Network Address Translation (Nat); Using Nat; Sua (Single User Account) Versus Nat; Applying Nat - ZyXEL Communications ZyAir G-2000 PlusV2 User Manual

Network Address Translation
This chapter discusses how to configure NAT on the ZyXEL device.

27.1 Using NAT

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

27.1.1 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. See section Address Mapping Sets for a
detailed description of the NAT set for SUA. 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.
Note: 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.

27.2 Applying NAT

You apply NAT via menus 4 or 11.3 as displayed next. The next figure shows you how to
apply NAT for Internet access in menu 4. Enter 4 from the main menu to go to Menu 4 -
Internet Access Setup.
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