ZyXEL g-2000 plusv2 Guia Do Utilizador

ZyXEL G-2000 Plus v2 User’s Guide

Chapter 8 Single User Account (SUA) / Network Address Translation (NAT)

123

To edit an address mapping rule, select the radio button of a rule and click the Edit button to 
display the screen shown next.  

Table 42   Address Mapping

Local Start IP

This refers to the Inside Local Address (ILA), which is the starting local IP address. If 

the rule is for all local IP addresses, then this field displays 0.0.0.0 as the Local Start 

IP address. Local IP addresses are N/A for Server port mapping.

Local End IP

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

this field displays 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 refers to the Inside Global IP Address (IGA). 0.0.0.0 is for a dynamic IP address 

from your ISP with Many-to-One and Server mapping types. 

Global End IP

This is the end Inside Global Address (IGA). 
This field is N/A for One-to-One, Many-to-One and Server mapping types.

Type

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.
2. 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 device's Single 

User Account feature that previous ZyXEL device routers supported only.  
3. Many-to-Many Overload mode maps multiple local IP addresses to shared global 

IP addresses. 
4. Many One-to-One mode maps each local IP address to unique global IP 

addresses. 
5. Server allows you to specify inside servers of different services behind the NAT to 

be accessible to the outside world.

Edit 

Click Edit to go to the Address Mapping Rule screen.

Delete

Click Delete to delete an address mapping rule.