The wireless networks have been widely developed. In comparison with wired networks these removes the restriction of wired communication as well as support to anywhere anytime access to internet. Wi-Fi is one of the most popular and successful wireless network architecture. In the past few years Wi-Fi have gained a lot of popularity. It is being introduced in various public utilities like hotels, restaurants, banks etc and even in public transports like trains, planes ships etc. Wireless flexibility is based on a serial standard of IEEE 802.11 and it is very popular in providing different data services.