User Guide
76.....Avocent® Universal Management Gateway Appliance Installer/User Guide
Encryption level
In the Encryption Level area, specify an encryption level for the keyboard/mouse, video and virtual
media:
• 3DES - SSL Triple DES encryption
• 128-Bit SSL - 128-bit encryption which used an ARCFOUR (RC4®) SSL cipher
• AES - AES encryption
At least one encryption level must be specified for the keyboard and mouse. When you specify
more than one SSL encryption type, the appliance negotiates the strongest algorithm that is
supported by both sides. The strongest algorithm is AES, followed by 128 bit, 3DES and DES.
Session settings
Under the Session Settings heading you can configure the Input Control Timeout, enable and
configure the session timeout, set the keyboard language, set the EDID (video)resolution and
enable video noise control.
NOTE: If a user connects to a target with a higher screen resolution than the local computer, the Video
Viewer window will display a portion of the target screen, with scroll bars for viewing the remainder of the
screen. The user may view the entire screen by adjusting the resolution on the target, the local computer or
both.
Session preemption
Under the Session Preemption heading, you can enable preemption and set the time-out.
Virtual media
Under the Virtual Media heading you can enable virtual media, lock to KVM session, allow reserved
sessions and select the virtual media access mode.
• The locking option specifies whether a virtual media session is locked to the KVM session on
the target. When locking is enabled (default) and the KVM session is closed, the virtual media
session will also be closed. When locking is disabled and the KVM session is closed, the
virtual media session will remain active.
• Allow reserved sessions ensures that a virtual media connection can only be accessed with
your username and that no other user can create a KVM connection to that target. When the
associated KVM session is disconnected, the virtual media session may be disconnected
according to the Locked setting in the Virtual Media dialog box.