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Nat setup, 1 using nat, 1 sua (single user account) versus nat – ZyXEL Communications G.SHDSL.bis 4-port Security Gateway P-793H User Manual

Page 283: 2 applying nat, Chapter 28 nat setup

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P-793H User’s Guide

Chapter 28 NAT Setup

283

C

H A P T E R

28

NAT Setup

Use this menu to configure Network Address Translation (NAT) on the ZyXEL Device.

28.1 Using NAT

Note: You must create a firewall rule in addition to setting up SUA/NAT, to allow

traffic from the WAN to be forwarded through the ZyXEL Device.

28.1.1 SUA (Single User Account) Versus NAT

SUA (Single User Account) is a ZyNOS implementation of a subset of NAT that supports two
types of mapping, Many-to-One and Server. See

Section 28.2.1 on page 285

for a detailed

description of the NAT set for SUA. The ZyXEL Device also supports Full Feature NAT to
map multiple global IP addresses to multiple private LAN IP addresses of clients or servers
using mapping types.

Note: Choose SUA Only if you have just one public WAN IP address for your ZyXEL

Device.

Choose Full Feature if you have multiple public WAN IP addresses for your
ZyXEL Device.

28.1.2 Applying NAT

You apply NAT via menus 4 or 11.3 as displayed next. The next figure shows you how to
apply NAT for Internet access in menu 4. Enter 4 from the main menu to go to Menu 4 -
Internet Access Setup
.