4000 Router Series Fundamentals Configuration Guide

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Ste

Command

Remarks

1. Enter system view.

system-view N/A

2. Set the DSCP value for

outgoing Telnet

packets.

• For a Telnet server running IPv4:

telnet server dscp dscp-value

• For a Telnet server running IPv6:

telnet server ipv6 dscp dscp-value

By default, the DSCP value is 48.

Configuring common VTY line settings

For a VTY line, you can specify a command that is to be automatically executed when a user logs in.

After executing the specified command and performing the incurred task, the system automatically

disconnects the Telnet session. Before you configure this function and save the configuration, make sure

you can access the CLI through a different user line.

Typically, you configure the auto-execute command telnet X.X.X.X command on the device so the device

redirects a Telnet user to the host at X.X.X.X. In this case, the connection to the current device is closed

when the user terminates the Telnet connection to X.X.X.X.

To configure common settings for VTY lines:

Ste

Command

Remarks

1. Enter system view.

system-view N/A

2. Enter VTY line view or

class view.

• To enter VTY line view:

line vty first-number

[ last-number ]

• To enter VTY line class

view:

line class vty

Use either command.

Settings configured in a user line class view are

applied as user-defined default settings to all

user lines of the line class. Settings configured in

a user line view are applied to only the user line

and take precedence over the user-defined

default settings. If a parameter is not configured

in user line view or user line class view, the

factory default setting is used.

Settings in a user line view take effect

immediately and affect the online user. Settings

in the line class view do not affect online users

and take effect only for users who log in after the

configuration is completed.

3. Enable the terminal

service.

shell By default, terminal service is enabled.

4. Specify the protocols

for the user lines to

support.

protocol inbound { all | pad

| ssh | telnet }

By default, Telnet and SSH are supported.

This configuration is effective only for users who

completed.

5. Define a shortcut key

for terminating tasks.

escape-key { character |

default }

By default, pressing Ctrl+C terminates a task.

6. Specify the terminal

display type.

terminal type { ansi |

vt100 }

By default, the terminal display type is ANSI.

7. Set the maximum

number of lines to be

displayed on a screen.

screen-length screen-length

By default, up to 24 lines is displayed on a

screen.

A value of 0 disables the function.