【摘要】 移动Ad Hoc网络是由一组带有无线通信收发装置的移动终端节点组成的一个多跳、临时、无中心的网络,其介质开放、动态拓扑、分布式协作、缺乏集中监控机制和明确的防护线等特征,造成网络极易遭受攻击。提出了分布运行并集中控制的思想,在有线局域网上搭建Ad Hoc网络仿真平台,在各个分布式终端节点运行真正的路由协议,而在中心控制端通过虚拟移动和虚拟拓扑管理控制多个分布式终端节点来仿真复杂的Ad Hoc网络拓扑;并在Linux操作系统上实现了分布式入侵检测系统,以AODV路由协议为例,在仿真平台上对入侵检测系统进行实验测试。仿真结果证明,该系统使得移动Ad Hoc网络具有优良的抗攻击性能。更多还原

【Abstract】 Wireless Ad Hoc networks composed of mobile terminal nodes with wireless communication devices are typically characterized by their multi-hop,temporary and un-center.Because they have characteristics such as opened medium,dynamical topology,distributed cooperation,being short of concentrated control and explicitly defense scheme,Ad Hoc networks are extremely easy to be attacked.The thought of distributed operation and centralization management is presented,the Ad Hoc networks emulation platform is developed on wired local area network.All the terminal nodes operate routing protocol and the control center emulates the Ad Hoc network topology by managing every distributed terminal node.On the basis of AODV routing protocol,the distributed intrusion detection system is implemented on Linux OS and it is tested on the emulation platform.Based on the emulation results,the system can take the Ad Hoc networks excellent attack resistant ability.更多还原