Inbound Traffic To A Single Wan Port System; Inbound Traffic To A Dual Wan Port System - NETGEAR UTM9S Reference Manual

ProSecure Unified Threat Management (UTM) Appliance

Inbound Traffic to a Single WAN Port System

The Internet IP address of the UTM's WAN port needs to be known to the public so that the
public can send incoming traffic to the exposed host when this feature is supported and
enabled.
In the single WAN case, the WAN's Internet address is either fixed IP or an FQDN if the IP
address is dynamic.
Figure 328.

Inbound Traffic to a Dual WAN Port System

The IP address range of the UTM's WAN port needs to be both fixed and public so that the
public can send incoming traffic to the multiple exposed hosts when this feature is supported
and enabled.
Inbound Traffic: Dual WAN Ports for Improved Reliability
In a dual WAN port auto-rollover configuration, the WAN port's IP address will always change
when a rollover occurs. You need to use an FQDN that toggles between the IP addresses of
the WAN ports (that is, WAN1 or WAN2).
Figure 329.
Inbound Traffic: Dual WAN Ports for Load Balancing
In a dual WAN port load-balancing configuration, the Internet address of each WAN port is
either fixed if the IP address is fixed or an FQDN if the IP address is dynamic (see the
following figure).
Network Planning for Dual WAN Ports (Multiple WAN Port Models Only)
562