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4 nat application, 5 nat mapping types, 4 nat application 7.1.5 nat mapping types – ZyXEL Communications ADSL2+ Ethernet/USB Gateway 660RU-Tx Series User Manual

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Prestige 660RU-Tx Series User’s Guide

Chapter 7 Network Address Translation (NAT) Screens

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Figure 23 How NAT Works

7.1.4 NAT Application

The following figure illustrates a possible NAT application, where three inside LANs (logical
LANs using IP Alias) behind the Prestige can communicate with three distinct WAN
networks. More examples follow at the end of this chapter.

Figure 24 NAT Application With IP Alias

7.1.5 NAT Mapping Types

NAT supports five types of IP/port mapping. They are: