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how to check what is making traffic over a T1, or DSL line (per IP?)

Posted on 2006-06-14
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Last Modified: 2010-03-19
Hi, I have a client that shares a T1 line with another co in the same building, they each use a separate IP address.  My client has like 3 computers, and one remote access person using Terminal Server, super light needs, the other company hosts stuff on the internet, but they say that it shouldn't hog the T1 line. My clients get extremely bogged down from time to time and are pointing the finger at me.

Question: is there a web site, or utility to tell me what IP is using more traffic, or how much traffic is being used by each IP address?  I really don't want to setup another firewall to monitor, and I can't check the log files on the other company's router.

Thanks again for everything.


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Question by:SlickTech
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zephyr_hex (Megan) earned 500 total points
ID: 16904946
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by:prashsax
ID: 16905044
This software will tell you who is using how much per IP.

http://lastbit.com/trafmeter/

But for it to work, it should see all the data.


If this is how your network looks like.
T1------------------------Router----------------Firewall---------------Network1
                                                                  |--------------------Network 2

You need to do this:
T1------------------------Router---------Hub----------Firewall---------------------Network1
                                                       |                    |---------------------------Network 2
                                                   Pc with this software

In this mode, it will log all public IP and the bandwidth it is using.
YOu can group their respective Public IPs and can see who is using how much.



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Expert Comment

by:Keith Alabaster
ID: 16905277
PRTG will also assist you in graphing the bandwidth. The free version has limited nodes but will help for the work you are looking at.
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Expert Comment

by:prashsax
ID: 16905310
PRTG will only tell you about the bandwidth usage on routers interface only.

It cannot tell you individual IP addresses who are using it.
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Author Comment

by:SlickTech
ID: 16905751
yaw, I don't think the other company will let me do this.
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Expert Comment

by:Sentinel8o
ID: 16905901
well u could
T1--------------Router--------------Firewall---------------------Network1
                                                    |------------hub---------------Network 2(your network)
                                                                      |
                                                            PC with software

and monitor how much your network uses
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Expert Comment

by:prashsax
ID: 16906035
Yes, This would tell you how much bandwidth is being used in Network2.

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