DSR协议下数据包攻击及防御机制

移动Ad—hoc网络又称移动自组网、多跳网络，是一种特殊的、在不借助中心管理的情况下，在有限的范围内实现多个移动终端临时互联的网络。由于Adhoc网络自身的特殊性，其路由协议的设计与传统固定网络有很大不同，而且种类繁多，DSR协议便是其中一种。DSR协议也被称做动态源路由协议，它作为Ad—hoc网络的路由协议之一，最大特点是在发送的每个数据包中放入一个完整的、按序排列的路由信息，并且在传递数据包的过程中依赖着这些路由信息去完成工作。文章主要介绍了Ad—hoc网络中的DSR协议的工作方式，针对其安全性提出一种新的攻击模型——数据包攻击，并通过模拟实验，给出了数据包攻击的检测方法和防御策略，能够成功地发现并有效地阻碍数据包攻击。

Packet Attack and Defense in Mobile Ad Hoc Network

A mobile ad-hoc network is a self-configuring infrastructureless network of mobile devices connected by wireless.DSR protocol,also known as dynamic source routing protocol,it is one of the Ad-hoc network routing protocols.The largest features of the DSR protocol is the packets will carry a complete and orderly routing information,and rely on routing information to complete the work.Although this approach has brought many advantages,such as more efficient use of bandwidth resources and save a lot of the cost of maintaining routing information,etc.It still have a lot of security risks.The paper introduces the work of the DSR protocol,and presents a new attack model for their safetypacket attack.Through simulation experiments,given a packet attack detection methods and defense strategies,able to successfully and effectively impede the packet attacks.