Sua (Single User Account) Versus Nat; Table 9-2 Nat Mapping Types - ZyXEL Communications Prestige 652H series User Manual

Prestige 652H/HW Series User's Guide
3. Many to Many Overload: In Many-to-Many Overload mode, the Prestige maps the multiple local IP
addresses to shared global IP addresses.
4. Many-to-Many No Overload: In Many-to-Many No Overload mode, the Prestige maps each local IP
address to a unique global IP address.
5. 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-to-Many No Overload NAT
The following table summarizes these types.
One-to-One
Many-to-One (SUA/PAT)
Many-to-Many Overload
Many-to-Many No Overload
Server
9.2

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 Prestige also supports Full Feature NAT to map multiple global
9-4
mapping types.

Table 9-2 NAT Mapping Types

TYPE
ILA1
ILA1
ILA2
...
ILA1
ILA2
ILA3
ILA4
...
ILA1
ILA2
ILA3
...
Server 1 IP
Server 2 IP
Server 3 IP
IP MAPPING SMT ABBREVIATION
IGA1
IGA1
IGA1
IGA1
IGA2
IGA1
IGA2
IGA1
IGA2
IGA3
IGA1
IGA1
IGA1
1:1
M:1
M:M Ov
M:M No OV
Server
NAT