3com 4210 PWR 9-Port 3CR17341-91-ME ユーザーズマニュアル

The password control feature is designed to manage the following passwords:

■

Telnet passwords: passwords for logging into the switch through Telnet.

■

SSH passwords: passwords for logging into the switch through SSH.

■

FTP passwords: passwords for logging into the switch through FTP.

■

Super passwords: passwords used by the users who have logged into the 
switch and are changing from a lower privilege level to a higher privilege level.

Password control provides the following functions:

Table 408   Functions provided by password control

Password aging 

Password aging time setting: Users can set the aging 
time for their PASSWORDS. If a password ages out, its 
user must change it, otherwise the user cannot log into 
the device.

All 
passwords 

Password change: After a password ages out, the user 
can change it when logging into the device.

Telnet SSH 
and Super 
passwords 

Alert before password expiration: Users can set their 
respective alert time. If a user logs into the system when 
the password is about to age out (that is, the remaining 
usable time of the password is no more than the set 
alert time), the switch will alert the user to the 
forthcoming expiration and prompts the user to change 
the password as soon as possible.

Limitation of 
minimum password 

This function is used to limit the minimum length of the 
passwords. A user can successfully configure a 
password only when the password is not shorter than its 
minimum length.

All 
passwords 

History password 
function 

History password recording function: The password 
configured and once used by a user is called a history 
(old) password. The switch is able to record the user 
history password. Users cannot successfully replace their 
passwords with history passwords.

All 
passwords 

History password protection function: History passwords 
are saved in a readable file in the Flash memory, so they 
will not be lost when the switch reboots.

Password protection 
and encryption 

Encrypted display: The switch protects the displayed 
password. The password is always displayed as a string 
containing only asterisks (*) in the configuration file or 
on user terminal.

All 
passwords 

Saving passwords in ciphertext: The switch encrypts and 
saves the configured passwords in ciphertext in the 
configuration file.