What is NAT and how does it protect my network? Network Address Translation (NAT) is a level of security, which masks the private IP addresses of the PCs on your network with a single public IP address. With NAT, the private IP address of any PC on your network is never transmitted over the Internet.
If my DSL Modem act as a firewall? Yes. The DSL Modem provides security through the NAT firewall, which acts as a physical barrier between your network and the Internet.

To resolve this issue:
1. Disable the NAT interface within the DSL/Modem interface via web browser.
2. Disable the Firewall completely in the DSL/Modem interface via web browser.
3. Unplug your DSL/Modem and power down the NetMAX server and then power up the DSL/Modem and then the NetMAX server.
4. If you haven’t already login into the NetMAX interface and go to Home/Network/Interfaces/Eth (WAN) and select NAT option store and commit.

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