Use the Networking > Zones page to configure a security zone, which is a group of interfaces to which a security policy can be applied. The interfaces in a zone share common functions or features. For example, two interfaces that are connected to the local LAN might be placed in one security zone, and the interfaces connected to the Internet might be placed in another security zone.
The interfaces are IP-based interfaces (VLANs, WAN1, WAN2, and so forth). Each interface can only join one zone, but each zone with specific security level can have multiple interfaces.
Refer to the following topics:
Note We recommend that you configure the zones before you configure WAN, VLAN, DMZ, zone-based firewall, and security services.