Nifmon is a curses-based tool for FreeBSD which can be used to monitor network
interfaces (also tun devices).
It displays continously updated statistics for the following quantities:
- total amount of bytes/packets transferred in/out
- bytes/packets transferred in/out during the last second/minute/hour
- a stripped down tcpdump output
You will need super-user permissions in order to use nifmon.
WWW: http://www.freebsd-support.de/misc/
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