Virtual Private Networking; Considerations For Dual Wan Port Systems - NETGEAR FVX538 - ProSafe VPN Firewall 200 Router Reference Manual

This chapter describes how to use the virtual private networking (VPN) features of the VPN
firewall.
This chapter includes the following sections:
• "Considerations for Dual WAN Port Systems" on page 5-1
• "Using the VPN Wizard for Client and Gateway Configurations" on page 5-3
• "Testing the Connections and Viewing Status Information" on page 5-12
• "VPN Tunnel Policies" on page 5-15
• "Certificate Authorities" on page 5-19
• "Extended Authentication (XAUTH) Configuration" on page 5-23
• "Assigning IP Addresses to Remote Users (ModeConfig)" on page 5-29

Considerations for Dual WAN Port Systems

If both of the WAN ports of the VPN firewall are configured, you can enable either Auto-Rollover
mode for increased system reliability or Load Balancing mode for optimum bandwidth efficiency.
This WAN mode choice impacts how the VPN features must be configured.
The use of fully qualified domain names in VPN policies is mandatory when the WAN ports are in
load balancing or rollover mode; and is also required for the VPN tunnels to fail over. FQDN is
optional when the WAN ports are in load balancing mode if the IP addresses are static but
mandatory if the WAN IP addresses are dynamic.
Refer to "Virtual Private Networks (VPNs)" on page B-10
requirements for VPN in the dual WAN modes. For instructions on how to select and configure a
dynamic DNS service for resolving FQDNs, see
page 2-14. For instructions on WAN mode configuration, see
(Required for Dual WAN)" on page

Virtual Private Networking

Virtual Private Networking
"Configuring Dynamic DNS (If Needed)" on
2-8.
v1.0, March 2009
Chapter 5
for more on the IP addressing
"Configuring the WAN Mode
5-1