FreeBSD tool for network bandwidthmeasure ?

Jez Hancock jez.hancock at
Tue Aug 5 03:30:11 PDT 2003

On Mon, Aug 04, 2003 at 10:34:20PM -0700, dt wrote:
> Hello,
> Is there any standard (or non) FreeBSD tool that is used to measure a
> current network throughput/bandwidth? And also, what are the
> requirements to do so, and do I need to be root to run, or do I need to
> load a special kernel module?
trafshow displays network throughput in an ncurses frontend in a
console.  I don't think there are any special requirements for trafshow
- perhaps you need to have the bpf option enabled in the kernel (which
  it is by default?). Install it and try it it's in the ports under
ipfw can count network traffic using different rules, so for example you
could count all traffic bound for a certain address or interface using
something like:

	ipfw add count all from any to 80

ipfw can also (very usefully) count traffic on a per uid basis.

ipfw does have to be enabled in the kernel though.  See the handbook for
more info on this.


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