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Prestige 650H-17 ADSL Router
NAT 7-23
7.5.4 Example 4: NAT Unfriendly Application Programs
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 7-21 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.