[GRLUG] Finding the bandwidth hog

[Dan Pilcheck]

On Tue, Feb 7, 2012 at 2:08 PM, Benjamin Flanders <flanderb at gmail.com> wrote:
> I've been tasked to find out what running on our network that is
> taking a good chunk of our internet bandwidth.  Quite simply I don't
> know where to start.  I've got all the people that stream music to
> stop, and we are still seeing a lot of traffic.  Will wireshark help
> out?  What other programs are out there?  I do have a cisco pix
> firewall that perhaps I could use, if I knew how.
>
>
> Share and Enjoy
> Ben
>


When we had this issue we put nTop between our router and the LAN.
We run the Untangle gateway with nTop on the same machine as a
transparent bridge between the switches and router.
This gives us a great view of near real time activities with nTop, and
cumulative reports, firewall, QoS, and a decent enough of a
web-filter.

It's been a great open-source solution over the last couple of years.

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