ZyXEL Communications 5 Series User manual

www.zyxel.com
ZyWALL 5/35/70 Series
Internet Security Appliance
User’s Guide
Version 4.04
03/2008
Edition 1
DEFAULT LOGIN
IP Address http://192.168.1.1
Password 1234

About This User's Guide
ZyWALL 5/35/70 Series User’s Guide 3
About This User's Guide
Intended Audience
This manual is intended for people who want to configure the ZyWALL using the web
configurator or System Management Terminal (SMT). You should have at least a basic
knowledge of TCP/IP networking concepts and topology.
Related Documentation
• Quick Start Guide
The Quick Start Guide is designed to help you get up and running right away. It contains
information on setting up your network and configuring for Internet access.
• Web Configurator Online Help
Embedded web help for descriptions of individual screens and supplementary
information.
• CLI Reference Guide
The CLI Reference Guide explains how to use the Command-Line Interface (CLI) to
configure the ZyWALL.
• Supporting Disk
Refer to the included CD for support documents.
• ZyXEL Web Site
Please refer to www.zyxel.com for additional support documentation and product
certifications.
User Guide Feedback
Help us help you. Send all User Guide-related comments, questions or suggestions for
improvement to the following address, or use e-mail instead. Thank you!
The Technical Writing Team,
ZyXEL Communications Corp.,
6 Innovation Road II,
Science-Based Industrial Park,
Hsinchu, 300, Taiwan.
E-mail: [email protected]

Document Conventions
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4
Document Conventions
Warnings and Notes
These are how warnings and notes are shown in this User’s Guide.
1Warnings tell you about things that could harm you or your device.
"Notes tell you other important information (for example, other things you may
need to configure or helpful tips) or recommendations.
Syntax Conventions
• The ZyWALL 5/35/70 series may be referred to as the “ZyWALL”, the “device” or the
“system” in this User’s Guide.
• Product labels, screen names, field labels and field choices are all in bold font.
• A key stroke is denoted by square brackets and uppercase text, for example, [ENTER]
means the “enter” or “return” key on your keyboard.
• “Enter” means for you to type one or more characters and then press the [ENTER] key.
“Select” or “choose” means for you to use one of the predefined choices.
• A right angle bracket ( > ) within a screen name denotes a mouse click. For example,
Maintenance > Log > Log Setting means you first click Maintenance in the navigation
panel, then the Log sub menu and finally the Log Setting tab to get to that screen.
• Units of measurement may denote the “metric” value or the “scientific” value. For
example, “k” for kilo may denote “1000” or “1024”, “M” for mega may denote “1000000”
or “1048576” and so on.
• “e.g.,” is a shorthand for “for instance”, and “i.e.,” means “that is” or “in other words”.

Document Conventions
ZyWALL 5/35/70 Series User’s Guide 5
Icons Used in Figures
Figures in this User’s Guide may use the following generic icons. The ZyWALL icon is not an
exact representation of your device.
ZyWALL Computer Notebook computer
Server Firewall Telephone
Switch Router

Safety Warnings
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6
Safety Warnings
1For your safety, be sure to read and follow all warning notices and instructions.
• Do NOT use this product near water, for example, in a wet basement or near a swimming
pool.
• Do NOT expose your device to dampness, dust or corrosive liquids.
• Do NOT store things on the device.
• Do NOT install, use, or service this device during a thunderstorm. There is a remote risk
of electric shock from lightning.
• Connect ONLY suitable accessories to the device.
• Do NOT open the device or unit. Opening or removing covers can expose you to
dangerous high voltage points or other risks. ONLY qualified service personnel should
service or disassemble this device. Please contact your vendor for further information.
• Make sure to connect the cables to the correct ports.
• Place connecting cables carefully so that no one will step on them or stumble over them.
• Always disconnect all cables from this device before servicing or disassembling.
• Use ONLY an appropriate power adaptor or cord for your device.
• Connect the power adaptor or cord to the right supply voltage (for example, 110V AC in
North America or 230V AC in Europe).
• Do NOT remove the plug and connect it to a power outlet by itself; always attach the plug
to the power adaptor first before connecting it to a power outlet.
• Do NOT allow anything to rest on the power adaptor or cord and do NOT place the
product where anyone can walk on the power adaptor or cord.
• Do NOT use the device if the power adaptor or cord is damaged as it might cause
electrocution.
• If the power adaptor or cord is damaged, remove it from the power outlet.
• Do NOT attempt to repair the power adaptor or cord. Contact your local vendor to order a
new one.
• Do not use the device outside, and make sure all the connections are indoors. There is a
remote risk of electric shock from lightning.
• CAUTION: RISK OF EXPLOSION IF BATTERY (on the motherboard) IS REPLACED
BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO
THE INSTRUCTIONS. Dispose them at the applicable collection point for the recycling
of electrical and electronic equipment. For detailed information about recycling of this
product, please contact your local city office, your household waste disposal service or the
store where you purchased the product.
• Do NOT obstruct the device ventilation slots, as insufficient airflow may harm your
device.
• Fuse Warning! Replace a fuse only with a fuse of the same type and rating.

Safety Warnings
ZyWALL 5/35/70 Series User’s Guide 7
This product is recyclable. Dispose of it properly.

Safety Warnings
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Contents Overview
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Contents Overview
Introduction ............................................................................................................................49
Getting to Know Your ZyWALL .................................................................................................. 51
Hardware Installation ................................................................................................................. 55
Introducing the Web Configurator .............................................................................................. 61
Wizard Setup ............................................................................................................................. 87
Tutorials ................................................................................................................................... 109
Registration Screens ............................................................................................................... 141
Network .................................................................................................................................147
LAN Screens ........................................................................................................................... 149
Bridge Screens ........................................................................................................................ 161
WAN Screens .......................................................................................................................... 169
DMZ Screens ........................................................................................................................... 207
WLAN Screens ........................................................................................................................219
Wireless Screens ..................................................................................................................... 229
Security .................................................................................................................................249
Firewall Screens ...................................................................................................................... 251
Intrusion Detection and Prevention (IDP) Screens ................................................................. 277
Anti-Virus Screens ................................................................................................................... 299
Anti-Spam Screens .................................................................................................................. 313
Content Filtering Screens ........................................................................................................327
Content Filtering Reports .........................................................................................................349
IPSec VPN ............................................................................................................................... 357
Certificates ............................................................................................................................... 399
Authentication Server Screens ................................................................................................ 427
Advanced ..............................................................................................................................433
Network Address Translation (NAT) ........................................................................................ 435
Static Route Screens ............................................................................................................... 451
Policy Route Screens .............................................................................................................. 457
Bandwidth Management Screens ............................................................................................ 465
DNS Screens ........................................................................................................................... 479
Remote Management Screens ................................................................................................491
UPnP Screens .........................................................................................................................519
Custom Application Screen ..................................................................................................... 529
ALG Screen ............................................................................................................................. 531

Contents Overview
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Reports, Logs and Maintenance .........................................................................................537
Reports Screens ...................................................................................................................... 539
Logs Screens .......................................................................................................................... 555
Maintenance Screens ..............................................................................................................585
SMT .......................................................................................................................................603
Introducing the SMT ................................................................................................................ 605
SMT Menu 1 - General Setup .................................................................................................. 613
WAN and Dial Backup Setup ................................................................................................... 619
LAN Setup ............................................................................................................................... 633
Internet Access ........................................................................................................................ 639
DMZ Setup .............................................................................................................................. 645
Route Setup ............................................................................................................................. 649
Wireless Setup ........................................................................................................................ 653
Remote Node Setup ................................................................................................................ 659
IP Static Route Setup ..............................................................................................................669
Network Address Translation (NAT) ........................................................................................ 673
Introducing the ZyWALL Firewall ............................................................................................. 693
Filter Configuration .................................................................................................................. 695
SNMP Configuration .................................................................................................................711
System Information & Diagnosis ............................................................................................. 713
Firmware and Configuration File Maintenance ........................................................................ 725
System Maintenance Menus 8 to 10 ....................................................................................... 739
Remote Management ..............................................................................................................745
IP Policy Routing ..................................................................................................................... 749
Call Scheduling ........................................................................................................................ 757
Troubleshooting and Product Specifications ...................................................................761
Troubleshooting ....................................................................................................................... 763
Product Specifications ............................................................................................................. 769
Appendices and Index .........................................................................................................779