Figure 29-12 Nat Example 2 - ZyXEL Communications ZyWall 10 User Manual

ZyWALL 10~100 Series Internet Security Gateway
From menu 4 shown above, simply choose the SUA Only option from the Network Address Translation
field. This is the Many-to-One mapping discussed in section 29.4. The SUA Only read-only option from
the Network Address Translation field in menus 4 and 11.3 is specifically pre-configured to handle this
case.
29.4.2 Example 2: Internet Access with an Inside Server

Figure 29-12 NAT Example 2

In this case, you do exactly as above (use the convenient pre-configured SUA Only set) and also go to
menu 15.2 to specify the Inside Server behind the NAT as shown in the next figure.
29-12 NAT