ZyXEL Communications P-660H-D Series - Manual (Page 86)

P-660R/H-D Series User’s Guide
85 Chapter 7 Network Address Translation (NAT) Screens
Port numbers do NOT change for One-to-One and Many-to-Many No Overload NAT
mapping types.
The following table summarizes these types.
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-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 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.
7.3 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.
Table 20 NAT Mapping Types
TYPE IP MAPPING SMT ABBREVIATION
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 O+
Many-to-Many No Overload ILA1ÅÆ IGA1
ILA2ÅÆ IGA2
ILA3ÅÆ IGA3
… M-M N+
Server Server 1 IPÅÆ IGA1
Server 2 IPÅÆ IGA1
Server 3 IPÅÆ IGA1 Server+