ZyXEL Communications Prestige 645R-A Series, User Manual, Page: 68 / 251

Prestige 645R-A Series User’s Guide
6-12 NAT
Table 6-6 Address Mapping Rules
LABEL DESCRIPTION
Type 1-1 : One-to-one mode maps one local IP address to one global IP address. Note that
port numbers do not change for the One-to-one NAT mapping type.
M-1 : Many-to-One mode 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 only.
M-M Ov (Overload): Many-to-Many Overload mode maps multiple local IP addresses to
shared global IP addresses.
MM No (No Overload): Many-to-Many No Overload mode maps each local IP address to
unique global IP addresses.
Server : This type allows you to specify inside servers of different services behind the
NAT to be accessible to the outside world.
Back Click Back to return to the NAT Mode screen.
6.7 Editing an Address Mapping Rule
To edit an address mapping rule, click the rule’s link in the NAT Address Mapping Rules screen to display
the screen shown next.
Figure 6-7 Address Mapping Rule Edit
The following table describes the labels in this screen.