| With the fast development of the Internet, the number of Internet users keeps incr -easing. People get information resource and improve communication via Internet. Th -e places are no longer restricted to the fixed position while people desperately want t -o gets rid of cable constraints. Wireless LAN, as the powerful extension of the cable connection, is becoming more and more popular. This article mainly focuses on the tec -hnical architecture and implement method of Wireless Lan which bare mostly used in the busine -ss.With the maturity of the 802.11 standard, wireless network technology is already safe and fast enough to provide reliable mobile enterprise information services.The first part of the article relates to the research, analysis and comparison of 80 2.11g, 802.11n Wireless LAN. With the advantages such as high mobility, fast signal spread, low cost, easy expansion, simple management, and flexible configuration, to setup Wirelss network which enhance the enterprise information network service.Secondly, the article focuses on the network security control and encryption tech -nology selection. There are three main targets of the network informaiton security: in -tegrality, confidentiality and usability which mean access control and data encryption in the current network. It mentions the deep research on the popular security technolo -gy: WEP, WPA and WPA2 among with the article focuses on the advantage of WPA -2 which is a new generation Wireless Network Security ProtocolFinally, based on the actual example, the article states how to design, enhance or the enterprise wireless network is based on the analysis, comparison, evaluation of the existing technologies and the developing direction of the wireless network, plus the differenct. Requierment and habits from the end uses. |