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29 .Nd "copy diverted packets to a file in tcpdump format"
41 utility is used to copy diverted packets to a file in
44 The interesting packets are diverted by
49 The packets are then dropped unless
53 The options are as follows:
54 .Bl -tag -width indent
56 Turns on extra debugging messages.
58 Writes packets back to the
62 Indicates that it is okay to quit if
67 Diverted packets will silently disappear if nothing is listening on the
79 File to store PID number in.
81 .Pa /var/run/ipwfpcap.portnr.pid .
86 argument specifies which
88 socket port to listen on.
91 argument is the path to the file to write captured packets to.
98 .Dl "ipfwpcap -r 8091 divt.log &"
102 as a background job listening to port 8091 and reflecting the packets
105 .Dl "ipfw add 2864 divert 8091 ip from 192.0.2.101"
109 rule to divert all packets from 192.0.2.101 to port 8091.
121 utility first appeared in
127 .An P. Kern Aq Mt pkern@cns.utoronto.ca .
128 This manual page was written by
129 .An Niclas Zeising Aq Mt zeising@FreeBSD.org .