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Network Planning for Multiple WAN Ports (IPv4 Only)
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ProSafe Gigabit Quad WAN SSL VPN Firewall SRX5308
VPN Telecommuter: Dual-Gateway WAN Ports for Load Balancing
In a gateway configuration with dual WAN ports that function in load balancing mode, the
remote computer client initiates the VPN tunnel with the appropriate gateway WAN port (that
is, 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 selected
gateway WAN port needs to act as the responder.
Figure 277.
The IP addresses of the gateway WAN ports can be either fixed or dynamic. If an IP address
is dynamic, you need to use an FQDN. If an IP address is fixed, an FQDN is optional.