3-6
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter one or more VTY user
interface views
user-interface vty
first
-
number
[
last-number
]
—
Configure not to authenticate
users logging in to VTY user
interfaces
authentication-mode none
Required
By default, VTY users are
authenticated after logging in.
Configure the command level
available to users logging in to
VTY user interface
user privilege level level
Optional
By default, commands of level
0 are available to users logging
in to VTY user interfaces.
Configure the protocols to be
supported by the VTY user
interface
protocol inbound
{
all
|
ssh
|
telnet
}
Optional
By default, both Telnet protocol
and SSH protocol are
supported.
Set the command that is
automatically executed when a
user logs into the user interface
auto-execute command text
Optional
By default, no command is
automatically executed when a
user logs into a user interface.
Define a shortcut key for
aborting tasks
escape-key
{
default
|
character
}
Optional
The default shortcut key
combination for aborting tasks
is < Ctrl + C >.
Make terminal services
available
shell
Optional
By default, terminal services
are available in all user
interfaces.
Set the maximum number of
lines the screen can contain
screen-length
screen-length
Optional
By default, the screen can
contain up to 24 lines.
You can use the
screen-length
0 command to disable the
function to display information
in pages.
Set the history command buffer
size
history-command max-size
value
Optional
The default history command
buffer size is 10. That is, a
history command buffer can
store up to 10 commands by
default.
Set the timeout time of the VTY
user interface
idle-timeout
minutes
[
seconds
]
Optional
The default timeout time of a
user interface is 10 minutes.
With the timeout time being 10
minutes, the connection to a
user interface is terminated if
no operation is performed in the
user interface within 10
minutes.
You can use the
idle-timeout
0
command to disable the
timeout function.
