It's been years since the weaknesses of WEP (Wired Equivalent Privacy) came to the fore, but despite the best efforts of vendors and industry groups, the notion that it's next to impossible to secure a WLAN is still alive and kicking.

The truth is, battening down your wireless LAN has gotten easier. Still, despite the time and money we'll spend making sure only authenticated users gain access to wireless networks and only encrypted data goes airborne, WLAN security isn't complete. Once you build a secure WLAN, you must ensure it stays secure. Whether you're after rogue-AP (access point) alerts or detailed information on serious threats like DoS (denial-of-service) attacks, understanding your WLAN environment is key to ensuring that your wireless network provides connectivity without compromising your company's data security.

By Jesse Lindeman and Frank Bulk at Network Computing.

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