Enable NAT Loopback – Checking this option will allow
devices to resolve the additional public static IP addresses
from the local interfaces (e.g. LAN, VLAN). Unchecking this
option will not allow to devices to resolve the additional
public static IP addresses from the local interfaces. (e.g. LAN,
VLAN)
Schedule – Allows you to select a schedule when the port
forwarding rule should be enabled or disabled.