破解cisco交换机密码

1、断电重启Switch,同时住Mode键，待十五秒后，Switch port fastethernet0/1变成虎珀色，松开 .......

2、进入最小模式switch:    

Base ethernet MAC Address: 00:1e:79:04:eb:00
Xmodem file system is available.
The password-recovery mechanism is enabled.

The system has been interrupted prior to initializing the
flash filesystem. The following commands will initialize
the flash filesystem, and finish loading the operating
system software:

    flash_init
    load_helper
    boot
switch:

3、键入flash_int

switch: flash_init
Initializing Flash...
flashfs[0]: 458 files, 6 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 32514048
flashfs[0]: Bytes used: 9078784
flashfs[0]: Bytes available: 23435264
flashfs[0]: flashfs fsck took 13 seconds.
...done Initializing Flash.
Boot Sector Filesystem (bs) installed, fsid: 3
Setting console baud rate to 9600...

4、键入 load_helper

5、键入dir flash:

键入此命令后，显示出一些文件，其中有一个文件是储存配置信息的config.text

6、键入rename flash:config.text flash:config.old

改名就可以跳过原有配置文件信息，并不用担心配置文件丢失，如果你输入delete flash:confi.text那么你将不幸了，原有配置信息将丢失

7、键入boot，重启OK

8、键入en   ，嘿，不需要密码了

9、改回原有的配置文件信息，rename flash:config.old flash:config.text

10、改密码conf t       en pas cisco

11、wri mem保存