P-660R/H-D Series User’s Guide

Port numbers do NOT change for One-to-One and Many-to-Many No Overload NAT mapping types.

The following table summarizes these types.

Table 20 NAT Mapping Types

TYPE

IP MAPPING

SMT ABBREVIATION

 

 

 

One-to-One

ILA1ÅÆ IGA1

1-1

 

 

 

Many-to-One (SUA/PAT)

ILA1ÅÆ IGA1

M-1

 

ILA2ÅÆ IGA1

 

 

…

 

 

 

 

Many-to-Many Overload

ILA1ÅÆ IGA1

M-M O+

 

ILA2ÅÆ IGA2

 

 

ILA3ÅÆ IGA1

 

 

ILA4ÅÆ IGA2

 

 

…

 

 

 

 

Many-to-Many No Overload

ILA1ÅÆ IGA1

M-M N+

 

ILA2ÅÆ IGA2

 

 

ILA3ÅÆ IGA3

 

 

…

 

 

 

 

Server

Server 1 IPÅÆ IGA1

Server+

 

Server 2 IPÅÆ IGA1

 

 

Server 3 IPÅÆ IGA1

 

 

 

 

7.2 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-Oneand 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 as outlined in Table 20 on page 85.

•Choose SUA Only if you have just one public WAN IP address for your Prestige.

•Choose Full Feature if you have multiple public WAN IP addresses for your Prestige.

7.3SUA Server

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.

85

Chapter 7 Network Address Translation (NAT) Screens