This chapter covers the services provided by Untangle to allow you to get the full utilization of multiple Internet connections. With Untangle WAN services, you can use multiple cheap ADSL lines instead of one expensive leased line, which, when goes down, will disconnect you from the Internet.

WAN Failover allows you to use multiple WAN interfaces and get a continuous Internet connection. It detects disconnected interfaces and redirects their traffic to another available interface. WAN Balancer allows you to maximize bandwidth utilization by distributing your network traffic among multiple WAN interfaces.

WAN Balancer has some dependencies on the WAN Failover; thus, Untangle offers WAN Failover with no additional charge for the purchases of the WAN Balancer.

To utilize the functionality of multiple WAN interfaces, your Untangle NGFW internal interface should be in addressed mode and not bridged mode.

A list of topics that will be covered in this chapter are...