ZyXEL Communications 2 Plus Manual Do Utilizador

Chapter 36 Network Address Translation (NAT)

ZyWALL 2 Plus User’s Guide

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36.3 Configuring a Server behind NAT

If you do not assign a Default Server IP address, the ZyWALL discards all
packets received for ports that are not specified here or in the remote
management setup.

Follow these steps to configure a server behind NAT:

1 Enter 15 in the main menu to go to Menu 15 - NAT Setup.
2 Enter 2 to open menu 15.2 and configure the address mapping rules for the WAN port.

Figure 348 Menu 15.2: NAT Server Sets

3 Select Edit Rule in the Select Command field; type the index number of the NAT

server you want to configure in the Select Rule field and press [ENTER] to open Menu
15.2.x - NAT Server Configuration (see the next figure).

Start

Enter the starting global IP address (IGA). If you have a dynamic IP, enter 0.0.0.0 as the

Global IP Start. Note that Global IP Start can be set to 0.0.0.0 only if the types are Many-

to-One or Server.

End

Enter the ending global IP address (IGA). This field is N/A for One-to-One, Many-to-One

and Server types.

Once you have finished configuring a rule in this menu, press [ENTER] at the message “Press ENTER

to Confirm…” to save your configuration, or press [ESC] to cancel.

Table 199 Menu 15.1.1.1: Editing/Configuring an Individual Rule in a Set

FIELD

DESCRIPTION

Menu 15.2 - NAT Server Setup

       Default Server: 0.0.0.0
     Rule Act. Start Port   End Port IP Address
   ------------------------------------------------------
     001 No   0        0    0.0.0.0
     002 No   0        0    0.0.0.0
     003 No   0        0    0.0.0.0
     004 No   0        0    0.0.0.0
     005 No   0        0    0.0.0.0
     006 No   0        0    0.0.0.0
     007 No   0        0    0.0.0.0
     008 No   0        0    0.0.0.0
     009 No   0        0    0.0.0.0
     010 No   0        0    0.0.0.0

Select Command= None Select Rule= N/A
Press ENTER to Confirm or ESC to Cancel: