Password Recovery on Cisco router


Password Recovery, In general why some one would go for password recovery. Either user might be forgot his password or change of user. Here are basic requirements before recovering password.

  1. We need console connection to the router .
  2. Emulation software.
Procedure:
  1. After restarting the router press some keys on the keyboard on pc operating system which connected to router via console port. Special keys are different for different Operating system.                             Window Operating system:- Ctrl + Pause Break , Linux Ctrl+a, f.
  2. After press keys we are allowed to default mode of router where we have to set the register value as 0x2142. But this value option is again different for different router.
  3. Fixed Router > o/r 0x2142 and >i(restarting)
  4. Modular Router : rommon1>confreg 0x2142  and rommon2>reset.
  5. After entering into router, we should copy the information from NVRAM  to RAM
  6. Router#copy startup-config running-config
  7. After copying the information, we should give no shutdown command in all interfaces and should change console, auxilary, telnet and enable secret passwords.
  8. After changing settings copy the information from RAM to NVRAM.
  9. Router#copy running-config startup-config
  10. To set back the register value
  11. Router(config)#config-register 0x2102.
 

Comments

  1. kiteducationApril 26, 2014 at 3:45 PM

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