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69 lines
1.9 KiB
69 lines
1.9 KiB
4 months ago
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.TH RTMON 8
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.SH NAME
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rtmon \- listens to and monitors RTnetlink
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.SH SYNOPSIS
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.B rtmon
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.RI "[ options ] file FILE [ all | LISTofOBJECTS ]"
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.SH DESCRIPTION
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This manual page documents briefly the
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.B rtmon
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command.
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.PP
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.B rtmon
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listens on
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.I netlink
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socket and monitors routing table changes.
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.I rtmon
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can be started before the first network configuration command is issued.
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For example if you insert:
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.B rtmon file /var/log/rtmon.log
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in a startup script, you will be able to view the full history later.
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Certainly, it is possible to start rtmon at any time. It prepends the history with the state snapshot dumped at the moment of starting.
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.SH OPTIONS
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.I rtmon supports the following options:
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.TP
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.B \-Version
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Print version and exit.
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.TP
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.B help
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Show summary of options.
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.TP
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.B file FILE [ all | LISTofOBJECTS ]
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Log output to FILE. LISTofOBJECTS is the list of object types that we
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want to monitor. It may contain 'link', 'address', 'route'
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and 'all'. 'link' specifies the network device, 'address' the protocol
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(IP or IPv6) address on a device, 'route' the routing table entry
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and 'all' does what the name says.
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.TP
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.B \-family [ inet | inet6 | link | help ]
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Specify protocol family. 'inet' is IPv4, 'inet6' is IPv6, 'link'
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means that no networking protocol is involved and 'help' prints usage information.
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.TP
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.B \-4
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Use IPv4. Shortcut for -family inet.
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.TP
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.B \-6
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Use IPv6. Shortcut for -family inet6.
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.TP
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.B \-0
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Use a special family identifier meaning that no networking protocol is involved. Shortcut for -family link.
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.SH USAGE EXAMPLES
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.TP
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.B # rtmon file /var/log/rtmon.log
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Log to file /var/log/rtmon.log, then run:
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.TP
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.B # ip monitor file /var/log/rtmon.log
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to display logged output from file.
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.SH SEE ALSO
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.BR ip (8)
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.SH AUTHOR
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.B rtmon
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was written by Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>.
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.PP
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This manual page was written by Michael Prokop <mika@grml.org>,
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for the Debian project (but may be used by others).
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