Blue Coat SG210 series, Руководство по установке

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Appendix A: Removing the Pass-Through Card 43
Appendix A: Removing the Pass-Through Card
Important: This procedure is optional; it describes how to change the default fail open behavior in
the pass-through card to the fail closed in the SG 210 Series. In the following
procedure, the illustrations depict an appliance without an SSL card. If your appliance
shipped with an SSL card, you must remove it before attempting these instructions.
Refer to the SSL Card Installation Instructions for information about removing the SSL
card.
The SG 210 Series appliance ships a pass-through card—a 10/100 dual port Ethernet adapter designed by
Blue Coat to provide an efficient, fault-tolerant bridging solution. If this card is installed on your SG210,
the SGOS detects the card upon system bootup and automatically creates a bridge—the two Ethernet ports
on the appliance serve as the bridge ports. If the SG210 is powered down or loses power for any reason,
the bridge fails open; that is, Web traffic passes from one Ethernet port to the other. Therefore, Web traffic
is uninterrupted, but does not route through the appliance.
Because the pass-through card fails open, it can create a security risk. If you prefer that the appliance fail
closed, blocking all traffic if the appliance loses power, you must remove the pass-through card.
WARNING! ALWAYS observe proper electrostatic discharge (ESD) conventions. Attach an ESD
protective wrist strap (not included with the SG210 shipment) to your wrist and to the
SG210 chassis. Ensure that the SG210 is on an ESD-safe work surface or ground the
unit appropriately. Blue Coat does not assume responsibility or liability for damage
resulting from ESD.
To remove the pass-through card:
1
While the SG210 is still powered on, attach the disposable ESD wrist strap: wrap the adhesive side of
the ESD wrist strap around your wrist, remove the backing from the copper tape, and attach the
copper tape to a non-painted metal surface of the SG210 chassis.
2
Remove the Ethernet cables and, if necessary, the serial cable.