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How to Defend Against Rogue Access Points

By Bob Brewin
July 15, 2002 12:00 PM ET

Computerworld - Policy

  • Establish a no-exceptions policy against the use of wireless LANs without approval of the IT department.

  • Set up an amnesty program that will allow employees to disclose their self-installed APs to the IT department within a one-month period.

  • Encourage use of properly installed, configured and secured wireless LANs - if the business case justifies their use.

  • Use sniffing tools to physically survey all facilities for wireless LAN signals, and then zero in on unauthorized devices.

  • Don't ignore low-tech, small or obscure operations, such as truck terminals, loading docks, branch offices, factories and the maintenance department. It takes only one rogue AP to open up an enterprise network.

  • Continue to issue reminders of the no-exceptions policy.

  • Sniff premises periodically.

  • Consider centrally managed systems for detecting rogue APs within large organizations.

Read more about Security in Computerworld's Security Topic Center.

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