Netgear SRX5308 Specifications Page 314

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Network Planning for Multiple WAN Ports
314
ProSafe Gigabit Quad WAN SSL VPN Firewall SRX5308
Dual WAN ports in auto-rollover mode. A dual WAN port auto-rollover gateway
configuration is different from a single WAN port gateway configuration when you specify
the IP address of the VPN tunnel endpoint. Only one WAN port is active at a time, and
when it rolls over, the IP address of the active WAN port always changes. Therefore, the
use of an FQDN is always required, even when the IP address of each WAN port is fixed.
Note: When the VPN firewall’s WAN port rolls over, the VPN tunnel
collapses and needs to be reestablished using the new WAN IP
address. However, you can configure automatic IPSec VPN rollover
to ensure that an IPSec VPN tunnel is reestablished.
Figure 188. f
Dual WAN ports in load balancing mode. A dual WAN port load balancing gateway
configuration is the same as a single WAN port configuration when you specify the IP
address of the VPN tunnel endpoint. Each IP address is either fixed or dynamic based on
the ISP: You need to use FQDNs when the IP address is dynamic, and FQDNs are
optional when the IP address is static.
Figure 189.
VPN Road Warrior (Client-to-Gateway)
The following situations exemplify the requirements for a remote PC client with no firewall to
establish a VPN tunnel with a gateway VPN firewall such as an VPN firewall:
Single-gateway WAN port
Redundant dual-gateway WAN ports for increased reliability (before and after rollover)
Dual-gateway WAN ports for load balancing
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