ZyXEL VoIP Router Prestige 2602R-61 91-006-024004 Manual Do Utilizador

Prestige 2602R Series User’s Guide

280 

Chapter 28 Network Address Translation (NAT)

Some applications do not support NAT Mapping using TCP or UDP port address translation. 
In this case it is better to use Many-to-Many No Overload mapping as port numbers do not 
change for Many-to-Many No Overload (and One-to-One) NAT mapping types. The 
following figure illustrates this.

Figure 163   NAT Example 4

Other applications such as some gaming programs are NAT unfriendly because they embed 
addressing information in the data stream. These applications won’t work through NAT even 
when using One-to-One and Many-to-Many No Overload mapping types.

Follow the steps outlined in example 3 to configure these two menus as follows.

Figure 164   Example 4: Menu 15.1.1.1 Address Mapping Rule

After you’ve configured your rule, you should be able to check the settings in menu 15.1.1 as 
shown next.

Menu 15.1.1.1 Address Mapping Rule
     Type= Many-to-Many No Overload
     Local IP:
       Start= 192.168.1.10
       End  = 192.168.1.12
     Global IP:
       Start= 10.132.50.1
       End  = 10.132.50.3
     Server Mapping Set= N/A

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