如果交换机的login密码忘记了咋办啊?
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。