-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi Charles,
Charles Hardin wrote:
| A co-worker of mine was recently telling me of a tool he had seen
| several years ago. A utility where you could upload a floor plan of
| your building and specify where your access points are located. You
| could then walk around your perimeter with a wireless client with an
| agent on it that would allow you to marcate the physical boundries of
| where you want the wireless signal to reach and it would reject
| clients outside this range based on the signal.
This is the Newbury Networks product
(http://www.newburynetworks.com/products-rf-firewall.htm). I don't know
if I trust such a system, since they do not know the transmit power of
someone inside or outside of your facility (they probably assume
something like 100 mW + 3 dBm antenna). If an attacker has a
higher-gain antenna, they can appear to be inside your facility with a
stronger signal.
I do not claim to know the full detail of the product, but that is my
skeptical 2 cents for today.
- -Josh
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (Darwin)
iQIVAwUBSAYsaDWX3FIa1TkuAQIhMQ/+Ks04mzt8VxZ47eP82Vsw2+Opd4Bk8ALi
171Ds0NgOEAD3supH2AlAmenrLtw6PPKO5FeoXEeWKP/FgbqgCu+vwTqH6oXJJvy
pZVcMp6pMd+suvphoNREpzumyOwymmx7Cx8gWikdPWOeALWE3XsGWSS4LsuMNDEJ
UbBusL0Aj938em7PDOKYLpMn6hiwh94ikQmrmA/M5C3WEr53zwscOlWWR9JobdVt
b5nhWtM6VAmXDw+BQ/QxSBlywY/PAsoprOGBmZqyYczOVv5mVSQg43ZwE0tqpyjh
NlSRbQ35CUxUSuYL2YmJ7bwHhFPEFllSVCU8QuMVwgbH2Wyr2I/cf4gNh2Uq7cUQ
iEtDuBvdXzins8CX/YXn3a2+2r2S687RCdpULsie+hFTQ3czMWEfqbJD5EJn30SJ
YS1dx40weCW7bnV1zIspPlmG+R7grxwKls6UB1oqnSWIQOOeDs/oIhYbV6WH9Ys8
KLrO5QMhmyRCyMLAutTNINehSpOnFB+ODEji0C0ISssF0cQZpyJa9QF6uJC5g82e
ZP6jX301bGiI7uGOMdEOMcbBvqcROOW+4PUlfUDJtfWEMj6EyNESpfuNT9DFVbEp
MLMOa/CCn/xg82XxhiTWgn4lJdo2qcjAxDDwYRfrdeIBV3dqydiHtNl8hROi4xkh
WlaFgu8a6jc=
=7BOH
-----END PGP SIGNATURE-----
