ZyXEL Communications 70 Series User Manual

Page of 807
ZyWALL 5/35/70 Series User’s Guide
Chapter 22 Network Address Translation (NAT)
376
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