Full Disclosure mailing list archives
RE: Cisco LEAP exploit tool...
From: "Jeff Schreiner" <techlist () kc rr com>
Date: Wed, 14 Apr 2004 22:38:14 -0500
This is true but from my experience with amateur radio an HF rig running at 14 MHz (wavelength of 20 meters) at 1.5 watts will travel to Europe. A 2 meter (144 - 150 Mhz) mobile rig with 1/2 wave omni directional antenna running at 50 watt output on a good day when the conditions are right will cover 25 to 30 miles before the signal degrades to a point that communication is not possible. The wavelength of 2.4 GHz is 128mm at 1 watt which is not going to go maybe a few hundred yards before it attenuates to nothing 1/4 mile at best not to mention all the other RF interference. Even a perfectly tuned directional antenna would not be able to pick up that miniscule of a signal from 7 miles away 1/2 mile maybe with a good preamp to amplify the incoming signal and you'd still have to dig it out of all the other RF noise. Even directional tracking devices used by zoologists will only pick up the signal from a few miles away and that's when in a helicopter in a pristine RF environment. Sorry about the extended discussion on RF broadcasts, the main point wanted to point out was detecting a 802.11 2.4 GHz transmission from 7 miles away would be almost impossible. Jeff Schreiner FCC call sign KB0WUN -----Original Message----- From: Ron DuFresne [mailto:dufresne () winternet com] Sent: Wednesday, April 14, 2004 8:40 PM To: Jeff Schreiner Cc: full-disclosure () lists netsys com Subject: RE: [Full-disclosure] Cisco LEAP exploit tool... On Wed, 14 Apr 2004, Jeff Schreiner wrote:
7 miles away is stretching it a bit far considering that all 802.11g wireless transmissions range between 2.4 - 2.4835 Ghz 802.11a/h/j range between 5.47 - 5.725 Ghz not only are the frequencies prone to
scatter...the
radio waves bounce off everything. All wireless routers are limited by
FCC
regulations to a maximum of 1 watt.
The sniffing antenea does not have to have these limitations though. diretional antenea can reachout much farther and pickuup what might be thought to be reaching only a short distance. Thanks, Ron DuFresne ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Cutting the space budget really restores my faith in humanity. It eliminates dreams, goals, and ideals and lets us get straight to the business of hate, debauchery, and self-annihilation." -- Johnny Hart ***testing, only testing, and damn good at it too!*** OK, so you're a Ph.D. Just don't touch anything. _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
Current thread:
- Re: Cisco LEAP exploit tool..., (continued)
- Re: Cisco LEAP exploit tool... Paul Schmehl (Apr 14)
- Re: Cisco LEAP exploit tool... Ron DuFresne (Apr 14)
- RE: Cisco LEAP exploit tool... Aditya, ALD [Aditya Lalit Deshmukh] (Apr 14)
- Re: Cisco LEAP exploit tool... Chris Adams (Apr 15)
- Re: Cisco LEAP exploit tool... mmo (Apr 11)
- RE: Cisco LEAP exploit tool... Jeff Schreiner (Apr 14)
- RE: Cisco LEAP exploit tool... Dave Horsfall (Apr 14)
- RE: Cisco LEAP exploit tool... Ron DuFresne (Apr 14)
- RE: Cisco LEAP exploit tool... Jeff Schreiner (Apr 14)
- RE: Cisco LEAP exploit tool... Frank Knobbe (Apr 14)
- RE: Cisco LEAP exploit tool... Byron Copeland (Apr 14)
- Re: Cisco LEAP exploit tool... Valdis . Kletnieks (Apr 15)
- RE: Cisco LEAP exploit tool... Dave Horsfall (Apr 15)
- RE: Cisco LEAP exploit tool... Jeff Schreiner (Apr 15)
- RE: [inbox] RE: Cisco LEAP exploit tool... Curt Purdy (Apr 16)
- Office XP Update: March 23, 2004 insecure (Apr 16)
- Re: Office XP Update: March 23, 2004 Frank Knobbe (Apr 16)