ZyXEL Communications ZyXEL ZyWALL 35 - Manual (Page 471)

ZyWALL 35 User’s Guide
Chapter 34 Network Address Translation (NAT) 469
C
H A P T E R
34
Network Address Translation
(NAT)
This chapter discusses how to configure NAT on the ZyWALL.
34.1 Using NAT
34.1.1 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
the Address Mapping Sets section for a
detailed description of the NAT set for SUA. The ZyWALL also supports Full Feature NAT
to map multiple global IP addresses to multiple private LAN IP addresses of clients or servers
using mapping types.
34.1.2 Applying NAT
You apply NAT via menus 4 or 11.1.2 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.
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 ZyWALL.
Note: Choose SUA Only if you have just one public WAN IP
address for your ZyWALL.
Note: Choose Full Feature if you have multiple public WAN IP
addresses for your ZyWALL.