xref: /dflybsd-src/share/man/man4/ipfirewall.4 (revision 86d7f5d305c6adaa56ff4582ece9859d73106103)
1*86d7f5d3SJohn Marino.\"
2*86d7f5d3SJohn Marino.\" $FreeBSD: src/share/man/man4/ipfirewall.4,v 1.19.2.7 2002/11/18 21:51:16 luigi Exp $
3*86d7f5d3SJohn Marino.\" $DragonFly: src/share/man/man4/ipfirewall.4,v 1.5 2007/07/29 16:43:05 swildner Exp $
4*86d7f5d3SJohn Marino.\"
5*86d7f5d3SJohn Marino.Dd June 22, 1997
6*86d7f5d3SJohn Marino.Dt IPFW 4
7*86d7f5d3SJohn Marino.Os
8*86d7f5d3SJohn Marino.Sh NAME
9*86d7f5d3SJohn Marino.Nm ipfw
10*86d7f5d3SJohn Marino.Nd IP packet filter and traffic accounting
11*86d7f5d3SJohn Marino.Sh DESCRIPTION
12*86d7f5d3SJohn Marino.Nm Ipfw
13*86d7f5d3SJohn Marinois a system facility which allows filtering,
14*86d7f5d3SJohn Marinoredirecting, and other operations on IP packets travelling through
15*86d7f5d3SJohn Marinosystem interfaces.
16*86d7f5d3SJohn Marino.Pp
17*86d7f5d3SJohn MarinoThe user interface for
18*86d7f5d3SJohn Marino.Nm
19*86d7f5d3SJohn Marinois implemented by the
20*86d7f5d3SJohn Marino.Xr ipfw 8
21*86d7f5d3SJohn Marinoprogram.
22*86d7f5d3SJohn Marino.Sh KERNEL OPTIONS
23*86d7f5d3SJohn MarinoThe following options in the kernel configuration file are related to
24*86d7f5d3SJohn Marino.Nm
25*86d7f5d3SJohn Marinooperation:
26*86d7f5d3SJohn MarinoOptions in the kernel configuration file:
27*86d7f5d3SJohn Marino.Bl -tag -width ".Cd options IPFIREWALL_VERBOSE_LIMIT"
28*86d7f5d3SJohn Marino.It Cd options IPFIREWALL
29*86d7f5d3SJohn Marinoenable
30*86d7f5d3SJohn Marino.Nm
31*86d7f5d3SJohn Marino.It Cd options IPFIREWALL_VERBOSE
32*86d7f5d3SJohn Marinoenable firewall logging
33*86d7f5d3SJohn Marino.It Cd options IPFIREWALL_VERBOSE_LIMIT
34*86d7f5d3SJohn Marinolimit firewall logging
35*86d7f5d3SJohn Marino.It Cd options IPDIVERT
36*86d7f5d3SJohn Marinoenable
37*86d7f5d3SJohn Marino.Xr divert 4
38*86d7f5d3SJohn Marinosockets
39*86d7f5d3SJohn Marino.El
40*86d7f5d3SJohn Marino.Sh SEE ALSO
41*86d7f5d3SJohn Marino.Xr setsockopt 2 ,
42*86d7f5d3SJohn Marino.Xr divert 4 ,
43*86d7f5d3SJohn Marino.Xr ip 4 ,
44*86d7f5d3SJohn Marino.Xr ipfw 8 ,
45*86d7f5d3SJohn Marino.Xr sysctl 8 ,
46*86d7f5d3SJohn Marino.Xr syslogd 8
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