Cisco交换机口令的恢复(1200, 2900, 2926, 4000, 5000, 5500, 6000)
Contents
Description
Step-by-Step Procedure
Sample Output of a PassWord Recovery Procedure
Related Information
Description
This document describes the password recovery procedure for the following Cisco prodUCts:
Catalyst 1200
Catalyst 2900
Catalyst 2926
Catalyst 4000
Catalyst 5000
Catalyst 5500
Catalyst 6000

Step-by-Step Procedure
Attach a terminal or PC with terminal emulation to the console port of the switch. Use the following terminal settings:
9600 baud rate
no parity
8 data bits
1 stop bit
Turn off the switch and then turn it on.
Important You must complete steps 3 through 7 within 30 seconds after you turn the switch off and on and the first time you see the password prompt.
Press Enter at the password prompt to enter a null password.
Type enable at the prompt to enter enable mode.
Press Enter at the password prompt to enter a null password.
Change the password using the set password command or the set enablepass command.
Press Enter at the prompt to enter the old password.
set password
Use the set password command to change the login password on the CLI.
set password

Syntax Description
This command has no arguments or keywords.
Default
The default configuration has no password configured.
Command Type
Switch command.
Command Mode
Privileged.
Usage Guideline
The command prompts you for the old password. If the password you enter is valid, you are prompted to enter a new password and to verify the new password. A zero-length password is allowed by pressing Return.
Example
This example shows how to set an initial password:
Console> (enable) set password
Enter old password: <old_password>
Enter new password: <new_password>
Retype new password: <new_password>
Password changed.
Console> (enable)

set enablepass
Use the set enablepass command to change the password for the privileged level of the CLI.
　
set enablepass

Syntax Description
This command has no arguments or keywords.
Default
The default configuration has no enable password configured.
Command Type
Switch command.
Command Mode
Privileged.
Usage Guideline
The command prompts you for the old password. If the password you enter is valid, you are prompted to enter a new password and to verify the new password. A zero-length password is allowed.
Example
This example shows how to establish a new password:
Console> (enable) set enablepass
Enter old password: <old_password>
Enter new password: <new_password>
Retype new password: <new_password>
Password changed.
Console> (enable)

Sample Output of a Password Recovery Procedure
Console>en
Enter password:
Sorry
Console>
!--- The switch is being power cycled.
!
System Bootstrap, Version 5.2(1)CSX
Copyright (c) 1994-1999 by cisco Systems, Inc.
c6k_sup1 processor with 65536 Kbytes of main memory
Autoboot executing command: "boot bootflash:cat6000-sup.5-3-3-CSX.bin"
Uncompressing file: #####################################################
#########################################################################
#########################################################################
#########################################################################
#########################################################################
#########################################################################
#########################################################################
#########################################################################
#########################################################################
#########################################################################
#########################################################################
#########################################################################
#########################################################################
#########################################################################
#########################################################################
##########################################################
System Power On Diagnostics
DRAM Size ....................64 MB
Testing DRAM..................Passed
Verifying Text segment .......Passed
NVRAM Size ...................512 KB
Saving NVRAM .................Done
Testing NVRAM ................Passed
Restoring NVRAM ..............Done
Level2 Cache .................Present
Testing Level2 Cache .........Passed
System Power On Diagnostics Complete
Boot image: bootflash:cat6000-sup.5-3-3-CSX.bin
Running System Diagnostics from this Supervisor (Module 1)
This may take up to 2 minutes....please wait

Cisco Systems Console

NTP: Previous SW using local time...
Enter password: (press Enter)
2000 Jan 09 23:09:27 %SYS-1-SYS_NORMPWRMGMT:System in normal power management operation
2000 Jan 09 23:09:27 %SYS-5-MOD_PWRON:Module 3 powered up
2000 Jan 09 23:09:27 %SYS-5-MOD_PWRON:Module 4 powered up
2000 Jan 09 23:09:34 %SYS-5-MOD_OK:Module 1 is online
Console> en
Enter password: (press Enter)
Console> (enable) set password
Enter old password: (press Enter)
Enter new password: (type your new password)
Retype new password: (type your new password)
Password changed.
Console> (enable) set enablepass
Enter old password: (press Enter)
Enter new password: (type your new password)
Retype new password: (type your new password)
Password changed.
Console> (enable)