User's Manual

UTT Technologies Chapter 8 NAT
http://www.uttglobal.com Page 224
Figure 8-15 Network Topology for Passthrough NAT Rule Configuration Example
2. Analysis
Firstly we need configure a static IP Internet connection on the WAN1 interface in the
Basic > WAN page or through the Quick Wizard. After you have configured the Internet
connection, the Device will automatically create the related system reserved NAT rule,
and also enable NAT.
Secondly, in order to make the opened local servers be routed directly, we need connect
the servers to the Device¶s WAN2 interface over a switch, set the WAN2 interface IP
address to 202.96.100.1/27, set each server¶s IP address to an IP address in the range of
202.96.100.2/27 through 202.96.100.30/27, and set each server¶s default gateway IP
address to 202.96.100.1/27.
Lastly, we need to create a Passthrough NAT rule for the opened local servers.
3. Configuration Procedure
Here we only describe how to create the Passthrough NAT rule.
The configuration steps are the following:
Step 1 Go to the NAT > NAT Rule page, and select the NAT Rule Settings tab to go to
the setup page.
Step 2 Select Passthrough from the NAT Type drop-down list, see the following
figure.