ZyXEL Communications 5 Series Manuale Utente
Chapter 22 Network Address Translation (NAT)
ZyWALL 5/35/70 Series User’s Guide
436
The following table summarizes the NAT mapping types.
"
Port numbers do not change for One-to-One and Many-One-to-One NAT
mapping types.
mapping types.
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 ZyWALL also supports Full Feature NAT
to map multiple global IP addresses to multiple private LAN IP addresses on your network.
types of mapping: Many-to-One and Server. The ZyWALL also supports Full Feature NAT
to map multiple global IP addresses to multiple private LAN IP addresses on your network.
When you select SUA, WAN-to-LAN and WAN-to-DMZ address translation is performed. If
you want (some) computers on your DMZ to have public IP addresses, then select Full
Feature (not SUA) and don’t configure NAT mapping rules to those computers with public IP
addresses on the DMZ.
you want (some) computers on your DMZ to have public IP addresses, then select Full
Feature (not SUA) and don’t configure NAT mapping rules to those computers with public IP
addresses on the DMZ.
22.1.3 Before You Begin
You must create a firewall rule in addition to setting up SUA/NAT, if you want to allow traffic
originating from the WAN to be forwarded through the ZyWALL.
originating from the WAN to be forwarded through the ZyWALL.
22.2 The NAT Overview Screen
Click ADVANCED > NAT to open the NAT Overview screen.
Table 129 NAT Mapping Types
TYPE
IP MAPPING
SMT ABBREVIATION
One-to-One
ILA1
IJ IGA1
1-1
Many-to-One (SUA/PAT)
ILA1
IJ IGA1
ILA2
IJ IGA1
…
M-1
Many-to-Many Overload
ILA
IJ IGA1
ILA2
IJ IGA2
ILA3
IJ IGA1
ILA4
IJ IGA2
…
M-M Ov
Many-One-to-One
ILA1
IJ IGA1
ILA2
IJ IGA2
ILA3
IJ IGA3
…
M-1-1
Server
Server 1 IP
IJ IGA1
Server 2 IP
IJ IGA1
Server 3 IP
IJ IGA1
Server