please enter config modeuse command as followsdefault interface fa0/25then,you can set the int fa0/25 to factory defaultBest regards R1(config)#default interface e0/3
erase run 清除当前配置的信息
交换机和路由器都有复位的命令,找找看
只能一条条清除原来的命令在原命令前加no