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ID:30050504
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页数:23页
时间:2018-12-26
《论文:arp欺骗及icmp攻击技术分析》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、菏泽学院HezeUniversity专科生毕业设计(论文)题 目ARP欺骗及ICMP攻击技术分析姓 名郑晓晓学号2007130095系别计算机与信息工程系专 业计算机应用技术指导教师苏军职称2010年5月30日菏泽学院教务处制19摘要ARP欺骗及ICMP攻击是以太网中常用的攻击手段,两者都可对目的网络进行DOS(拒绝服务)带宽攻击。通过分析防范应对措施方面的异同得出实施ARP欺骗更容易达到带宽攻击的结论。拒绝服务(DenialofService,Dos)攻击,指利用TCP/IP协议的缺陷攻击目标主机或网络,使之无法提供正常的服务或资源访问,其根本目的是使受害主机或网络无法
2、及时接收并处理外界请求,或无法及回应外界请求。DOS攻击主要分为网络的带宽攻击和连通性攻击。带宽攻击指以极大的通信量冲击网络,使得网络资源都被消耗殆尽,最后导致合法的用户请求无法通过。连通性攻击指用大量的连接请求冲计算机,使得可用的操作系统资源都被消耗殆尽,最终使计算机无法处理合法用户的请求。ARP欺骗和ICMP攻击的实施方法,由于路由器、防火墙等网络设备对接收到的ICMP数据包设置了严格的安全策略,而ARP欺骗又主要应用天安全性较差的局域网中,因此ARP欺骗在带宽攻击方面实施起来比ICMP攻击更容易些。对于ICMP的攻击,选择合适的防火墙有效防止ICMP攻击,防火墙具有状态检
3、测、细致的数据完整性检查和很好的过滤规则控制功能。AbstractTheARPdeceitandtheICMPattackareintheethernetthecommonlyusedattackmethod,bothallmaycarryonDOStothegoalnetwork(torefusetoserve)thebandwidthattack.ShouldobtainthroughtheanalysisguardtothemeasureaspectsimilaritiesanddifferencesimplementstheARPdeceittobeeasiertoac
4、hievethebandwidthattacktheconclusion.Refusestoserve(DenialofService,Dos)attack,refersusestheTCP/IPagreementtheflawattackgoalmainengineorthenetwork,causesittobeunabletoprovidethenormalserviceortheresourcesvisit,itsprimarypurposeiscausestosufferinjurythemainengineorthenetworkisunabletoreceivep
5、romptlyandprocessestheoutsidetorequest,orisunableandtheresponseoutsiderequest.TheDOSattackmainlydividesintothenetworkthebandwidthattackandtheconnectiveattack.Thebandwidthattackrefersbytheenormouscommunicationloadimpactnetwork,causesthenetworkresourcesalltoconsumethedanger,finallycausestheleg
6、itimateusertorequestisunabletopass.Theconnectiveattackreferswiththemassiveconnectionrequestflushesthecomputer,causestheavailableoperatingsystemresourcesalltoconsumethedanger,finallycausesthecomputertobeunabletoprocessthevalidatedusertherequest.ARPdeceitandICMPattack19implementationmethod,bec
7、ausenetworkequipmentdockingandsoonrouter,firewallreceivestheICMPdatapackethasestablishedthestrictsecuritypolicy,buttheARPdeceitmainlyappliesinthedaysecuritybadlocalareanetwork,thereforetheARPdeceitimplementsinthebandwidthattackaspectiseasierthanthe
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