ZyXEL p-2802h-i1 Manual Do Utilizador

Chapter 9 Network Address Translation (NAT) Screens

P-2802H(W)(L)-I Series User’s Guide

Figure 68   Address Mapping Rules

The following table describes the fields in 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.  

Table 43   Address Mapping Rules

#

This is the rule index number.

Local Start IP

This is the starting Inside Local IP Address (ILA). Local IP addresses are N/A for 

Server port mapping.

Local End IP

This is the end Inside Local IP Address (ILA). If the rule is for all local IP addresses, 

then this field displays 0.0.0.0 as the Local Start IP address and 255.255.255.255 

as the Local End IP address. This field is N/A for One-to-one and Server mapping 

types.

Global Start IP

This is the starting Inside Global IP Address (IGA). Enter 0.0.0.0 here if you have a 

dynamic IP address from your ISP. You can only do this for Many-to-One and 

Server mapping types. 

Global End IP

This is the ending Inside Global IP Address (IGA). This field is N/A for One-to-one, 

Many-to-One and Server mapping types.

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. 
M-M 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. 

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.