ZyXEL P-2602HW Guida Utente

 Chapter 10 Network Address Translation (NAT) Screens

P-2602H(W)(L)-DxA User’s Guide

Note: The Address Mapping screen is available only when you select Full Feature 

in the NAT > General screen.

Ordering your rules is important because the ZyXEL Device applies the rules in the order that 
you specify. When a rule matches the current packet, the ZyXEL Device takes the 
corresponding action and the remaining rules are ignored. If there are any empty rules before 
your new configured rule, your configured rule will be pushed up by that number of empty 
rules. For example, if you have already configured rules 1 to 6 in your current set and now you 
configure rule number 9. In the set summary screen, the new rule will be rule 7, not 9. Now if 
you delete rule 4, rules 5 to 7 will be pushed up by 1 rule, so old rules 5, 6 and 7 become new 
rules 4, 5 and 6. 

To change your ZyXEL Device’s address mapping settings, click Network > NAT > Address 
Mapping to open the following screen. 

Figure 83   Address Mapping Rules

The following table describes the fields in this screen. 

Table 48   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.