ZyXEL Communications HS100/HS100W manual NAT Mapping Types, Following table summarizes these types

HomeSafe User’s Guide

Figure 9-2 NAT Application With IP Alias

9.1.5 NAT Mapping Types

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

¾One to One: In One-to-One mode, the HomeSafe maps one local IP address to one global IP address.

¾Many to One: In Many-to-One mode, the HomeSafe maps multiple local IP addresses to one global IP address. This is equivalent to SUA (i.e., PAT, port address translation), ZyXEL’s Single User Account feature (the SUA Only option).

¾Many-to-Many Overload: In Many-to-Many Overload mode, the HomeSafe maps the multiple local IP addresses to shared global IP addresses.

¾Many One-to-One: In Many-One-to-One mode, the HomeSafe maps each local IP address to a unique global IP address.

¾Server: 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-Oneand Many One- to-OneNAT mapping types.

The following table summarizes these types.

NAT Screens 9-3