ZyXEL Communications P-792H v3 - The NAT General Setup Screen

Chapter 9 Network Address Translation (NAT)
P-79X Series User’s Guide
88
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 P-79X 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 34 on page 98.
• Choose SUA Only if you have just one public WAN IP address for your P-79X.
• Choose Full Feature if you have multiple public WAN IP addresses for your P-79X.
Finding Out More
See Section 9.6 on page 95 for advanced technical information on NAT.
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 P-79X.
Figure 50 Network > NAT > General
The following table describes the labels in this screen.
Table 27 Network > NAT > General
LABEL DESCRIPTION
Active Network
Address
Translation (NAT)
Select this check box to enable NAT.
SUA Only Select this radio button if you have just one public WAN IP address for your P-
79X.
Full Feature Select this radio button if you have multiple public WAN IP addresses for your P-
79X.