line

line

Changes the command mode to Line configuration mode.

Syntax: line {vty value | console value}

vty value

The value is always 0 4.

There is always a space between the 0 and 4.

The line changes are effective at the next logon.

console value

The value is always 0.

The line changes are effective immediately and at the next login.

Description: The line command changes the command mode to Line configuration command mode.

Virtual terminal sessions may only be configured as one unit. Configuration changes are effective immediately for "like-kind" configurations. Two examples of "like-kind" configurations:

Configure the console 0 characteristics from the console session.

Configure vty 0 4 changes from (any) a telnet session.

For non "like-kind" configurations, the effect is delayed until the next logon. If configuration of console 0 is made from a telnet session those changes are applied to the next console session.

Changes made in Line configuration command mode persist across sessions. Changes made with the terminal commands (terminal length and terminal width) last for the current session only.

Factory Default: None.

Command Mode: Configuration.

Table 1-1. Commands Available in Line Configuration Command Mode
Command Description

exec-timeout

Session logs out if there is no command line activity for the length of time set by this command on virtual (vty) sessions.

history

Enables command line history.

history size

Shows default number set for number of history items.

ip netmask-format

Sets the netmask format for the show command.

length

Sets the number of lines on the terminal screen.

password

Sets this password for logging in through this line.

privilege [0 | 1]

Allows you to set the command mode in which the terminal starts at logon.

width

Sets terminal width for this line.

Example 1: In the following example, the line command changes the command mode from Configuration to Line Configuration:

router#configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

router(config)#line vty 0 4

router(config-line)#

Example 2: In the following example,

The line console command specifies a console line 0 and changes the command mode to Line Configuration.

The ? command lists the commands available in Line Configuration command mode:

router#configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

router(config)#line console 0

router(config-line)#?

exit Exit from line configuration mode

help Description of the interactive help system

history Set terminal history buffer size

ip Set IP netmask format

length Number of lines on the display screen (0 defeats screen pause)

login Enable login facility on this line

no Negate a command or set its defaults

password Set a password

privilege Change privilege level for line

width Number of columns on the display screen (0 use default of 80)

router(config-line)#

Related Commands: exec-timeout
history
history size
ip netmask-format
length
password
privilege level
show line
width

vty value	The value is always 0 4. There is always a space between the 0 and 4. The line changes are effective at the next logon.
console value	The value is always 0. The line changes are effective immediately and at the next login.

**Table 1-1.** Commands Available in Line Configuration Command Mode
Command	Description
exec-timeout	Session logs out if there is no command line activity for the length of time set by this command on virtual (vty) sessions.
history	Enables command line history.
history size	Shows default number set for number of history items.
ip netmask-format	Sets the netmask format for the show command.
length	Sets the number of lines on the terminal screen.
password	Sets this password for logging in through this line.
privilege [0 \| 1]	Allows you to set the command mode in which the terminal starts at logon.
width	Sets terminal width for this line.

router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. router(config)#line vty 0 4 router(config-line)#

router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. router(config)#line console 0 router(config-line)#? exit Exit from line configuration mode help Description of the interactive help system history Set terminal history buffer size ip Set IP netmask format length Number of lines on the display screen (0 defeats screen pause) login Enable login facility on this line no Negate a command or set its defaults password Set a password privilege Change privilege level for line width Number of columns on the display screen (0 use default of 80) router(config-line)#

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