[svlug] bandwidth for SOHO with ~25 users?

[Andrew Fife]

Joachim Rosenfeld wrote:

> Basic problem: our network is slow...
> 
> We have 2 T1s out to the public Internet and a point to point T1 going 
> straight to our colo.
> 
> The T1 going to the colo is almost never utilized, the 2 T1s for the 
> office is almost always saturated during the day.
 
Luke S Crawford replied: 

>Your users are doing more than 'just surfing' if they are using 3Mbps
most of the time.

I apologize for the self promotion here, but Untangle might be a good tool
to help diagnose whether or not you have problem users that are
downloading crap.  Untangle is an open source (GPLv2) network gateway that
runs a bunch of different apps.  There is a web filter app that can block
or monitor web traffic by url, content category (porn, gambling, myspace,
etc.), mime type or file extension.  There is also a protocol control app
that can block or monitor network traffic by the actual protocol and has
signatures for IM, peer-2-peer, games and more.  If you setup Untangle,
turn on these two apps and set them to monitor but not block traffic, you
can figure out which systems are sucking all the bandwidth and then decide
whether or not you have a problem with users downloading crap or just need
to buy more bandwidth.  Either way, the reporting and log files should
help you build your case.  

Here are some screenshots of the web filter application:

http://www.untangle.com/index.php?option=com_content&task=view&id=228&Item
id=971

Here is one screenshot of the protocol application:

http://www.untangle.com/images/screenshots/protocolcontrol_maingui.png
   
--
Andrew Fife
Untangle - The Open Source Network Gateway
www.untangle.com/download

650.425.3327 desk
415.806.6028 cell 
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