User guide

Appendices 111
2. The Connected Users dialog box appears, containing a list of all users connected to the
CPS810 appliance or CPS1610 appliance port using the Telnet application. Click OK to close
the dialog box.
- or -
If no users are connected to the CPS810 appliance or CPS1610 appliance port using the Telnet
application, a message box appears. Click OK to close the message box.
Security property
The Telnet application’s security property specifies whether Telnet application sessions to a DS
appliance will be in Plain Text mode or SSL mode.
In Plain Text mode, all data is sent unencrypted to the DS appliance. When Plain Text mode is
used, any Telnet application that supports VT52, VT100, VT100+, VT102, VT220, VT320 or
ASCII Terminal Emulation mode may be used to access the DS appliance.
In SSL mode, all data sent to the device during the DSView management software Telnet
application session is DES encrypted. The DS appliance supports anonymous Diffie-Hellman key
exchange. The exchange of certificates for authentication is not supported. When SSL mode is
used, only the built-in DSView management software Telnet application may be used to access the
DS appliance. The ports on a DS appliance have the same security property as the device.
The security property is set in the DSView management software and in the DS appliance from the
Command Line Interface (CLI). When you initiate access to a DS appliance or port using the Telnet
application from the DSView management software, the DSView management software attempts
to read the security property directly from the DS appliance.
If the SSL property has not been enabled on the DS appliance, and the DSView management
software receives confirmation from the DS appliance, the DSView management software will
automatically open its built-in Telnet application and you will be prompted for a DS appliance
username and password.
After that information has been entered, an SSL connection to the DS appliance is established over
TCP port 8192. When that connection is established, the DS appliance validates the user’s access
privileges and port availability. In this case, the Telnet application’s property screen in the DSView
management software for that DS appliance will automatically be set to SSL values, even if they
previously held Plain Text mode values. The property screen will be disabled, and you will not be
allowed to change any of its values. The DSView management software database will be updated
with the information read from the DS appliance/DSR switch.
If the DSView management software does not receive a reply from the DS appliance, it will use the
Security mode settings in the DSView management software database. In this case, the Telnet
application’s property screen in the DSView management software for that DS appliance will show
the database values, and you will be able to change them.
Setting the security property
The security property that is set when a DS appliance is added to the DSView management
software database depends on the method being used to add the device.