PC机要开启端口管理
保存配置(路由器,交换机),save, Y , R.cgf , 回车
[R2]saveThe current configuration will be written to the device. Are you sure? [Y/N]:YPlease input the file name(*.cfg)[flash:/R2.cfg](To leave the existing filename unchanged, press the enter key):R2.cfgflash:/R2.cfg exists, overwrite? [Y/N]:YValidating file. Please wait...Configuration is saved to device successfully.重启后,一定要开启路由器的对应端口
然后再进行ping 或者是其他操作