Brief Introduction to Cisco WS-C6509 switch password recovery

Source: Internet
Author: User

Recently, the OS of a vswitch is old, so I want to update it. I want to ask a user to update the OS. After updating the OS, the problem occurs, I have a password for the OS. Since the password is being used and it is difficult for them to ask for it, I am ready to clear the password. After finding the relevant article on www.cisco.com, cleared successfully. Write down the cleanup process.

Let's talk about the configuration environment first, the switch is a WS-C6509, with CatOS, in my opinion, the process of restoring the Cisco password is the easiest to restore CatOS, just a few steps can be done.

1. Connect the computer or terminal to the console of the switch to start the switch.

2. When the switch is started, press Enter to get a user prompt. Press Enter for the following time:

After a vswitch is enabled, the following message is displayed:

The following is a reference clip:
System Bootstrap, Version 5.3(1) 
Copyright (c) 1994-1999 by Cisco Systems, Inc. 
c6k_sup1 processor with 65536 Kbytes of main memory 
Autoboot executing command: "boot bootflash:cat6000-sup9k.6-1-1c.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-sup9k.6.1.1(c).bin

When this line appears, the switch will be loading the OS and will be static for two to three minutes. Here you can make preparations. When new content appears, press Enter until the following prompt is displayed:

The following is a reference clip:
Running System Diagnostics from this Supervisor (Module 1) 
This may take up to 2 minutes....please wait 
Cisco Systems Console 
Enter password:

At this time, you will succeed. Press Enter to Enter, and the switch directly enters the Console> prompt

3. After the user prompt, enter enable to enter the privileged mode.

Console> en <------ press ENTER

Enter password: <------ press Enter

Console> (enable)

4. In privileged mode, you can use the set password and set enablepass commands to change the password.

The following is a reference clip:
Console> (enable) set password 
Enter old password: <------ press Enter
Enter new password: <------ press Enter
Retype new password: <------ press ENTER
Password changed. 
Console> (enable) set enablepass 
Enter old password: <------ press Enter
Enter new password: <------ press Enter
Retype new password: <------ press ENTER
Password changed.

In this way, the password is cleared.

Here, I would like to remind you that the above period of time is very limited, and it can only take about three minutes, so the action can be fast.

  1. How to restore the password of Cisco 19 series and 29 series switches
  2. How to restore a vswitch Password
  3. Cisco Catalyst Switch password recovery policy

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