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List:       firewall-wizards
Subject:    Re: [fw-wiz] WLAN DMZ Ideas
From:       "Kevin Sheldrake" <kev () electriccat ! co ! uk>
Date:       2004-10-13 8:10:43
Message-ID: opsfsub5lkyl48zk () wintony
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Have you considered the availability requirements of your WLAN?  You don't  
need to be within eavesdropping distance to suitably disrupt one.  The  
only other immediate thought I had was that you might like to plot a map  
of WLAN reach at different times of day within different weather  
conditions.  This would demonstrate that your physical security measures  
appropriately mitigate your WLAN risks.

Kev

> Just wanted to thank everyone who answered with ideas. The main theme,  
> based on the large campus-like environment, was VLANs. The proposal I  
> suggested then was to implement 3DES encryption and MAC filtering on the  
> WLAN (which goes without saying, of course). The AP's are then placed on  
> a VLAN which is connected to the default VLAN through a Cisco Router  
> with a very restrictive access list. This is made simpler based on the  
> proprietary ports used to talk with the Management station, no standard  
> http or netbios stuff needs to cross VLANs, which means that all the  
> standard exploitable ports will be closed. In addition, physical  
> security is excellent. The "campus" is highly secured and restricted  
> with gates/security guards, the LAN equipment is further secured in  
> restricted access buildings, rooms and cabinets. In addition we are a  
> "secured" area within a larger "secured" campus, which really helps  
> limit the eavesdropping on the WAPs. Anything else to consider? Thanks!
> Mark
>
> Mark F.
> MCP, CCNA
> "You can spend your life any way you want... But you can only spend it  
> once."
>
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>
>



-- 
Kevin Sheldrake MEng MIEE CEng CISSP
Electric Cat (Bournemouth) Ltd

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