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4 nat application, 5 nat mapping types, 4 nat application 10.1.5 nat mapping types – ZyXEL Communications 802.11g Wireless ADSL2+ 4-port VoIP IAD P-2602HWNLI User Manual

Page 155: Figure 81 how nat works, Figure 82 nat application with ip alias

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P-2602HWNLI User’s Guide

Chapter 10 Network Address Translation (NAT) Screens

155

Figure 81 How NAT Works

10.1.4 NAT Application

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

Figure 82 NAT Application With IP Alias

10.1.5 NAT Mapping Types

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