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Element Manager Reference Datacryptor Ethernet User Manual
Page 78 THALES
The unit can be rebooted using the option available on the Diagnostic tab
Interface Mode - Allows the Host and network interfaces to be switched Up/Down.
Link Mode - Allows the Host and network connections to be individually switched On/Off. If the
LLCF option is selected, the connection is on with link loss carry forward turned on.
Auto Negotiation - allows the unit to automatically negotiate connection without intervention
from the user.
Note: The Datacryptor 100 Mb Ethernet may be set to 100 Mbps or 10 Mbps full
duplex. The Host and Network interfaces on encryption units at both ends of
the link need to run at the same speed.
Pause - The Pause option is a special Ethernet function that provides flow control between
Ethernet devices. If the switch on the public network is told to enable Pause, then a rule has to
be configured on the encryption unit to let the Pause frames pass through unencrypted to the
switch on the local side. A typical rule is:
Plain public 01:80:c2:00:00:01.
This Multicast address corresponds to address reserved in IEEE 802.3 for the Pause
functionality.
Speed (configured) – Must be set to 10 Meg or 100 Meg as appropriate to the speed of the
link. Enabling auto-negotiation only permits the Datacryptor to tell requesting units what speed
it is set to, it does not support the auto-negotiation of speed.
Frame Checksum. If the FCS box is checked then the checksum is stripped off the incoming
frame and added again for outgoing frames. When the FCS box is not checked the FCS is
treated like normal data will be and encrypted and decrypted like data on the public interface.
The FPV imposes the following defaults when switching modes. When switching from Bulk to
Tunneling the Network FCS is checked. When switching from Tunneling to Bulk, the Network
FCS is unchecked. It is advised that the user accepts these default settings.
Status- Shows the current status of the Host and network interfaces.