The Safe Technique Is In The Wireless Connect Go Into Of Application Study

Along with the WLAN gradual universality, the safe problem of wireless network is also become rigorous day by day.Because the man's natural character air of the wireless correspondence the data of the dissemination is naturally insecure of, much less WLAN standard oneself still exist safety concealed suffer from.The WLAN safety will be limited by the complete sex service of confidential sex service, data of provide the data and provide an identity to identify a frame and connect into control frame, completion deliver of the authorization, information of discriminate of customer safety etc. safe business.For the sake of exaltation WLAN safety, IEEE 802.11 groups successively drew up many standard, in the meantime the business enterprise organize with related network safety also put forward and developped many safety agreement.However because of new of the loophole appear, these agreement or calculate ways all or many or little of existence so with that of problem, cause in fact have no which concrete agreement or the standard resolve a 802.11 WLAN of safe problem, this also makes in the meantime wireless bureau area the net faces a larger challenge in the application.Safe risk and safe need faced according to the WLAN, analyze the WLAN mainly negotiates 802.11 standard principles, and discussed current safe measure of the 802.11 WLAN and technique in detail(Service Set Identifier(SSID);Media Access Control(MAC) ;Wired Equivalent Privacy(WEP);The control mechanism of the 802.1 X port interview ...)and the blemish of its existence.In this text at to under the foundation of existing WLAN safe technique research passed to imitate to actually put forward the sensor is according to the distribute type wireless network intrusion detection system model frame, carry on a protection to WLAN with the AP mode.This kind of frame spreads a feeling machine according to the Linux, the distribute type detection system of the network intrusion distributes many examination probes at most a net segment, can probe into the excrescent phenomenon in the WLAN, or identify interview node of haven't yet the authorization or insecurity, the information which finally passes to send back to each probe carry on comprehensive analysis to examine to invade.Inquiried into Remote Authentication Dial In User Service(RADIUS) the application in the 802.1 X attestation frame in WLAN, did analysis and design in the WLAN realization to the RADIUS agreement.Still analyzed a VPN technique further in the applied system frame in the WLAN and the existence problem, the research put together existing VPN safe technique and the safe technique knot of the IEEE802.11b.Pass the study, research which applies in the WLAN to each safe technique, project and imitate, hope a network safe at the to build up WLAN of method and technique up have innovation.