ZyXEL Communications Prestige 642 User manual

Prestige 642
ADSL Bridge
User's Guide
Version 2.50
(September 2000)

Prestige 642 ADSL Bridge
ii Copyright
ADSL Bridge
Copyright
Copyright ©2000 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 patents' 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. ZyNOS is a registered trademark of ZyXEL Communications Corporation.

Prestige 642 ADSL Bridge
CE iii

Prestige 642 ADSL Bridge
iv CE

Prestige 642 ADSL Bridge
FCC v

Prestige 642 ADSL Bridge
vi FCC
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.
Notice 2
Use of shielded RS-232 cables is required to ensure compliance with FCC Part 15, and it is the
responsibility of the user to provide and use shielded RS-232 cables.

Prestige 642 ADSL Bridge
Limited Warranty vii
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 (2) 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; refer to the separate Warranty
Card 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 (USA and territories only). If the customer desires some other
return destination beyond the U.S. borders, the customer shall bear the cost of the return shipment. This
warranty gives you specific legal rights, and you may also have other rights that vary from state to state.
Please register your Prestige (fast, easy online registration at www.zyxel.com) for free future product
updates and information.

Prestige 642 ADSL Bridge
viii Customer Support
Customer Support
If you have questions about your ZyXEL product(s) or desire assistance, please contact ZyXEL
Communications Corporation offices worldwide, in any one of the following ways. Our ftp sites are also
available for software and ROM upgrades.
EMAIL – Support Telephone Web Site
Method
Region EMAIL – Sales Fax FTP Site
Regular Mail
[e-mail]
[e-mail]
[phone] www.zyxel.com
www.europe.zyxel.com
Worldwide
[e-mail] [phone] ftp.europe.zyxel.com
ZyXEL Communications
Corp., 6 Innovation Road
II, Science-Based
Industrial Park, HsinChu,
Taiwan.
[e-mail] [phone]
800-255-4101
www.zyxel.com
North America
[e-mail] [phone] ftp.zyxel.com
ZyXEL Communications
Inc., 1650 Miraloma
Avenue, Placentia, CA
92870, U.S.A.
[e-mail] [phone] www.zyxel.dk
Scandinavia
[e-mail] [phone] ftp.zyxel.dk
ZyXEL Communications
A/S, Columbusvej 5, 2860
Soeborg, Denmark.
[e-mail] [phone]
0810-1-ZyXEL
0810-1-99935
www.zyxel.at
Austria [e-mail] [phone] ftp.zyxel.at
Note: for Austrian users with
*.at domain only!
ZyXEL Communications
Services GmbH.,
Thaliastrasse 125a/2/2/4,
A-1160 Vienna, Austria
[e-mail] [phone]
0180-5213247
Tech Support hotline
0180-5099935
RMA/Repair hotline
www.zyxel.de
Germany
[e-mail] [phone] ftp.europe.zyxel.com
ZyXEL Deutschland
GmbH., Adenauerstr.
20/A4, D-52146
Wuerselen, Germany.

Prestige 642 ADSL Bridge
Table of Contents ix
Table of Contents
Customer Support ............................................................................................................viii
Table of Contents ...............................................................................................................ix
List of Figures.................................................................................................................. xii
List of Tables....................................................................................................................xiv
Preface...............................................................................................................................xv
Structure of this Manual .................................................................................................xvi
What is DSL? ..................................................................................................................xvii
Chapter 1 Getting to Know Your ADSL Bridge ................................................................ 1-1
1.1 The Prestige 642 ADSL Bridge ....................................................................................................1-1
1.2 Features of the Prestige 642..........................................................................................................1-1
1.3 Applications for the Prestige 642 .................................................................................................1-2
1.3.1 Internet Access .......................................................................................................................1-2
1.3.2 LAN to LAN Application.......................................................................................................1-3
Chapter 2 Hardware Installation & Initial Setup.......................................................... 2-1
2.1 Front Panel LEDs of the P642......................................................................................................2-1
2.2 Rear Panel and Connections of the P642 ....................................................................................2-1
2.3 Additional Installation Requirements .........................................................................................2-2
2.4 Connecting a POTS Splitter .........................................................................................................2-3
2.5 Telephone Microfilters..................................................................................................................2-4
2.6 Special Note for P642 ISDN Users ...............................................................................................2-4
2.7 Power Up Your Prestige ...............................................................................................................2-5
2.8 Navigating the SMT Interface......................................................................................................2-7
2.8.1 System Management Terminal Interface Summary ...............................................................2-8
2.9 Changing the System Password ...................................................................................................2-8
2.10 General Setup............................................................................................................................2-9

Prestige 642 ADSL Bridge
xTable of Contents
Chapter 3 Internet Access ...............................................................................................3-1
3.1 Factory Ethernet Defaults ............................................................................................................ 3-1
3.2 TCP/IP Parameters....................................................................................................................... 3-1
3.2.1 IP Address and Subnet Mask.................................................................................................. 3-1
3.2.2 Private IP Addresses............................................................................................................... 3-1
3.3 TCP/IP Ethernet Setup................................................................................................................. 3-2
3.4 LANs & WANs.............................................................................................................................. 3-3
3.4.1 LANs, WANs and the Prestige............................................................................................... 3-3
3.5 VPI & VCI..................................................................................................................................... 3-3
3.6 Multiplexing .................................................................................................................................. 3-3
3.6.1 VC-based multiplexing .......................................................................................................... 3-4
3.6.2 LLC-based multiplexing ........................................................................................................ 3-4
3.7 Encapsulation ................................................................................................................................ 3-4
3.7.1 PPP......................................................................................................................................... 3-4
3.7.2 RFC 1483 ............................................................................................................................... 3-4
3.8 Internet Access Configuration ..................................................................................................... 3-4
Chapter 4 Remote Node Configuration ..........................................................................4-1
4.1 Remote Node Setup....................................................................................................................... 4-1
4.1.1 Remote Node Profile.............................................................................................................. 4-1
4.1.2 Encapsulation & Multiplexing Scenarios............................................................................... 4-2
Chapter 5 Filter Configuration.......................................................................................5-1
5.1 About Filtering .............................................................................................................................. 5-1
5.2 Configuring a Filter Set................................................................................................................ 5-3
5.2.1 Filter Rules Summary Menu ..................................................................................................5-4
5.3 Configuring a Filter Rule ............................................................................................................. 5-5
5.3.1 Generic Filter Rule ................................................................................................................. 5-5
5.4 Example Filter............................................................................................................................... 5-7
5.5 Applying a Filter ........................................................................................................................... 5-9
5.5.1 Remote Node Filters............................................................................................................... 5-9
Chapter 6 System Maintenance ......................................................................................6-1
6.1 System Status................................................................................................................................. 6-1
6.1.1 Console Port Speed ................................................................................................................ 6-4

Prestige 642 ADSL Bridge
Table of Contents xi
6.2 Diagnostic.......................................................................................................................................6-5
6.3 Filename conventions....................................................................................................................6-6
6.3.1 Resetting the Prestige .............................................................................................................6-7
6.4 Backup Configuration...................................................................................................................6-7
6.5 Restore Configuration...................................................................................................................6-8
6.6 Upload Firmware ..........................................................................................................................6-9
6.6.1 Upload System Firmware .....................................................................................................6-10
6.6.2 Uploading System Configuration File ..................................................................................6-11
6.7 TFTP Transfer ............................................................................................................................6-11
6.7.1 Example TFTP Command ....................................................................................................6-12
6.8 Command Interpreter Mode......................................................................................................6-13
6.9 Boot module commands..............................................................................................................6-13
Chapter 7 Troubleshooting............................................................................................. 7-1
7.1 Problems Starting Up the Prestige...............................................................................................7-1
7.2 Problems With the WAN Interface..............................................................................................7-2
7.3 Problems with the LAN Interface................................................................................................7-2
7.4 Problems Connecting to a Remote Node or ISP .........................................................................7-2
Glossary.............................................................................................................................. A
Appendix.............................................................................................................................G
Index...................................................................................................................................H

Prestige 642 ADSL Bridge
xii List of Figures
List of Figures
Figure 1-1 Internet Access Application .......................................................................................................1-2
Figure 1-2 LAN-to-LAN Application ...........................................................................................................1-3
Figure 2-1 Prestige 642 Front Panel...........................................................................................................2-1
Figure 2-2 Prestige 642 Rear Panel ............................................................................................................2-2
Figure 2-3 Connecting a POTS Splitter.......................................................................................................2-3
Figure 2-4 Connecting a Microfilter............................................................................................................2-4
Figure 2-5 P642 with ISDN .........................................................................................................................2-5
Figure 2-6 Power-On Display .....................................................................................................................2-5
Figure 2-7 Login Screen ..............................................................................................................................2-6
Figure 2-8 SMT Main Menu ........................................................................................................................2-8
Figure 2-9 Menu 23.1 - System Password ...................................................................................................2-9
Figure 2-10 Menu 1 - General Setup ...........................................................................................................2-9
Figure 3-1 Menu 3 - TCP/IP Ethernet Setup ...............................................................................................3-2
Figure 3-2 LAN & WAN...............................................................................................................................3-3
Figure 3-3 Internet Access Setup .................................................................................................................3-5
Figure 4-1 Menu 11 - Remote Node Setup...................................................................................................4-1
Figure 4-2 Menu 11.1 Remote Node Profile ................................................................................................4-2
Figure 5-1 Filter Rule Process ....................................................................................................................5-2
Figure 5-2 Menu 21 - Filter Set Configuration............................................................................................5-3
Figure 5-3 Filter Rules Summary ................................................................................................................5-4
Figure 5-4 Menu 21.1.2 - Generic Filter Rule.............................................................................................5-6
Figure 5-5 Example Filter - Menu 21.1.1 ....................................................................................................5-8
Figure 5-6 Example Filter Rules Summary - Menu 21.3 .............................................................................5-9
Figure 5-7 Filtering Remote Node traffic ..................................................................................................5-10
Figure 6-1 Menu 24 - System Maintenance .................................................................................................6-1
Figure 6-2 Menu 24.1 - System Maintenance - Status ................................................................................6-2

Prestige 642 ADSL Bridge
List of Figures xiii
Figure 6-3 System Information and Console Port Speed ............................................................................6-3
Figure 6-4 System Maintenance - Information............................................................................................ 6-4
Figure 6-5 Menu 24.2.2 - System Maintenance - Console Port Speed........................................................ 6-5
Figure 6-6 Menu 24.4 - System Maintenance - Diagnostic......................................................................... 6-5
Figure 6-7 Backup Configuration ............................................................................................................... 6-8
Figure 6-8 HyperTerminal Screen .............................................................................................................. 6-8
Figure 6-9 Successful Backup ..................................................................................................................... 6-8
Figure 6-10 Restore Configuration ............................................................................................................. 6-9
Figure 6-11 HyperTerminal Screen ............................................................................................................ 6-9
Figure 6-12 Successful Backup ................................................................................................................... 6-9
Figure 6-13 Menu 24.7 - System Maintenance - Upload Firmware.......................................................... 6-10
Figure 6-14 Menu 24.7.1 - Upload System Firmware............................................................................... 6-10
Figure 6-15 Menu 24.7.2 - System Maintenance - Upload System Configuration File ............................ 6-11
Figure 6-16 Command mode..................................................................................................................... 6-13
Figure 6-17 Boot module commands ........................................................................................................ 6-14
Diagram 1 VPI's & VCI's. ............................................................................................................................. G

Prestige 642 ADSL Bridge
xiv List of Tables
List of Tables
Table 2-1 Front Panel LED Description......................................................................................................2-1
Table 2-2 Main Menu Commands................................................................................................................2-7
Table 2-3 Main Menu Summary...................................................................................................................2-8
Table 2-4 General Setup Menu Fields .......................................................................................................2-10
Table 3-1 TCP/IP Ethernet Setup Menu Fields ...........................................................................................3-2
Table 3-2 Internet Account Information ......................................................................................................3-5
Table 3-3 Internet Access Setup Menu Fields..............................................................................................3-6
Table 4-1 Remote Node Profile Menu Fields...............................................................................................4-3
Table 5-1 Abbreviations Used in the Filter Rules Summary Menu..............................................................5-4
Table 5-2 Abbreviations Used If Filter Type Is GEN...................................................................................5-5
Table 5-3 Generic Filter Rule Menu Fields .................................................................................................5-6
Table 6-1 System Maintenance - Status Menu Fields ..................................................................................6-3
Table 6-2 Fields in System Maintenance - Information ...............................................................................6-4
Table 6-3 System Maintenance Menu Diagnostic........................................................................................6-6
Table 6-4 Filename Conventions .................................................................................................................6-7
Table 6-5 Third Party TFTP Clients - General fields ................................................................................6-13
Table 7-1 Troubleshooting the Start-Up of your Prestige............................................................................7-1
Table 7-2 Troubleshooting the ADSL connection ........................................................................................7-2
Table 7-3 Troubleshooting the LAN Interface .............................................................................................7-2
Table 7-4 Troubleshooting a Connection to a Remote Node or ISP............................................................7-2

Prestige 642 ADSL Bridge
Preface xv
Preface
About Your ADSL Bridge
Congratulations on your purchase of the Prestige 642 ADSL Bridge.
The Prestige 642 is an ADSL bridge used for Internet access via an ADSL line. It can run upstream
maximum rate at 640kbps and downstream rate at 8Mbps. The rate selection depends on the copper
category, distance and central side configuration. We will refer to the Prestige 642 as the P642 or simply the
Prestige from now on.
The P642's 10/100M auto-negotiating LAN interface enables fast data transfer of either 10Mbps or
100Mbps in either half-duplex or full-duplex mode depending on your Ethernet network.
Your Prestige is easy to install and to configure. All functions of the Prestige are software configurable via
the SMT (System Management Terminal) Interface.
About This User's Guide
This user's guide covers all aspects of the Prestige 642 operations and shows you how to get the best out of
the multiple advanced features of your ADSL Internet Access Router using the SMT. It is designed to guide
you through the correct configuration of your Prestige 642 for various applications.
Syntax Conventions
•“Enter” means for you to type one or more characters and press the carriage return. “Select” or
“Choose” means for you to select one from the predefined choices.
•The SMT menu titles and labels are in Bold Times 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.
•For brevity’s sake, we will use “e.g.” as a shorthand for “for instance”, and “i.e.” as a shorthand for
“that is” or “in other words” throughout this manual

Prestige 642 ADSL Bridge
xvi Structure of the Manual
Structure of this Manual
The following section offers some background information on ADSL. Skip to Chapter 1 if you wish to
begin working with your router right away.
Getting Started (Chapters 1-2)
This helps you connect, install and setup your Prestige to operate
on your network.
The Internet (Chapter 3)
This shows you how to configure your Prestige for Internet access.
Remote Node (Chapters 4)
This shows you how to configure the remote nodes.
Management & Maintenance (Chapters 5-6)
This shows you how to create/apply filters and manage/maintain
your system.
Troubleshooting (Chapter 7)
This provides information about solving common problems.

Prestige 642 ADSL Bridge
xvii
What is xDSL ?
What is DSL?
DSL (Digital Subscriber Line) enhances the data capacity of the existing twisted-pair wire that runs
between the local telephone company switching offices and most homes and offices. While the wire itself
can handle higher frequencies, the telephone switching equipment is designed to cut off signals above 4,000
Hz to filter noise off the voice line, but now everybody is searching for ways to get more bandwidth to
improve access to the Web - hence DSL technologies!
There are actually seven types of DSL service, ranging in speeds from 16 Kbits/sec to 52 Mbits/sec. The
services are either symmetrical (traffic flows at the same speed in both directions), or asymmetrical (the
downstream capacity is higher than the upstream capacity). Asymmetrical services (ADSL) are suitable for
Internet users because more information is usually downloaded than uploaded. For example, a simple
button click in a web browser can start an extended download that includes graphics and text.
As data rates increase, the carrying distance decreases. That means that users who are beyond a certain
distance from the telephone company’s central office may not be able to obtain the higher speeds. A DSL
connection is a point-to-point dedicated circuit, meaning that the link is always up and there is no dialing
required.
What is ADSL?
It is an asymmetrical technology, meaning that the downstream data rate is much higher than the upstream
data rate. As mentioned, this works well for a typical Internet session in which more information is
downloaded, e.g., from Web servers, than is uploaded. ADSL operates in a frequency range that is above
the frequency range of voice services, so the two systems can operate over the same cable.

Prestige 642 ADSL Bridge
Getting to know your Prestige 1-1
Chapter 1
Getting to Know Your ADSL Bridge
This chapter describes the key features and applications of the Prestige 642.
1.1 The Prestige 642 ADSL Bridge
Your Prestige integrates a high-speed 10/100Mbps LAN interface and one high-speed ADSL port into a
single package. The Prestige is ideal for high-speed Internet browsing and making LAN-to-LAN
connections to remote networks.
1.2 Features of the Prestige 642
Your Prestige is packed with a number of features that give it the flexibility to provide a complete
networking solution for almost any user.
zEase of Installation
Your Prestige is designed for quick, intuitive and easy installation. Physically, its compact size and
lightweight make it easy to position anywhere in your busy office.
zHigh Speed Internet Access
The P642 ADSL Bridge can support downstream transmission rates of up to 8Mbps and upstream
transmission rates of 832 Kbps. The P642 also supports rate management. Rate management allows ADSL
subscribers to select an Internet access speed that best suit their needs and budget.
z10/100Mbps Fast Ethernet LAN Interface
The P642's 10/100M auto-negotiating LAN interface enables fast data transfer of either 10Mbps or
100Mbps in either half-duplex or full-duplex mode depending on your Ethernet network.
zProtocols Supported
PPP (Point-to-Point Protocol) Bridge link layer protocol.
♦Transparently bridging for unsupported network layer protocols.
zNetworking Compatibility
Your Prestige is compatible with the major ADSL DSLAM (Digital Subscriber Line Access Multiplexer)
providers, making configuration as simple as possible for you.
zMultiplexing
The Prestige 642 supports VC-based and LLC-based multiplexing.

Prestige 642 ADSL Bridge
1-2 Getting to know your Prestige
zEncapsulation
The Prestige 642 supports PPP (RFC 2364 - PPP over ATM Adaptation Layer 5) and RFC 1483
encapsulation over ATM.
zFull Network Management
♦Accessing SMT (System Management Terminal) through a telnet connection
zPAP and CHAP Security
The Prestige supports PAP (Password Authentication Protocol) and CHAP (Challenge Handshake
Authentication Protocol). CHAP is more secure since the password is scrambled prior to transmission.
However, PAP is readily available on more platforms.
zFilters
The Prestige's filtering functions allows added network security and management.
1.3 Applications for the Prestige 642
1.3.1 Internet Access
The Prestige is the ideal high-speed Internet access solution. Your Prestige supports the TCP/IP protocol,
which the Internet uses exclusively. It is compatible with all major ADSL DSLAM (Digital Subscriber
Line Access Multiplexer) providers. A DSLAM is a rack of ADSL line cards with data multiplexed into a
backbone network interface/connection (e.g., T1, OC3, DS3, ATM or Frame Relay). Think of it as the
equivalent of a modem rack for ADSL. A typical Internet Access application is shown below.
Figure 1-1 Internet Access Application