5、, line protocol is up正常工作Serial1 is up, line protocol is down连接问题Serial1 is down, line protocol is down端口问题Serial1 is administratively down, line protocol is down人为关闭配置寄存器的值1、 关闭路由器的电源重新启动按住ctrl+break键入进2、 >3、 >o/r 0×2142(跳过nvarm启动恢复密码)4、 >I5、 当系统提示是否进入setup模式时,按N6、 r
7、uter(config)#ip route 0.0.0.0 s0(出口端口或下一跳IP地址)rip设置router(config)#router riprouter(config-router)#network network-numberrouter#show ip protocol查看RIP信息router#show ip route 查看路由表router#debug ip rip查看RIP更新信息router(config-router)#passive-interface e0(阻止发出作息)router(config-
8、router)#ip rip receive version 1 2接收1、2RIP版本信息igrp设置router(config)#router igrp as numberrouter(config-router)#network networ