Nat Setup; Chapter 28 Nat Setup; Using Nat; Sua (Single User Account) Versus Nat - ZyXEL Communications G.SHDSL.bis 4-port Security Gateway P-793H User Manual

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H A P T E R
Use this menu to configure Network Address Translation (NAT) on the ZyXEL Device.

28.1 Using NAT

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
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.
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.
P-793H User's Guide
28

NAT Setup

Section 28.2.1 on page 281 for a detailed
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