Chapter 5. Nat Setup; Introduction; Settings - Draytek Vigor 2200VG User Manual

5.1 Introduction

NAT is a method of mapping one or more IP addresses and/or service
ports into different specified services, where NAT stands for Network
Address Translation.
computers on a Local Area Network (LAN) to be translated to one public
address, saving users' cost. It also plays a security role by obscuring the
true IP addresses of important machines from potential hackers on the
Internet. For convenience, we called a router having the NAT facility as a
NAT-enabled router.
Usually you will use your Vigor router as a NAT-enabled router.
NAT-enabled router gets one globally re-routable IP address from the ISP
and assigns private network IP addresses defined by RFC-1918 to local
hosts. The NAT-enable router translates the private network IP addresses
to such a globally routable IP address so that local hosts can communicate
with the router and access the Internet.

5.2 Settings

Click NAT Setup to open the setup page.
It allows the internal IP addresses of many
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Vigor2200V series
Chapter 5
NAT Setup
The