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24
Encryption settings
The AdderView CATxIP 5000 offers a great deal of flexibility in its configuration
and this extends equally to its encryption settings that are used to prevent
unauthorised interception of signals. Due to the variety of situations in which
the AdderView CATxIP 5000 might be used and the range of viewer applications
that need to view it, a number of settings are available. The encryption settings
to use depend upon how the potential global users will operate.
Important factors to consider when setting these options might be:
• Do all global user connections and operations require encryption?
• Will some global users be using older VNC viewer versions?
AdderView CATxIP 5000 encryption settings
The AdderView CATxIP 5000 configuration menu offers three encryption
settings:
• Always on - This setting will force all viewers to use encryption. Note:
This setting will preclude any VNC viewer versions that do not support
encryption.
• Prefer off - This setting does not enforce encryption unless a viewer
specifically requests it. If a viewer has its ‘Let server choose’ setting, then an
un-encrypted link will be set up.
• Prefer on - This setting generally enforces encryption unless an earlier
viewer version is unable to support it, in which case the link will be un-
encrypted. If a viewer has its ‘Let server choose’ setting, then the link will be
encrypted.
Viewer encryption settings
The web browser viewers and VNC viewers (of level 4.0b5S or higher) offer four
encryption settings:
• Always on - This setting will ensure that the link is encrypted, regardless of
the AdderView CATxIP 5000 encryption setting.
• Let server choose - This setting will follow the configuration of the
AdderView CATxIP 5000. If the AdderView CATxIP 5000 has ‘Always on’ or
‘Prefer on’ set, then the link will be encrypted. If the ‘Prefer off’ setting is
selected at the AdderView CATxIP 5000, then the link will not be encrypted.
• Prefer off - This setting will configure an un-encrypted link if the
AdderView CATxIP 5000 will allow it, otherwise it will be encrypted.
• Prefer on - If the AdderView CATxIP 5000 allows it, this setting will
configure an encrypted link, otherwise it will be un-encrypted.