User's Manual

UTT Technologies Chapter 8 NAT
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the IP addresses or NAT sessions to each EasyIP NAT rule in turn. Then the Device will
effectively control and balance the traffic among multiple Internet connections.
8.3.3 NAT Rule Settings
The following sections describe three types of NAT rules respectively, which include:
EasyIP NAT (see Figure 8-8), One2One NAT (see Figure 8-9), and Passthrough NAT
(see Figure 8-10).
Note
When using multi-NAT (that is, you get multiple public IP addresses from your ISP) on
a WAN interface, you should enable NAT proxy ARP on the interface. The operation
is as follows: Go to the Basic > WAN > WAN List page, click the Edit hyperlink of the
related Internet connection to go to its setup page, click the Advanced Options, and
then select Nat from the Proxy ARP drop-down list, lastly click the Save button.
8.3.3.1 EasyIP NAT Rule Settings
Figure 8-8 EasyIP NAT Rule Settings
 NAT Type: It specifies the type of the NAT rule. The available options are EasyIP,
One2One, and Passthrough. Here please select EasyIP.
 External IP Address: It specifies the external IP address to which the LAN hosts¶ IP
addressed are mapped. A system reserved NAT rule¶s external IP address is 0.0.0.0,
which means that the rule will use the related WAN interface¶s IP address as its