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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 51 Troubleshooting
Recovering from a Lost or Forgotten Password
Step 11 Change the password:
Switch (config)# enable secret password
The secret password can be from 1 to 25 alphanumeric characters, can start with a number, is case
sensitive, and allows spaces but ignores leading spaces.
Step 12 Return to privileged EXEC mode:
Switch (config)# exit
Switch#
Step 13 Write the running configuration to the startup configuration file:
Switch# copy running-config startup-config
The new password is now in the startup configuration.
Note This procedure is likely to leave your switch virtual interface in a shutdown state. You can see
which interface is in this state by entering the show running-config privileged EXEC command.
To re-enable the interface, enter the interface vlan vlan-id global configuration command, and
specify the VLAN ID of the shutdown interface. With the switch in interface configuration
mode, enter the no shutdown command.
Step 14 Reload the switch or switch stack:
Switch# reload
Procedure with Password Recovery Disabled
If the password-recovery mechanism is disabled, this message appears:
The password-recovery mechanism has been triggered, but
is currently disabled. Access to the boot loader prompt
through the password-recovery mechanism is disallowed at
this point. However, if you agree to let the system be
reset back to the default system configuration, access
to the boot loader prompt can still be allowed.
Would you like to reset the system back to the default configuration (y/n)?
Caution Returning the switch to the default configuration results in the loss of all existing configurations. We
recommend that you contact your system administrator to verify if there are backup switch and VLAN
configuration files.
If you enter n (no), the normal boot process continues as if the Mode button had not been pressed;
you cannot access the boot loader prompt, and you cannot enter a new password. You see the
message:
Press Enter to continue........
If you enter y (yes), the configuration file in flash memory and the VLAN database file are deleted.
When the default configuration loads, you can reset the password.