[Cisco] Password recovery

Home

Vendor

Cisco

[Cisco] Password recovery - Router

Google Translation

Main Menu

Login Form

Sections

Latest Articles

Cisco Router Password recovery

Step 0. Plug console cable to the router

Step 1. Power cycle the router.

Step 2. Send a "break" command to the router within the first 60 seconds after power cycle. From the console mode, press "Control /Bracket" or "Control/Break"

Step 3. From the ROM monitor prompt, set the configuration register value to 0x142. This causes the router to bypass the configuration contents stored in NVRAM upon next bootup. To do this, type:

> o/r 0x142

Step 4. Once the configuration register has been changed, initialize and reboot the router by typing the following:

> i

The router will reboot itself.

Step 5. After the router boots up, you will be prompted if you want to enter the initial configuration dialog. Type: "n" for no. Note: If you accidentally enter the initial configuration dialog, abort by typing: .

Step 6. Enter privileged EXEC mode by typing the enable command. No password will be required. The prompt will change to Router(boot)#.

Router>enable Router#

Step 7. Load the original configuration back into the router.

Router# copy startup-config running-config

Note: If the router has originally been configured with a hostname, the prompt will now change to router_name#

Step 8. Set the new enable password.

Router# config term
Router(config)# enable secret

Step 9. Restore the configuration register and exit configuration mode. The configuration register must be reset so the router will properly boot using the configuration now stored in NVRAM.

Router(config)# config-reg 0x2102
Router(config)# end

Step 10. Save changes

Router# copy running-config startup-config

Step 11. Reload the router

Router# reload

Reference : http://www.cisco.com/en/US/products/sw/iosswrel/ps1831/products_tech_note09186a00801746e6.shtml

Add as favourites (24) | Views: 530 | E-mail

Comments (1)

1. baixar
Written by This e-mail address is being protected from spam bots, you need JavaScript enabled to view it , on 11-10-2007 11:33
obrigado pela atençãO

Report

Write Comment
Please keep the topic of messages relevant to the subject of the article. Personal verbal attacks will be deleted. Please don't use comments to plug your web site. Such material will be removed. Just ensure to Refresh your browser for a new security code to be displayed prior to clicking on the 'Send' button. Keep in mind that the above process only applies if you simply entered the wrong security code.
Name:
E-mail
Title:
BBCode:
Comment:
Code:*