Netgear SRX5308 User Manual Page 29

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IPv4 and IPv6 Internet and WAN Settings
29
ProSafe Gigabit Quad WAN SSL VPN Firewall SRX5308
Note the following about NAT:
The VPN firewall uses NAT to select the correct computer (on your LAN) to receive any
incoming data.
I
f you have only a single public Internet IP address, you need to use NAT (the default
setting).
I
f your ISP has provided you with multiple public IP addresses, you can use one address
as the primary shared address for Internet access by your computers, and you can map
incoming traffic on the other public IP addresses to specific computers on your LAN. This
one-to-one inbound mapping is configured using an inbound firewall rule.
Classical Routing
In classical routing mode, the VPN firewall performs routing, but without NAT. To gain Internet
access, each computer on your LAN needs to have a valid static Internet IP address.
If your ISP has allocated a number of static IP addresses to you, and you have assigned one
of these addresses to each computer, you can choose classical routing. Or you can use
classical routing for routing private IP addresses within a campus environment.
To view the status of the WAN ports, you can view the Router Status screen (see View the
System Status on page 361).
Configure the IPv4 Routing Mode
To configure the IPv4 routing mode:
1. Select Network Configu
ration > WAN Settings > WAN Mode. The WAN Mode screen
displays:
Figure 10.
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