ZyXEL 35 Betriebsanweisung

 

 

All contents copyright (c) 2006 ZyXEL Communications Corporation.   

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1. 

One to One 

In One-to-One mode, the ZyWALL maps one ILA to one IGA.   

2. 

Many to One 

In Many-to-One mode, the ZyWALL 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 ZyWALL maps the multiple ILA to shared IGA.   

4. 

Many One to One 

In Many One to One, the ZyWALL maps each ILA to unique IGA.   

5. 

Server 

In Server mode, the ZyWALL 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 

IP Mapping 

One-to-One 

ILA1<--->IGA1 

Many-to-One 

(SUA/PAT) 

ILA1<--->IGA1    

ILA2<--->IGA1    

... 

Many-to-Many 

Overload 

ILA1<--->IGA1    

ILA2<--->IGA2    

ILA3<--->IGA1    

ILA4<--->IGA2    

... 

Many One-to-One 

ILA1<--->IGA1    

ILA2<--->IGA2    

ILA3<--->IGA3    

ILA4<--->IGA4    

... 

Server 

Server 1 IP<--->IGA1   

Server 2 IP<--->IGA1 

 

• 

SUA Versus Multi-NAT