw .Nd IP packet filter and traffic accounting .Sh DESCRIPTION The .Nm system facility allows filtering, redirecting, and other operations on .Tn IP packets travelling through network interfaces.

p The user interface for .Nm is implemented by the .Xr ipfw 8 utility, so please refer to the .Xr ipfw 8 manpage for a complete description of the .Nm capabilities and how to use it. .Ss Kernel Options The following options in the kernel configuration file are related to .Nm operation:

p l -tag -width ".Dv IPFIREWALL_VERBOSE_LIMIT" -compact t Dv IPFIREWALL enable .Nm t Dv IPFIREWALL_VERBOSE enable .Nm logging t Dv IPFIREWALL_VERBOSE_LIMIT limit .Nm logging t Dv IPDIVERT enable .Xr divert 4 sockets .El .Sh SEE ALSO .Xr setsockopt 2 , .Xr divert 4 , .Xr ip 4 , .Xr ipfw 8 , .Xr sysctl 8 , .Xr syslogd 8