Netgear FVS124G FVS124G Reference Manual - Page 37
VPN Road Warrior: Dual Gateway WAN Ports for Improved Reliability
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Reference Manual for the ProSafe VPN Firewall 25 with 4 Gigabit LAN and Dual WAN Ports 10.5.6.0/24 Road Warrior Example (Single WAN Port) Client B LAN IP 10.5.6.1 Gateway A VPN Router (at employer's main office) WAN IP FQDN bzrouter.dyndns.org 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 3-8: Single gateway WAN port case for VPN road warrior The IP address of the gateway WAN port can be either fixed or dynamic. If the IP address is dynamic, a fully-qualified domain name must be used. If the IP address is fixed, a fully-qualified domain name is optional. VPN Road Warrior: Dual Gateway WAN Ports for Improved Reliability In the case of the dual WAN ports on the gateway VPN firewall (Figure 3-9), the remote PC client initiates the VPN tunnel with the active gateway WAN port (port WAN1 in this example) because the IP address of the remote PC client is not known in advance. The gateway WAN port must act as a responder. 10.5.6.0/24 Road Warrior Example (Dual WAN Ports, Before Rollover) LAN IP 10.5.6.1 Gateway A VPN Router (at employer's main office) WAN1 IP bzrouter.dyndns.org X WAN2 port inactive X WAN2 IP (N/A) Fully-Qualified Domain Names (FQDN) - required for Fixed IP addresses - required for Dynamic IP addresses WAN IP 0.0.0.0 Client B Remote PC (running NETGEAR ProSafe VPN Client) Figure 3-9: Dual gateway WAN ports, before rollover, for VPN road warrior The IP addresses of the gateway WAN ports can be either fixed or dynamic, but a fully-qualified domain name must always be used because the active WAN port could be either WAN1 or WAN2 (i.e., the IP address of the active WAN port is not known in advance). Network Planning 3-7 202-10085-01, March 2005