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80 CHAPTER 5: ROUTER CONFIGURATION
To configure NAT, and IPSec NAT-T Pass-through:
1 Select Advanced from the main menu. The Advanced screen displays
(Figure 55
).
Figure 55 Advanced
2 To disable NAT, select the OFF radio button.
3Com recommends that you leave NAT enabled for maximum security.
3 To enable IPSec NAT-T Pass-through, select the On radio button.
4 If required, continue configuring advanced options on this screen, or click
Apply to save the settings.
Universal Plug and
Play
Universal Plug and Play is a technology that offers seamless operation of
voice messaging, video messaging, games, and other applications that
are Universal Plug and Play compliant. Some applications require the
Router's firewall to be configured in a specific way to operate properly.
This usually requires opening TCP and UDP ports and in some instances
setting trigger ports. An application that is Universal Plug and Play
compliant has the ability to communicate with the Router, basically
"telling" the Router which way it needs the firewall configured. The
Router ships with the Universal Plug and Play feature disabled. If you