Configuring Telnet
Telnet is used as a way of connecting to a device remotely
and in the case of cisco devices it is used to remotely view and make changes
to device configuration.
To setup telnet access into a cisco device there are a
number of commands involved:
1.
Router# configure terminal
Router(config)# line vty 0 4
Router(config-line)# password cisco
Router(config-line)# exec-timeout 20
Router(config-line)# login
Router(config-line)#
exit
The line vty 0 4 command is used to
configure telnet and define the number of users that connect to the device at
once. 0 4 means that 5 users can connect at any one time – 0,1,2,3,4. If you used
the command line vty 0 9 it would
mean that 10 users would be able to connect simultaneously.
The exec-timeout command specifies the
number of minutes until the telnet connection is dropped if it’s not being
used.
The login command
specifies that the password must be used for the user to telnet into the device.
If you typed no login instead of login then no
password would be required.
** You also need to make sure that the device that you are
telneting into has an enable password so that you can access the privileged
exec mode via telnet.
Router# configure terminal
Router(config)#
enable password cisco
