Prestige 334 User’s Guide

The following table summarizes these types.

Table 22 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 Ov

 

ILA2ÅÆ IGA2

 

 

ILA3ÅÆ IGA1

 

 

ILA4ÅÆ IGA2

 

 

…

 

 

 

 

Many One-to-One

ILA1ÅÆ IGA1

M-1-1

 

ILA2ÅÆ IGA2

 

 

ILA3ÅÆ IGA3

 

 

…

 

 

 

 

Server

Server 1 IPÅÆ IGA1

Server

 

Server 2 IPÅÆ IGA1

 

 

Server 3 IPÅÆ IGA1

 

 

 

 

7.2 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 Prestige.

7.2.1 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-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. Select either SUA Only or Full Feature in the WAN IP screen.

7.3 SUA 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.

Chapter 7 Network Address Translation (NAT) Screens

90