ZyXEL p-660h-61 Betriebsanweisung

Prestige 660H Series User’s Guide 

Network Address Translation (NAT) Screens 

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NAT supports five types of IP/port mapping. They are:

 

One to One: In One-to-One mode, the Prestige maps one local IP address to one global IP address. 

Many to One: In Many-to-One mode, the Prestige maps multiple local IP addresses to one global IP 
address. This is equivalent to SUA (for instance, PAT, port address translation), ZyXEL’s Single User 
Account feature that previous ZyXEL routers supported (the SUA Only option in today’s routers).  

Many to Many Overload: In Many-to-Many Overload mode, the Prestige maps the multiple local IP 
addresses to shared global IP addresses. 

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.  

Server: This type allows you to specify inside servers of different services behind the NAT to be 
accessible to the outside world. 

Port numbers do not change for One-to-One and Many-to-Many No Overload NAT mapping types.  

The following table summarizes these types. 

One-to-One ILA1ÅÆ IGA1 

1:1 

Many-to-One (SUA/PAT) 

ILA1ÅÆ IGA1 

M:1