ZyXEL Communications P-334WT Support Notes page 64

2. Many to One
In Many-to-One mode, the P-334WT maps multiple ILA to one IGA. This is equivalent to
SUA (i.e., PAT, port address translation), ZyXEL's Single User Account feature that
previous ZyNOS routers supported (the SUA only option in today's routers).
3. Many to Many Overload
In Many-to-Many Overload mode, the P-334WT maps the multiple ILA to shared IGA.
4. Many to Many No Overload
In Many-to-Many No Overload mode, the P-334WT maps each ILA to unique IGA.
5. Server
In Server mode, the P-334WT maps multiple inside servers to one global IP address. This
allows us to specify multiple servers of different types behind the NAT for outside access.
Note, if you want to map each server to one unique IGA please use the One-to-One mode.
The following table summarizes these types.
NAT Type
One-to-One
Many-to-One
(SUA/PAT)
Many-to-Many
Overload
Many-to-Many No
Overload
Server
IP Mapping
ILA1<--->IGA1
ILA1<--->IGA1
ILA2<--->IGA1
...
ILA1<--->IGA1
ILA2<--->IGA2
ILA3<--->IGA1
ILA4<--->IGA2
...
ILA1<--->IGA1
ILA2<--->IGA2
ILA3<--->IGA3
ILA4<--->IGA4
...
Server 1 IP<--->IGA1
Server 2 IP<--->IGA1