Disabling Wireless Networks?

An Ominous Coward asks: "The University of Florida student chapter of ACM hosts a yearly programming competition for students throughout the state of Florida. It is based on the ACM International Collegiate Programming Contest, and for the past ten years has been very successful, currently drawing a crowd in the hundreds. However, this year was the first we had a problem with wireless networks. We doubt that cheating was the intention, as no one had SSID broadcasting turned off (as far as we know). Wireless networking gear is quite inexpensive now. And while we don't believe it affected the contest this year, we would like to take precautions for future contests. Is there any way to disable all wireless networking in an area about the size of a large lecture hall?"

Comments

AirJack

[.@.]

Simple. You simply forge the MAC of the access point (or just use the broadcast MAC), and spew dissociate/deauthenticate frames. As long as you're transmitting, nobody in range of the transmission can associate with an access point.

This was the basis for the AirJack tool.

DoS attacks for 802.11 networks

[samgrover]

There are several 802.11 denial of service attacks explained in this paper

Re:Disable Wireless Network

[kps]

Microwave ovens generally operate at 2.450 GHz, which only intersects 802.11 channels 7 through 10.

And the humans won't explode if you poke a few holes in them with a fork.