87 lines
2.3 KiB
Groff
87 lines
2.3 KiB
Groff
.\" $NetBSD: ipmon.8,v 1.4 1998/01/09 08:09:31 perry Exp $
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.\"
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.TH ipmon 8
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.SH NAME
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ipmon \- monitors /dev/ipl for logged packets
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.SH SYNOPSIS
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.B ipmon
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[
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.B \-aFhnNsStvxX
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] [
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.B "\-f <device>"
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] [
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.B <filename>
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]
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.SH DESCRIPTION
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.LP
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\fBipmon\fP opens \fB/dev/ipl\fP for reading and awaits data to be saved from
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the packet filter. The binary data read from the device is reprinted in
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human readable for, however, IP#'s are not mapped back to hostnames, nor are
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ports mapped back to service names. The output goes to standard output by
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default or a filename, if given on the command line. Should the \fB\-s\fP
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option be used, output is instead sent to \fBsyslogd(8)\fP. Messages sent
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via syslog have the day, month and year removed from the message, but the
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time (including microseconds), as recorded in the log, is still included.
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.SH OPTIONS
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.TP
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.B \-a
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Open all of the device logfiles for reading log entries from. All entries
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are displayed to the same output 'device' (stderr or syslog).
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.TP
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.B "\-f <device>"
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specify an alternative device/file from which to read the log information.
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.TP
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.B \-F
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Flush the current packet log buffer. The number of bytes flushed is displayed,
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even should the result be zero.
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.TP
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.B \-n
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IP addresses and port numbers will be mapped, where possible, back into
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hostnames and service names.
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.TP
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.B \-N
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Treat the logfile as being composed of NAT log records.
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.TP
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.B \-s
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Packet information read in will be sent through syslogd rather than
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saved to a file. The following levels are used:
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.IP
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.B LOG_INFO
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\- packets logged using the "log" keyword as the action rather
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than pass or block.
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.IP
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.B LOG_NOTICE
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\- packets logged which are also passed
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.IP
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.B LOG_WARNING
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\- packets logged which are also blocked
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.IP
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.B LOG_ERR
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\- packets which have been logged and which can be considered
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"short".
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.TP
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.B \-S
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Treat the logfile as being composed of state log records.
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.TP
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.B \-t
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read the input file/device in a manner akin to tail(1).
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.TP
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.B \-x
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show the packet data in hex.
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.TP
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.B \-X
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show the log header record data in hex.
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.SH DIAGNOSTICS
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\fBipmon\fP expects data that it reads to be consistant with how it should be
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saved and will abort if it fails an assertion which detects an anomoly in the
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recorded data.
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.SH FILES
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/dev/ipl
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.br
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/dev/ipnat
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.br
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/dev/ipstate
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.SH SEE ALSO
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ipl(4), ipf(8), ipfstat(8), ipnat(8)
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.SH BUGS
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