思科Catalyst交换机密码恢复妙招
程序员文章站
2022-06-04 20:41:25
思科Catalyst交换机密码恢复妙招...
如果交换机的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
switch:
输入boot命令启动交换机:
switch:boot
loading "flash:c3500xl−c3h2s−mz.120−5.wc7.bin"...###############################
################################################################################
######################################################################
file "flash:c3500xl−c3h2s−mz.120−5.wc7.bin" uncompressed and installed, entry po
int: 0x3000
executing...
(略)
不进入setup模式:
−−− system configuration dialog −−−
at any point you may enter a question mark '?' for help.
use ctrl−c to abort configuration dialog at any prompt.
default settings are in square brackets '[]'.
continue with configuration dialog? [yes/no]: n
进入特权模式,恢复原始的配置文件:
switch#rename flash:config.old flash:config.text
destination filename [config.text]
switch#
把配置文件保存在内存里:
switch#copy flash:config.text system:running−config
destination filename [running−config]?
1131 bytes copied in 0.760 secs
switch#
进入全局配置模式,取消密码设置:
switch(config)#no enable secret
保存配置:
switch#write memory
building configuration...
[ok]
switch#
搞定了@_@
4.对于catalyst 3550/3750系列来说:
1.通过带有支持xmodem协议的超级终端程序的pc连接到交换机的console口,把波特率设置为9600。
2.拔掉交换机的电源。
3.按下交换机上的mode按钮,与此同时,重新插上交换机的电源线。当交换机端口1x上的led熄灭后可以松开mode按钮1到2秒,之后将显示一些指示信息:
the system has been interrupted prior to initializing the flash file system. the following
commands will initialize the flash file system, and finish loading the operating system
software:
flash_init
load_helper
boot
switch#
4.初始化flash文件系统:
switch#flash_init
5.加载帮助文件:
switch#load_helper
6.显示闪存里的内容:
switch#dir flash:
7.重命名配置文件:
switch#rename flash:config.text flash:config.text.old
8.启动系统,并且如果提示进入setup模式,输入n:
switch#boot
continue with the configuration dialog? [yes/no]: n
9.进入特权模式,把配置文件名恢复为原始文件名:
switch#rename flash:config.text.old flash:config.text
10.把配置文件写进内存:
switch#copy flash:config.text system:running-config
source filename [config.text]?
destination filename [running-config]?
11.进入全局配置模式更改密码:
switch(config)#enable secret {password}
12.退出,并保存到startup-config文件里:
switch(config)#copy running-config startup-config
其实有的时候硬件安全比软件安全还要重要些.不然人人都抗个本本,.连根线到console口去恢复密码了。
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
switch:
输入boot命令启动交换机:
switch:boot
loading "flash:c3500xl−c3h2s−mz.120−5.wc7.bin"...###############################
################################################################################
######################################################################
file "flash:c3500xl−c3h2s−mz.120−5.wc7.bin" uncompressed and installed, entry po
int: 0x3000
executing...
(略)
不进入setup模式:
−−− system configuration dialog −−−
at any point you may enter a question mark '?' for help.
use ctrl−c to abort configuration dialog at any prompt.
default settings are in square brackets '[]'.
continue with configuration dialog? [yes/no]: n
进入特权模式,恢复原始的配置文件:
switch#rename flash:config.old flash:config.text
destination filename [config.text]
switch#
把配置文件保存在内存里:
switch#copy flash:config.text system:running−config
destination filename [running−config]?
1131 bytes copied in 0.760 secs
switch#
进入全局配置模式,取消密码设置:
switch(config)#no enable secret
保存配置:
switch#write memory
building configuration...
[ok]
switch#
搞定了@_@
4.对于catalyst 3550/3750系列来说:
1.通过带有支持xmodem协议的超级终端程序的pc连接到交换机的console口,把波特率设置为9600。
2.拔掉交换机的电源。
3.按下交换机上的mode按钮,与此同时,重新插上交换机的电源线。当交换机端口1x上的led熄灭后可以松开mode按钮1到2秒,之后将显示一些指示信息:
the system has been interrupted prior to initializing the flash file system. the following
commands will initialize the flash file system, and finish loading the operating system
software:
flash_init
load_helper
boot
switch#
4.初始化flash文件系统:
switch#flash_init
5.加载帮助文件:
switch#load_helper
6.显示闪存里的内容:
switch#dir flash:
7.重命名配置文件:
switch#rename flash:config.text flash:config.text.old
8.启动系统,并且如果提示进入setup模式,输入n:
switch#boot
continue with the configuration dialog? [yes/no]: n
9.进入特权模式,把配置文件名恢复为原始文件名:
switch#rename flash:config.text.old flash:config.text
10.把配置文件写进内存:
switch#copy flash:config.text system:running-config
source filename [config.text]?
destination filename [running-config]?
11.进入全局配置模式更改密码:
switch(config)#enable secret {password}
12.退出,并保存到startup-config文件里:
switch(config)#copy running-config startup-config
其实有的时候硬件安全比软件安全还要重要些.不然人人都抗个本本,.连根线到console口去恢复密码了。
上一篇: 怎样泡茶?这样泡出来的茶叶会更好喝
下一篇: 无线局域网技术名词解释说明