ProSecure Unified Threat Management (UTM) Appliance

Configure the WAN Mode

Overview of the WAN Modes

Configure Network Address Translation (All Models)

Configure Classical Routing (All Models)

Configure Auto-Rollover Mode and the Failure Detection Method (Multiple WAN Port Models)

Configure Load Balancing and Optional Protocol Binding (Multiple WAN Port Models)

Overview of the WAN Modes

For the multiple WAN port models, the UTM can be configured on a mutually exclusive basis for either auto-rollover (for increased system reliability) or load balancing (for maximum bandwidth efficiency). If you do not select load balancing, you need to specify one WAN interface as the primary interface.

Note: For the UTM9S and UTM25S only, you can also use a DSL or USB interface for load balancing mode, primary WAN mode, and auto-rollover mode. However, in auto-rollover mode, a USB interface can function only as a rollover interface.

For information about how to configure the DSL WAN interface, see

Appendix A, xDSL Network Module for the UTM9S and UTM25S.

For information about how to configure the USB WAN interface, see

Appendix C, 3G/4G Dongles for the UTM9S and UTM25S.

Load balancing mode. The UTM distributes the outbound traffic equally among the WAN interfaces that are functional. Depending on the UTM model, you can configure up to four WAN interfaces. The UTM supports weighted load balancing and round-robin load balancing (see Configure Load Balancing and Optional Protocol Binding (Multiple WAN Port Models) on page 85).

Note: Scenarios could arise when load balancing needs to be bypassed for certain traffic or applications. If certain traffic needs to travel on a specific WAN interface, configure protocol binding rules for that WAN interface. The rule should match the desired traffic.

Primary WAN mode. The selected WAN interface is made the primary interface. The other interfaces are disabled.

Auto-rollover mode. A WAN interface is defined as the primary link, and another interface needs to be defined as the rollover link. If the UTM model has more than two

Manually Configure Internet and WAN Settings

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NETGEAR UTM5EW-100NAS, STM150EW-100NAS manual Configure the WAN Mode, Overview of the WAN Modes