Netgear FVS336G-100NAS Reference Manual - Page 222
VPN Telecommuter: Single Gateway WAN Port Reference Case, VPN Telecommuter: Dual Gateway WAN Ports
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ProSafe Dual WAN Gigabit Firewall with SSL & IPsec VPN FVS336G Reference Manual VPN Telecommuter: Single Gateway WAN Port (Reference Case) In the case of the single WAN port on the gateway VPN firewall (Figure C-17), the remote PC client at the NAT router initiates the VPN tunnel because the IP address of the remote NAT router is not known in advance. The gateway WAN port must act as the responder. Figure C-17 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 Telecommuter: Dual Gateway WAN Ports for Improved Reliability In the case of the dual WAN ports on the gateway VPN firewall (Figure C-18), 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 NAT router is not known in advance. The gateway WAN port must act as the responder. Figure C-18 C-18 Network Planning for Dual WAN Ports v1.0, October 2007