ZyXEL P-792H v2 User Guide - Page 330
Example 2: Internet Access with a Default Server, Example 3: Multiple Public IP Addresses
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Chapter 30 NAT Setup 30.4.2 Example 2: Internet Access with a Default Server Figure 163 NAT Example 2 In this case, you do exactly as above (use the convenient pre-configured SUA Only set) and also go to menu 15.2.1 to specify the Default Server behind the NAT as shown in the next figure. Figure 164 Menu 15.2: Specifying an Inside Server Menu 15.2 - NAT Server Setup Rule Start Port No. End Port No. IP Address 1. Default Default 192.168.1.10 2. 21 25 192.168.1.33 3. 0 0 0.0.0.0 4. 0 0 0.0.0.0 5. 0 0 0.0.0.0 6. 0 0 0.0.0.0 7. 0 0 0.0.0.0 8. 0 0 0.0.0.0 9. 0 0 0.0.0.0 10. 0 0 0.0.0.0 11. 0 0 0.0.0.0 12. 0 0 0.0.0.0 30.4.3 Example 3: Multiple Public IP Addresses With Inside Servers In this example, there are 3 IGAs from our ISP. There are many departments but two have their own FTP server. All departments share the same router. The example will reserve one IGA for each department with an FTP server and all departments use the other IGA. Map the FTP servers to the first two IGAs and the other LAN traffic to the remaining IGA. Map the third IGA to an inside web server and mail server. Four rules need to be configured, two bi-directional and two unidirectional as follows. 330 P-792H v2 User's Guide