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kb:cisco_password_recovery

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Cisco Password Recovery

  1. Boot the router and interrupt the boot sequence by performing a break (CTRL+BREAK), which will take the router into ROM monitor mode (rommon)
  2. Change the configuration register to turn on bit 6
    rommon> confreg 0x2142
  3. Reload the router
    reset
  4. Enter privileged mode (answer “no” to entering setup mode, press ENTER to go into user mode, type enable to go into privileged mode)
    en
  5. Copy the startup-config file to running-config
    copy start run
  6. Change the password
    conf t
    user admin secret <newpassword>
    enable secret <newpassword>
  7. Reset the configuration register to the default value
    config-register 0x2102
  8. Save the router configuration
    copy run start
  9. Reload the router
    reload
kb/cisco_password_recovery.1527563774.txt.gz · Last modified: 2018/05/29 12:46 by Dan Mundy