CCNA学习笔记六.doc

点对点的帧中继的一个基本的配置配置的步骤;A配置一个帧中继交换机,我们给R1分配的DLCI号码是102,给R2分配的DLCI号码是201,,-relay-switch(config)#frame-relayswitchinginterfaceSerial1/0noipaddressencapsulationframe-relay封装帧中继serialrestart-delay0clockrate64000设置时钟速率noframe-relayinverse-arp关闭IARP(反向地址解析协议)的自动解析frame-relaylmi-typecisco设置LMI(本地管理接口)的类型是cisco的frame-relayintf-typedce设置我这边的接口是局端S0frame-relayroute102interfaceSerial1/2201分配给S1/0的DLCI号码是102,并且把她映射到S1/2的DLCI号码是201.!!interfaceSerial1/2noipaddressencapsulationframe-relayserialrestart-delay0clockrate64000noframe-relayinverse-arpframe-relaylmi-typeciscoframe-relayintf-typedceframe-relayroute201interfaceSerial1/0102R1上的配置interfaceSerial1/-relayserialrestart-delay0frame-,,扔给DLCI号码为102,并且是广播。frame--relayinverse-arp关闭自动的映射r1#shframe-relaypvc查询永久虚链路PVC的状态信息PVCStatisticsforinterfaceSerial1/0(FrameRelayDTE)ActiveInactiveDeletedStaticLMI提供的Local1000Switched0000Unused0000Active:表示的是链路没有任何问题Inactive:表示的是你的链路层起来了,但是可能局端那里配置有问题。Deleted:表示这个链路根本就没有起来。DLCI=102,DLCIUSAGE=LOCAL,PVCSTATUS=ACTIVE,INTERFACE=Serial1/pkts0inDEpkts0outDEpkts0outbcastpkts0outbcastbytes05minuteinputrate0bits/sec,0packets/sec5minuteoutputrate0bits/sec,0packets/reatetime00:02:46,lasttimepvcstatuschanged00:00:11r1#shframe-relaymap查询帧中继的映射表Serial1/0(up):(0x66,0x1860),static,broadcast,CISCO,statusdefined,activeSerial1/0(up):(0x66,0x1860),static,broadcast,CISCO,statusdefined,active为什么不能用动态解析的原因?点对点和点对多点的应用A我们先来看一下点对点的优势,以一个实际的工程项目来看配置SDM步骤:A路由器的配置Router(config)#usernameciscoprivilege15passwordciscoRouter(config)#intf0/0Router(config-if)#(config-if)#noshutRouter(config-if)#exitRouter(config)#iphttpsecure-serverDHCP(动态主机配置协议)动态分配IP地址她可以作为一个管理IP地址的工具。VPN的技术专线的费用是非常高的,中,那么这个花费是低廉的。但是这个也是不安全的,我们需要用vpn来对这样的行为进行加密VPN其实全称叫虚拟私有网络,其实说白了,就