ZyXEL P-2302R Bedienungsanleitung PDF herunterladen (Seite 268)

P-2302R Series User’s Guide

267 Chapter 28 Network Address Translation (NAT)

Figure 137 Menu 15.2 Specifying an Inside Server

28.5.3 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 bi-

directional and two unidirectional as follows.

1 Map the first IGA to the first inside FTP server for FTP traffic in both directions (1 : 1

mapping, giving both local and global IP addresses).

2 Map the second IGA to our second inside FTP server for FTP traffic in both directions (1

: 1 mapping, giving both local and global IP addresses).

3 Map the other outgoing LAN traffic to IGA3 (Many : 1 mapping).

4 You also map your third IGA to the web server and mail server on the LAN. Type

Server allows you to specify multiple servers, of different types, to other computers

behind NAT on the LAN.

The example situation looks somewhat like this:

Menu 15.2 - 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. 1026 1026 192.168.1.1

Press ENTER to Confirm or ESC to Cancel:

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