思科Catalyst交换机密码恢复妙招

1/5/2008来源:交换技术人气:4134

  假如交换机的login密码忘记了咋办啊?
  别急别急,只要你有PC,有类似超级终端(Hyper Terminal)这样是终端程序,连接到交换机的console口,那么密码的恢复就简单了。
  
  1.对于Catalyst 2900/3500XL系列来说:
  拔下交换机的电源线,然后按住交换机的Mode按钮,再重新插上交换机的电源线.直到端口Port 1x的LED熄灭之后释放Mode按钮。
  就这么简单,别告诉我你不知道Mode按钮在哪啊。
  
  2.对于Catalyst 2940/2950L系列来说:
  拔下交换机的电源线,然后按住交换机的Mode按钮,再重新插上交换机的电源线.直到STAT的LED熄灭之后释放Mode按钮。
  
  3.对于Catalyst 2955系列来说:
  Catalyst 2955没有没有外部的Mode按钮,因此就不能使用之前的那种方法来进行密码恢复.在交换机启动时,对于Windows系列的PC,按下Ctrl+Break键;对于UNIX系列的工作站,按下Ctrl+C.如下:
  C2955 Boot Loader (C2955−HBOOT−M) Version 12.1(0.0.514), CISCO DEVELOPMENT TEST
  VERSION
  Compiled Fri 13−Dec−02 17:38 by madison
  WS−C2955T−12 starting...
  Base ethernet MAC Address: 00:0b:be:b6:ee:00
  Xmodem file system is available.
  
  Initializing Flash...
  flashfs[0]: 19 files, 2 Directories
  flashfs[0]: 0 orphaned files, 0 orphaned directories
  flashfs[0]: Total bytes: 7741440
  flashfs[0]: Bytes used: 4510720
  flashfs[0]: Bytes available: 3230720
  flashfs[0]: flashfs fsck took 7 seconds.
  ...done initializing flash.
  Boot Sector Filesystem (bs:) installed, fsid: 3
  Parameter Block Filesystem (pb:) installed, fsid: 4
  /---接下来交换机会在15秒内自动启动,等出现该信息之后,按下Ctrl+Break键或Ctrl+C键----/
  
  The system has been interrupted PRior to initializing the flash file system to finish
  loading the Operating system software:
  flash_init
  load_helper
  bootswitch:
  
  接下来输入flash_init命令:
  switch:flash_init
  Initializing Flash...
  flashfs[0]: 143 files, 4 directories
  flashfs[0]: 0 orphaned files, 0 orphaned directories
  flashfs[0]: Total bytes: 3612672
  flashfs[0]: Bytes used: 2729472
  flashfs[0]: Bytes available: 883200
  flashfs[0]: flashfs fsck took 86 seconds
  ....done Initializing Flash.
  Boot Sector Filesystem (bs:) installed, fsid: 3
  Parameter Block Filesystem (pb:) installed, fsid: 4
  switch:
  
  接着输入load_helper命令:
  switch:load_helper
  switch:
  
  再输入dir flash:命令显示交换机的文件系统:
  switch:dir flash:
  Directory of flash:/
  2 −rwx 1803357 c3500xl−c3h2s−mz.120−5.WC7.bin
  4 −rwx 1131 config.text
  5 −rwx 109 info
  6 −rwx 389 env_vars
  7 drwx 640 Html
  18 −rwx 109 info.ver
  403968 bytes available (3208704 bytes used)
  switch:
  
  把配置文件重命名:
  switch:rename flash:config.text flash:config.old