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

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Select Network Config > WAN Settings > WAN Mode. The WAN Mode screen 
displays (see 

In the NAT (Network Address Translation) section of the screen, select the NAT radio button.

Click Apply to save your settings.

Configure Classical Routing

In classical routing mode, the UTM9S performs routing, but without NAT. To gain Internet 
access, each PC 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 PC, 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 

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Select Network Config > WAN Settings > WAN Mode. The WAN Mode screen 
displays (see 

In the NAT (Network Address Translation) section of the screen, select the Classical 
Routing radio button.

Click Apply to save your settings.

Configure Auto-Rollover Mode and the Failure Detection 

Method

To use a redundant ISP link for backup purposes, ensure that the backup DSL or WAN 
interface has already been configured. Then select the DSL or WAN interface that should 
function as the primary link for this mode, and configure the WAN failure detection method on 
the WAN Mode screen to support auto-rollover.

When the UTM9S is configured in auto-rollover mode, it uses the selected WAN failure 
detection method to detect the status of the primary link connection at regular intervals. Link 
failure is detected in one of the following ways:

DNS queries sent to a DNS server

Ping request sent to an IP address