Zyxel-communications 70 Series Manual do Utilizador descarregar pdf (Página 575)

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101

ZyWALL 5/35/70 Series User’s Guide

575 Chapter 42 Network Address Translation (NAT)

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 329 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 Network

Address Translation field (in menu 4 or menu 11.3) in

Figure 330 on page 576.

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

Figure 331 on page 576).

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

7 When finished, menu 15.1.1 should look like as shown in Figure 332 on page 577.

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