ZyXEL 202H 91-003-194003B Manual De Usuario

P-202H Plus v2 User’s Guide

Chapter 23 Network Address Translation (NAT)

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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:

Figure 125   NAT Example 3

1 In this case you need to configure Address Mapping Set 1 from Menu 15.1 - Address 

Mapping Sets. Therefore you must choose the Full Feature option from the NAT field 
(in menu 4 or menu 11.3). See 

. 

2 Then enter 15 from the main menu.

3 Enter 1 to configure the address mapping Sets.

4 Enter 1 to begin configuring this new set. Enter a Set Name, choose the Edit Action and 

then enter 1 for the Select Rule field. Press [ENTER] to confirm.

5 Select Type as One-to-One (direct mapping for packets going both ways), and enter the 

local Start IP as 192.168.1.10 (the IP address of FTP Server 1), the global Start IP as 
10.132.50.1 (our first IGA). See 

6 Repeat the previous step for rules 2 to 4 as outlined above. 

7 When finished, menu 15.1.1.1 should look like as shown in