ZyXEL Communications Corporation AMG1302 User Manual

Chapter 9 Network Address Translation (NAT)

AMG1302-T10A User’s Guide

Use this screen to edit an address mapping rule. Click the rule’s edit icon in the Address Mapping 

screen to display the screen shown next.

Network > NAT > Address Mapping: Edit 

Type

: 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. 

: 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. 

(Overload): Many-to-Many Overload mode maps multiple local IP addresses to 

shared global IP addresses. 

 (No Overload): Many-to-Many No Overload mode maps each local IP address to 

unique global IP addresses. 

: This type allows you to specify inside servers of different services behind the NAT 

to be accessible to the outside world. 

Modify

Click the edit icon to go to the screen where you can edit the address mapping rule.

Click the delete icon to delete an existing address mapping rule. Note that subsequent 

address mapping rules move up by one when you take this action.

Network > NAT > Address Mapping (continued)