From: Joe Freeman (joe.freeman@CenturyTel.com)
Date: Tue Dec 21 2004 - 12:02:22 GMT-3
There are several ways to get this information-
1. Implement NBAR protocol discovery to determine the offending protocol
first. Then use a packet capture/analysis tool set to capture only this
traffic.
2. Implement Netflow export and a collection device. Analyze this data
to find the offending user (by IP address). F/OSS tools include:
http://www.caida.org/tools/measurement/cflowd/
http://sourceforge.net/projects/ntop/
and of course, the Cisco Open Source Initiative,
http://cosi-nms.sourceforge.net/
This is not an all inclusive list. There are other tools, but these will
do what you need.
Joe
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
David Fuller
Sent: Tuesday, December 21, 2004 6:22 AM
To: ccielab@groupstudy.com
Subject: OT: PC Bandwidth Usage Check
Hi guys
We've a bit of headache. We've got a office LAN in a business centre
where the
Internet access bandwidth is charged per usage. We have slots where e.g.
for
up to 4 GB upload/download the cost per month is X amount. If we exceed
this
limit then each extra GB etc is charged at a higher penalty rate (more
expensive then the agreed/contracted rate of 4 GB per month at cost of
X).
We've modified the contract to have 10GB per month contract at a higher
cost.
We are still getting the access usage of the Internet bandwidth. We want
to
see which users are causing this extra Internet traffic. There is no
business
case for downloads/uploads for more than 10 GB per month. So we must
trace the
user(s) and make sure that the stop downloading whatever is casuseing
this
extra cost. There are only 6 people in this office. Can anyone recommend
any
tools? Prefereablly not too costly (free would be best :D).
Thanks a lot
David
This archive was generated by hypermail 2.1.4 : Mon Jan 03 2005 - 10:31:28 GMT-3