【cisco路由器恢复出厂设置步骤图文】分享给互联网从爱好者学习参考。
CISCO路由器恢复到出厂的设置的方法一、Cisco 1000,1600,2500,4000系列
1、IOS映像恢复的方法及步骤
1) 连接PC的COM1口与路由器的console口,使用PC的超级终端软件访问该路由器;
2)
开启路由器的电源开关,并在30秒内按下键盘的Ctrl+break,中断路由器的正常启动以进入rom监视模式,屏幕上提示符如下:
>
3) 键入如下命令:
>o /r 0x2101
改变路由器虚拟寄存器的默认值(0x2102);
4) 键入重启命令:
>i
路由器重启,当屏幕显示以下信息表明路由器重启完毕:
System Bootstrap, Version 5.2(8a), RELEASE SOFTWARE
Copyright (c) 1986-1995 by cisco Systems
2500 processor with 1024 Kbytes of main memory
…
Press RETURN to get started!
5) 路由器在虚拟寄存器的值为0x2101时自动进入rom启动模式:
router(boot)>
6) 此时,将TFTP服务器上的IOS映像文件恢复至路由器flash memory中,依次键入以下命令:
router(boot)>en
router(boot)#copy tftp flash
System flash directory:
No files in System flash
Address or name of remote host
?192.168.18.168(IP地址已作技术处理,下同)
Source file name? igs-i-l.110-22a.bin(IOS映像文件名)
Destination file name ?
Accessing file ‘igs-i-l.110-22a.bin’ on
192.168.18.168…
Loading igs-i-l.110-22a.bin from 192.168.18.168 (via
Ethernet0): !
Device needs erasure before copying new file
Erase flash device before writing?
Copy ‘igs-i-l.110-22a.bin’ from server
as ‘igs-i-l.110-22a.bin’ into Flash WITH erase?
y
Erasing device… eeeeeeeeeeeeeeee …erased
Loading igs-i-l.110-22a.bin from 192.168.18.168 (via
Ethernet0): !!!!!!!!!!!!!!!!!!!!(!表示恢复成功)
7) 还原路由器虚拟寄存器的默认值(0x2102),恢复路由器的正常启动顺序,依次键入以下命令:
router(boot)#conf t
router(boot)(config)#config-register 0x2102
router(boot)(config)#exit
router(boot)#wr
router(boot)#reload