How to reset the Cisco ASA password
May 21st, 2009
Today I was working on the ASA and I found out that I don’t have a login password for it. So, to reset the ASA password I followed the following steps;
- Power cycle the ASA by unplugging and plugging back in the power adapter.
- While restarting, press ESC to enter the ROM Monitor mode. prompt should look like (rommon#0)
- Enter command confreg. This will show the current configuration register, which should be 0×00000001. Say NO to change prompt
- Change configuration register to 0×41 to ignore the Startup-configuration on boot. to do this type (rommon#1) confreg 0×41
- Reset the ASA with (rommon#2) boot command
- ASA will reboot and show the default prompt ciscoasa>
- Do ciscoasa>enable and press Enter
- Press Enter. (Password is blank)
- You should be in privileged mode ciscoasa#
- Run ciscoasa# copy start run
- Destination File name [running-config]
- Enter the ASA configuration mode. ciscoasa# config terminal
- Now set the new password of your choice. ciscoasa(config)# enable password yourNewPassword
- Change configuration register back to 0×00000001 to boot from startup-config. ciscoasa(config)# config-register 0×01
- Save the running-config to startup-config. ciscoasa# copy run start
- Reload the ASA. ciscoasa# reload
After successful reload, you will be able to use your newely created password in STEP 13.
Enjoy!!!
~Robbie Deol
