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Date:      Mon, 10 Feb 1997 09:19:48 -0800 (PST)
From:      Dan Busarow <dan@dpcsys.com>
To:        Robert Chalmers <robert@nanguo.chalmers.com.au>
Cc:        bsd <freebsd-questions@freebsd.org>
Subject:   Re: measuring bytes transmitted? how?
Message-ID:  <Pine.UW2.3.95.970210091053.15605D-100000@cedb>
In-Reply-To: <199702101101.VAA03531@nanguo.chalmers.com.au>

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On Mon, 10 Feb 1997, Robert Chalmers wrote:
> I've seen it somewhere, but can't find it.
> How does one measure the traffic received by the site.?

Enable bpf in your kernel config file

psuedo-device bpfilter 4

and then run config and make a new kernel.

Run tcpdump on the interface(s) you are interested in.  Experiment
with the options to tcpdump, I use

	tcpdump -p -i ed1 -t -n -q gateway gateway.fqdn > logfile

to track traffic across gateway interfaces.  With these options
the log file is pretty easy to parse.  I'm interested in total
traffic but you can break out TX vs RX pretty easily.

Dan
-- 
 Dan Busarow                                                  714 443 4172
 DPC Systems / Beach.Net                                    dan@dpcsys.com
 Dana Point, California  83 09 EF 59 E0 11 89 B4   8D 09 DB FD E1 DD 0C 82




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