Cisco Small Business Pro SA 520W Administration Manual page 66

Networking
Configuring the Optional WAN
STEP 1
STEP 2
Cisco SA 500 Series Security Appliances Administration Guide
Figure 7 Example of Dual WAN Ports with Load Balancing
When configuring load balancing, make sure that you configure both
NOTE
WAN ports with the Connectivity Type set to Keep Connection. If the WAN is
configured to time out after a specified period of inactivity, then load
balancing is not applicable.
• Failure Detection: Enable this feature to allow the security appliance to
detect the failure of a WAN link. You can specify the detection method. In
the event of a failure, traffic for the unavailable link is diverted to the
available link.
Before you perform this procedure, you must configure the optional
NOTE
WAN connection. See
Click Networking on the menu bar, and then click Optional Port > WAN Mode in
the navigation tree.
—OR—From the Getting Started (Advanced) page, under Secondary WAN Port,
click Configure WAN Mode.
The WAN Mode page appears.
In the Port Mode area, choose one of the following modes:
• Auto-Rollover with Primary port as: Choose this option If you have two
ISP links and you want to use one link as a backup. From the drop-down list,
choose the WAN port that you want to designate as the primary link:
Dedicated WAN or Optional WAN.
When Auto Failover mode is enabled, the link status of the primary WAN port
is checked at regular intervals as defined by the failure detection settings.
• Load Balancing: Choose this option if you have two ISP links that you want
to use simultaneously. After you complete this procedure by clicking the
Apply button, you need to configure the protocol bindings. See
the Protocol Bindings for Load Balancing, page
Dual WAN Ports (Load Balancing)
WAN1 IP
SA 500
yourcompany1.dyndns.org
yourcompany2.dyndns.org
WAN2 IP
Configuring the Optional WAN, page
Internet
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Configuring
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