Viewing PPPoE dialup data over network?

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metalcore

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On the network at work I think someone has stolen my ADSL account and is using it. I have bought prepaid Axxess vouchers and everymonth they get capped. Even though I make sure to try and leave lots of data over.

I phoned the ISP's and Axxess was willing to tell me that all the data usage was from the same "port" or line. This means that who ever is using my account is using it at work and not taking it home.

Our modem is setup in bridged mode at the moment and everyone connects using the PPPoE dialup connection in windows.

The company is small and we don't have dedicated IT departments so everyone takes care of his own PC and we ask eachother for help.

What I would now like to know is how can i catch this person out. Because the PC's all have passwords. My Windows password is known to the boss as is all the others, but I don't want to ask him to go and scratch on everyones workstations to check for me. It might even be him using my account anyway.

Is there a way for me to intercept the data that goes from a PC to the modem when a dial up connection is launched. I don't want to see passwords and I assume they are encrypted anyway, I just want to see the usernames.

So if I am sitting on a lan and somebody connects to the net surely I can see the data with some program that will show me that IP address XXX.XXX.XXX.XXX is connecting through PPPoE using Account name xxx@adsl
 
What you require is quite a complex setup, one which a IT department should probably handle, but since you said you don't have one, it's best to try alternative methods.

If you want to be able to see who's dialing up and what not, you'd have to setup a RADIUS server on your network, and have that server authenticate each user.

What might be better for you is having a look at WebAfrica's DSL Groups product. I'm not too clued up about it but take a look at http://www.webafrica.co.za/adsl/groups

Distributed and flexible large-scale broadband management. A single "master" account is supplied, from which multiple sub-accounts can be created and managed. Each sub-account can be monitored, have additional bandwidth added or disabled as necessary.
Click to expand...

It sounds like it's exactly what you're looking for; buying a shared bandwidth pool, allocating separate accounts to the pool, and then each user has his/her own account which you can monitor.
 
Thanks that sounds like a cool idea, but the problem is everyone has their own ISP's so I don't think they will all agree to use one from one shared account.

This still doesnt help me catch the culprit. Is there a program that can do what I am looking for. Once I find the culprit I know how I will get him to pay me back in cash.
 
metalcore said:
Thanks that sounds like a cool idea, but the problem is everyone has their own ISP's so I don't think they will all agree to use one from one shared account.

This still doesnt help me catch the culprit. Is there a program that can do what I am looking for. Once I find the culprit I know how I will get him to pay me back in cash.
Click to expand...

my bad, I read your post as if all users were sharing one account.

I think this would require an advanced network setup, perhaps with a single pc acting as a router and RADIUS server.

If someone does have your account details, why not start by changing your adsl account password? :)
 
zamrg said:
my bad, I read your post as if all users were sharing one account.

I think this would require an advanced network setup, perhaps with a single pc acting as a router and RADIUS server.

If someone does have your account details, why not start by changing your adsl account password? :)
Click to expand...

Ive done that several times. I think there is a hidden key stroke logger because when I reinstalled windows I had no problem for about 2 weeks...
 
metalcore said:
Ive done that several times. I think there is a hidden key stroke logger because when I reinstalled windows I had no problem for about 2 weeks...
Click to expand...

Hmm, what antivirus you running? are its definitions up-to-date?
Try downloading the 30day trial of Kaspersky (kaspersky.com)
update it & run a full scan.

Avast makes a decent free antivirus (avast.com)


If you have a webcam there is software you can install to act like motion-activated cctv & see who snoops on your pc when you're not there. Have a google around, I found this site offering 15day trial software (blueirissoftware.com)
 
Brandon said:
Hmm, what antivirus you running? are its definitions up-to-date?
Try downloading the 30day trial of Kaspersky (kaspersky.com)
update it & run a full scan.

Avast makes a decent free antivirus (avast.com)


If you have a webcam there is software you can install to act like motion-activated cctv & see who snoops on your pc when you're not there. Have a google around, I found this site offering 15day trial software (blueirissoftware.com)
Click to expand...

An unnoficial copy of Nod 32. hehe. I reckon I must install Linux or something else. Or I must put a lot of gay pron on my pc to frighten whoever it is off.
 
metalcore said:
An unnoficial copy of Nod 32. hehe. I reckon I must install Linux or something else. Or I must put a lot of gay pron on my pc to frighten whoever it is off.
Click to expand...

Lol, well would still recommed running a scan with kaspersky.
If you go Linux I recommend Ubuntu desktop, nice all-in-one ISO, easy to install. Give it a nice strong password.

In your bios you should also disable removable media boot devices & password protect that as well. Don't have to make it easy for people with bootable flash drives/cd/dvd's to get into your system.

;)
 
Lol, as usual on the internet the only post answering the OPs question gets ignored. :D
 
Yes but post 5 starts out by going into this massive mission of running your own radius servers and what not, then at the end it gives an answer. I guess by that point I argued to myself its not helping reading the rest, where as one could just start out with a simple but elegant solution, and then after that give your massive big bad idea.
 
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