HP 4800G Series Configuration Manual page 1695

telnet Establish one TELNET connection
tracert Trace route function
After you set the user privilege level under the user interface, users can log in to the device through
Telnet without any authentication and use the following commands:
<Sysname> ?
User view commands:
cluster Run cluster command
debugging Enable system debugging functions
display Display current system information
ipc Interprocess communication
ping Ping function
quit Exit from current command view
refresh Do soft reset
reset Reset operation
screen-length Specify the lines displayed on one screen
send Send information to other user terminal interface
ssh2 Establish a secure shell client connection
super Set the current user priority level
telnet Establish one TELNET connection
terminal Set the terminal line characteristics
tracert Trace route function
undo Cancel current setting
Authenticate the usesr logging in to the device through Telnet, verify their passwords, and specify
the user privilege levels as 2.
<Sysname> system-view
[Sysname] user-interface vty 0 4
[Sysname-ui-vty0-4] authentication-mode password
[Sysname-ui-vty0-4] set authentication password cipher 123
[Sysname-ui-vty0-4] user privilege level 2
By default, when users log in to the device through Telnet, they can use the commands of level 0 after
passing the authentication. After you set the user privilege level under the user interface, when users
log in to the device through Telnet, they need to input password 123, and then they can use commands
of levels 0, 1, and 2.
Switching user privilege level
Users can switch their user privilege level temporarily without logging out and disconnecting the current
connection; after the switch, users can continue to configure the device without the need of relogin and
reauthentication, but the commands that they can execute have changed. For example, if the current
user privilege level is 3, the user can configure system parameters; after switching the user privilege
level to 0, the user can only execute some simple commands, like ping and tracert, and only a few
display commands. The switching of user privilege level is temporary, and effective for the current login;
after the user relogs in, the user privilege restores to the original level.
To avoid misoperations, the administrators are recommended to log in to the device by using a lower
privilege level and view device operating parameters, and when they have to maintain the device, they
can switch to a higher level temporarily; when the administrators need to leave for a while or ask
someone else to manage the device temporarily, they can switch to a lower privilege level before they
leave to restrict the operation by others.
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