1.\" Copyright (c) 2006 Niclas Zeising
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.
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17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23.\" SUCH DAMAGE.
24.\"
25.\" $FreeBSD: head/usr.sbin/ipfwpcap/ipfwpcap.8 162893 2006-09-30 19:07:03Z ru $
26.\"
27.Dd May 22, 2006
28.Dt IPFWPCAP 8
29.Os
30.Sh NAME
31.Nm ipfwpcap
32.Nd "copy diverted packets to a file in tcpdump format"
33.Sh SYNOPSIS
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49to a port on which
50.Nm
51listens.
52The packets are then dropped unless
53.Fl r
54is used.
55.Pp
56The options are as follows:
57.Bl -tag -width indent
58.It Fl d
59Turns on extra debugging messages.
60.It Fl r
61Writes packets back to the
62.Xr divert 4
63socket.
64.It Fl rr
65Indicates that it is okay to quit if
66.Ar maxbytes
67or
68.Ar maxpkts
69are reached.
70Diverted packets will silently disappear if nothing is listening on the
71.Xr divert 4
72socket.
73.It Fl b Ar maxbytes
74Stop dumping after
75.Ar maxbytes
76bytes.
77.It Fl p Ar maxpkts
78Stop dumping after
79.Ar maxpkt
80packets.
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88.Ar portnum
89argument specifies which
90.Xr divert 4
91socket port to listen on.
92The
93.Ar dumpfile
94argument is the path to the file to write captured packets to.
95Specify
96.Sq Fl
97to write to stdout.
98.Sh EXIT STATUS
99.Ex -std
100.Sh EXAMPLES
101.Dl "ipfwpcap -r 8091 divt.log &"
102.Pp
103Starts
104.Nm
105as a background job listening to port 8091 and reflecting the packets
106back to the socket.
107.Pp
108.Dl "ipfw add 2864 divert 8091 ip from 192.0.2.101"
109.Pp
110Example
111.Xr ipfw 8
112rule to divert all packets from 192.0.2.101 to port 8091.
113See
114.Xr ipfw 8
115for details.
116.Sh SEE ALSO
117.Xr tcpdump 1 ,
118.Xr pcap 3 ,
119.Xr divert 4 ,
120.Xr ipfw 8
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2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.
--- 8 unchanged lines hidden (view full) ---
17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23.\" SUCH DAMAGE.
24.\"
25.\" $FreeBSD: head/usr.sbin/ipfwpcap/ipfwpcap.8 162893 2006-09-30 19:07:03Z ru $
26.\"
27.Dd May 22, 2006
28.Dt IPFWPCAP 8
29.Os
30.Sh NAME
31.Nm ipfwpcap
32.Nd "copy diverted packets to a file in tcpdump format"
33.Sh SYNOPSIS
--- 15 unchanged lines hidden (view full) ---
49to a port on which
50.Nm
51listens.
52The packets are then dropped unless
53.Fl r
54is used.
55.Pp
56The options are as follows:
57.Bl -tag -width indent
58.It Fl d
59Turns on extra debugging messages.
60.It Fl r
61Writes packets back to the
62.Xr divert 4
63socket.
64.It Fl rr
65Indicates that it is okay to quit if
66.Ar maxbytes
67or
68.Ar maxpkts
69are reached.
70Diverted packets will silently disappear if nothing is listening on the
71.Xr divert 4
72socket.
73.It Fl b Ar maxbytes
74Stop dumping after
75.Ar maxbytes
76bytes.
77.It Fl p Ar maxpkts
78Stop dumping after
79.Ar maxpkt
80packets.
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88.Ar portnum
89argument specifies which
90.Xr divert 4
91socket port to listen on.
92The
93.Ar dumpfile
94argument is the path to the file to write captured packets to.
95Specify
96.Sq Fl
97to write to stdout.
98.Sh EXIT STATUS
99.Ex -std
100.Sh EXAMPLES
101.Dl "ipfwpcap -r 8091 divt.log &"
102.Pp
103Starts
104.Nm
105as a background job listening to port 8091 and reflecting the packets
106back to the socket.
107.Pp
108.Dl "ipfw add 2864 divert 8091 ip from 192.0.2.101"
109.Pp
110Example
111.Xr ipfw 8
112rule to divert all packets from 192.0.2.101 to port 8091.
113See
114.Xr ipfw 8
115for details.
116.Sh SEE ALSO
117.Xr tcpdump 1 ,
118.Xr pcap 3 ,
119.Xr divert 4 ,
120.Xr ipfw 8
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