ad hoc网络组播对于DoS攻击畦抵抗策略分析

与固定有线网络相比，无线ad hoc网络动态的拓扑结构、脆弱的无线信道、网络有限的通信带宽以及节点兼备主机和路由功能等特点，使得网络容易遭受拒绝服务（DOS）攻击。文章针对ad hoc网络的组播应用在抵御DoS攻击方面的不足，提出外部和内部两种组播DoS泛洪攻击模型，同时针对ad hoc网络组播组内的攻击提出相应的两种抵抗策略和具体实现步骤。

Analysis of DoS Attack and Defense on Multicast in Wireless Ad Hoc Networks

Compared with the fixed cable networks, wireless ad hoc networks have characteristics of dynamic topology, weak wireless channel and nodes serving as both hosts and routers. Thus the networks are particularly vulnerable to Denial of Service（DoS） attacks. Two flooding attack models, including exterior and interior attacks, are described to address the problem of defending DoS attack on multicast in wireless ad hoc networks. Finally, two defense policies and detailed steps are proposed toward the flooding attacks within the multicast groups in ad hoc networks.