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4 nat application, 5 nat mapping types, Nat application 73 nat mapping types 73 – ZyXEL Communications P-660R-Tx v2 Series User Manual

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P-660R-Tx v2 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 ZyXEL Device 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: