Port Forwarding; The Nat General Setup Screen - ZyXEL Communications AMG1202-T10A User Manual

Chapter 9 Network Address Translation (NAT)

Port Forwarding

A port forwarding 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 NAT makes your whole inside network
appear as a single computer to the outside world.
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
• 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.
Finding Out More
See Section 9.6 on page 135

9.2 The NAT General Setup Screen

Use this screen to activate NAT. Click Network > NAT to open the following screen.
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 ZyXEL Device.
Figure 64 Network > NAT > General
The following table describes the labels in this screen.
Table 41 Network > NAT > General
LABEL
Active Network
Address
Translation
SUA Only
128
Table 48 on page
for advanced technical information on NAT.
DESCRIPTION
Select this check box to enable NAT.
Select this radio button if you have just one public WAN IP address for your
ZyXEL Device.
138.
AMG1202-T10A User's Guide