Netgear FVX538 FVX538 Reference Manual - Page 212

VPN Telecommuter: Dual Gateway WAN Ports for Load Balancing, C-20

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ProSafe VPN Firewall 200 FVX538 Reference Manual VPN Telecommuter: Dual Gateway WAN Ports for Load Balancing In the case of the dual WAN ports on the gateway VPN firewall (Figure C-20), the remote PC client initiates the VPN tunnel with the appropriate gateway WAN port (i.e., port WAN1 or WAN2 as necessary to balance the loads of the two gateway WAN ports) because the IP address of the remote NAT router is not known in advance. The chosen gateway WAN port must act as the responder. 10.5.6.0/24 Telecommuter Example (Dual WAN Ports, Load Balancing) Gateway A LAN IP 10.5.6.1 VPN Router (at employer's main office) WAN1 IP bzrouter1.dyndns.org WAN IP NAT Router B bzrouter2.dyndns.org WAN2 IP 0.0.0.0 Fully-Qualified Domain Names (FQDN) - optional for Fixed IP addresses - required for Dynamic IP addresses NAT Router (at telecommuter's home office) Figure C-20 Client B Remote PC (running NETGEAR ProSafe VPN Client) 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. C-20 Network Planning for Dual WAN Ports v1.0, August 2006

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ProSafe VPN Firewall 200 FVX538 Reference Manual
C-20
Network Planning for Dual WAN Ports
v1.0, August 2006
VPN Telecommuter: Dual Gateway WAN Ports for Load Balancing
In the case of the dual WAN ports on the gateway VPN firewall (
Figure C-20
), the remote PC
client initiates the VPN tunnel with the appropriate gateway WAN port (i.e., port WAN1 or WAN2
as necessary to balance the loads of the two gateway WAN ports) because the IP address of the
remote NAT router is not known in advance. The chosen gateway WAN port must act as the
responder.
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.
Figure C-20
Gateway A
bzrouter2.dyndns.org
10.5.6.0/24
10.5.6.1
WAN1 IP
WAN IP
LAN IP
Client B
0.0.0.0
VPN Router
(at employer's
main office)
Telecommuter Example
(Dual WAN Ports, Load Balancing)
NAT Router B
NAT Router
(at telecommuter's
home office)
Remote PC
(running NETGEAR
ProSafe VPN Client)
Fully-Qualified Domain Names (FQDN)
- optional for Fixed IP addresses
- required for Dynamic IP addresses
WAN2 IP
bzrouter1.dyndns.org