ZyXEL Communications 310 6.1.5 NAT Mapping Types, One to One, Many to One, Many One to One, Many to Many Overload, Figure 6-2NAT Application With IP Alias

Prestige 310 Broadband Sharing Gateway

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 (i.e., 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 One to One: In Many-One-to-One mode, the Prestige maps the each local IP addresses to unique global IP addresses.

6-4 Network Address Translation (NAT)