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USER MANUAL
Peplink Balance Series
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NAT Mapping Settings
LAN
Client(s)
NAT Mapping rules can be defined for a single LAN IP Address, an IP Range, or an IP
Network.
Address
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.
Range
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.
Network
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.
Inbound
Mappings
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 1: Inbound mapping is not needed for WAN connections in drop-in mode or IP
forwarding mode.
Note 2: Each WAN IP address can be associated to one NAT mapping only.
Outbound
Mappings
This setting specifies the WAN IP addresses should be used when an IP connection is
made from a LAN host to the Internet.
Each LAN host in an IP range or IP network will be evenly mapped to one of each
selected WAN's IP addresses (for better IP address utilization) in a persistent manner (for
better application compatibility).
Note 1: If you do not want to use a specific WAN for outgoing accesses, you should still
choose default here, then customize the outbound access rule in the Outbound Policy
section.
Note 2: WAN connections in drop-in mode or IP forwarding mode are not shown here.
Click Save to save the settings when configuration has been completed.
Important Note
Inbound firewall rules override inbound mapping settings.