How to Password Reset on ASA 5505

Step1: Reboot ASA

Step 2: Wait till the you can see following “Use BREAK or ESC to interrupt boot.”  and then hit the ESC key, works on MAC/Terminal as well. (see below)


Step 3: Then you should land in “rommon #0>”

Step 4: Change the confreg valu to 0x41 as it tells to ignore its saved (startup) configuration upon boot

rommon #2> confreg 0×41

Step 5: reboot

rommon #2> reboot

Step 6: After the reboot you need to change the confreg value back to 0x01 and reboot.

ciscoasa(config)# config-register 0x01
ciscoasa# reboot

Leave a Reply

Your email address will not be published. Required fields are marked *
You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>