ZyXEL p-334 Manual Do Utilizador

Prestige 334 User’s Guide

Chapter 7 Network Address Translation (NAT) Screens

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The following table summarizes these types.

SUA (Single User Account) is a ZyNOS implementation of a subset of NAT that supports two 
types of mapping, Many-to-One and Server. The Prestige also supports Full Feature NAT to 
map multiple global IP addresses to multiple private LAN IP addresses of clients or servers 
using mapping types. Select either SUA Only or Full Feature in the WAN IP screen. 

A SUA server set is a list of inside (behind NAT on the LAN) servers, for example, web or 
FTP, that you can make visible to the outside world even though SUA makes your whole 
inside network appear as a single computer to the outside world. 

Table 22   NAT Mapping Types

One-to-One

ILA1ÅÆ IGA1

1-1

Many-to-One (SUA/PAT)

ILA1ÅÆ IGA1
ILA2ÅÆ IGA1
…

M-1

Many-to-Many Overload

ILA1ÅÆ IGA1
ILA2ÅÆ IGA2
ILA3ÅÆ IGA1
ILA4ÅÆ IGA2
…

M-M Ov

Many One-to-One

ILA1ÅÆ IGA1
ILA2ÅÆ IGA2
ILA3ÅÆ IGA3
…

M-1-1

Server

Server 1 IPÅÆ IGA1
Server 2 IPÅÆ IGA1
Server 3 IPÅÆ IGA1

Server

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 Prestige.