无线网络的安全问题越来越受到人们的关注,用户在布置WLAN 时如何使用安全技术手段来保护其中传输的数据——特别是敏感的、重要的数据的安全,是至关重要的问题,必须确保数据不外泄和数据的完整性。首先分析了无线局域网面临的安全问题,然后对无线局域网的安全技术及缺陷进行了讨论,提出了多元化的无线局域网安全解决方案。关键字:无线局域网; 安全性; 访问控制; 数据加密Abstract: The safety of LAN has been paid more and more attention to.The users must ensure the data is intact and not revealed when arranging WLAN. How to protect the transferreddata ,especially some sensitive and important one,is a curcial issue. At first the paper analyses the problems of wireless LAN security,and then discusses the security techniques and limitations of wireless LAN, It also puts forward some solutions to wireless LAN security.Keywords: Wireless Local Area Network; security; access control; data encryption