Blocking Rogue SSIDs

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  • Updated 3 years ago
Is it possible to block SSIDs being broadcast in our area? A local ISP is offering an open SSID that students are using to bypass our filters.
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Technology FCDS

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Posted 4 years ago

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Jean-Pierre Fourrier

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Personaly, i broadcast an ssid with the same name, if my remembers are good, if a ZD detect a rogue ssid with the same name, it try to "kill" it
But I don't know if it's legal.
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Primož Marinšek, AlphaDog

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Well, a McGyver way of doing it might be to get an RF jammer and a very highly directional antenna and piont it twords ISPs AP. One for each IP you want to kill. It will keep triggering their it's CCA and effectively disable it. Maybe students clients will not try to associate to it any more or they'll probe for it like crazy and you'll have a different kind of problem.

The other thing that you can do is get some equipment you can set-up to keep disassociating clients from ISPs SSID. IT can be done, just not cheap and not usefull.

Both of the solutions aren't great. Some vendors like AirMagnet or AirTight have equipment that you might use for this, however I doubt it can do waht you want.

What kind of filter do you have set that it can be bypassed by them?
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Heath Barnhart

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You realize jamming a signal is an FCC violation?
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Primož Marinšek, AlphaDog

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No, but anyway I'm not a lawyer
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John D, AlphaDog

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Yeah if you are in the US, be mindful of the recent FCC guidance regarding the Mariott case. The underlying statement seems to be that the wifi spectrum doesn't belong to you even on your property, so aggressively using a form of WIPS is probably not legal.
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Munish Dhiman, Employee

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Jamming a signal is not a good idea , it could also block more than just wifi signal ; these devices could disrupt important communications services that operate on adjacent frequencies, or worse, they could disrupt all communications within a broad frequency range .

According to Federal law ,it prohibits the operation, marketing, or sale of any type of jamming equipment, including devices that interfere with cellular and Personal Communication Services (PCS), police radar, Global Positioning Systems (GPS), and wireless networking services (Wi-Fi).

http://www.fcc.gov/encyclopedia/jamme... more info .