ZyXEL Communications Prestige 941 User manual

Prestige 941
DOSCIS Based
Cable Router
User's Guide
Version 2.70
September, 2001

Prestige 941 Cable Router
ii
Prestige 941
Cable Router
COPYRIGHT
Copyright © 2001by 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.

Prestige 941 Cable Router
FCC Interference Statement iii
Federal Communications Commission (FCC) Interference Statement
This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:
l This device may not cause harmful interference.
l 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:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and the receiver.
3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
4. 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
Shielded RS-232C cables are required to be used to ensure compliance with FCC Part 15, and it is the responsibility of the
user to provide and use shielded RS-232C cables.

Prestige 941 Cable Router
iv

Prestige 941 Cable Router
v
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; 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.
Online Registration
Do not forget to register your Prestige (fast, easy online registration) at www.zyxel.com for free future product updates
and information.

Prestige 941 Cable Router
vi
Customer Support
If you have questions about your ZyXEL product or desire assistance, contact ZyXEL Communications
Corporation offices worldwide, in one of the following ways:
METHOD
LOCATION
E-MAIL –
SUPPORT/SALES
TELEPHONE/FAX WEB SITE/FTP SITE REGULAR MAIL
[email protected]
[email protected]
[phone] www.zyxel.com
www.europe.zyxel.com
[email protected] [phone] ftp.europe.zyxel.com
ZyXEL
Communications
Corp., 6 Innovation
Road II, Science-
Based Industrial Park,
HsinChu, Taiwan.
WORLDWIDE
[email protected] [phone]
[phone] www.zygate.com.tw
ftp.zygate.com.tw
ZyGATE
Communications,
Inc., 2F, No.48, Lung-
Chin Road, Lung-Tan,
Taoyuan, Taiwan.
[email protected] [phone]
800-255-4101 www.zyxel.com NORTH
AMERICA [email protected] [phone] ftp.zyxel.com
ZyXEL
Communications,
Inc., 1650 Miraloma
Avenue, Placentia,
CA 92870, U.S.A.
[email protected] [phone] www.zyxel.dk
SCANDINAVIA [email protected] [phone] ftp.zyxel.dk
ZyXEL
Communications A/S,
Columbusvej 5, 2860
Soeborg, Denmark.
[email protected] [phone]
0810-1-ZyXEL
0810-1-99935
www.zyxel.at
AUSTRIA
[email protected] [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.
[email protected]e+49-2405-6909-0
0180-5213247
Tech Support hotline
0180-5099935
RMA/Repair hotline
www.zyxel.de
GERMANY
[email protected] [phone] ftp.europe.zyxel.com
ZyXEL Deutschland
GmbH.,
Adenauerstr. 20/A4
D-52146 Wuerselen,
Germany.

Prestige 941 Cable Router
Table of Contents vii
Table of Contents
Table of Contents.........................................................................................................................vii
List of Figures...............................................................................................................................xi
List of Tables...............................................................................................................................xiii
Preface........................................................................................................................................xiv
Getting to Know Your Cable Router.......................................................................................... 1-1
1.1 Overview of the Prestige 941 Cable Router.................................................................. 1-1
1.2 Bridge and Router........................................................................................................ 1-1
1.3 Key Features of the Prestige 941 Cable Router............................................................ 1-2
1.4 Internet Access Applications for Prestige 941............................................................... 1-3
1.5 Product Specifications.................................................................................................. 1-6
Hardware Installation and Initial Setup..................................................................................... 2-1
2.1 Front Panel LEDs and Back Panel Ports....................................................................... 2-1
2.1.1 Front Panel LEDs................................................................................................................................2-1
2.1.2 Prestige 941 Rear Panel and Connections.........................................................................................2-2
2.2 Additional Installation Requirements............................................................................. 2-3
2.3 Initializing the Cable Modem......................................................................................... 2-3
2.4 Network Configuration of Your Computer...................................................................... 2-5
2.5 Router Configuration.................................................................................................... 2-5
2.6 Power On Your Prestige............................................................................................... 2-6
2.7 Navigating the SMT Interface....................................................................................... 2-8
2.7.1 Main Menu ..........................................................................................................................................2-9
2.7.2 System Management Terminal Interface Summary..........................................................................2-9

Prestige 941 Cable Router
viii Table of Contents
2.8 Changing the System Password................................................................................. 2-10
2.9 General Setup............................................................................................................ 2-10
2.10 LAN Setup.................................................................................................................. 2-12
2.10.1 LAN Port Filter Setup.......................................................................................................................2-12
2.11 Protocol Dependent LAN Setup.................................................................................. 2-12
2.12 Diagnostics Facility for Bridge Mode........................................................................... 2-13
2.12.1 Prestige 941 Web Pages....................................................................................................................2-14
2.13 Stacking ZyXEL Cable Routers................................................................................... 2-17
Internet Access.......................................................................................................................... 3-1
3.1TCP/IP and DHCP for LAN........................................................................................... 3-1
3.1.1 Factory LAN Defaults.........................................................................................................................3-1
3.1.2 IP Address and Subnet Mask..............................................................................................................3-1
3.1.3 RIP Setup.............................................................................................................................................3-2
3.1.4 DHCP Configuration...........................................................................................................................3-3
3.2 TCP/IP and DHCP Ethernet Setup................................................................................ 3-4
3.3 Internet Access Setup .................................................................................................. 3-6
3.4 Cable Port Filter........................................................................................................... 3-8
3.5 Single User Account..................................................................................................... 3-8
3.5.1 Advantages of SUA.............................................................................................................................3-9
3.5.2 Single User Account Configuration.................................................................................................3-10
IP Static Route Setup................................................................................................................. 4-1
4.1 IP Static Route Setup................................................................................................... 4-2
Multiple SUA Servers................................................................................................................. 5-1
5.1 Multiple Servers Behind SUA........................................................................................ 5-1

Prestige 941 Cable Router
Table of Contents ix
5.1.1 Configuring a Server Behind SUA....................................................................................................5-1
Filter Configuration.................................................................................................................... 6-1
6.1 About Filtering.............................................................................................................. 6-1
6.2 Configuring a Filter Set................................................................................................. 6-3
6.2.1 Filter Rules Summary Menu ..............................................................................................................6-4
6.2.2 Configuring a Filter Rule....................................................................................................................6-5
6.3 Filter Types and SUA.................................................................................................... 6-6
6.3.1 TCP/IP Filter Rule...............................................................................................................................6-6
6.3.2 Generic Filter Rule............................................................................................................................6-10
6.4 Applying a Filter and Factory Defaults......................................................................... 6-12
6.4.1 Ethernet Traffic .................................................................................................................................6-12
6.4.2 Cable Port Filters...............................................................................................................................6-12
System Maintenance ................................................................................................................. 7-1
7.1 System Status.............................................................................................................. 7-1
7.2 System Information and Console Port Speed................................................................ 7-4
7.2.1 System Information.............................................................................................................................7-4
7.2.2 Console Port Speed .............................................................................................................................7-5
7.3 Log and Trace.............................................................................................................. 7-5
7.3.1 Viewing Error Log..............................................................................................................................7-5
7.4 Diagnostic.................................................................................................................... 7-6
7.5 Backup Configuration................................................................................................... 7-7
7.6 Restore Configuration................................................................................................... 7-8
7.7 Upload Firmware.......................................................................................................... 7-8
7.7.1 Uploading the Router Firmware.........................................................................................................7-9

Prestige 941 Cable Router
xTable of Contents
7.7.2 Uploading Router Configuration File................................................................................................7-9
7.7.3 TFTP Transfer ...................................................................................................................................7-10
7.8 Command Interpreter Mode........................................................................................ 7-12
7.9 Boot Commands......................................................................................................... 7-12
Telnet Configuration and Capabilities ...................................................................................... 8-1
8.1 About Telnet Configuration ........................................................................................... 8-1
8.2 Telnet Under SUA......................................................................................................... 8-2
8.3 Telnet Capabilities........................................................................................................ 8-2
8.3.1 Single Administrator...........................................................................................................................8-2
8.3.2 System Timeout...................................................................................................................................8-2
Troubleshooting......................................................................................................................... 9-1
9.1 Problems Starting Up the Prestige................................................................................ 9-1
9.2 Problems With the Coaxial Cable ................................................................................. 9-1
9.3 Problems With the LAN Interface.................................................................................. 9-2
9.4 Problems With Internet Access..................................................................................... 9-2
Glossary........................................................................................................................................A
Hardware Specifications..............................................................................................................H
Power Adaptor Specifications........................................................................................................I
Index...............................................................................................................................................J