Using Nat; Table 9-3 Nat Mapping Types - ZyXEL Communications ZyWall 10W User Manual

Server: This type allows you to specify inside servers of different services behind the NAT to be
accessible to the outside world although, it is highly recommended that you use the DMZ port for
these servers instead.
Port numbers do not change for One-to-One and Many-One-to-One NAT mapping
The following table summarizes these types.
TYPE
One-to-One
Many-to-One (SUA/PAT)
Many-to-Many Overload
Many-One-to-One
Server
9.2

Using NAT

You must create a firewall rule in addition to setting up SUA/NAT, to allow traffic
9.2.1 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. The ZyWALL also supports Full Feature NAT to map multiple global
NAT Screens

Table 9-3 NAT Mapping Types

Server 1 IP
Server 2 IP
Server 3 IP
from the WAN to be forwarded through the ZyWALL.
ZyWALL Series Internet Security Gateway
types.
IP MAPPING
ILA1 IGA1
ILA1 IGA1
ILA2 IGA1
...
ILA1 IGA1
ILA2 IGA2
ILA3 IGA1
ILA4 IGA2
...
ILA1 IGA1
ILA2 IGA2
ILA3 IGA3
...
IGA1
IGA1
IGA1
SMT ABBREVIATION
1-1
M-1
M-M Ov
M-1-1
Server
9-5