Grouping interfaces and VLAN subinterfaces into zones simplifies policy
creation, allowing faster creation of policy and firewall rules. Configure policies
for
connections to and from a zone, but not between interfaces in a zone. Add zones, rename
and edit zones, and delete zones from the zone list. When adding a zone, select the
names of
the interfaces and VLAN subinterfaces to add to the zone.
Zones are configured from physical network adapters.