multipleWAN

Multiple WAN (MWAN)

The Multiple WAN (MWAN) feature allows the administrator to configure all but one of the appliance's interface for WAN network routing (one interface must remain configured for the LAN zone for local administration). All of the WAN interfaces can be probed using the SNWL Global Responder host.

Network Interfaces

The Network Interfaces page allows more than two WAN interfaces to be configured for routing. It is possible to configure WAN interfaces in the Network Interfaces page, but not include them in the Failover & LB. Only the Primary WAN Ethernet Interface is required to be part of the LB group whenever LB has been enabled. Any WAN interface that does not belong to the LB group is not included in the LB function, but performs normal WAN routing functions.

Note

A virtual WAN interface may belong to the LB group. However, prior to using within the LB group, please ensure that the virtual WAN network is fully routable like that of a physical WAN.

Routing the Default & Secondary Default Gateways

Because the gateway address objects previously associated with the Primary WAN and Secondary WAN are now deprecated, user-configured Static Routes need to be re-created in order to use the correct gateway address objects associated with the WAN interfaces. This will have to be configured manually as part of the firmware upgrade procedure.

The old address object Default Gateway corresponds to the default gateway associated with the Primary WAN in the LB group. The Secondary Default Gateway corresponds to the default gateway associated with Alternate WAN #1.

Note

After re-adding the routes, delete the old ones referring to the Default and Secondary Default Gateways.

DNS

When DNS name resolution issues are encountered with this firmware, you may need to select the Specify DNS Servers Manually option and set the servers to Public DNS Servers (ICANN or non-ICANN).

Note

Depending on your location, some DNS Servers may respond faster than others. Verify that these servers work correctly from your installation prior to using your SonicWALL appliance.