ZyXEL Communications NBG410W3G - Manual (Page 230)

Chapter 12 Network Address Translation (NAT)
NBG410W3G Series User’s Guide
230
The following table summarizes the NAT mapping types.
12.2 Using NAT
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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.
12.2.1 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-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. Select either SUA or Full Feature in NAT Overview.
Selecting SUA means (latent) multiple WAN-to-LAN and WAN-to-DMZ address translation.
That means that computers on your DMZ with public IP addresses will still have to undergo
NAT mapping if you’re using SUA NAT mapping. If this is not your intention, then select
Full Feature NAT and don’t configure NAT mapping rules to those computers with public IP
addresses on the DMZ.
12.3 NAT Overview Screen
Click ADVANCED > NAT to open the NAT Overview screen.
Table 66 NAT Mapping Types
TYPE IP MAPPING
One-to-One ILA1 IJ IGA1
Many-to-One (SUA/PAT) ILA1 IJ IGA1
ILA2 IJ IGA1
…
Many-to-Many Overload ILA IJ IGA1
ILA2 IJ IGA2
ILA3 IJ IGA1
ILA4 IJ IGA2
…
Many-One-to-One ILA1 IJ IGA1
ILA2 IJ IGA2
ILA3 IJ IGA3
…
Server Server 1 IP IJ IGA1
Server 2 IP IJ IGA1
Server 3 IP IJ IGA1