Cisco Systems 3750E manual Recovering from a Lost or Forgotten Password, 45-3, Switch flashinit

Chapter 45 Troubleshooting

Recovering from a Lost or Forgotten Password

load_helper

boot

Step 7 Initialize the flash file system:

switch: flash_init

Step 8 If you had set the console port speed to anything other than 9600, it has been reset to that particular

speed. Change the emulation software line speed to match that of the switch console port.

Step 9 Load any helper files:

switch: load_helper

Step 10 Start the file transfer by using the Xmodem Protocol.

switch: copy xmodem: flash:image_filename.bin

Step 11 After the Xmodem request appears, use the appropriate command on the terminal-emulation software to start the transfer and to copy the software image into flash memory.

Step 12 Boot up the newly downloaded Cisco IOS image.

switch:boot flash:image_filename.bin

Step 13 Use the archive download-swprivileged EXEC command to download the software image to the switch or to the switch stack.

Step 14 Use the reload privileged EXEC command to restart the switch and to verify that the new software image is operating properly.

Step 15 Delete the flash:image_filename.bin file from the switch.

Recovering from a Lost or Forgotten Password

The default configuration for the switch allows an end user with physical access to the switch to recover from a lost password by interrupting the boot process during power-on and by entering a new password. These recovery procedures require that you have physical access to the switch.

Note On these switches, a system administrator can disable some of the functionality of this feature by allowing an end user to reset a password only by agreeing to return to the default configuration. If you are an end user trying to reset a password when password recovery has been disabled, a status message shows this during the recovery process.

These sections describes how to recover a forgotten or lost switch password:

•Procedure with Password Recovery Enabled, page 45-5

•Procedure with Password Recovery Disabled, page 45-7

You enable or disable password recovery by using the service password-recoveryglobal configuration command. When you enter the service password-recoveryor no service password-recoverycommand on the stack master, it is propagated throughout the stack and applied to all switches in the stack.

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

OL-9775-02 45-3