Ender204426777乾颐堂CCNAv3.0课程EstablishingInternetConnectivityConfiguringaCiscoRouter配置思科路由器乾颐堂CCNAv3.0Ender204426777InitialRouterStartupInitialstartup:•Beforeyoustarttherouter,verifythepowerandcoolingrequirements,cabling,andconsoleconnection.•PushthepowerswitchtoOn.•Systemstartuproutinesinitiatetheroutersoftware.•CiscoIOSSoftwareoutputtextappearsontheconsole.EnderICND1—2-70乾颐堂CCNAv3.0Ender204426777InitialRouterSetupRouterXcon0isnowavailablePressRETURNtogetstarted.RouterX>---SystemConfigurationDialog---Wouldyouliketoentertheinitialconfigurationdialog?[yes/no]:•AconfiguredrouterwithanexistingconfigurationdisplaysauserEXECmodeprompt.•Arouterwithoutanexistingconfigurationentersthesystemconfigurationdialog.EnderICND1—2-71乾颐堂CCNAv3.0Ender204426777ConfiguringRouterInterfacesRouterX(config)#interfaceGigabitEthernet0/0RouterX(config-if)#RouterX(config)#interfaceSerial0/0/0RouterX(config-if)#descriptionLinktoISP•EntersGigabitEthernet0/0interfaceconfigurationmode•EntersSerial0/0/0interfaceconfigurationmodeandaddsdescriptivetextEnderICND1—2-72乾颐堂CCNAv3.0Ender204426777ConfiguringRouterInterfaces(Cont.)RouterX#configureterminalRouterX(config)#interfaceGigabitEthernet0/0RouterX(config-if)#noshutdown%LINK-3-UPDOWN:InterfaceGigabitEthernet0/0,changedstatetoup%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceGigabitEthernet0/0,changedstatetoupRouterX#configureterminalRouterX(config)#interfaceSerial0/0/0RouterX(config-if)#shutdown%LINK-5-CHANGED:InterfaceSerial0/0/0,changedstatetoadministrativelydown%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceSerial0/0/0,changedstatetodown•Enablesaninterfacethatisadministrativelyshutdown•AdministrativelydisablesaninterfaceEnderICND1—2-73乾颐堂CCNAv3.0Ender204426777ConfiguringtheCiscoRouterIPAddressEachrouterinterfaceneedsauniqueIPaddress.RouterX#configureterminalRouterX(config)#interfaceSerial0/0/0RouterX(config-if)#ipaddress172.18.0.1255.255.0.0•ConfiguresanIPaddressontheSerial0/0/0interfaceonrouterRouterXEnderICND1—2...
