Router# service password-encryption
Router(config)# service password-encryption
Administratively shut down the interface.
Physically secure the interface.
Create an access list and apply it to the virtual terminal interfaces with the access-group command.
Configure a virtual terminal password and login process.
Enter an access list and apply it to the virtual terminal interfaces using the access-class command.
The router cannot verify that the Cisco IOS image currently in flash is valid
Flash memory on Cisco routers can contain only a single IOS image.
Erasing current flash content is requested during the copy dialog.
In order for the router to use the new image as the default, it must be the only IOS image in flash.
By encrypting all passwords passing through the router
By encrypting passwords in the plain text configuration file
By requiring entry of encrypted passwords for access to the device
By configuring an MD5 encrypted key to be used by routing protocols to validate routing exchanges
By automatically suggesting encrypted passwords for use in configuring the router
A command that is available in every release of IOS, regardless of the version or deployment status
A command that can be entered in any configuration mode
A command that is universal in application and supports all protocols
A command that is implemented in all foreign and domestic IOS versions
A command that is set once and affects the entire router
It configures SSH globally for all logins.
It tells the router or switch to try to establish an SSh connection first and if that foils to use Telnet.
It configures the virtual terminal lines with the password 030752180500.
It configures a Cisco network device to use the SSH protocol on incoming communications via the virtual terminal ports.
It allows seven failed login attempts before the VTY lines are temporarily shutdown.
Show ip route
Show cdp neighbors
Service password-encryption access-list 1 permit 192.168.1.0 0.0.0.255 line vty 0 4 login password cisco access-class 1
Enable password secret line vty 0 login password cisco
Service password-encryption line vty 1 login password cisco
Service password-encryption line vty 0 4 login password cisco
Only passwords configured after the command has been entered will be encrypted.
Only the enable password will be encrypted.
Only the enable secret password will be encrypted
It will encrypt the secret password and remove the enable secret password from the configuration.
It will encrypt all current and future passwords.