Abstract: The Wi-Fi network is increasingly becoming a great technology, and it has excelled itself over the decade. Enabling users to access to the Internet and local networks of corporate or personal without cablesíconstraints. The current rate achieved through Wi-Fi network make it possible to transfer multimedia streams, but due to the wireless link itself, a strong security constraint also was imposed. The solutions used in wire networks are not adequate and efficient for WLANs. Thus, there is a great interest for me to find and implement the solutions specific to WLAN, even if sometimes they are inspired by an existing solution. The purpose of this article is to choose and deploy the most efficient solution on a test network through studying and analyzing the various authentication solutions on WLANs.

Keywords: Wireless Security, 802.1X, Radius, NPS, Attacks