TP-Link TL-ER6020 3.3.1.2 One-to-One NAT

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The following items are displayed on this screen:
 NAPT
Source Port Range: Enter the source port range between 2049 and 65000, the span of which
must be not less than 100.
 NAT-DMZ
NAT-DMZ: Enable or disable NAT-DMZ. NAT DMZ is a special service of NAT
application, which can be considered as a default forwarding rule. When
NAT DMZ (Pseudo DMZ) is enabled, all the data initiated by external
network falling short of the current connections or forwarding rules will be
forwarded to the preset NAT DMZ host.
Host IP Address: Enter the IP address of the host specified as NAT DMZ server.
3.3.1.2 One-to-One NAT
On this page, you can configure the One-to-One NAT.
Choose the menu Advanced→NAT→One-to-One NAT to load the following page.
Figure 3-30 One to One NAT
The following items are displayed on this screen:
 One-to-One NAT
Mapping IP Address: Enter the Original IP Address in the first checkbox and Translated
IP Address in the second checkbox. TL-ER6020 allows mapping from LAN
port to WAN port and DMZ in LAN Mode.