1 .\" Copyright (c) 2006 Niclas Zeising <zeising@FreeBSD.org>
2 .\" All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
8 .\" notice, this list of conditions and the following disclaimer.
9 .\" 2. Redistributions in binary form must reproduce the above copyright
10 .\" notice, this list of conditions and the following disclaimer in the
11 .\" documentation and/or other materials provided with the distribution.
13 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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
32 .Nd "copy diverted packets to a file in tcpdump format"
44 utility is used to copy diverted packets to a file in
47 The interesting packets are diverted by
52 The packets are then dropped unless
56 The options are as follows:
57 .Bl -tag -width indent
59 Turns on extra debugging messages.
61 Writes packets back to the
65 Indicates that it is okay to quit if
70 Diverted packets will silently disappear if nothing is listening on the
82 File to store PID number in.
84 .Pa /var/run/ipwfpcap.portnr.pid .
89 argument specifies which
91 socket port to listen on.
94 argument is the path to the file to write captured packets to.
101 .Dl "ipfwpcap -r 8091 divt.log &"
105 as a background job listening to port 8091 and reflecting the packets
108 .Dl "ipfw add 2864 divert 8091 ip from 192.0.2.101"
112 rule to divert all packets from 192.0.2.101 to port 8091.
124 utility first appeared in
130 .An P. Kern Aq pkern@cns.utoronto.ca .
131 This manual page was written by
132 .An Niclas Zeising Aq zeising@FreeBSD.org .