ZyXEL Communications P-2302R Series User Manual

P-2302R Series User’s Guide

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Chapter 12 Network Address Translation (NAT) Screens

Note: Port numbers do not change for One-to-One and Many One-to-One NAT 

mapping types.

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. 

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

Prestige.

Note: Choose Full Feature if you have multiple public WAN IP addresses for your 

Prestige.

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 33   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