3com 4210 PWR 9-Port 3CR17341-91-ME User Manual

C

HAPTER

 2: L

OGGING

 

INTO

 

AN

 E

THERNET

 S

WITCH

Note that if you configure not to authenticate the users, the command level 
available to users logging into a switch depends on the user privilege level level 
command

Assume current user logins through the Console port, and the user level is set to 
the administrator level (level 3). Perform the following configurations for users 
logging in through VTY 0 using Telnet.

■

Do not authenticate the users.

■

Commands of level 2 are available to the users.

Configure the 
command level 
available to users 
logging into VTY user 
interface 

user privilege level level 

Optional

By default, commands of level 0 
are available to users logging into 
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 commands to 
be executed 
automatically after a 
user login to the user 
interface successfully 

auto-execute command text 

Optional

By default, no command is 
executed automatically after a 
user logs into the VTY user 
interface. 

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.

Table 20   Telnet configuration with the authentication mode being none