WLAN shielding

Sean Donelan sean at donelan.com
Thu Nov 27 02:51:14 UTC 2003

On Wed, 26 Nov 2003, David Lesher wrote:
> Speaking on Deep Background, the Press Secretary whispered:
> > My company is investigating the use of wireless in a couple of our
> > conference rooms.  Aside from limiting the scope of reception with various
> > directional antennae, does anyone have any suggestions or pointers for
> > other ways to limit the propagation of signals (i.e. special shielding
> > paint, panels or other wall coatings)?
> As I told Andy, you need a "RayProof" or similar brand shielded
> conference room. This is Faraday Cage, with a tight-fighting door,
> etc.

Uhm, dumb question.  If it is that important, why are you using
wireless at all?  Why not install a cheap switch/hub in the middle of the
conference table and let people plug a patch cord from the hub to their

Stupid pen-test tricks, instead of using an expensive WiFi scanner and
cracking WEP; often you can collect better intelligence with a radio
turned to the frequency used by wireless lapel mics used by executives
during briefings.

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