Security Basics mailing list archives
Re: Wireless range limiting
From: RB <aoz.syn () gmail com>
Date: Wed, 16 Apr 2008 10:40:19 -0600
where you want the wireless signal to reach and it would reject clients outside this range based on the signal.
Unless your radio environment were perfectly symmetric (same client radios, same client construction, held in same orientation), it would be difficult to do reliably. Even then, all it would take is a high-gain antenna and an overpowered radio, and who's to say that client at -79dBm really isn't on-campus? Signal strength can be used to perform rough triangulation, which I've seen some products use to do AP exclusion and very rough client tracking, but definitely not signal strength alone. Even that can be defeated with a narrow-beam (3-5 degree) antenna. The 802.11 'security' arena is chock-full of snake oil, especially since there aren't many competent clients with good radio security people.
Current thread:
- Wireless range limiting Charles Hardin (Apr 16)
- RE: Wireless range limiting Nathan Sherlock (Apr 16)
- Re: Wireless range limiting Joshua Wright (Apr 16)
- RE: Wireless range limiting Nico Darrow (Apr 16)
- Re: Wireless range limiting RB (Apr 17)
- RE: Wireless range limiting Nico Darrow (Apr 16)
- Re: Wireless range limiting RB (Apr 16)
- Re: Wireless range limiting Kurt Buff (Apr 16)
- Re: Wireless range limiting Jeremy Bennett (Apr 16)
- RE: Wireless range limiting Oguz Tekeli (Apr 17)
- RE: Wireless range limiting Patterson, Michael (Apr 16)
- RE: Wireless range limiting Eggleston, Mark (Apr 16)