NAT mapping rules can be defined for a single LAN IP Address, an IP Range, or an IP
Network.
This refers to the LAN host’s private IP address. The system maps this address to a
number of public IP addresses (specified below) in order to facilitate inbound and
outbound traffic. This option is only available when IP Address is selected.
The IP range is a contiguous group of private IP addresses used by the LAN host. The
system maps these addresses to a number of public IP addresses (specified below) to
facilitate outbound traffic. This option is only available when IP Range is selected.
The IP network refers to all private IP addresses and ranges managed by the LAN host.
The system maps these addresses to a number of public IP addresses (specified below)
to facilitate outbound traffic. This option is only available when IP Network is selected.
This setting specifies the WAN connections and corresponding WAN-specific Internet IP
addresses on which the system should bind. Any access to the specified WAN
connection(s) and IP address(es) will be forwarded to the LAN host. This option is only
available when IP Address is selected in the LAN Client(s) field.
Note that inbound mapping is not needed for WAN connections in drop-in mode or IP
forwarding mode. Also note that each WAN IP address can be associated to one NAT
mapping only.
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