局域网和无线局域网的差异及安全研究

根据不同的业务需求,企业需要改变网络拓扑结构,但是进一步分析会发现,网络存在的形态从本质上没有发生多大的变化,改变的只是一种实现,一种组织方式的变化。传统的局域网,更多的是从物理环境上提供的一种安全防护,切断了网络可能存在的入口,对安全的防护手段和意识都比较薄弱。无线局域网（WLAN）的出现,将原有的封闭物理环境打破,而且面对的用户更具有不可控性、未知性,所以隐含的安全风险就更大,也更容易受到攻击,文中根据对广西移动WLAN安全研究的情况,从这两种网络的组网差异中分析WLAN存在的安全问题。

Difference of between LAN and WLAN and Network Security

The network topology should be changed according to various business needs.However,the in-depth analysis indicates that the basic network form would remain unchanged while the changes take place on centain implementation or organization.For the traditional LAN,most security protections are done physically,such as cutting off the possible access of the external network,these security protection measures and awareness are relatively weak.The emergence of WLAN breaks the physical enclosure of a LAN,and the user would face a more controllable,unpredictable environment and a more serious security,and thus is more vulnerable to various attacks.Based on the study of Guangxi Mobile WLAN security,WLAN security problems are analyzed from the organization differences of these two networks.