ProSafe VPN Firewall 200 FVX538 Reference Manual
Configuring the WAN Mode (Required for Dual WAN)
The dual WAN ports of the ProSafe VPN Firewall 200 can be configured on a mutually exclusive basis for either
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If you want to use a redundant ISP link for backup purposes, select the WAN port that will act as the primary link for this mode. Ensure that the backup WAN port has also been configured and that you configure the WAN Failure Detection Method to support
•Load Balancing Mode. In this mode the router distributes the outbound traffic equally among the WAN interfaces that are functional.
Note: Scenarios could arise when load balancing needs to be bypassed for certain traffic or applications. Here the traffic needs to go on a specific WAN interface. This is done with the protocol binding rules of that WAN interface. The rule should match the desired traffic.
For both alternatives, you must also set up Network Address Translation (NAT):
•NAT. NAT is the technology which allows all PCs on your LAN to share a single Internet IP address. From the Internet, there is only a single device (the Router) and a single IP address. PCs on your LAN can use any private IP address range, and these IP addresses are not visible from the Internet.
–The Router uses NAT to select the correct PC (on your LAN) to receive any incoming data.
–If you only have a single Internet IP address, you MUST use NAT.
NAT is the default setting.
•Classical Routing. In this mode, the Router performs Routing, but without NAT. To gain Internet access, each PC on your LAN must have a valid Internet IP address.
Connecting the FVX538 to the Internet |
v1.0, August 2006