Netgear FVX538 FVX538 Reference Manual - Page 206
VPN Gateway-to-Gateway, VPN Gateway-to-Gateway: Single Gateway WAN Ports Reference Case
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ProSafe VPN Firewall 200 FVX538 Reference Manual 10.5.6.0/24 Road Warrior Example (Dual WAN Ports, Load Balancing) Client B LAN IP 10.5.6.1 Gateway A VPN Router (at employer's main office) WAN1 IP bzrouter1.dyndns.org bzrouter2.dyndns.org WAN2 IP Fully-Qualified Domain Names (FQDN) - optional for Fixed IP addresses - required for Dynamic IP addresses WAN IP 0.0.0.0 Remote PC (running NETGEAR ProSafe VPN Client) Figure C-12 The IP addresses 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 The following situations exemplify the requirements for a gateway VPN firewall to establish a VPN tunnel with another gateway VPN firewall: • Single gateway WAN ports • Redundant dual gateway WAN ports for increased reliability (before and after rollover) • Dual gateway WAN ports used for load balancing VPN Gateway-to-Gateway: Single Gateway WAN Ports (Reference Case) In the case of single WAN ports on the gateway VPN firewalls (Figure C-13), either gateway WAN port can initiate the VPN tunnel with the other gateway WAN port because the IP addresses are known in advance. C-14 Network Planning for Dual WAN Ports v1.0, August 2006