Forewarned is forearmed

When preparing to deploy a new WLAN or undertake a major upgrade, security should be baked into your design. The survey and modeling tools used to plan your WLAN can play a significant role in creating a secure solution.

Portable discovery tools (stumblers) and site survey programs from vendors like AirMagnet and Berkeley Varitronics measure RF behavior at the target site and map results on floorplans. During this process, you will not only position your own APs, but find existing neighbor APs and sources of RF interference. Such programs may export authorized/unauthorized device lists and floorplans for import by WLAN Analyzers and Wireless IPS systems.

Planning programs from vendors like Ekahau and AirTight Networks often use survey results to predict the capacity and performance of a proposed WLAN design. This is also an opportunity to reduce risky RF leakage into public areas and adjacent offices. Look for planners that not only display coverage heatmaps, but suggest ways to avoid unnecessary exposure by relocating APs, adding antennas, or adjusting transmit power.

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