ZyXEL Communications Internet Security Appliance ZyWALL5UTM 4.0 - Manual (Page 372)

ZyWALL 5/35/70 Series User’s Guide
Chapter 22 Network Address Translation (NAT) 372
Figure 177 How NAT Works
22.1.4 NAT Application
The following figure illustrates a possible NAT application, where three inside LANs (logical
LANs using IP Alias) behind the ZyWALL can communicate with three distinct WAN
networks. More examples follow at the end of this chapter.
Figure 178 NAT Application With IP Alias