The enable password is similar to the superuser or Administrator password and protects your Cisco router. Only after authenticating with this password can you make changes to your device.
To change or set the enable password to PaSsWoRd, use the following command:
config t
enable secret PaSsWoRd
The enable password PaSsWoRd command will also set the enable password, but will leave the password in plain text and visible in the router configuration. This is not affected by the service password-encryption setting.