ZyXEL Communications 792H manual NAT Mapping Types, NAT Application With IP Alias

Prestige 792H G.SHDSL Router

Figure 6-2 NAT Application With IP Alias

6.1.5 NAT Mapping Types

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

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

2.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).

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.

NAT 6-3