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Is your ISP messing with your Internet traffic?

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There’s been some reports on ISPs slowing down your Internet connection if you use BitTorrent or cutting your VoIP calls and many other nasty things.

The Electronic Frontier Foundation (EFF) has published a free software tool to check your connection for ISP’s bad behavior. It will spot IP packets which are forged or modified between clients, inform you, and give you copies of the modified packets.

Unfortunately for the non geeky users, there is no installer packages to easily install it on any Linux distribution, nor there is any GUI. Its a command line tool that you have to compile yourself. The project is hosted on sourceforge.net for you to grab if you’d like to make a package for it.

But anyway, its a great thing to have, if your ISP is messing with your traffic, you should know about it (and change ISP). I’ll be giving it a try soon, because I’m getting suspicious about this cable company in Monterrey city.

To run the tests, I recommend you to first use the wiki page. There’s a little guide to test different protocols.

About the author

Gabriel Saldaña Gabriel Saldaña is a web developer, photographer and free software advocate. Connect with him on and Twitter

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2 thoughts on “Is your ISP messing with your Internet traffic?

  1. Creo que el link que referencia a la wiki no funciona bien. Al parecer tiene un http// de sobra.

    Un saludo man.

  2. Gracias man, link corregido

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