Netgear UTM9S – ProSECURE Unified Threat Management (UTM) Appliance with DSL and Wireless modules Manual De Referência

Features such as multiple exposed hosts are not supported in auto-rollover mode 
because the IP address of each WAN port needs to be in the identical range of fixed 
addresses.

Dual WAN ports in load balancing mode. Load balancing for a UTM with dual WAN 

ports is similar to a single WAN gateway configuration when you specify the IP address. 
Each IP address is either fixed or dynamic based on the ISP: You need to use FQDNs 
when the IP address is dynamic, but FQDNs are optional when the IP address is static. 

Inbound Traffic

Incoming traffic from the Internet is usually discarded by the UTM unless the traffic is a 
response to one of your local computers or a service for which you have configured an 
inbound rule. Instead of discarding this traffic, you can configure the UTM to forward it to one 
or more LAN hosts on your network.

The addressing of the UTM’s dual WAN port depends on the configuration being 
implemented.

Inbound traffic

• Port forwarding

• Port triggering

Fixed

Allowed
(FQDN optional)

FQDN required

Allowed
(FQDN optional)

Dynamic

FQDN required

FQDN required

FQDN required