A Virtual Local Area Network (VLAN) allows you to split your physical network connections (X2, X3, etc...) into many virtual network connection, each carrying its own set of configurations. The VLAN solution allows each VAP to have its own separate subinterface on an actual physical interface.
VLAN subinterfaces have most of the capabilities and characteristics of a physical interface, including zone assignability, security services, WAN assignability (static addressing only), GroupVPN, DHCP server, IP Helper, routing, and full NAT policy and Access Rule controls. Features excluded from VLAN subinterfaces at this time are VPN policy binding, WAN dynamic client support, and multicast support.
VLAN subinterfaces are configured from the Network > Interfaces page; see Network > Interfaces.
The table below lists configuration parameters and descriptions for VLAN subinterfaces: