CyberGuard SG300 User Manual page 66

The CyberGuard SG appliance supports a wide range of configurations through which
you can utilize multiple Internet connections,
and even multiple CyberGuard SG appliances,
to help ensure Internet availability in the event
of service outage or heavy network load.
The following Internet availability services are
provided by the CyberGuard SG appliance.
They may be configured individually, or in
combination.
Internet Failover: configuring a back up,
redundant Internet connection (or connections) that is only established should the
primary link lose connectivity
Load Balancing: establishing another Internet connection (or connections)
concurrently with the primary link, for spreading network load over multiple
connections
High Availability: installing a back up, redundant CyberGuard SG appliance to monitor
the status of the primary unit, coming online and becoming the Internet gateway for
your network should the primary CyberGuard SG appliance fail
Note
CyberGuard SG appliance models SG300, SG530 and SG550 are limited to Internet
availability configurations using a single broadband Internet connection and a single
dialout or ISDN connection.
Configure Internet connections
Configure all Internet connections to use in conjunction with the CyberGuard SG
appliance's Internet availability services. Secondary and tertiary Internet connections are
configured in the same manner as the primary Internet connection, as detailed in the
sections entitled Direction Connection, ADSL, Cable Modem, and Dialout/ISDN earlier in
this chapter.
Note
Network Setup
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