3Com Switch 7754, Configuration Manual

Page: 56 / 940

56 C
HAPTER
4: L
OGGING IN THROUGH
T
ELNET
Note that if you configure to authenticate the users in the password mode, the
command level available to users logging into a switch depends on both the
authentication-mode password command and the user privilege level level
command, as listed in Table 26.
Configuration Example Network requirements
Assume that you are a level 3 AUX user and want to perform the following
configuration for Telnet users logging into VTY 0:
■
Authenticate users logging into VTY 0 using the local password.
■
Set the local password to 123456 (in plain text).
■
Commands of level 2 are available to users logging into VTY 0.
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
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.
Table 26 Determine the command level when users logging into switches are
authenticated in the password mode
Scenario
Command level
Authentication
mode User
type
Command
Password
(
authentication-m
ode password )
VTY users The user privilege level level
command not executed
Level 0
The user privilege level level
command already executed
Determined by
the
level
argument
Table 25 Telnet configuration with the authentication mode being password
Operation Command Description