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ZyXEL 10, 10W, 50, 100 User Manual

ZyWALL 10/10W/50/100
Internet Security Gateway
User’s Guide
Versions 3.52 and 3.60
December 2002
Copyright
Copyright © 2002 by ZyXEL Communications Corporation.
The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a retrieval system, translated into any language, or transmitted in any form or by any means, electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or otherwise, without the prior written permission of ZyXEL Communications Corporation. Published by ZyXEL Communications Corporation. All rights reserved.
Disclaimer
ZyXEL does not assume any liability arising out of the application or use of any products, or software described herein. Neither does it convey any license under its patent rights nor the patent rights of others. ZyXEL further reserves the right to make changes in any products described herein without notice.
This publication is subject to change without notice.
Trademarks
Trademarks mentioned in this publication are used for identification purposes only and may be properties of their respective owners.
ii Copyright
Federal Communications Commission (FCC)
Interference Statement
This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: This device may not cause harmful interference. This device must accept any interference received, including interference that may cause undesired operations. This equipment has been tested and found to comply with the limits for a CLASS B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. If this equipment does cause harmful interference to radio/television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and the receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help.
Notice 1
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
Certifications
Refer to the product page at www.zyxel.com.
FCC iii
Information for Canadian Users
The Industry Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operation, and safety requirements. The Industry Canada does not guarantee that the equipment will operate to a user's satisfaction. Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company. The equipment must also be installed using an acceptable method of connection. In some cases, the company's inside wiring associated with a single line individual service may be extended by means of a certified connector assembly. The customer should be aware that the compliance with the above conditions may not prevent degradation of service in some situations. Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment. For their own protection, users should ensure that the electrical ground connections of the power utility, telephone lines, and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas.
Caution
Users should not attempt to make such connections themselves, but should contact the appropriate electrical inspection authority, or electrician, as appropriate.
Note
This digital apparatus does not exceed the class A limits for radio noise emissions from digital apparatus set out in the radio interference regulations of Industry Canada.
iv Information for Canadian Users
ZyXEL Limited Warranty
ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in materials or workmanship for a period of up to two years from the date of purchase. During the warranty period, and upon proof of purchase, should the product have indications of failure due to faulty workmanship and/or materials, ZyXEL will, at its discretion, repair or replace the defective products or components without charge for either parts or labor, and to whatever extent it shall deem necessary to restore the product or components to proper operating condition. Any replacement will consist of a new or re-manufactured functionally equivalent product of equal value, and will be solely at the discretion of ZyXEL. This warranty shall not apply if the product is modified, misused, tampered with, damaged by an act of God, or subjected to abnormal working conditions.
NOTE
Repair or replacement, as provided under this warranty, is the exclusive remedy of the purchaser. This warranty is in lieu of all other warranties, express or implied, including any implied warranty of merchantability or fitness for a particular use or purpose. ZyXEL shall in no event be held liable for indirect or consequential damages of any kind of character to the purchaser. To obtain the services of this warranty, contact ZyXEL's Service Center for your Return Material Authorization number (RMA). Products must be returned Postage Prepaid. It is recommended that the unit be insured when shipped. Any returned products without proof of purchase or those with an out-dated warranty will be repaired or replaced (at the discretion of ZyXEL) and the customer will be billed for parts and labor. All repaired or replaced products will be shipped by ZyXEL to the corresponding return address, Postage Paid. This warranty gives you specific legal rights, and you may also have other rights that vary from country to country.
Online Registration
Register online registration at www.zyxel.com for free future product updates and information.
Warranty v
Customer Support
When you contact your customer support representative please have the following information ready: Please have the following information ready when you contact customer support.
• Product model and serial number.
• Information in Menu 24.2.1 – System Information.
• Warranty Information.
• Date that you received your device.
• Brief description of the problem and the steps you took to solve it.
LOCATION WORLDWIDE
AMERICA
METHOD
support@zyxel.com.tw
sales@zyxel.com.tw
support@zyxel.com +1-714-632-0882
sales@zyxel.com
support@zyxel.dk +45-3955-0700 www.zyxel.dk SCANDINAVIA
sales@zyxel.dk
support@zyxel.de +49-2405-6909-0 www.zyxel.de GERMANY
sales@zyxel.de
E-MAIL
SUPPORT/SALES
+886-3-578-2439 ftp.europe.zyxel.com
+1-714-632-0858 ftp.zyxel.com
+45-3955-0707 ftp.zyxel.dk
+49-2405-6909-99
TELEPHONE/FAX WEB SITE/ FTP SITE REGULAR MAIL
+886-3-578-3942 www.zyxel.com
www.europe.zyxel.com
www.zyxel.com NORTH
800-255-4101
ZyXEL Communications Corp., 6 Innovation Road II, Science­Based Industrial Park, Hsinchu 300, Taiwan
ZyXEL Communications Inc., 1650 Miraloma Avenue, Placentia, CA 92870, U.S.A.
ZyXEL Communications A/S, Columbusvej 5, 2860 Soeborg, Denmark
ZyXEL Deutschland GmbH. Adenauerstr. 20/A4 D-52146 Wuerselen, Germany
vi Customer Support
Table of Contents
Copyright......................................................................................................................................................ii
Federal Communications Commission (FCC) Interference Statement................................................. iii
Information for Canadian Users ...............................................................................................................iv
ZyXEL Limited Warranty ..........................................................................................................................v
Customer Support ......................................................................................................................................vi
List of Figures ...........................................................................................................................................xvi
List of Tables ............................................................................................................................................xxv
Preface ......................................................................................................................................................xxx
Overview ........................................................................................................................................................... I
Chapter 1 Getting to Know Your ZyWALL .......................................................................................... 1-1
1.1 The ZyWALL 10/10W/50/100 Internet Security Gateway........................................................ 1-1
1.2 Features ...................................................................................................................................... 1-1
1.3 Applications for the ZyWALL................................................................................................... 1-7
Chapter 2 Hardware Installation ........................................................................................................... 2-1
2.1 Front Panel LEDs and Back Panel Ports.................................................................................... 2-1
2.2 ZyWALL Rear Panel and Connections...................................................................................... 2-3
2.3 Additional Installation Requirements......................................................................................... 2-8
2.4 Additional Installation Requirements for Using 802.1x............................................................. 2-9
Initial Setup and Configuration.....................................................................................................................II
Chapter 3 Initial Setup............................................................................................................................ 3-1
3.1 Turning On Your ZyWALL....................................................................................................... 3-1
3.2 Navigating the SMT Interface....................................................................................................3-2
3.3 Changing the System Password ................................................................................................. 3-7
3.4 Resetting the ZyWALL.............................................................................................................. 3-8
Chapter 4 SMT Menu 1 - General Setup............................................................................................... 4-1
Table of Contents vii
4.1 System Name ..............................................................................................................................4-1
4.2 Dynamic DNS.............................................................................................................................4-1
4.3 General Setup..............................................................................................................................4-2
Chapter 5 WAN and Dial Backup Setup ................................................................................................5-1
5.1 Cloning The MAC Address ........................................................................................................5-1
5.2 WAN Setup.................................................................................................................................5-1
5.3 Dial Backup ................................................................................................................................5-2
5.4 Configuring Dial Backup in Menu 2...........................................................................................5-2
5.5 Advanced WAN Setup................................................................................................................5-4
5.6 Backup Remote Node Setup .......................................................................................................5-6
5.7 Remote Node Profile (Backup ISP)............................................................................................5-7
5.8 Editing PPP Options ...................................................................................................................5-9
5.9 Editing TCP/IP Options ............................................................................................................5-11
5.10 Editing Login Script..............................................................................................................5-12
5.11 Remote Node Filter............................................................................................................... 5-14
Chapter 6 LAN Setup...............................................................................................................................6-1
6.1 Introduction.................................................................................................................................6-1
6.2 LAN Port Filter Setup.................................................................................................................6-1
6.3 TCP/IP and LAN DHCP.............................................................................................................6-2
6.4 TCP/IP and DHCP Ethernet Setup Menu ...................................................................................6-5
6.5 Wireless LAN ...........................................................................................................................6-10
6.6 Wireless LAN Setup .................................................................................................................6-11
Chapter 7 Wireless LAN Security Setup ................................................................................................7-1
7.1 Levels of Security .......................................................................................................................7-1
7.2 Data Encryption with WEP.........................................................................................................7-1
7.3 Network Authentication..............................................................................................................7-3
7.4 Local User Authentication ..........................................................................................................7-8
viii Table of Contents
7.5 MAC Address Filtering............................................................................................................ 7-10
Chapter 8 DMZ Setup............................................................................................................................. 8-1
8.1 Introduction................................................................................................................................ 8-1
8.2 DMZ Port Filter Setup ............................................................................................................... 8-2
8.3 TCP/IP Setup.............................................................................................................................. 8-2
Chapter 9 Internet Access ....................................................................................................................... 9-1
9.1 Internet Access Setup ................................................................................................................. 9-1
9.2 Basic Setup Complete ................................................................................................................ 9-5
Advanced Applications ................................................................................................................................. III
Chapter 10 Remote Node Setup............................................................................................................ 10-1
10.1 Remote Node Setup.............................................................................................................. 10-1
10.2 Remote Node Profile............................................................................................................ 10-2
10.3 Editing TCP/IP Options (with Ethernet Encapsulation)....................................................... 10-7
10.4 Remote Node Filter ............................................................................................................ 10-11
10.5 Traffic Redirect .................................................................................................................. 10-12
Chapter 11 IP Static Route Setup ..........................................................................................................11-1
11.1 IP Static Route Setup............................................................................................................ 11-2
Chapter 12 Network Address Translation (NAT) ............................................................................... 12-1
12.1 Introduction.......................................................................................................................... 12-1
12.2 Using NAT........................................................................................................................... 12-6
12.3 NAT Setup ........................................................................................................................... 12-8
12.4 NAT Server Sets – Port Forwarding .................................................................................. 12-14
12.5 General NAT Examples ..................................................................................................... 12-17
12.6 Trigger Port Forwarding..................................................................................................... 12-24
Firewall and Content Filters ........................................................................................................................ IV
Chapter 13 Firewalls ............................................................................................................................. 13-1
13.1 What Is a Firewall? .............................................................................................................. 13-1
Table of Contents ix
13.2 Types of Firewalls.................................................................................................................13-1
13.3 Introduction to ZyXEL’s Firewall ........................................................................................13-2
13.4 Denial of Service...................................................................................................................13-3
13.5 Stateful Inspection ................................................................................................................13-7
13.6 Guidelines For Enhancing Security With Your Firewall....................................................13-11
13.7 Packet Filtering Vs Firewall ...............................................................................................13-12
Chapter 14 Introducing the ZyWALL Firewall ...................................................................................14-1
14.1 Remote Management and the Firewall .................................................................................14-1
14.2 Access Methods ....................................................................................................................14-1
14.3 Using ZyWALL SMT Menus...............................................................................................14-1
Chapter 15 Using the ZyWALL Web Configurator............................................................................. 15-1
15.1 Web Configurator Login and Main Menu Screens...............................................................15-1
15.2 Enabling the Firewall............................................................................................................15-1
15.3 Attack Alert...........................................................................................................................15-2
Chapter 16 Creating Custom Rules ......................................................................................................16-1
16.1 Rules Overview.....................................................................................................................16-1
16.2 Rule Logic Overview............................................................................................................16-2
16.3 Connection Direction Examples ...........................................................................................16-4
16.4 Rule Summary ......................................................................................................................16-5
16.5 Predefined Services...............................................................................................................16-8
16.6 Custom Ports.......................................................................................................................16-15
16.7 Creating/Editing A Custom Port.........................................................................................16-15
16.8 Example Firewall Rule .......................................................................................................16-17
Chapter 17 Content Filtering ................................................................................................................17-1
17.1 Categories .............................................................................................................................17-1
17.2 Free .......................................................................................................................................17-5
17.3 iCard .....................................................................................................................................17-7
x Table of Contents
17.4 List Update........................................................................................................................... 17-8
17.5 Exempt Computers............................................................................................................. 17-10
17.6 Customizing ....................................................................................................................... 17-11
17.7 Domain Name .................................................................................................................... 17-14
Logs, Filter Configuration, and SNMP Configuration ................................................................................V
Chapter 18 Centralized Logs................................................................................................................ 18-1
18.1 View Log.............................................................................................................................. 18-1
18.2 Log Settings ......................................................................................................................... 18-3
Chapter 19 Filter Configuration........................................................................................................... 19-1
19.1 About Filtering ..................................................................................................................... 19-1
19.2 Configuring a Filter Set........................................................................................................19-4
19.3 Example Filter.................................................................................................................... 19-13
19.4 Filter Types and NAT ........................................................................................................ 19-16
19.5 Firewall .............................................................................................................................. 19-16
19.6 Applying a Filter and Factory Defaults.............................................................................. 19-17
Chapter 20 SNMP Configuration ......................................................................................................... 20-1
20.1 About SNMP........................................................................................................................ 20-1
20.2 Supported MIBs ................................................................................................................... 20-3
20.3 SNMP Configuration............................................................................................................ 20-3
20.4 SNMP Traps......................................................................................................................... 20-4
System Information and Diagnosis and Firmware and Configuration File Maintenance...................... VI
Chapter 21 System Information & Diagnosis...................................................................................... 21-1
21.1 System Status ....................................................................................................................... 21-1
21.2 System Information and Console Port Speed....................................................................... 21-3
21.3 Log and Trace ...................................................................................................................... 21-5
21.4 Diagnostic .......................................................................................................................... 21-10
Chapter 22 Firmware and Configuration File Maintenance ............................................................. 22-1
Table of Contents xi
22.1 Filename Conventions ..........................................................................................................22-1
22.2 Backup Configuration...........................................................................................................22-2
22.3 Restore Configuration...........................................................................................................22-8
22.4 Uploading Firmware and Configuration Files ....................................................................22-11
System Maintenance and Information and Remote Management.......................................................... VII
Chapter 23 System Maintenance & Information.................................................................................23-1
23.1 Command Interpreter Mode..................................................................................................23-1
23.2 Call Control Support.............................................................................................................23-2
23.3 Time and Date Setting ..........................................................................................................23-5
Chapter 24 Remote Management ......................................................................................................... 24-1
24.1 Remote Management and the Firewall .................................................................................24-1
24.2 Telnet ....................................................................................................................................24-1
24.3 FTP .......................................................................................................................................24-2
24.4 Web....................................................................................................................................... 24-2
24.5 SNMP ...................................................................................................................................24-2
24.6 DNS ......................................................................................................................................24-2
24.7 Remote Management ............................................................................................................24-2
24.8 Remote Management and NAT ............................................................................................24-4
24.9 System Timeout .................................................................................................................... 24-5
Bandwidth Management............................................................................................................................VIII
Chapter 25 Bandwidth Management....................................................................................................25-1
25.1 Introduction...........................................................................................................................25-1
25.2 Bandwidth Classes and Filters .............................................................................................. 25-1
25.3 Proportional Bandwidth Allocation ......................................................................................25-2
25.4 Bandwidth Management Usage Examples............................................................................25-2
25.5 Scheduler ..............................................................................................................................25-4
25.6 Maximize Bandwidth Usage................................................................................................. 25-5
xii Table of Contents
25.7 Bandwidth Borrowing.......................................................................................................... 25-8
25.8 Bandwidth Management Setup .......................................................................................... 25-10
IP Policy Routing, Call Scheduling and VPN/IPSec................................................................................... IX
Chapter 26 IP Policy Routing ............................................................................................................... 26-1
26.1 Introduction.......................................................................................................................... 26-1
26.2 Benefits ................................................................................................................................ 26-1
26.3 Routing Policy...................................................................................................................... 26-1
26.4 IP Routing Policy Setup....................................................................................................... 26-2
26.5 Applying an IP Policy .......................................................................................................... 26-6
26.6 IP Policy Routing Example .................................................................................................. 26-7
Chapter 27 Call Scheduling .................................................................................................................. 27-1
27.1 Introduction.......................................................................................................................... 27-1
Chapter 28 Introduction to IPSec......................................................................................................... 28-1
28.1 Introduction.......................................................................................................................... 28-1
28.2 IPSec Architecture ............................................................................................................... 28-3
28.3 Encapsulation ....................................................................................................................... 28-5
28.4 IPSec and NAT .................................................................................................................... 28-5
Chapter 29 VPN/IPSec Setup ............................................................................................................... 29-1
29.1 VPN/IPSec Setup .................................................................................................................29-1
29.2 IPSec Algorithms ................................................................................................................. 29-2
29.3 IPSec Summary.................................................................................................................... 29-3
29.4 IPSec Setup ........................................................................................................................ 29-11
29.5 IKE Setup........................................................................................................................... 29-17
29.6 Manual Setup ..................................................................................................................... 29-21
Chapter 30 SA Monitor ......................................................................................................................... 30-1
30.1 Introduction.......................................................................................................................... 30-1
30.2 Using SA Monitor ................................................................................................................30-1
Table of Contents xiii
Troubleshooting .............................................................................................................................................. X
Chapter 31 Troubleshooting ....................................................................................................................... 1
31.1 Problems Starting Up the ZyWALL .......................................................................................... 1
31.2 Problems with the LAN Interface .............................................................................................. 2
31.3 Problems with the DMZ Interface..............................................................................................2
31.4 Problems with the WAN Interface............................................................................................. 3
31.5 Problems with Internet Access...................................................................................................3
31.6 Problems with the Password ......................................................................................................4
31.7 Problems with Remote Management ......................................................................................... 4
General Appendices.......................................................................................................................................XI
Appendix A Setting up Your Computer’s IP Address............................................................................... 1
Appendix B Triangle Route ......................................................................................................................12
Appendix C The Big Picture..................................................................................................................... 15
Appendix D Wireless LAN and IEEE 802.11 .......................................................................................... 16
Appendix E Wireless LAN With IEEE 802.1x ........................................................................................20
Appendix F PPPoE.................................................................................................................................... 23
Appendix G PPTP ..................................................................................................................................... 25
Appendix H Hardware Specifications ..................................................................................................... 28
Appendix I Universal Plug and Play........................................................................................................ 33
Appendix J IP Subnetting ......................................................................................................................... 42
Appendix K Safety Warnings and Instructions ...................................................................................... 50
Appendix L Removing and Installing a ZyWALL 100 Fuse .................................................................. 51
Command and Log Appendices .................................................................................................................. XII
Appendix M Command Interpreter.........................................................................................................55
Appendix N Firewall Commands............................................................................................................. 56
Appendix O NetBIOS Filter Commands................................................................................................. 63
Appendix P Boot Commands.................................................................................................................... 67
xiv Table of Contents
Appendix Q Log Descriptions...................................................................................................................69
Appendix R Brute-Force Password Guessing Protection.......................................................................87
Index............................................................................................................................................................ XIII
Index ............................................................................................................................................................A
Table of Contents xv
List of Figures
Figure 1-1 Secure Internet Access via Cable, DSL or Wireless Modem.........................................................1-8
Figure 1-2 VPN Application ...........................................................................................................................1-9
Figure 2-1 ZyWALL 100 Front Panel.............................................................................................................2-1
Figure 2-2 ZyWALL 50 Front Panel...............................................................................................................2-1
Figure 2-3 ZyWALL 10W Front Panel...........................................................................................................2-1
Figure 2-4 ZyWALL 10 Front Panel...............................................................................................................2-2
Figure 2-5 ZyWALL 100 Rear Panel..............................................................................................................2-4
Figure 2-6 ZyWALL 50 Rear Panel................................................................................................................2-4
Figure 2-7 ZyWALL 10W Rear Panel............................................................................................................2-5
Figure 2-8 ZyWALL 10 Rear Panel................................................................................................................2-5
Figure 2-9 Inserting the Wireless LAN Card ..................................................................................................2-8
Figure 3-1 Initial Screen .................................................................................................................................3-1
Figure 3-2 Password Screen ...........................................................................................................................3-2
Figure 3-3 Main Menu (ZyWALL 100)..........................................................................................................3-3
Figure 3-4 Getting Started and Advanced Applications SMT Menus .............................................................3-5
Figure 3-5 Advanced Management SMT Menus ............................................................................................3-6
Figure 3-6 Schedule Setup and IPSec VPN Configuration SMT Menus........................................................3-7
Figure 3-7 Menu 23: System Password ..........................................................................................................3-7
Figure 4-1 Menu 1: General Setup..................................................................................................................4-2
Figure 4-2 Configure Dynamic DNS..............................................................................................................4-3
Figure 5-1 MAC Address Cloning in WAN Setup..........................................................................................5-1
Figure 5-2 Menu 2: Dial Backup Setup .........................................................................................................5-3
Figure 5-3 Menu 2.1 Advanced WAN Setup ..................................................................................................5-5
Figure 5-4 Menu 11.1 Remote Node Profile (Backup ISP) ............................................................................5-7
Figure 5-5 Menu 11.2 - Remote Node PPP Options .....................................................................................5-10
xvi List of Figures
Figure 5-6 Remote Node PPP Options Menu Fields .................................................................................... 5-10
Figure 5-7 Menu 11.3: Remote Node Network Layer Options.....................................................................5-11
Figure 5-8 Menu 11.4 – Remote Node Setup Script .................................................................................... 5-14
Figure 5-9 Menu 11.5: Remote Node Filter (Ethernet)................................................................................ 5-15
Figure 5-10 Menu 11.5: Remote Node Filter (PPPoE or PPTP).................................................................. 5-15
Figure 6-1 Menu 3: LAN Setup ..................................................................................................................... 6-1
Figure 6-2 Menu 3.1: LAN Port Filter Setup ................................................................................................. 6-2
Figure 6-3 Physical Network ......................................................................................................................... 6-5
Figure 6-4 Partitioned Logical Networks....................................................................................................... 6-5
Figure 6-5 Menu 3: TCP/IP and DHCP Setup................................................................................................ 6-6
Figure 6-6 Menu 3.2: TCP/IP and DHCP Ethernet Setup.............................................................................. 6-6
Figure 6-7 Menu 3.2.1: IP Alias Setup........................................................................................................... 6-9
Figure 6-8 RTS Threshold............................................................................................................................6-11
Figure 6-9 Menu 3.5 – Wireless LAN Setup................................................................................................ 6-12
Figure 7-1 ZyWALL Wireless Security Levels .............................................................................................. 7-1
Figure 7-2 Wireless LAN ............................................................................................................................... 7-2
Figure 7-3 Sequence for EAP Authentication ................................................................................................ 7-5
Figure 7-4 Wireless LAN 802.1X Authentication .......................................................................................... 7-6
Figure 7-5 Authentication RADIUS............................................................................................................... 7-7
Figure 7-6 Local User Database..................................................................................................................... 7-9
Figure 7-7 WLAN MAC Address Filter........................................................................................................7-11
Figure 8-1 Menu 5: DMZ Setup.................................................................................................................... 8-1
Figure 8-2 Menu 5.1: DMZ Port Filter Setup ................................................................................................ 8-2
Figure 8-3 Menu 5: TCP/IP Setup.................................................................................................................. 8-2
Figure 8-4 Menu 5.2: TCP/IP Setup............................................................................................................... 8-3
Figure 8-5 Menu 5.2.1: IP Alias Setup........................................................................................................... 8-4
Figure 9-1 Menu 4: Internet Access Setup (Ethernet).................................................................................... 9-1
List of Figures xvii
Figure 9-2 Internet Access Setup (PPTP) .......................................................................................................9-3
Figure 9-3 Internet Access Setup (PPPoE) .....................................................................................................9-4
Figure 10-1 Menu 11 Remote Node Setup ...................................................................................................10-1
Figure 10-2 Menu 11.1: Remote Node Profile for Ethernet Encapsulation ..................................................10-2
Figure 10-3 Menu 11.1: Remote Node Profile for PPPoE Encapsulation ....................................................10-4
Figure 10-4 Menu 11.1: Remote Node Profile for PPTP Encapsulation.......................................................10-6
Figure 10-5 Menu 11.3: Remote Node Network Layer Options for Ethernet Encapsulation .......................10-7
Figure 10-6 Menu 11.3: Remote Node Network Layer Options for PPTP Encapsulation............................10-9
Figure 10-7 Menu 11.5: Remote Node Filter (Ethernet Encapsulation) .....................................................10-11
Figure 10-8 Menu 11.5: Remote Node Filter (PPPoE or PPTP Encapsulation) .........................................10-12
Figure 10-9 Traffic Redirect WAN Setup ...................................................................................................10-12
Figure 10-10 Traffic Redirect LAN Setup ..................................................................................................10-13
Figure 10-11 Menu 11.1: Remote Node Profile..........................................................................................10-13
Figure 10-12 Menu 11.6: Traffic Redirect Setup ........................................................................................10-14
Figure 11-1 Example of Static Routing Topology ........................................................................................11-1
Figure 11-2 Menu 12: IP Static Route Setup (ZyWALL 10W)..................................................................... 11-2
Figure 11-3 Menu 12. 1: Edit IP Static Route............................................................................................... 11-3
Figure 12-1 How NAT Works.......................................................................................................................12-3
Figure 12-2 NAT Application With IP Alias .................................................................................................12-4
Figure 12-3 Menu 4: Applying NAT for Internet Access..............................................................................12-7
Figure 12-4 Menu 11.3: Applying NAT to the Remote Node .......................................................................12-8
Figure 12-5 Menu 15: NAT Setup ................................................................................................................12-9
Figure 12-6 Menu 15.1: Address Mapping Sets ...........................................................................................12-9
Figure 12-7 Menu 15.1.255: SUA Address Mapping Rules .......................................................................12-10
Figure 12-8 Menu 15.1.1: First Set............................................................................................................. 12-11
Figure 12-9 Menu 15.1.1.1: Editing/Configuring an Individual Rule in a Set............................................12-13
Figure 12-10 Menu 15.2: NAT Server Setup .............................................................................................. 12-16
xviii List of Figures
Figure 12-11 Multiple Servers Behind NAT Example ............................................................................... 12-16
Figure 12-12 NAT Example 1 .................................................................................................................... 12-17
Figure 12-13 Menu 4: Internet Access & NAT Example ........................................................................... 12-17
Figure 12-14 NAT Example 2 .................................................................................................................... 12-18
Figure 12-15 Menu 15.2: Specifying an Inside Server............................................................................... 12-19
Figure 12-16 NAT Example 3 .................................................................................................................... 12-20
Figure 12-17 Example 3: Menu 11.3.......................................................................................................... 12-21
Figure 12-18 Example 3: Menu 15.1.1.1 ................................................................................................... 12-21
Figure 12-19 Example 3: Final Menu 15.1.1 ............................................................................................. 12-22
Figure 12-20 Example 3: Menu 15.2 ......................................................................................................... 12-22
Figure 12-21 NAT Example 4 .................................................................................................................... 12-23
Figure 12-22 Example 4: Menu 15.1.1.1: Address Mapping Rule............................................................. 12-24
Figure 12-23 Example 4: Menu 15.1.1: Address Mapping Rules .............................................................. 12-24
Figure 12-24 Trigger Port Forwarding Process: Example.......................................................................... 12-25
Figure 12-25 Menu 15.3—Trigger Port Setup ........................................................................................... 12-26
Figure 13-1 ZyWALL Firewall Application................................................................................................. 13-3
Figure 13-2 Three-Way Handshake ............................................................................................................. 13-5
Figure 13-3 SYN Flood................................................................................................................................ 13-5
Figure 13-4 Smurf Attack ............................................................................................................................ 13-6
Figure 13-5 Stateful Inspection.................................................................................................................... 13-8
Figure 14-1 Menu 21: Filter and Firewall Setup.......................................................................................... 14-1
Figure 14-2 Menu 21.2: Firewall Setup ....................................................................................................... 14-2
Figure 15-1 Enabling the Firewall (ZyWALL 100)...................................................................................... 15-2
Figure 15-2 Attack Alert .............................................................................................................................. 15-5
Figure 16-1 LAN to WAN Traffic................................................................................................................ 16-4
Figure 16-2 WAN to LAN Traffic................................................................................................................ 16-5
Figure 16-3 Firewall Rules Summary: First Screen (ZyWALL100) ............................................................ 16-6
List of Figures xix
Figure 16-4 Creating/Editing A Firewall Rule (ZyWALL100)...................................................................16-12
Figure 16-5 Adding/Editing Source and Destination Addresses .................................................................16-14
Figure 16-6 Creating/Editing A Custom Port..............................................................................................16-16
Figure 16-7 Firewall Rule Configuration Screen (ZyWALL100)...............................................................16-17
Figure 16-8 Firewall IP Config Screen .......................................................................................................16-18
Figure 16-9 Custom Port for MyService.....................................................................................................16-19
Figure 16-10 MyService Rule Configuration (ZyWALL100) ....................................................................16-20
Figure 16-11 Example 3: Rule Summary (ZyWALL100)...........................................................................16-21
Figure 17-1Content Filter: Categories ..........................................................................................................17-2
Figure 17-2 Content Filter: Free ...................................................................................................................17-6
Figure 17-3 Content Filter: iCard .................................................................................................................17-7
Figure 17-4 Content Filter: List Update........................................................................................................17-9
Figure 17-5 Content Filter: Exempt Zone...................................................................................................17-10
Figure 17-6 Content Filter: Customize .......................................................................................................17-12
Figure 17-7 Content Filter: Domain Name.................................................................................................17-14
Figure 18-1 View Log...................................................................................................................................18-2
Figure 18-2 Log Settings .............................................................................................................................. 18-4
Figure 19-1 Outgoing Packet Filtering Process ............................................................................................ 19-2
Figure 19-2 Filter Rule Process ....................................................................................................................19-3
Figure 19-4 Menu 21: Filter and Firewall Setup...........................................................................................19-4
Figure 19-5 Menu 21.1: Filter Set Configuration .........................................................................................19-4
Figure 19-6 Menu 21.1.1.1: TCP/IP Filter Rule ...........................................................................................19-7
Figure 19-7 Executing an IP Filter..............................................................................................................19-10
Figure 19-8 Menu 21.1.4.1: Generic Filter Rule.........................................................................................19-11
Figure 19-9 Telnet Filter Example ..............................................................................................................19-13
Figure 19-10 Example Filter: Menu 21.1.3.1..............................................................................................19-14
Figure 19-11 Example Filter Rules Summary: Menu 21.1.3 ...................................................................... 19-15
xx List of Figures
Figure 19-12 Protocol and Device Filter Sets ............................................................................................ 19-16
Figure 19-13 Filtering LAN Traffic ........................................................................................................... 19-17
Figure 19-14Filtering DMZ Traffic............................................................................................................ 19-18
Figure 19-15 Filtering Remote Node Traffic ............................................................................................. 19-18
Figure 20-1 SNMP Management Model ...................................................................................................... 20-2
Figure 20-2 Menu 22: SNMP Configuration................................................................................................ 20-3
Figure 21-1 Menu 24: System Maintenance ................................................................................................ 21-1
Figure 21-2 Menu 24.1: System Maintenance: Status (ZyWALL 100)....................................................... 21-2
Figure 21-3 Menu 24.2: System Information and Console Port Speed ........................................................ 21-3
Figure 21-4 Menu 24.2.1: System Maintenance: Information (ZyWALL 10W).......................................... 21-4
Figure 21-5 Menu 24.2.2: System Maintenance: Change Console Port Speed ............................................ 21-5
Figure 21-6 Menu 24.3: System Maintenance: Log and Trace .................................................................... 21-6
Figure 21-7 Examples of Error and Information Messages ......................................................................... 21-6
Figure 21-8 Menu 24.3.2: System Maintenance: UNIX Syslog (ZyWALL 100)......................................... 21-7
Figure 21-9 Call-Triggering Packet Example ............................................................................................ 21-10
Figure 21-10 Menu 24.4: System Maintenance: Diagnostic.......................................................................21-11
Figure 21-11 WAN & LAN DHCP ............................................................................................................ 21-12
Figure 22-1 Telnet into Menu 24.5............................................................................................................... 22-3
Figure 22-2 FTP Session Example ............................................................................................................... 22-4
Figure 22-3 System Maintenance: Backup Configuration........................................................................... 22-7
Figure 22-4 System Maintenance: Starting Xmodem Download Screen..................................................... 22-7
Figure 22-5 Backup Configuration Example ............................................................................................... 22-7
Figure 22-6 Successful Backup Confirmation Screen.................................................................................. 22-7
Figure 22-7 Telnet into Menu 24.6............................................................................................................... 22-9
Figure 22-8 Restore Using FTP Session Example ..................................................................................... 22-10
Figure 22-9 System Maintenance: Restore Configuration......................................................................... 22-10
Figure 22-10 System Maintenance: Starting Xmodem Download Screen ................................................. 22-10
List of Figures xxi
Figure 22-11 Restore Configuration Example ............................................................................................22-11
Figure 22-12 Successful Restoration Confirmation Screen........................................................................ 22-11
Figure 22-13 Telnet Into Menu 24.7.1: Upload System Firmware .............................................................22-12
Figure 22-14 Telnet Into Menu 24.7.2: System Maintenance.....................................................................22-13
Figure 22-15 FTP Session Example of Firmware File Upload ...................................................................22-14
Figure 22-16 Menu 24.7.1 as seen using the Console Port.........................................................................22-16
Figure 22-17 Example Xmodem Upload....................................................................................................22-17
Figure 22-18 Menu 24.7.2 as seen using the Console Port.........................................................................22-18
Figure 22-19 Example Xmodem Upload....................................................................................................22-19
Figure 23-1 Command Mode in Menu 24 ....................................................................................................23-1
Figure 23-2 Valid Commands .......................................................................................................................23-2
Figure 23-3 Call Control...............................................................................................................................23-2
Figure 23-4 Budget Management .................................................................................................................23-3
Figure 23-5 Call History...............................................................................................................................23-4
Figure 23-6 Menu 24: System Maintenance.................................................................................................23-5
Figure 23-7 Menu 24.10 System Maintenance: Time and Date Setting .......................................................23-6
Figure 24-1 Telnet Configuration on a TCP/IP Network .............................................................................. 24-1
Figure 24-2 Menu 24.11 – Remote Management Control ............................................................................24-3
Figure 25-1 Application-based Bandwidth Management Example ..............................................................25-3
Figure 25-2 Subnet-based Bandwidth Management Example ......................................................................25-3
Figure 25-3 Application and Subnet-based Bandwidth Management Example............................................25-4
Figure 25-4 Bandwidth Allotment Example .................................................................................................25-6
Figure 25-5 Maximize Bandwidth Usage Example......................................................................................25-7
Figure 25-6 Bandwidth Borrowing Example................................................................................................25-9
Figure 25-7 Bandwidth Manager: Summary .............................................................................................. 25-11
Figure 25-8 Bandwidth Manager: Class Setup ...........................................................................................25-13
Figure 25-9 Bandwidth Manager: Class Configuration..............................................................................25-14
xxii List of Figures
Figure 25-10 Bandwidth Management Statistics ....................................................................................... 25-16
Figure 25-11 Bandwidth Manager Monitor ............................................................................................... 25-18
Figure 26-2 IP Routing Policy Setup ........................................................................................................... 26-2
Figure 26-4 Menu 25.1: Sample IP Routing Policy Setup ...........................................................................26-3
Figure 26-5 IP Routing Policy ..................................................................................................................... 26-4
Figure 26-6 Menu 3.2: TCP/IP and DHCP Ethernet Setup .......................................................................... 26-6
Figure 26-7 Example of IP Policy Routing .................................................................................................. 26-7
Figure 26-8 IP Routing Policy Example ...................................................................................................... 26-8
Figure 26-9 IP Routing Policy ..................................................................................................................... 26-9
Figure 26-10 Applying IP Policies ............................................................................................................. 26-10
Figure 27-1 Menu 26 - Schedule Setup........................................................................................................ 27-1
Figure 27-2 Schedule Set Setup ................................................................................................................... 27-2
Figure 27-3 Applying Schedule Set(s) to a Remote Node (PPPoE)............................................................. 27-4
Figure 27-4 Applying Schedule Set(s) to a Remote Node (PPTP)............................................................... 27-5
Figure 28-1 Encryption and Decryption....................................................................................................... 28-2
Figure 28-2 VPN Application ...................................................................................................................... 28-3
Figure 28-3 IPSec Architecture .................................................................................................................... 28-4
Figure 28-4 Transport and Tunnel Mode IPSec Encapsulation.................................................................... 28-5
Figure 29-1 VPN SMT Menu Tree............................................................................................................... 29-1
Figure 29-2 Menu 27: VPN/IPSec Setup ..................................................................................................... 29-2
Figure 29-3 IPSec Summary Fields ............................................................................................................. 29-3
Figure 29-4 Telecommuter’s ZyWALL Configuration.................................................................................29-7
Figure 29-5 Headquarters ZyWALL Configuration ..................................................................................... 29-7
Figure 29-6 Menu 27.1: IPSec Summary..................................................................................................... 29-8
Figure 29-7 Menu 27.1.1: IPSec Setup ...................................................................................................... 29-12
Figure 29-8 Two Phases to Set Up the IPSec SA....................................................................................... 29-17
Figure 29-9 Menu 27.1.1.1: IKE Setup...................................................................................................... 29-19
List of Figures xxiii
Figure 29-10 Menu 27.1.1.2: Manual Setup ...............................................................................................29-22
Figure 30-1 Menu 27.2: SA Monitor ............................................................................................................30-1
xxiv List of Figures
List of Tables
Table 1-1 Model Specific Features................................................................................................................. 1-1
Table 2-1 LED Descriptions........................................................................................................................... 2-2
Table 2-2 LAN Port Connections With an Uplink Button ............................................................................. 2-7
Table 3-1 Main Menu Commands.................................................................................................................. 3-2
Table 3-2 Main Menu Summary .................................................................................................................... 3-3
Table 4-1 General Setup Menu Field ............................................................................................................. 4-2
Table 4-2 Configure Dynamic DNS Menu Fields.......................................................................................... 4-3
Table 5-1 MAC Address Cloning in WAN Setup........................................................................................... 5-2
Table 5-2 Menu 2: Dial Backup Setup ........................................................................................................... 5-3
Table 5-3 Advanced WAN Port Setup: AT Commands Fields ....................................................................... 5-5
Table 5-4 Advanced WAN Port Setup: Call Control Parameters ................................................................... 5-6
Table 5-5 Fields in Menu 11.1 Remote Node Profile (Backup ISP) .............................................................. 5-7
Table 5-6 Remote Node Network Layer Options Menu Fields.....................................................................5-11
Table 5-7 Remote Node Script Menu Fields ................................................................................................ 5-14
Table 6-1 Example Of Network Properties For LAN Servers With Fixed IP Addresses ............................... 6-3
Table 6-2 Private IP Address Ranges ............................................................................................................. 6-4
Table 6-3 DHCP Ethernet Setup Menu Fields................................................................................................ 6-7
Table 6-4 LAN TCP/IP Setup Menu Fields.................................................................................................... 6-7
Table 6-5 IP Alias Setup Menu Fields............................................................................................................ 6-9
Table 6-6 Wireless LAN Setup Menu Fields................................................................................................ 6-12
Table 7-1 Wireless LAN................................................................................................................................. 7-3
Table 7-2 Wireless LAN 802.1X Authentication ........................................................................................... 7-6
Table 7-3 Authentication RADIUS ................................................................................................................ 7-7
Table 7-4 Local User Database .................................................................................................................... 7-10
Table 7-5 WLAN MAC Address Filter .........................................................................................................7-11
List of Tables xxv
Table 9-1 Menu 4: Internet Access Setup Menu Fields ..................................................................................9-1
Table 9-2 New Fields in Menu 4 (PPTP) Screen ............................................................................................9-3
Table 9-3 New Fields in Menu 4 (PPPoE) screen...........................................................................................9-5
Table 10-1 Fields in Menu 11.1 ....................................................................................................................10-2
Table 10-2 Fields in Menu 11.1 (PPPoE Encapsulation Specific)................................................................10-5
Table 10-3 Fields in Menu 11.1 (PPTP Encapsulation) ................................................................................ 10-6
Table 10-4 Remote Node Network Layer Options Menu Fields...................................................................10-7
Table 10-5 Remote Node Network Layer Options Menu Fields...................................................................10-9
Table 10-6 Menu 11.1: Remote Node Profile (Traffic Redirect Field) .......................................................10-14
Table 10-7 Traffic Redirect Setup...............................................................................................................10-14
Table 11-1 IP Static Route Menu Fields .......................................................................................................11-3
Table 12-1 NAT Definitions..........................................................................................................................12-1
Table 12-2 NAT Mapping Types...................................................................................................................12-5
Table 12-3 Applying NAT in Menus 4 & 11.3..............................................................................................12-8
Table 12-4 SUA Address Mapping Rules ...................................................................................................12-10
Table 12-5 Fields in Menu 15.1.1 ...............................................................................................................12-12
Table 12-6 Menu 15.1.1.1: Editing/Configuring an Individual Rule in a Set .............................................12-13
Table 12-7 Services & Port Numbers .........................................................................................................12-14
Table 12-8 Menu 15.3—Trigger Port Setup Description............................................................................12-27
Table 13-1 Common IP Ports........................................................................................................................13-4
Table 13-2 ICMP Commands That Trigger Alerts........................................................................................13-6
Table 13-3 Legal NetBIOS Commands ........................................................................................................ 13-7
Table 13-4 Legal SMTP Commands.............................................................................................................13-7
Table 15-1 Attack Alert.................................................................................................................................15-5
Table 16-1 Firewall Rules Summary: First Screen .......................................................................................16-6
Table 16-2 Predefined Services ....................................................................................................................16-8
Table 16-3 Creating/Editing A Firewall Rule .............................................................................................16-12
xxvi List of Tables
Table 16-4 Adding/Editing Source and Destination Addresses.................................................................. 16-15
Table 16-5 Creating/Editing A Custom Port............................................................................................... 16-16
Table 17-1 Content Filter: Categories .......................................................................................................... 17-2
Table 17-2 Content Filter: Free .................................................................................................................... 17-6
Table 17-3 Content Filter: iCard .................................................................................................................. 17-7
Table 17-4 Content Filter: List Update ........................................................................................................ 17-9
Table 17-5 Content Filter: Exempt Zone.................................................................................................... 17-10
Table 17-6 Content Filter: Customize ........................................................................................................ 17-12
Table 17-7 Content Filter: Domain Name .................................................................................................. 17-14
Table 18-1 View Log.................................................................................................................................... 18-2
Table 18-2 Log Settings Screen ................................................................................................................... 18-5
Table 19-1 Abbreviations Used in the Filter Rules Summary Menu............................................................ 19-5
Table 19-2 Rule Abbreviations Used ........................................................................................................... 19-6
Table 19-3 TCP/IP Filter Rule Menu Fields................................................................................................. 19-7
Table 19-4 Generic Filter Rule Menu Fields.............................................................................................. 19-12
Table 20-1 SNMP Configuration Menu Fields............................................................................................. 20-3
Table 20-2 SNMP Traps............................................................................................................................... 20-4
Table 21-1 System Maintenance: Status Menu Fields.................................................................................. 21-2
Table 21-2 Fields in System Maintenance: Information .............................................................................. 21-4
Table 21-3 System Maintenance Menu Syslog Parameters.......................................................................... 21-7
Table 21-4 System Maintenance Menu Diagnostic.................................................................................... 21-12
Table 22-1 Filename Conventions................................................................................................................ 22-2
Table 22-2 General Commands for GUI-based FTP Clients........................................................................ 22-4
Table 22-3 General Commands for GUI-based TFTP Clients ..................................................................... 22-6
Table 23-1 Budget Management .................................................................................................................. 23-3
Table 23-2 Call History Fields ..................................................................................................................... 23-4
Table 23-3 Time and Date Setting Fields..................................................................................................... 23-6
List of Tables xxvii
Table 24-1 Menu 24.11 – Remote Management Control..............................................................................24-3
Table 25-1 Application and Subnet-based Bandwidth Management Example .............................................25-4
Table 25-2 Bandwidth Manager: Summary ................................................................................................25-12
Table 25-3 Bandwidth Manager: Class Setup.............................................................................................25-13
Table 25-4 Bandwidth Manager: Class Configuration................................................................................25-14
Table 25-5Services and Port Numbers........................................................................................................25-16
Table 25-6 Bandwidth Management Statistics............................................................................................25-17
Table 25-7 Bandwidth Manager Monitor....................................................................................................25-18
Table 26-1 IP Routing Policy Setup..............................................................................................................26-3
Table 26-2 IP Routing Policy........................................................................................................................26-4
Table 27-1Schedule Set Setup Fields............................................................................................................27-2
Table 28-1 VPN and NAT.............................................................................................................................28-6
Table 29-1 AH and ESP................................................................................................................................29-3
Table 29-2 Local Fields ................................................................................................................................29-4
Table 29-3 Peer Fields ..................................................................................................................................29-5
Table 29-4 Matching ID Type and Content Configuration Example ............................................................29-5
Table 29-5 Mismatching ID Type and Content Configuration Example.......................................................29-6
Table 29-6 Telecommuter and Headquarters Configuration Example ..........................................................29-7
Table 29-7 Menu 27.1: IPSec Summary .......................................................................................................29-8
Table 29-8 Menu 27.1.1: IPSec Setup.........................................................................................................29-12
Table 29-9 Menu 27.1.1.1: IKE Setup ........................................................................................................29-19
Table 29-10 Active Protocol: Encapsulation and Security Protocol ........................................................... 29-21
Table 29-11 Menu 27.1.1.2: Manual Setup.................................................................................................29-22
Table 30-1 Menu 27.2: SA Monitor..............................................................................................................30-2
Table 31-1 Troubleshooting the Start-Up of your ZyWALL..............................................................................1
Table 31-2 Troubleshooting the LAN Interface................................................................................................. 2
Table 31-3 Troubleshooting the LAN Interface................................................................................................. 2
xxviii List of Tables
Table 31-4 Troubleshooting the WAN interface................................................................................................. 3
Table 31-5 Troubleshooting Internet Access......................................................................................................3
Table 31-6 Troubleshooting the Password .........................................................................................................4
Table 31-7 Troubleshooting Telnet.....................................................................................................................4
List of Tables xxix
Preface
About Your ZyWALL
Congratulations on your purchase of the ZyWALL 10, 10W, 50 or 100 Internet Security Gateway.
About This User's Manual
This manual is designed to guide you through the configuration of your ZyWALL for its various applications. Primarily SMT menus are shown, but web configurator screens are shown for features that do not have SMT menus or the recommendation is to configure via web configurator. This manual may refer to the ZyWALL 10/10W/50/100 Internet Security Gateway as the ZyWALL. This manual covers the ZyWALL 10, 10W, 50 and 100 models. Supported features and the details of the features, vary from model to model. Not every feature applies to every model; refer to the Model Comparison Chart in chapter 1 to see what features are specific to your ZyWALL model.
Related Documentation
Support Disk
Refer to the included CD for support documents.
Read Me First
The Read Me First is designed to help you get up and running right away. It contains a detailed easy-to-follow connection diagram, default settings, handy checklists and 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.
Packing List Card
The Packing List Card lists all items that should have come in the package.
Certifications
Refer to the product page at www.zyxel.com
ZyXEL Glossary and Web Site Please refer to www.zyxel.com
documentation.
for an online glossary of networking terms and additional support
for information on product certifications.
Syntax Conventions
• “Enter” means for you to type one or more characters and press the carriage return. “Select” or “Choose” means for you to use one of the predefined choices.
• The SMT menu titles and labels are in Bold Times New Roman font.
• The choices of a menu item are in Bold Arial font.
• A single keystroke is in Arial font and enclosed in square brackets, for instance, [ENTER] means the
Enter, or carriage return, key; [ESC] means the escape key and [SPACE BAR] means the space bar. [UP] and [DOWN] are the up and down arrow keys.
xxx Preface
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