Wireless networks are now becoming widely deployed, and manufacturers have accelerated the development of low-cost, interoperable products. Today.s 802.11 wireless technology promises to open up exciting new possibilities. However, as WLANs become more numerous and widespread, more robust security solutions are required. In particular, recent demonstrations of the vulnerability of the RC4 cipher, which forms the basis for Wired Equivalent Privacy (WEP) encryption, make it clear that WEP protection alone is inadequate. A robust and scalable security solution is available by using Virtual Private Network (VPN) technologies. This paper examines current wireless security methods and also looks at the use of VPN to augment wireless security. At the end of the paper are sources for further information.
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