ZyXEL 202H 91-003-194003B User Manual
Product codes
91-003-194003B
P-202H Plus v2 User’s Guide
67
Chapter 6 Network Address Translation (NAT) Screens
Port numbers do NOT change for One-to-One and Many-to-Many No Overload NAT
mapping types.
mapping types.
The following table summarizes these types.
6.2 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
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
• 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
• Choose Full Feature if you have multiple public WAN IP addresses for your ZyXEL
Device.
6.3 Selecting the NAT Mode
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 NAT to open the following screen.
WAN to be forwarded through the ZyXEL Device. Click NAT to open the following screen.
Table 10 NAT Mapping Types
TYPE
IP MAPPING
SMT ABBREVIATION
One-to-One
ILA1ÅÆ IGA1
1:1
Many-to-One (SUA/PAT)
ILA1ÅÆ IGA1
ILA2ÅÆ IGA1
…
ILA2ÅÆ IGA1
…
M:1
Many-to-Many Overload
ILA1ÅÆ IGA1
ILA2ÅÆ IGA2
ILA3ÅÆ IGA1
ILA4ÅÆ IGA2
…
ILA2ÅÆ IGA2
ILA3ÅÆ IGA1
ILA4ÅÆ IGA2
…
M:M Ov
Many-to-Many No Overload
ILA1ÅÆ IGA1
ILA2ÅÆ IGA2
ILA3ÅÆ IGA3
…
ILA2ÅÆ IGA2
ILA3ÅÆ IGA3
…
M:M No OV
Server
Server 1 IPÅÆ IGA1
Server 2 IPÅÆ IGA1
Server 3 IPÅÆ IGA1
Server 2 IPÅÆ IGA1
Server 3 IPÅÆ IGA1
Server