Recovery Password Cisco Router

If you have a problem with accessing Cisco router cause forgotten the password, hope this tutorial will help you to find out how to fix it.

• If you can access the router, type show version at the prompt, and record the configuration register setting.
• 0x2102 boots and loads your saved configuration.
  0x2142 boots and by-passes the configuration and allows you to view/edit the save configuration if you need to do any kind of password recovery, etc.
• Use the power switch in order to turn off the router, and then turn the router back on.
• Press Ctrl + Break on the terminal keyboard a couple of time after power up in order to put the router into ROMmon.
• If the break sequence does not work, refer to Standard Break Key Sequence Combinations During Password Recovery for other key combinations. 
• Type confreg 0x2142
• rommon 1 > confreg 0x2142
• Type reset
• rommon 2 > reset
•  Type no in the intial cofiguration dialog
• Would you like to enter the initial configuration dialog? [yes/no]: no
• Do not type copy running-config startup-config or write. These commands erase your startup configuration.
• If you really want to restore your existing configuration,
• Type copy startup-config running-config
• Router#copy startup-config running-config
• Type configure terminal. 
• Type enable secret <password> in order to change the enable secret password.
• Type config-register 0x2102
• Type write memory or copy running-config startup-config in order to commit the changes.

 Reference : 
http://www.cisco.com/c/en/us/support/docs/routers/2600-series-multiservice-platforms/22188-pswdrec-2600.html