Quick Reference Guide

Table Of Contents
Chapter 5: Virtual Private Networking Using IPsec | 71
ProSafe Dual WAN Gigabit Firewall with SSL & IPsec VPN FVS336Gv2 Reference Manual
The following diagrams and table show how the WAN mode selection relates to VPN
configuration.
Figure 5-4
The following table summarizes the WAN addressing requirements (FQDN or IP address) for
your VPN tunnel in either dual WAN mode.
Table 5-5. IP Addressing for VPNs in Dual WAN Port Systems
Configuration and WAN IP address Rollover Mode
1
1 All tunnels must be re-established after a rollover using the new WAN IP address.
Load Balancing Mode
VPN Road Warrior
(client-to-gateway)
Fixed FQDN required FQDN Allowed (optional)
Dynamic FQDN required FQDN required
VPN
Gateway-to-Gateway
Fixed FQDN required FQDN Allowed (optional)
Dynamic FQDN required FQDN required
VPN Telecommuter
(client-to-gateway
through a NAT router)
Fixed FQDN required FQDN Allowed (optional)
Dynamic FQDN required FQDN required
Rest of
Firewall
Functions
Firewall
WAN Port
Functions
Firewall
Rollover
Control
Firewall
WAN 1 Port
WAN 2 Port
Internet
Same FQDN required for both WAN ports
WAN Auto-Rollover: FQDN Required for VPN
Rest of
Firewall
Functions
Firewall
WAN Port
Functions
Load
Balancing
Control
Firewall
WAN 1 Port
WAN 2 Port
Internet
FQDN required for dynamic IP addresses
WAN Load Balancing: FQDN Optional for VPN
FQDN optional for static IP addresses