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1、第5章IP路由基础本章主要讲述IP路由的工作过程、路由表的作用以及路由分类和路由环路的产生与预防技术要求掌握内容：路由表内容的查看及各条目的含义；设置静态路由；距离向量和链路状态路由协议的工作原理与特点。章节内容5.1IP路由基础5.2静态路由与动态路由5.3路由环路预防技术5.4实验5.5小结5.1IP路由什么是IP路由IP路由表路由器需要知道以下信息才能进行路由:目标地址如何获得路由信息可能的路由最好的路由如何保存与验证路由信息什么是IP路由192.168..0.1172.16.0.1R1R2R3R4网络协议目标网络ConnectedLe
2、arned10.120.2.0172.16.1.0出口E0S0路由器必须学习没有直接相连的网络的信息192.168.0.1172.16.0.1R1什么是IP路由R2R3R4IP路由表ABC10.0.1.010.0.2.010.0.3.010.0.4.0E0S0S0E0E0E1RoutingTable10.0.1.010.0.2.010.0.3.0RoutingTable10.02..010.0.3.010.0.4.010.0.1.00011S0S1E0S0RoutingTable10.03..0E0010.04..0E1010.02..0E0
3、E012E0S0S0120010.0.1.010.0.4.0S0IP路由表的内容RouterB#showiprouteCodes:C-connected,S-static,I-IGRP,R-RIP,M-mobile,B-BGPD-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterareaN1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2E1-OSPFexternaltype1,E2-OSPFexternaltype2,E-EGPi-IS-IS,L1-IS-ISl
4、evel-1,L2-IS-ISlevel-2,*-candidatedefaultU-per-userstaticroute,o-ODR,P-periodicdownloadedstaticrouteT-trafficengineeredrouteGatewayoflastresortisnotset10.0.0.0/24issubnetted,4subnetsC10.0.2.0isdirectlyconnected,Serial0C10.0.3.0isdirectlyconnected,Ethernet0R10.0.1.0[120/1]vi
5、a10.0.2.1,Serial0R10.0.4.0[120/1]via10.0.3.2,Ethernet0主机路由表内容C:>routeprintIPv4RouteTable===============================================================InterfaceList0x1...........................MSTCPLoopbackinterface0x10003...000aeba20288......TP-LINK11GWirelessAdapter0x10
6、004...00e01855557d......HPNetServer10/100TXPCILANAdapter==============================================================================================================================ActiveRoutes:NetworkDestinationNetmaskGatewayInterfaceMetric0.0.0.00.0.0.0100.100.109.254100
7、.100.109.25230100.100.109.0255.255.255.0100.100.109.252100.100.109.25230100.100.109.252255.255.255.255127.0.0.1127.0.0.130100.255.255.255255.255.255.255100.100.109.252100.100.109.25230127.0.0.0255.0.0.0127.0.0.1127.0.0.11224.0.0.0240.0.0.0100.100.109.252100.100.109.25230255
8、.255.255.255255.255.255.255100.100.109.252100.100.109.2521DefaultGateway:100.100.1
