Example 2: Internet Access With An Inside Server - ZyXEL Communications Prestige 310 User Manual

Prestige 310 Broadband Sharing 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 6.5. 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.

6.5.2 Example 2: Internet Access with an Inside Server

Figure 6-14 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.
6-16 Network Address Translation (NAT)