ZyXEL Communications P-2802H-I Series, User Manual

Page: 120 / 418

Chapter 9 Network Address Translation (NAT) Screens
P-2802H(W)(L)-I Series User’s Guide
120
The following table summarizes these types.
9.2 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 ZyXEL Device 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 39 on page 120 .
• Choose SUA Only if you have just one public WAN IP address for your ZyXEL Device.
• Choose Full Feature if you have multiple public WAN IP addresses for your ZyXEL
Device.
9.3 NAT General Setup
"
You must create a firewall rule in addition to setting up SUA/NAT, to allow
traffic from the WAN to be forwarded through the ZyXEL Device.
Click Network > NAT to open the following screen.
Table 39 NAT Mapping Types
TYPE IP MAPPING
One-to-One ILA1 ÅÆ IGA1
Many-to-One (SUA/PAT) ILA1 ÅÆ IGA1
ILA2 ÅÆ IGA1
…
Many-to-Many Overload ILA1 ÅÆ IGA1
ILA2 ÅÆ IGA2
ILA3 ÅÆ IGA1
ILA4 ÅÆ IGA2
…
Many-to-Many No Overload ILA1 ÅÆ IGA1
ILA2 ÅÆ IGA2
ILA3 ÅÆ IGA3
…
Server Server 1 IP ÅÆ IGA1
Server 2 IP ÅÆ IGA1
Server 3 IP ÅÆ IGA1