User’s Guide
93
CHAPTER 9
The NAT Configuration Screens
9.1 Overview
Use these screens to configure port forwarding and trigger ports for the WiMAX Modem. You
can also enable and disable SIP, FTP, and H.323 ALG.
Network Address Translation (NAT) maps a host’s IP address within one network to a
different IP address in another network. For example, you can use a NAT router to map one IP
address from your ISP to multiple private IP addresses for the devices in your home network.
9.1.1 What You Can Do in This Chapter
•The General screen (
Section 9.2 on page 93) lets you enable or disable NAT and to
allocate memory for NAT and firewall rules.
•The Port Forwarding screen (
Section 9.3 on page 94) lets you look at the current port-
forwarding rules in the WiMAX Modem, and to enable, disable, activate, and deactivate
each one.
•The Trigger Port screen (
Section 9.4 on page 97) lets you maintain trigger port
forwarding rules for the WiMAX Modem.
•The ALG screen (
Section 9.5 on page 99) lets you enable and disable SIP (VoIP), FTP
(file transfer), and H.323 (audio-visual) ALG in the WiMAX Modem.
9.2 General
Click ADVANCED > NAT Configuration > General to enable or disable NAT and to
allocate memory for NAT and firewall rules.
Figure 50 ADVANCED > NAT Configuration > General
