Study Of WLAN Network Security Risk And Protective Measures For Jilin Mobile

With the intense competition of telecommunication market, when expanding the voice service, it need to pay more attention to the development of the data service and to accelerate business transformation, in the largest development process of China mobile communications, China Mobile Communications has always played a leading role, and in the international field of mobile communication plays an important role. With the development of mobile Internet change rapidly, China Mobile has introduced the "4+1" network coordinated development strategy, namely GSM, TD-SCDMA, WLAN, TD-LTE + transmission network coordinated development, but the WLAN network technology as the main development of mobile Internet, is respected greatly.Based on the 802.11b / g WLAN access technology can provide the bandwidth of 54Mbps, and the based on 802.11n can rate the WLAN transmission from current 54Mbps to 300Mbps and even 600Mbps, and support local low mobility, can satisfy the require of using notebook computers or PDA to visit high speed Internet for users. At the same time the WLAN can provide broadband multimedia services for local mobile users, particularly after Apple's Iphone, Ipad and other advanced electronic devices appearing, WLAN business has a broad development space.As the combined of the wireless communication technology and IP network technology, based on network equipment, including authentication billing platform ( RADIUS ), authentication interface push server ( PORTAL ), CMNET, AC, AP, bridge, two layer POE access switch, three layer switch and so on in WLAN network. The topology structure of WLAN network is more complex to the relative cable subscribers, at the same time, for the business in WLAN network relates to the roaming user, user authentication, charging and accounting, so the business is more diversified and the network has larger security risk.Jilin Mobile has construction and operation of carrier-class for WLAN network, but during the WLAN network operations occurred the theft of user account password, using of equipment to send spam to bypass authentication and accounting for free Internet access and other security events, these events have serious implications the user perception of WLAN networks, and even cause the congestion of network bandwidth, the paralysis of equipment performance. This paper studies and evaluates the security risks based on the existing WLAN network of Jilin Mobile, from the WLAN user accounts, passwords stolen; the use of non-certified device address (no charge) to access the Internet, the use of AC's DNS vulnerability without authentication to skip Portal network access to the Internet caused by abuse; WLAN network vulnerable to attack and cause the device to be used with the other four non-security risks, this paper finds that the WLAN network security problems and identifies the reasons of impact network security. Based on the full collection and analysis of business security risks and according to the Jilin Mobile faced security risks at the present stage, this paper has investigated security risks that may exist in WLAN network and studied switch, router configuration command in the process of WLAN network security applications to ensure that WLAN network security.Through the application of WLAN security preventive measures, improve the quality of service and service quality, reduce management operating costs, reduce customer complaints, with great economic value and practical significance.