UTT N518W Manual page 79

UTT Technologies
Figure 7-9 Network Topology for One2One NAT Rule Configuration Example
The business employees will share a single public IP address of 202.1.1.130/29 to
access the Internet. The LAN's subnet number is 192.168.16.0, and subnet mask is
255.255.255.0. And the business wants to use the remaining four public IP addresses
(from 202.1.1.131/29 to 202.1.1.134/29) to create a One2One rule for the four local
servers, then the outside users can use these public addresses to access the local
servers through the Device. The four local servers IP addresses are from
192.168.16.200/24 to 192.168.16.203/24, which are mapped to 202.1.1.131/29,
202.1.1.132/29, 202.1.1.133/29, 202.1.1.134/29 respectively.
2) Analysis
Firstly we need to configure a static IP Internet connection on the WAN1 interface in
the Basic > WAN page or through the Setup Wizard. After you have configured the
Internet connection, the Device will automatically create a related system reserved
NAT rule, and also enable NAT.
Secondly, we need to create a One2One NAT rule for the four local servers. After you
have configured this rule, the Device will automatically create the related static route.
3) Configuration Procedure
The configuration steps are as following:
Go to the Advanced > NAT & DMZ > NAT Rule page, and click the Add
Step 1
button to go to the setup page.
Enter the name of this NAT rule entry in the Rule name text box and select
Step 2
One2One from the NAT Type drop-down list, see the following figure.
http://www.uttglobal.com
Advanced Menu
Page 72