rtmon - listens to and monitors RTnetlink
[ options ] file FILE [ all | LISTofOBJECTS ]
This manual page documents briefly the rtmon
listens on netlink
socket and monitors routing table
can be started before the first network configuration command is
issued. For example if you insert:
rtmon file /var/log/rtmon.log
in a startup script, you will be able to view the full history later. Certainly,
it is possible to start rtmon at any time. It prepends the history with the
state snapshot dumped at the moment of starting.
rtmon supports the following options:
- Print version and exit.
- Show summary of options.
- file FILE [ all | LISTofOBJECTS ]
- Log output to FILE. LISTofOBJECTS is the list of object
types that we want to monitor. It may contain 'link', 'address', 'route'
and 'all'. 'link' specifies the network device, 'address' the protocol (IP
or IPv6) address on a device, 'route' the routing table entry and 'all'
does what the name says.
- -family [ inet | inet6 | link | help ]
- Specify protocol family. 'inet' is IPv4, 'inet6' is IPv6,
'link' means that no networking protocol is involved and 'help' prints
- Use IPv4. Shortcut for -family inet.
- Use IPv6. Shortcut for -family inet6.
- Use a special family identifier meaning that no networking
protocol is involved. Shortcut for -family link.
- # rtmon file /var/log/rtmon.log
- Log to file /var/log/rtmon.log, then run:
- # ip monitor file /var/log/rtmon.log
- to display logged output from file.
was written by Alexey Kuznetsov <firstname.lastname@example.org>.
This manual page was written by Michael Prokop <email@example.com>, for the
Debian project (but may be used by others).