23
is not supported in FIPS mode. For more information about FIPS mode, see Security
Configuring Telnet login on the device
(Required.) Configuring login authentication:
• Disabling authentication for Telnet login
• Configuring password authentication for Telnet login
• Configuring scheme authentication for Telnet login
Configure one authentication mode as
required.
(Optional.) Setting the maximum number of concurrent Telnet
users
N/A
(Optional.) Setting the DSCP value for outgoing Telnet packets N/A
(Optional.) Configuring common VTY line settings N/A
Telnet login configuration changes do not take effect for current online users. They take effect only
for new login users.
Disabling authentication for Telnet login
1. Enter system view.
system-view
N/A
2. Enable Telnet server.
telnet server enable
By default, the Telnet server feature is
disabled.
3. Enter VTY line view or
class view.
• Enter VTY line view:
line vty first-number
[ last-number ]
• Enter VTY line class
view:
line class vty
A setting in user line view is applied only to
the user line. A setting in user line class view
is applied to all user lines of the class.
A non-
default setting in either view takes
precedence over a default setting in the
other view. A non-default setting in user line
view takes precedence over a non-default
setting in user line class view.
A
setting in user line view takes effect
immediately and affects the online user. A
setting in user line class view does not affect
online users and takes effect only for new
login users.
4. Disable
authentication.
authentication-mode none
By default, password authentication is
enabled for VTY lines.
In VTY line view, this command is
associated with the
protocol inbound
command. If you specify a non-default value
for only
one of the two commands in VTY
line view, the other command uses the
default setting, regardless of the setting in
VTY line class view.
5.
user role.
user-role
role-name
By default, a VTY line user is assigned the
user role
network-operator
.