ZyXEL Communications P841C User Manual
P841C Central-Side VDSL Modem
3-2
Configuring the P841C
Figure 3-3 Wrong Password
You should change the default password using the passwd command.
3.3 Commands
3.3.1 General Command Conventions
References to “LT” and “NT” are common throughout the commands. “LT” means means Line Termination
(unit), which is the P841C VDSL central office side modem. “NT” means Network Termination (unit), which is
the subscriber’s VDSL modem (P841).
(unit), which is the P841C VDSL central office side modem. “NT” means Network Termination (unit), which is
the subscriber’s VDSL modem (P841).
3.3.2 Command Syntax Conventions
• Command keywords are in regular courier font and should be typed in as they appear or in abbreviated
form (see the next section).
• Optional fields (parameters) in a command are enclosed in “[]” brackets. For example,
P841C> vdsl active [on|off]
P841C> vdsl active [on|off]
• The “|” symbol is shorthand for the word “or”. For example,
vdsl debug [on|off]
3.4 System Related Commands
Help, exit, passwd,
sys
and
fwupgrade
are the system related commands.
3.4.1 Passwd
Command
passwd
Use this command to change the login password. The default password when shipped is “1234”.
Figure 3-4 Change Password Command
Type your new password (up to 15 characters) in the New Password field and press [ENTER]. To confirm,
retype the same password in the Retype New Password field. As you enter the password, the screen displays an
“*” for each character you type. You see the P841C prompt after a successful password change.
retype the same password in the Retype New Password field. As you enter the password, the screen displays an
“*” for each character you type. You see the P841C prompt after a successful password change.
P841C>passwd
New Password: *
Retype New Password: *
P841C>
New Password: *
Retype New Password: *
P841C>
P841C>****
Wrong Password!
Wrong Password!