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Interface Types and Configuration

pfSense® software supports numerous types of network interfaces, either using physical interfaces directly or by employing other protocols such as PPP or VLANs.

Interface assignments and the creation of new virtual interfaces are all handled under Interfaces > (assign).

Physical and Virtual Interfaces

Most interfaces discussed in this chapter can be assigned as WAN, LAN, or an OPT interface under Interfaces > (assign). All currently-defined and detected interfaces are listed directly on Interfaces > (assign) or in the list of interfaces available for assignment. By default, this list includes only the physical interfaces, but the other tabs under Interfaces > (assign) can create virtual interfaces which can then be assigned.

Interfaces on pfSense support various combinations of options on the interfaces themselves. They can also support multiple networks and protocols on a single interface, or multiple interfaces can be bound together into a larger capacity or redundant virtual interface.

All interfaces are treated equally; Every interface can be configured for any type of connectivity or role. The default WAN and LAN interfaces can be renamed and used in other ways.

Physical interfaces and virtual interfaces are treated the same once assigned, and have the same capabilities. For example, a VLAN interface can have the same type of configuration that a physical interface can have. Some interface types receive special handling once assigned, which are covered in their respective sections of this chapter.

This section covers the various types of interfaces that can be created, assigned, and managed.