Quick Reference Guide

ProSafe VPN Firewall 200 FVX538 Reference Manual
Network Planning for Dual WAN Ports B-15
v1.0, March 2009
The IP address of the gateway WAN ports can be either fixed or dynamic. If an IP address is
dynamic, a fully-qualified domain name must be used. If an IP address is fixed, a fully-qualified
domain name is optional.
VPN Gateway-to-Gateway: Dual Gateway WAN Ports for Improved Reliability
In the case of the dual WAN ports on the gateway VPN firewall, either of the gateway WAN ports
at one end can initiate the VPN tunnel with the appropriate gateway WAN port at the other end as
necessary to balance the loads of the gateway WAN ports because the IP addresses of the WAN
ports are known in advance. In this example, port WAN_A1 is active and port WAN_A2 is inactive
at Gateway A; port WAN_B1 is active and port WAN_B2 is inactive at Gateway B.
Figure B-13
Figure B-14