ZyXEL P-202H User Guide - Page 224
Example 2: Internet Access with an Inside Server, Example 3: Multiple Public IP Addresses
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P-202H Plus v2 User's Guide 23.5.2 Example 2: Internet Access with an Inside Server The dynamic Inside Global Address is assigned by the ISP. Figure 123 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 Inside Server behind the NAT as shown in the next figure. Figure 124 Menu 15.2.1 Specifying an Inside Server Menu 15.2.1 - NAT Server Setup Rule Start Port No. End Port No. IP Address 1. Default Default 192.168.1.10 2. 0 0 0.0.0.0 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 Press ENTER to Confirm or ESC to Cancel: 23.5.3 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 bidirectional and two unidirectional as follows. 223 Chapter 23 Network Address Translation (NAT)