Re: [MLUG - DISCUSSION] Crack'n WEP

[Johann Luebbering <EMAIL:PROTECTED>]

As something of a side note to this, I thought I should point out that 
if you're on the 4th floor and using a standard omni antenna on your AP, 
the ground level outside your building probably isn't within the 
vertical beamwidth of your antenna (particularly if you're using a 
fairly high-gain omni).

However, it's entirely possible that your *neighbor's* parking lot *is* 
within the beam of your antenna and would give you (or anyone attempting 
to hack your network) a much better signal.

I've seen high gain omni antennas that only have a 4-6 degree vertical 
beamwidth.  That takes the main lobe of your signal quite a good 
distance to make it to ground level from your 4th floor location.

It's quite possible, therefore, that your parking lot is just a "dead 
spot" and that your network is accessible from a much greater distance 
than you would expect.

Mike Miller wrote:
> On Tue, 5 Apr 2005, Rick Buford wrote:
> 
>> The wireless signal flat out violates rule #1 in security in that 
>> there is no physical limitation in accessing it.
> 
> 
> I don't want to start a fight about it - but to clarify:  Wireless 
> signals are physically limited in that they don't travel all that far.  
> For us on the 4th floor of a building, I'm not sure they can see our 
> network out side the building at ground level.  This does limit somewhat 
> who can access your network.
> 
> I'm not trying to say that this makes it secure.  I don't know squat!
> 
> Mike
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