From: Todd Benson <caduceass@...>
Date: 2008-04-03T00:11:45+09:00
Subject: Re: Monitoring bandwidth

On Wed, Apr 2, 2008 at 5:25 AM, Mark <markonlinux@internode.on.net> wrote:
> Hi all,
>
>  Is there some code somewhere (library/script) that I can look at
>  that will help with the following:
>
>  I would like to monitor *all* traffic along the lines of
>  http://www.bwmonitor.com/ on whatever network(s) is/are active at the
>  time. Wireless and/or Ethernet.
>
>  Is there a way to monitor traffic in general moving across say wlan0
>  rather than specific protocols/ports (HTTP, FTP, etc)?
>
>  A Ruby solution would be good but Java/Python/Perl/ would be OK as well.
>
>  (The pipe dream was that I was going to try to write something like this
>  in all the languages above as a way to evaluate each of them).
>
>  (The even bigger pipe dream was that I could expand this to include a
>  GUI and make it into an open source project eventually. Pretty much
>  like 'Bandwidth Monitor' shown in the link above.)
>
>
>  thanks,
>
>
>  --
>  Mark

Keep in mind, too, that you need the port on the switch/router/gateway
that you are on to be promiscuous.

Todd