Some basic commands of Na

Router> en
Router> enable
Router # Conf
Router # configure t
Router # configure Terminal
Enter configuration commands, one per line. End with cntl/Z.
Router (config) # ena
Router (config) # enable Pa
Router (config) # enable password Cisco
Router (config) # En
Router (config) # ena
Router (config) # enable Sec
Router (config) # enable secret Cisco
The enable secret you have chosen is the same as your enable password.
This is not recommended. re-enter the enable secret.

Router (config) # Line vty?
<0-15> first line number

Router (config) # Line vty 0 4
Router (config-line) # passwor
Router (config-line) # password Cisco
Router (config-line) # exit
Router (config) # exit
Router #
00: 03: 40: % SYS-5-CONFIG_ I: configured from console by consolei
% Incomplete command.

router # conf T
enter configuration commands, one per line. end with cntl/Z.
router (config) # Line con 0
router (config-line) # Exec-T
router (config-line) # Exec-timeout 0
router (config-line) # logg
router (config-line) # logging synch
router (config-line) # logging synchronous
router (config-line) # End
router # conf T
enter configuration commands, one per line. end with cntl/Z.
router (config) # host
router (config) # hostname R1
r1 (config) #