ZyXEL p-334 ユーザーズマニュアル

Prestige 334 User’s Guide

97

Chapter 7 Network Address Translation (NAT) Screens

Figure 32   Address Mapping Edit

The following table describes the labels in this screen.

Table 26   Address Mapping Edit

Type

Choose the port mapping type from one of the following. 
1. One-to-One: One-to-one mode maps one local IP address to one global IP 

address. Note that port numbers do not change for One-to-one NAT mapping 

type.
2. Many-to-One: 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. 
3. Many-to-Many Overload: Many-to-Many Overload mode maps multiple local 

IP addresses to shared global IP addresses. 
4. Many One-to-One: Many One-to-one mode maps each local IP address to 

unique global IP addresses. 
5. Server: This type allows you to specify inside servers of different services 

behind the NAT to be accessible to the outside world.

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 your rule is for all local IP 

addresses, then enter 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. 

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.

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