2 nat setup, Figure 315 menu 15: nat setup, Table 214 applying nat in menus 4 & 11.1.2 – ZyXEL Communications Internet Security Appliance ZyWALL5UTM 4.0 User Manual

Page 560

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ZyWALL 5/35/70 Series User’s Guide

Chapter 42 Network Address Translation (NAT)

560

The following table describes the fields in this menu.

Table 214 Applying NAT in Menus 4 & 11.1.2

FIELD

DESCRIPTION

OPTIONS

Network

Address

Translation

When you select this option the SMT will use Address Mapping Set 1

(menu 15.1 - see

Section 42.2.1 on page 561

for further discussion). You

can configure any of the mapping types described in

Chapter 22 on page

370

. Choose Full Feature if you have multiple public WAN IP addresses

for your ZyWALL.
When you select Full Feature you must configure at least one address

mapping set.

Full Feature

NAT is disabled when you select this option.

None

When you select this option the SMT will use Address Mapping Set 255

(menu 15.1 - see

Section 42.2.1 on page 561

). Choose SUA Only if you

have just one public WAN IP address for your ZyWALL.

SUA Only

42.2 NAT Setup

Use the address mapping sets menus and submenus to create the mapping table used to assign
global addresses to computers on the LAN and the DMZ. Set 255 is used for SUA. When you
select Full Feature in menu 4, menu 11.1.2 or menu 11.2.2, the SMT will use Set 1 for the
first WAN port and Set 2 for the second WAN port. When you select SUA Only, the SMT
will use the pre-configured Set 255 (read only).

The server set is a list of LAN and DMZ servers mapped to external ports. To use this set, a
server rule must be set up inside the NAT address mapping set. Please see the section on port
forwarding in

Chapter 22 on page 370

for further information on these menus. To configure

NAT, enter 15 from the main menu to bring up the following screen.

Note: On a ZyWALL with two WAN ports, you can configure port forwarding and

trigger port rules for the first WAN port and separate sets of rules for the
second WAN port.

Figure 315 Menu 15: NAT Setup

Menu 15 - NAT Setup

1. Address Mapping Sets
2. Port Forwarding Setup
3. Trigger Port Setup

Enter Menu Selection Number:

Note: Configure DMZ, WLAN and LAN IP addresses in NAT menus 15.1 and 15.2.

DMZ, WLAN and LAN IP addresses must be on separate subnets.

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