2600系列的密码修改实例
2600系列的修改实例,使用
Ctrl+BREAK 中断启动.注意提示 monitor: command “boot” aborted due to user interrupt.
如下:
System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
(略)
PC = 0xfff0a530, Vector = 0x500, SP = 0x80004374
monitor: command “boot” aborted due to user interrupt
rommon 1 >confreg 0x2142
You must reset or power cycle for new config to take effect
提示重新启动,如下:
rommon 1>reset
重新启动后,进入特权模式,把 startup-config 复制到 running-config 中,并修改密码.如下:
Router#copy start run
Router#conf t
Router(config)#enable secret cisco
把 configuration register 的值还原,并保存,如下:
Router(config)#config-register 0x2102
Router(config)#^Z
Router#copy run start
cisco 2950 switch密码恢复
2950的密码恢复和2600路由器的密码恢复是不一样的。2950没有寄存器值让你改，而需要在重新加电后，把mode键按住；这时，用console口连接的话，机器上会显示flash_init,load_helper,switchboot这几条命令，运行
switch:flash_init
再运行dir flash:，配置文件就存储在config.text里面，当然密码也在里面。
rename flash:config.text flash:config.old
boot
启动完了以后，会问是否需要进入配置菜单， no
enable
rename flash:config.old flash:config.text
copy flash:config.text system:running-config
完了以后 ，
config terminal
no enable secret
enable secret cisco
exit
copy run start
r3#sh
*Mar 1 01:33:46.535: %SYS-5-CONFIG_I: Configured from console by console
r3#sh run
Building configuration...
Current configuration : 879 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname r3
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
ip cef
no ip domain lookup
!
!
!
interface Serial0/0
no ip address
shutdown
serial restart-delay 0
!
interface Serial0/1
ip address 200.1.1.12 255.255.255.0
serial restart-delay 0
!
interface Serial0/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial0/3
no ip address
shutdown
serial restart-delay 0
!
interface FastEthernet1/0
no ip address
shutdown
duplex auto
speed auto
!
ip http server
no ip http secure-server
ip route 0.0.0.0 0.0.0.0 Serial0/1
!
!
!
control-plane
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
no login
!
!
end