Basic concepts

In networking, load balancing is designed to distribute workloads across multiple network resources. Load balancing in pfSense is of two types: gateway load balancing and server load balancing:

  • The purpose of gateway load balancing is to distribute Internet-bound traffic over more than one WAN interface. Thus, the configuration is separate from server load balancing, and is done by configuring gateway groups by navigating to System | Routing and clicking on the Gateway Groups tab.
  • The purpose of server load balancing is to distribute traffic among multiple internal servers. In some cases, we may also want to have redundant servers available for failover, and this is supported in pfSense as well.

There are two broad methods of achieving ...

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