ZyXEL Communications Prestige100 User Manual

Prestige 100
User’s Manual
Version 3.0
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ZyXE L Li mi ted Warra nty
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 or character to the purchaser.
To obtain the services of this warranty, please 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
ii
legal rights, and you may also have other rights which vary from state to state.
Copyright © 1997 by ZyXEL
The contents of this book may not be reproduced (in any part or as a whole) or transmitted in any form or by any means without the written permission of the publisher.
Published by ZyXEL Communications Corporation. All rights reserved.
Note: 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 document is subject to change without notice.
Acknowledgments
Trademarks mentioned in this manual are used for informational purposes only.
Trademarks are properties of their respective owners.
FCC Part 15 Information
This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. 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
iii
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.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Shielded RS-232 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-232 cables.
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
iv
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.
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. The declarations of CE marking:
The Prestige 100 has been approved for connection to the Public Switched Telecommunication Network using interfaces compatible with ITU-TSS recommendation I.420 (Basic Rate ISDN user access). The Prestige 100 complies with the following directives:
v
1. The Council Directive 89/336/EEC of 3 May 1992 on the approximation of the laws of the member states relation to Electro Magnetic Compatibility. (EMC Directive)
2. Council Directive 91/263/EEC of 29 April 1991 on the approximation of the laws of the Member States concerning telecommunication terminal equipment. (The Telecom Terminal Equipment Directive)
3. 93/68/EEC of 22 July 1993 amending the Directives 89/336/EEC, 91/263 /EEC and 92/31/EEC.(Marking Directive)
The Council Directive 92/31/EEC of 28 April 1992 amending
directive on the approximation of the laws of the member states relating to Eletro Magnetic Compatibility.
Contacting Zy XEL
If you have questions about your ZyXEL product or desire assistance, contact ZyXEL Communications Corporation in one of the following ways:
Phone: In North America call between 8:00 AM and 5:00 PM PST at (714) 693-0808
Outside North America, you can dial +886-3-5783942 EXT
252 between 8:00AM and 5:00PM Taiwan time (GMT +8:00).
Fax: ZyXEL in North America: (714) 693-8811 or Taiwan: +886-3-5782439
E-mail:
Sales inquiries: sales@zyxel.com in North America
sales@zyxel.hinet.net outside North America.
Technical support: support@zyxel.com in North America
support@zyxel.hinet.net outside North America.
vi
Product information: Visit our site on the World Wide Web: http://www.zyxel.com.
FTP: Information, such as ZyXEL software and ROM updates for North America can be found at this FTP address: ftp.zyxel.com
For European and Asian versions and related files, use the
address: ftp.zyxel.co.at
Postal Service: You can send written communications to the following address:
ZyXEL Communications Corporation 6, Innovation Road II, Science-Based Industrial Park Hsinchu, Taiwan 300, R.O.C. or ZyXEL Communications Inc. 4920 E. La Palma Avenue Anaheim, CA92807, U.S.A.
vii
Contents
ZyXEL Limited Warranty ii FCC Part 15 Information iii Information for Canadian Users iv Contacting ZyXEL vi
1
Introduction 1
Features 1
Ease of Installation 1 ISDN Basic Rate Interface (BRI) 1 Networking Protocol Support 2 Standard Phone Jack 2 Dial On Demand 2 Bandwidth On Demand 2 Network Management 3 DHCP Support (Dynamic Host Configuration Protocol) 3 Security 3 Call Control 3 Data Compression 3 Networking Compatibility 3
Applications For Your Prestige 4
Internet Access 4 Internet Single User Account (SUA) 4 Telecommuting Server 4
What This Manual Covers 4 What This Manual Doesn‘t Cover 5 Other Resources 5 Packing List 6 Additional Installation Requirements 6
viii
2
Before You Begin 9
Road Map and Flow 9
Completing the Worksheet 10
Ordering Your ISDN Line 10 Collecting General Setup Information 11 Collecting ISDN Phone Line Information 12 Collecting Ethernet Setup Information 14
3
Installation 21
A Warning On Connection Cables 21 Connecting Your Computer and Your Prestige 22
Connecting the RS-232 Cable to your Prestige 22 Connecting an ISDN Line to your Prestige 22 Connecting a Telephone/Fax to your Prestige 23 Connecting an Ethernet Cable to your Prestige 23 Connecting a Power Adapter to your Prestige 24
Prestige Front Panel 24 Powering On Your Prestige 25 Navigating Through the SMT 27 SMT Summary 28 General Setup 29 ISDN Setup 30
North American ISDN 30 DSS1 & 1TR6 ISDN 32 TCP/IP Ethernet Setup and DHCP 35
4
Configuring for Internet Access 39
IP Addresses and the Internet 40 Internet Access Configuration 41 Single User Account 44 Configuration for Single User Account 46 Configuring Backup ISP Accounts 46
5
Remote Node Configuration 49
Bandwidth on Demand 55 Editing PPP Options 56
6
Dial-In Configuration 59
ix
Telecommuting 59 Dial-In Server Application 60 Default Dial-In Setup 61 Dial-In Users Setup 65
More on CLID 67
7
TCP/IP Configuration 69
IP Subnet Mask 69 LAN-to-LAN Application 70
Remote Node Setup 71 Static Route Setup 73
8
Filter Configuration 77
About Filtering 77 Prestige’s Filter Structure 78 Configuring a Filter Set 79 Configuring a Filter Rule 82
TCP/IP Filter Rule 82 Generic Filter Rule 85
9
System Security 89
About System Security For the Prestige 89 Configuring the SMT Password 89
10
Telnet Configuration and Capabilities 91
About Telnet Configuration 91 Telnet Capabilities 92
Single Administrator 92 System Timeout 92
11
System Maintenance 93
System Status 93 Terminal Baud Rate 96 Log and Trace 97
View Error Log 98 Syslog And Accounting 98
x
Diagnostic 99 Backup Configuration 102 Restore Configuration 103 Software Update 103 Command Interpreter Mode 104 Call Control 104
Call Control Parameters 105 Blacklist 106 Budget Management 107
12
Troubleshooting 109
Problems Starting Up the Prestige 109
None of the LED's are on when you power up the Prestige 109 Connecting the RS-232 cable, cannot access the SMT 109
Problems With the ISDN Line 110
The ISDN initialization failed 110 The ISDN loopback test failed 110
Problems with the LAN Interface 111
Can’t PING any station on the LAN 111
Problems Connecting to a Remote Node or ISP 111 Problems Connecting to a Remote User 112
13
ISDN Switch Types 113
Provisioning For U.S. Switches 113
Provisioning For the AT&T 5ESS Switches 114 Provisioning For the Northern Telecom Switch 115
14
Index 116
xi
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Features
Introduction
Congratulations on your purchase of a ZyXEL Prestige 100 Remote Access Router. In a modem-sized box, the Prestige offers inexpensive yet complete telecommunications and internetworking solutions for your home or branch office. The Prestige is ideal for everything from surfing the Internet to receiving calls from Remote Dial-in Users to making LAN-to-LAN connections to Remote Nodes.
Distinguishing features of the Prestige 100 include Remote Dial-in User support, an Internet Single User Account (Network Address Translation), POTS line support (Plain Old Telephone Service; also called A/B Adapter in Europe), extensive Network Management, and the latest security features.
The Prestige 100 is packed with a number of features that give it the flexibility to provide a complete networking solution for almost any user.
Ease of Installation
The Prestige is a self-contained unit that is quick and easy to install. Physically, it resembles an external modem except for the fact that it is a router and uses an Ethernet cable to connect to the host network.
ISDN Basic Rate Interface (BRI)
Using either a standard S/T Interface or a U Interface (The Prestige 100 uses the S/T interface and Prestige 100U uses the U interface)
Introduction 1
the Prestige supports a full range of switch types. The switch type depends on the CO (Central Office) switch your ISDN line is connected to. Please see Chapter 13 for more information on North American, European, and Asian ISDN firmware and switch types supported by the Prestige.
The two B-channels can be used independently for two destinations. Or they can be bundled for one connection to support bandwidth-on-demand.
Networking Protocol Support
The Prestige offers support for TCP/IP.
Standar d Phone Ja ck
The Prestige is equipped with two standard phone jacks to connect to telephones, FAX machines, or modems. This allows the ISDN line to be used for voice calls as well as data calls.
Dial On De mand
The Dial On Demand feature allows the Prestige to automatically place a call to a Remote Node whenever there is traffic coming from any workstation on the LAN to that remote site.
2 Introduction
Bandwidth On Dema nd
The Prestige supports bandwidth up to 128Kbps over a single ISDN BRI line. It incorporates PPP/MP (Point-to-Point Protocol/Multilink Protocol) to bundle two B channels over a BRI line. In addition, the Prestige dynamically allocates bandwidth between the two B channels, increasing or decreasing speeds as needed to allow for greater efficiency in data transfer. It supports BAP (Bandwidth Allocation Protocol) and BACP (Bandwidth Allocation Control Protocol) to manage the number of links in multilink bundle.
Network Managem ent
The Prestige supports menu-driven network management via an RS-232 or Telnet connection. The Prestige is also equipped with a Call Detail Record (CDR) to help analyze and manage your telephone bill.
DHCP Support (Dynamic Host Configuration Protocol)
DHCP (Dynamic Host Configuration Protocol) allows you to dynamically and automatically assign IP address settings to hosts on your network.
Security
The Prestige supports PAP (Password Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol).
Call Control
The Prestige provides budget management for outgoing calls and maintains a blacklist for unreachable phone numbers in order to save you the expense of unnecessary charges.
Data Comp r ession
The Prestige incorporates Stac data compression and CCP (Compression Control Protocol).
Networking Compatibility
The Prestige is compatible with remote access products from other companies such as Ascend, Cisco, and 3Com. Furthermore, it supports Microsoft Windows 95 and Windows NT remote access capability.
Introduction 3
Applications For Your Prestige
Some applications for the Prestige include:
Internet Access
The Prestige supports the TCP/IP protocol, which is the language used for the Internet. It is also compatible with access servers manufactured by major vendors such as Cisco and Ascend.
Internet Single User Account (SUA)
For a small office environment, the Prestige offers a Single User Internet Account from an ISP (Internet Service Provider). This allows for unlimited users on the LAN (Local Area Network) to access the Internet concurrently for the cost of a single user.
Single User Account address mapping can also be used for LAN to LAN connection.
Telecommuting Server
The Prestige allows Remote Dial-in Users to dial-in and gain access to your LAN. This feature enables users that have workstations with remote access capabilities, e.g., Windows 95, to dial in using an ISDN terminal adapter (TA) to access the network resources without physically being in the office.
What This Manual Covers
This manual is divided into five parts.
1. Part One - Getting Started (Chapter 1-3) - is structured as a step-by-step guide to help you connect, install, and setup your Prestige to operate on your LAN.
2. Part Two - The Internet (Chapter 4) - describes how to configure the Prestige to connect to the Internet.
4 Introduction
3. Part Three - Setting Up Advanced Applications (Chapter 5-
10) - describes how to use the Prestige for more advanced applications such as TCP/IP.
4. Part Four - Advanced Management (Chapter 11-14) ­provides information on advanced management features for network managers.
5. Part Five - System Maintenance (Chapter 15-16) - describes maintenance features for checking system status and logging errors.
Regardless of the application, it is important that you follow the steps outlined in Part One (Chapters 1-3) to correctly connect your Prestige to your LAN. You can then refer to other chapters of the manual depending on which applications you wish to use.
What This Manual Doesn‘t Cover
This manual assumes that you know how to use your computer and are familiar with your communications software. If you have questions about using either one, refer to the manual for the product.
Other Resources
For more information about the Prestige 100 check the following sources:
Prestige 128/100 Quick Start Guide.
Prestige Support Disk.
Release notes for firmware upgrades and other information can
be accessed through a ZyXEL FTP server site.
For ZyXEL contact information see page vi.
Introduction 5
Packing List
Before you proceed further, please check all items you received with your ISDN router against this list to make sure nothing is missing. The complete package should include:
One Prestige 100.
One power adapter.
One RJ-45 phone cable.
One RJ-11 phone cable.
One 25 pin female - 9 pin male adapter.
One LAN crossover cable (red tag).
One LAN straight cable (white tag).
One Prestige Support Disk.
One Prestige 128/100 Quick Start Guide.
This Prestige 100 User's Manual.
Additional Installation Requirements
In addition to the contents of your package, there are other hardware and software requirements you need before you can install and use your Prestige. These requirements include:
An ISDN telephone line which has been installed by your telephone company.
An Ethernet connection to your computer.
6 Introduction
A computer equipped with communications software configured to the following parameters:
VT100 terminal emulation.
9600 Baud rate.
No parity, 8 Data bits, 1 Stop bit.
After the Prestige has been successfully connected to your network, you can make future changes to the configuration by using a Telnet application.
Please make sure that you have all of these components before you attempt to install your Prestige.
Introduction 7
8 Introduction

Before You Beg in
To ensure successful installation of your Prestige, we strongly recommend that you carefully follow the steps outlined in Chapters 2 and 3. These chapters are designed as a guide for you to collect the necessary information about your ISDN phone line, and the LAN which you will be connected to. Once this information has been collected, it will be used to configure your Prestige.
After you have successfully configured your Prestige, please see the appropriate chapters to setup your application. For Internet Access, please see Chapter 4.
Road Map and Flow
Below is a schematic flowchart. It is intended to guide you through a successful installation of your Prestige.
Before You Begin 9
Figure 2-1 Installation Guide
Completing the Worksheet
Before you continue locate the worksheet at the end of this chapter. This information worksheet has been provided to help you get through setup and installation of your Prestige as easily as possible.
Ordering Your ISDN Li ne
If you do not have the ISDN line installed already, we suggest that you order it from your telephone company as soon as possible to avoid the long waits common when ordering a new line. Use the
10 Before You Begin
information in this section to place the order (see Chapter 13 for information on provisioning your ISDN line). If you have already installed your ISDN line, you can check the following section to make sure that you can use all the features of your Prestige.
1. Contact your local telephone company’s ISDN Ordering Center.
2. Find out what type of ISDN service is available. Please refer to Chapter 13 to find out the provisioning information for the appropriate switch type and ISDN service. For the U.S., the Prestige (both U and S/T Interface) have been approved by Bellcore and have IOC (ISDN Ordering Code) “S” Capability, EZ-ISDN 1.
3. Provide your telephone company with the proper provisioning information.
4. When the telephone company installs your ISDN line, please be sure to obtain the following information:
ISDN switch type.
ISDN telephone number(s).
ISDN Service Profile Identifiers (SPID) number(s) (only for
North America).
Collecting General Setup Information
The Prestige requires certain system information. You can obtain all the pertinent information from your network administrator. Record this information into the worksheet as it becomes available. This worksheet will later be referred to as you configure your Prestige.
System Name - This is the name given to the Prestige for identification purposes. This name should be no more than 8 alphanumeric characters. Spaces are not allowed, but “-” and “_” are accepted.
Before You Begin 11
Route IP Field - For Internet access, you will need to enable the Route IP Field. Please see Chapter 4 for more details on configuring your Prestige for Internet access.
You have now collected all of the general setup information you need. Please make sure that you have entered all the values onto the worksheet before proceeding to the next section.
Collecting IS DN Phone Line Information
After you have successfully installed the ISDN phone line or if you already have one installed, you need to use the ISDN line information to complete the worksheet and configure your Prestige. Your telephone company can give you the following information to configure the Prestige:
Switch Type Geography No of Phone #'s No of SPIDs
AT&T 5ESS NI-1 North America 2 2 AT&T 5ESS Point to
Point AT&T 5ESS Multipoint North America 2 2 Northern Telecom NI-1 North America 2 2 Northern Telecom
Custom DSS1 Europe, Asia 2 N/A
1TR6 Germany 2 N/A
North America 1 0
North America 2 2
Switch Type - This is the type of switch used by your
12 Before You Begin
telephone company. Check with your telephone company and choose the appropriate option on the worksheet. For North America, select your ISDN switch type. For DSS1 and 1TR6, verify this field to make sure that you have the proper firmware loaded.
B Channel Usage - Determine which connection is appropriate for your B channel and check the corresponding option on the worksheet.
If your Prestige is the only device using the ISDN line, then
configure B Channel Usage to ‘Switch/Switch’ so that your device will use both B channels to communicate. If your Prestige is sharing the ISDN line with other devices, then configure B Channel to “Switch/Unused”.
Telephone Number(s) - Record on the worksheet the telephone number(s) given to you by your ISDN provider. Some switch types only have one telephone number. These phone numbers should be in a standard digit format (for example, 5551212). Please note that these fields will only accept digits, so ‘-’ and spaces will not be accepted.
Analog Call - Check the appropriate ‘Analog Call’ option on the worksheet for each telephone number. This information is later used to configure the Prestige in routing an incoming analog call. Set to ‘Phone1’ or ‘Phone2’ if you wish to route the incoming analog call for this telephone number to PHONE port number 1 or 2.
SPID Number(s) - (For North America only) The SPID (Service Profile Identifier) is a number used by a central office switch for identification purposes. With the switch information, please see the previous table for the number of SPIDs you must enter.
You have now collected all of the necessary information about your ISDN phone line. Make sure that these values are entered into your worksheet before you continue to the next section. For DSS1 and 1TR6 ISDN, please refer to Chapter 3.
Before You Begin 13
Collecting Ether net Setup Informa ti on
Ethernet Interface - The first step is to determine the type of Ethernet interface you will be using on the Prestige. There are two options: AUI or UTP. Record the interface type onto the worksheet. If you have a 10Base2 (BNC), you should choose AUI.
IP Address - An IP Address is required for TCP/IP protocol. The IP Address is the unique 32-bit number assigned to your Prestige. This address is written in dotted decimal notation (four 8-bit numbers, between 0 and 255, separated by periods), e.g., 192.68.203.5.
Record the IP Address into the worksheet as assigned by your
network administrator. Please note that every machine on an internet must have a unique IP address - do not assign an arbitrary address to any machine.
IP Sub-net Mask - This field is required for TCP/IP protocol. An IP address consists of two parts, the network ID and the host ID. The IP Subnet Mask is used to specify the network ID portion of the address, expressed in dotted decimal notation. The Prestige will automatically calculate this mask based on the IP address that you assign. Unless you have special need for subnetting, use the default mask as calculated by the Prestige.
14 Before You Begin
The table below lists some examples of IP subnet masks and the number of hosts that are allowed. Consult your network administrator if you are unsure of this value.
IP Subnet Mask Number of Host ID’s Number of Bits
255.255.255.0 254 24
255.255.255.128 126 25
255.255.255.192 62 26
IP Subnet Mask Number of Host ID’s Number of Bits
255.255.255.224 30 27
255.255.255.255 1 32
Before You Begin 15
Prestige Setup and Installation Worksh eet
General Setup Information
System Name (for identification purposes) :
_______________________________________
Protocol Routing:
___TCP/IP
ISDN Setup Information
Switch Type (check one):
___AT&T 5ESS NI-1 ___AT&T Point to Point ___AT&T 5ESS Multipoint ___Northern Telecom NI-1 ___Northern Telecom Custom ___DSS1 ___1TR6
B-Channel Usage (check one):
___Switch/Switch ___Switch/Unused
North America ISDN
16 Before You Begin
1st Telephone Number:
_______________________________________
Analog Call (check one):
___Phone1 ___Phone2 ___DOVBS
1st SPID Number:
_______________________________________
2nd Telephone Number:
_______________________________________
Analog Call (check one):
___Phone1 ___Phone2 ___DOVBS
2nd SPID Number:
_______________________________________
DSS1 ISDN
ISDN Data Number & Subaddress:
_______________________________________
A/B Adapter 1 Number & Subaddress:
_______________________________________
A/B Adapter 2 Number & Subaddress:
_______________________________________
Before You Begin 17
Outside Line Prefix Number:
_______________________________________
PABX Number (S/T Bus Number):
_______________________________________
Incoming Number Matching:
___MSN ___CDSA ___Don’t Care
Analog Call Routing:
___A/B #1 ___A/B #2 ___Ignore
Global Analog Call:
___Accept ___Ignore
1TR6 I SDN:
ISDN Data Number:
A/B Adapter 1 Number:
A/B Adapter 2 Number:
18 Before You Begin
_______________________________________
_______________________________________
_______________________________________
Outside Line Prefix Number:
_______________________________________
PABX Number (S/T Bus Number):
_______________________________________
Incoming Number Matching:
___EAZ ___Don’t Care
Analog Call Routing:
___A/B #1 ___A/B #2 ___Ignore
Ethernet Setup Information
Ethernet Interface (check one):
___AUI ___UTP
IP Address:
_______._______._______._______
IP Subnet Mask:
_______._______._______._______
Before You Begin 19
20 Before You Begin

Installation
This chapter outlines how to connect your Prestige to the LAN and ISDN line. A diagram of the rear panel of the Prestige is shown below. Refer to this diagram to identify all of the ports on your device when you attempt to make the various connections.
Figure 3-1 Rear Panel Diagram
A Warning On Connection Cables
Several of the connection cables (RS-232, ISDN line and Ethernet cable) are very similar to each other. It is important that you use
Installation 21
the correct cable for each connection; otherwise, your Prestige could be damaged.
Connecting Your Computer and Your Prestige
For the initial setup of your Prestige, you must use RS-232 and communication software to configure the Prestige.
After the Prestige has been successfully installed, you can modify the configuration through a remote Telnet connection. See Chapter 10 for detailed instructions on using Telnet to configure your Prestige.
Connecting the RS-232 Cable to your Prestige
One 9-25 pin adapter is included in your package. To connect a RS-232 cable, connect the 9-pin end of the cable to the DTE port on the back panel of the Prestige. Connect the other end to the RS­232 cable connected to the serial port (COM1, COM2, or any other COM port) of your computer.
Connecting an ISDN Line to your Pre stige
Plug one end of your ISDN phone line which is included in your package into the socket on the rear panel of the Prestige labeled ‘ISDN’ and the other end into the ISDN wall jack.
S/T interface - This can only connect to your NT-1 (Network Termination) device.
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U interface - This allows you to connect directly to your ISDN wall jack.
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22 Installation
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Connecting a Telephone/Fax to y our Pre stige
If you wish, you can connect a regular telephone, fax machine, or a modem to your Prestige to be used for analog calls just like a normal phone line. It should be noted that this is optional and is not required for you to run other applications using your Prestige. Plug one end of the telephone cord from a phone or fax or modem into the socket on the rear panel of the Prestige labeled ‘PHONE 1’ or ‘PHONE 2’.
In order to receive incoming calls using a device connected to PHONE ports, you need to enter ‘Phone1’ or ‘Phone2’ in the
Analog Call field under the desired telephone number (e.g., 1st phone #) in SMT Menu 2 - ISDN Setup. See Collecting ISDN
Phone Line Information in Chapter 2 for more details.
Connecting an Ethernet Cabl e to your Prestige
The Prestige supports two types of Ethernet connections. The connection procedure differs for each one; please follow the one that is appropriate for your installation.
UTP
The UTP port is used to connect to a 10Bas e-T network.
10Base-T networks use Unshielded Twisted Pair (UTP) cable and RJ-45 connectors that look like a bigger telephone plug with 8 pins. Two types of gray Ethernet cables come with the package:
Straight through cable (white tag): Connect your Prestige to
a 10Base-T hub.
Installation 23
Crossover cable (red tag): Connect your Prestige to your
computer directly without a hub.
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AUI
The AUI port (the connector with 15 pins) is used to connect
the Prestige to a 10Base5 (thicknet) network.
If you have a 10Base2 network using BNC connectors and thin
coaxial cables, you will need a transceiver between the AUI port and the 10Base2 cabling.
Connecting a Power Adapter to your Prestige
Plug the power adapter into the outlet on the rear panel of the Prestige labeled ‘POWER’.
At this point, you should have connected the RS-232 cable, the ISDN phone line, the Ethernet cable, and the power supply. You can now power on your Prestige.
Prestige Front Panel
24 Installation
Names and descriptions of the Prestige front panel LED's are listed below:
Figure 3-2 Front Panel
PWR - This LED (power) comes on as soon as you connect you
Prestige to the power supply and switch it to the ‘I’ (on) position. TST - The TST (Test) LED should be blinking if the Prestige is
functioning properly.
ISDN: LNK - This LED indicates that the Prestige has an ISDN line connected to the WAN interface and it has been successfully initialized.
ISDN: B1 and B2 - These LEDs are on if there is an active WAN session on that channel or if that channel is making or receiving a call.
ETHERNET: LNK - This LED indicates that the Prestige has been successfully connected to the LAN via a UTP Ethernet interface.
ETHERNET: TX and RX - Transmit and Receive LEDs will blink to indicate when there is traffic over the LAN.
ETHERNET: COL - This LED indicates that there is transmission collision over the LAN
PHONE: 1 - This LED indicates the functionality of the POTS port 1 on the Prestige. If there is a device plugged into this port, and the device is in use, this LED should be on.
PHONE: 2 - This LED indicates the functionality of the POTS port 2 on the Prestige. If there is a device plugged into this port, and the device is in use, this LED should be on.
Powering On Your Prestige
When you power on your Prestige, the Prestige will perform several internal tests and will also do an ISDN line initialization. After this initialization, the Prestige will ask you to press ENTER to continue as shown below:
Installation 25
Figure 3-3 Power on Messages
If you press ENTER, the Prestige will display a login screen and ask you to enter the password as shown in below:
Figure 3-4 Login Screen
Enter the default password, ‘1234’ to get into the Main Menu of System Management Terminal (SMT). Note that once you are in the SMT and if there is no activity for longer than 5 minutes, the Prestige will automatically log you out and will display a blank screen. If you see a blank screen, press ENTER to bring up the password screen.
26 Installation
Navigating Through the SMT
The SMT (System Management Terminal) is the interface that you use to configure your Prestige. Several operations that you should be familiar with before you attempt to modify the configuration of your Prestige are listed below:
Moving Forward to Another Menu. To move forward to a sub-menu below the current one, type in the number of the sub­menu and press ENTER.
Moving Backward to a Previous Menu. Press the escape (Esc) key to move back to the previous menu. The only exception is the Main Menu, where typing ‘99’ is the only method to exit from the SMT.
Moving the Cursor. Within a menu, press Enter (carriage return) to move to the next field. You can also use the Up and Down keys to move to the previous and the next field, respectively.
Entering Information. There are two types of fields that you will need to fill in. The first requires you to type in the appropriate information. The second gives you choices to choose from. In the second case, press the SPACE-BAR to cycle through the available choices.
Required Fields. Some of the fields in the SMT are essential in order to configure the Prestige. These fields will initially show a ‘?’ indicating that the information must be filled in before that menu can be saved.
‘N/A’ Fields. Some of the fields in the SMT will show a ‘N/A’ which refers to ‘Not Available’. This symbol usually refers to an option that is not available.
Installation 27
Saving Your Configuration. You can save your configuration by pressing ENTER at the message: ‘Press ENTER to confirm or ESC to cancel’: Saving the data on the screen will take you in most cases to the previous menu.
The SMT main menu is shown below:
Figure 3-5 SMT Main Menu
SMT Summary
This section summarizes all major SMT Menus:
# Menu Title Description 1 General Setup Setup general information. 2 ISDN Setup Setup ISDN configuration. 3 Ethernet Setup Setup Ethernet configuration. 4 Internet Access Setup A quick and easy way to setup Internet
11 Remote Node Setup Setup Remote Node for LAN-to-LAN
12 Static Routing Setup Setup static route for protocol. There are four
13 Default Dial-in Setup Setup default dial-in parameters such that
28 Installation
connection.
connection including Internet connection. Prestige has four Remote Nodes.
static routes for IP protocol.
your Prestige can be a dial-in server for the
#
Menu Title Description
14 Dial-in User Setup Setup Remote Dial-in User. Prestige has eight
21 Filter Set Configuration Setup filters to be used in Menu 3 and Menu
23 System Security Setup security related parameters. 24 System Maintenance Provide system status, diagnostics, firmware
99 Exit To exit from SMT and return to the blank
General Setup
This menu contains administrative and system-related information. Enter ‘1’ in the main menu to go to ‘Menu 1 - General Setup’.
Remote Node and Remote Dial-in User.
Remote Dial-in Users.
11 to provide security, call control, etc.
upload, etc.
screen.
Figure 3-6 Menu 1 - General Setup
1.
System Name -
Choose a descriptive name for the Prestige for identification purposes, e.g., p100. This name should be no more than 8 alphanumeric characters. Spaces are not allowed, but “-” and “_” are accepted.
2.
Location -
Enter the geographic location (up to 31 characters)
of your Prestige, e.g., Kansas City.
Installation 29
3. Contact Person’s Name - Enter the name (up to 8 characters)
ISDN Setup
Menu 2 is for you to enter information about your ISDN line. Different telephone companies deploy different types of switches for ISDN service. Depending on the switch for your particular installation, you will have a different number of telephone numbers. If you are in North America, you may also have SPIDs (Service Profile Identifier). Make sure that you have correct and complete telephone numbers and SPIDs. You need to pass the ISDN setup before your system can make an outgoing call or answer an incoming call.
North American ISDN
of the person in charge of this Prestige, e.g., Peter Housel. The Location and the Contact Person fields are optional.
30 Installation
Figure 3-7 Menu 2 - ISDN Setup for North America
1. Switch Type - Please verify the switch type information with
your telephone company. For North America, select the type of switch used by your telephone company. If your switch type is not currently shown, press the space bar to change to the next
switch; repeat until you see the correct switch type. The Prestige will not be able to place or to receive calls if the wrong switch type is specified. If you are not sure, contact your telephone company to confirm the exact switch type.
2. B Channel Usage - In general, this will be ‘Switch/Switch’. If
you are only using one B channel (e.g., your Prestige is sharing the ISDN BRI line with another device on the S/T bus), then select ‘Switch/Unused’. The default is ‘Switch/Switch’.
3. Telephone Number(s) - Enter the telephone number(s)
assigned to your ISDN line by your telephone company. Some switch types only have one telephone number. For North America, these phone numbers should be in a standard seven digit format (for example, 5551212). Note that the Prestige only accepts digits; please do not include ‘-’ and spaces in this field. This field should be no longer than 19 digits.
4. Analog Call - This tells the Prestige how to route an incoming
analog call. Set to ‘Phone1’ if you wish to route the incoming analog call for this telephone number to the PHONE port 1 (a.k.a., ‘POTS’ port in North America and ‘A/B Adapter’ in Europe). Set to ‘Phone2’ if you wish to route the incoming analog call for this telephone number to PHONE port 2. Set to ‘DOVBS’ if you wish to receive incoming Data Over Voice Bearer Service call.
5. SPID Number(s) - The SPID (Service Profile Identifier) is a
number used by a switch for identification purposes. Depending on your switch type, you may have zero, one, or two SPIDs assigned to your line. For example, if your switch type is Northern Telecom Custom, you will have to enter two SPID numbers.
Installation 31
DSS1 & 1TR6 ISDN
Figure 3-8 Menu 2 - ISDN Setup for DSS1
32 Installation
Figure 3-9 Menu 2 - ISDN Setup for 1TR6
1.
Switch Type -
2.
B Channel Usage
3.
ISDN Data & Subaddress -
This field is fixed as DSS1 or 1TR6.
- This field is fixed as Switch/Switch. Enter the telephone number and
subaddress assigned to the ISDN data call for the Prestige. It will be used as outgoing CGPN(Calling Party Number) setting for the ISDN data call. Note that the Prestige only accepts digits; please do not include ‘-’ and spaces in this field. This
field should be no longer than 19 digits for the number and 5 digits for the Subaddress. The Subaddress is only available for DSS1.
4. A/B Adapter 1 & Subaddress - Enter the telephone number
and subaddress assigned to the A/B Adapter 1 (POTS port 1) call for the Prestige. It will be used as outgoing CGPN(Calling Party Number) setting for the A/B Adapter 1 call.
5. A/B Adapter 2 & Subaddress - Enter the telephone number
and subaddress assigned to the A/B Adapter 2 (POTS port 2) call for the Prestige. It will be used as outgoing CGPN (Calling Party Number) setting for the A/B Adapter 2 call.
6. Dial Prefix to Access Outside Line - Enter the prefix number
if the Prestige is connected to an ISDN PABX. This number will be added to all outgoing calls and should be no longer than 3 digits. Otherwise, leave this field blank.
7. PABX Number (with S/T Bus Number) - Enter the S/T bus
number if the Prestige is connected to an ISDN PABX. If this field is left as blank then the loopback test will be skipped.
8. Incoming Phone Number Matching - There are three options
in this field:
Multiple Subscriber Number (MSN) - The digital call will
only be answered when there is a match for the ISDN data number. The analog call will be answered as the A/B Adapter 1 call when there is a match for the A/B Adapter 1 number. Or it will be answered as A/B Adapter 2 call when there is a match for the A/B Adapter 2 number. If no A/B Adapter 1 or 2 number is specified, then the analog call will not be answered. This option will be available as EAZ (Endgeraete Auswahl Ziffer) for 1TR6.
Called Party Sub-Address (CDSA) - The digital call will
be answered when there is a match for the ISDN Data subaddress. The analog call will be answered as the A/B
Installation 33
Adapter 1 call when there is a match for the A/B Adapter 1 subaddress. Or it will be answered as A/B Adapter 2 call when there is a match for the A/B Adapter 2 subaddress. If A/B Adapter 1 or 2 subaddress is specified, then the analog call will not be answered. This option is only available for DSS1.
Don’t care - all numbers accepted - All digital calls,
including global calls (without CDPN and CDSA in the call setup), to any CDPN (Called Party Number) will be answered. All analog calls will be routed to the A/B Adapter 1, A/B Adapter 2, or not answered. This depends on the setting of ‘Analog Call Routing’. All global analog calls will either accept or not answer them depending on the setting of ‘Global Analog Call’.
9. Analog Call Routing - All analog calls will be routed to the
A/B Adapter 1 if the setting is ‘A/B Adapter 1’. Or they will be routed to the A/B Adapter 2 if the setting is ‘A/B Adapter 2’. Or they will not be answered if the setting is ‘Ignore’.
10. Global Analog Call - All global analog calls will be answered
and routed to the A/B Adapter 1 or A/B Adapter 2 (the setting in the filed of ‘Analog call routing’) if the setting is ‘Accept’. Or they will not be answered if the setting is ‘Ignore’.
34 Installation
When you are finished, press ENTER at the message: ‘Press ENTER to Confirm ...’ to save your selections, or press ESC to cancel. When you press ENTER, the Prestige will use the information that you entered to initialize the ISDN link to the telephone company switch. It should be noted that whenever the switch type is changed, the ISDN initialization will take slightly longer. In addition, if you are using the U-interface, the system will also take slightly longer to initialize.
At this point, the Prestige will ask if you wish to test to check if your ISDN line has been successfully connected to your Prestige. If you select ‘Yes’, The Prestige will perform a loop-back test to
check the ISDN line. If the loop-back test fails, please note the error message that you receive and take the appropriate troubleshooting action.
Figure 3-10 ISDN Loop-back Test Screen
TCP/IP Ethernet Setup and DHCP
Menu 3 is used to enter Ethernet related information as seen below:
Figure 3-11 Menu 3 - Ethernet Setup
Installation 35
If you are setting up your network for the first time, please read Chapter 4 Configuring for Internet Access before proceeding. The chapter contains important information on how to assign IP addresses for your network.
1. Ethernet Interface - The Prestige supports two types of
Ethernet connections, the AUI (15-pin) or the connection for the 10BaseT network (looks like a bigger telephone plug). Determine which type you are using and select the appropriate option in this field.
2. Input and Output Filter Sets - Filter sets are used to block
certain packets to reduce traffic and to prevent a security breach. Filtering is a very involved subject, so leave these fields blank for the time being. After you have studied filtering in Chapter 8, come back and define the filter sets.
3. DHCP - This field determines what mode of DHCP (Dynamic
Host Configuration Protocol) support the Prestige should use. If it is set to None, DHCP will not be used. If it is set to Server, the Prestige will act as a DHCP server, capable of automatically assigning IP addresses to Windows 95, Windows NT, and other systems that support the DHCP client. When DHCP is used, the following four items need to be set.
36 Installation
Do not set this field to Server if there is already a DHCP server
on your network.
4. Client IP Pool Starting Address - DHCP can assign IP
addresses to hosts dynamically instead of requiring that each system have a fixed IP address. IP addresses are allocated from a block of addresses, usually assigned by your Internet provider. The Client IP Pool Starting Address gives the first address in the reserved block, which is also used as the LAN network address of the Prestige itself. This address will also serve as the default gateway for DHCP clients.
5. Size of Client IP Pool - Gives the size of the block of
addresses reserved for DHCP address assignment. The Prestige itself uses the first address in the block, and the remaining addresses in the pool are assigned to clients.
6. Primary DNS Server/Secondary DNS Server - These two
fields are used by DHCP clients (such as Windows 95 and Windows NT systems) for Domain Name Servers. Usually your Internet provider will provide one or more name service hosts.
7. IP Address - Enter the IP address of the Prestige in dotted
decimal notation (four 8-bit numbers, between 0 and 255, separated by periods), e.g., 192.68.135.5. Please note that every machine on the TCP/IP network must have a unique IP address.
8. IP Subnet Mask - An IP address consists of two parts, the
network ID and the host ID. The IP Subnet Mask is used to specify the network ID portion of the address, expressed in dotted decimal notation. The Prestige will automatically calculate this mask based on the IP address that you assign. Unless you have special need for subnetting, use the default subnet mask calculated by the Prestige.
9. RIP Direction - This parameter determines how the Prestige
handles RIP (Routing Information Protocol). If set to ‘Both’ (default), the Prestige will broadcast its routing table on the LAN, and incorporate RIP broadcasts by other routers into its routing table. If set to ‘In Only’, the Prestige will not broadcast its routing table on the LAN, if set to ‘Out Only’, the Prestige will broadcast its routing table but ignores any RIP broadcast packets that it receives. If set to ‘None’, the Prestige will not participate in any RIP exchange with other routers.
Usually, you should leave this parameter at its default of ‘Both’
and let RIP propagate the routing information automatically.
Installation 37
When you are finished, press ENTER at the message: ‘Press ENTER to Confirm...’ to save your selections, or press ESC at any time to cancel them.
38 Installation

Configuring for Internet Access
Menu 4 of the SMT allows you to configure Internet access on one screen. Before you configure the Prestige for Internet access, you need to collect the following information from your ISP (Internet Service Provider).
IP address of the ISP’s gateway (optional).
Telephone number(s) of your ISP.
Login name.
Password for ISP authentication.
For your Workstation:
Domain Name Server (DNS).
Configuring for Internet Access 39
Figure 4-1 Internet Access
IP Addresses and the Internet
Conventionally, the Internet (with a capital I) refers the large-scale interconnected networks across the world that was originally developed by the US Department of Defense. The Internet uses exclusively the TCP/IP protocols. The term “internet” (lower case i), however, refers to any interconnected networks using any protocol. An internet can be as simple as two hosts on a LAN, or it can be as complex as the Internet itself.
Every machine on the Internet must have a unique address within that internet. If your networks are isolated from the Internet, e.g., only between your two branch offices, you can assign any IP addresses to the hosts without problems. However, the Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of IP addresses specifically for private networks:
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255
40 Configuring for Internet Access
For this reason, it is recommended that you choose your network number from the above list.
You can obtain your IP address from the IANA, from an ISP, or assigned from a private network. If you belong to a small organization and your Internet access is through an ISP, the ISP can provide you with the Internet addresses for your local networks. On the other hand, if you are part of a much larger organization, you should consult your network administrator for the appropriate IP addresses.
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Once you have determined the IP address range for your local network, you may want to use DHCP (Dynamic Host Configuration Protocol) to assign addresses to individual hosts on the network, as an alternative to manually configuring each host’s IP settings. See the TCP/IP Ethernet Setup and DHCP section on page 35 for more information about DHCP.
Internet Access Configuration
The following steps describe the set-up procedure to configure your Prestige for Internet access. The information you will need to provide will be indicated in bold type.
Configuring for Internet Access 41
Figure 4-2 Menu 4 - Internet Access Setup
1. From the Main Menu, enter ‘4’ to go to ‘Menu 4 - Internet Access Setup’ as seen above.
2.
ISP’s Name -
Enter the name of your Internet Service Provider, e.g., myisp. This information is for identification purposes only.
3.
ISP IP Addr -
Enter the IP Address of the remote gateway at
the ISP’s site. If you don’t have this data, just leave it blank.
4.
Pri(mary) Phone #
and
Sec(ondary) Phone Number -
the Primary and the Secondary Phone number refer to the number that the Prestige will dial to connect to the ISP. The Prestige will always call your ISP using the Primary Phone number first. If the Primary Phone number is busy or does not answer, the Prestige will call the Secondary Phone number if available. Once connected, the Prestige will use the BACP (Bandwidth Allocation Control Protocol) to establish the second B-channel if PPP/MP is enabled, and the ISP also supports MP and BACP.
5.
My Login Name -
Enter the login name given to you by your
ISP.
Both
42 Configuring for Internet Access
6. My Password - Enter the password associated with the login
name above. Please note that this login name/password pair is only for the Prestige to connect to the ISP’s gateway. When you use TCP/IP applications, e.g., FTP, to access the Internet from your workstation, you will need a separate login name and password for each server.
7. Single User Account - Please see the following section for a
more detailed discussion on the Single User Account feature. The default is ‘No’.
8. Telco Options: Transfer Rate - This field (which only applies
to outgoing calls) controls the rate at which the data is transferred between your Prestige and the Internet. There are four options for this field:
64K - The Prestige will place 64Kbps (bits per second)
digital data calls.
56K - (For the North America only) The Prestige will place
56Kbps digital data calls.
DOVBS - (For the North America only) The Prestige will
place 56Kbps Data Over Voice Bearer Service (DOVBS) call. Some phone companies in North America charge less if calls are made using DOVBS.
9. Press ENTER at the message: ‘Press ENTER to Confirm ...’ to confirm your selections, or press ESC at any time to cancel your selections.
10. At this point, the SMT will ask if you wish to test the Internet connection. If you select ‘Yes’, the Prestige will call the ISP to test the Internet connection. If the test fails, please note the error message that you receive and take the appropriate troubleshooting steps.
Configuring for Internet Access 43
Single User Account
Typically, if there are multiple users on the LAN wanting to concurrently access the Internet, they will have to subscribe to multiple IP addresses or a Class C subnetwork from the ISP. In either case, these two approaches will cost more than a single user account.
The Single User Account (SUA) feature allows customers to have the same benefits as having a Class C address, but still only pay for one IP address, thus saving significantly on subscription fees. (Check with your ISP before you enable this feature).
This feature may also be used to connect to TCP/IP remote nodes other than Internet Service Providers. For example this feature can be used to simplify the allocation of IP addresses when connecting branch offices to the corporate network.
The IP address for the Single User Account can be either fixed or dynamically assigned by the ISP (or other remote node). In addition, you can also configure a server, e.g., a Web server, on your local network and make it accessible by outside users.
If you do not set a server IP address, SUA offers the additional benefit of firewall protection. This is because if no server is defined, all incoming inquiries will be filtered out by the Prestige even if you do have a server on your network. This can prevent intruders from probing your system.
The Prestige accomplishes this address sharing by translating the internal LAN IP addresses to a single address that is globally unique on the Internet. For more information on IP address translation, refer to RFC 1631,
(NAT)
.
In summary:
44 Configuring for Internet Access
The IP Network Address Translator
1. SUA is an ideal, cost-effective solution for small offices with less than 20 hosts using a LAN to concurrently access the Internet or other remote TCP/IP network.
2. SUA can provide one server address to be accessed by Remote Dial-in Users, thus controlling the incoming packets.
3. SUA can provide firewall protection if you do not configure a server IP address. All incoming inquiries will be filtered out by the Prestige. Therefore, servers on your network are protected.
4. UDP and TCP datagrams can be routed. In addition, ICMP echo can also be routed.
The figure below shows an example of a small office connected to the Internet via a Single User Account using the Prestige. Note that if you enable the Single User Account feature, your local IP address MUST be selected from the list of IP addresses for private networks as defined by the IANA.
Figure 4-3 A Single User Account Using the Prestige
Configuring for Internet Access 45
Configuration for Single User Account
The steps for configuring your Prestige for Single User Internet Access are identical to conventional Internet Access with the exception that you need to fill in three extra fields.
Follow steps 1-8 from the previous section, Internet Access Configuration.
1. Single User Account - Enter Yes to enable the Single User Account feature. Use the space bar to toggle between Yes and No.
2. Single User Account: IP Addr - If your ISP assigns you a dynamic IP address, enter 0.0.0.0 here. If your ISP assigns you a static IP address enter that IP address here.
3. Single User Account: Server IP Addr - If you want to make a single server, e.g., a Web server, accessible to outside users, enter that server’s IP address here.
Press ENTER at the message: Press ENTER to Confirm ... to
confirm your selections or press ESC at any time to cancel your selections.
At this point, the Prestige will ask if you wish to test the
Internet connection. If you select Yes, the Prestige will call the ISP to test the Internet connection. If the test fails, note the error message that you receive and take the appropriate troubleshooting steps.
Configuring Backup ISP Accounts
Sometimes it may be desirable to configure more than one ISP account for backup purposes. The Single User Account feature can be enabled for all of these accounts, making it convenient to switch Internet Service Providers in the event of a failure.
To configure a backup ISP,
46 Configuring for Internet Access
1. Configure your primary ISP using Menu 4, as described earlier in this chapter.
2. Enter Menu 11, then select the number of an unused remote node.
3. In Menu 11.1, choose a name for your backup ISP account, set the Active field to No, and enter your outgoing login name, password, and phone number(s). The Remote IP Address field should be set to 1.1.1.1.
4. In Menu 11.3, set the remote node’s subnet mask to 0.0.0.0, and set RIP to None.
5. Save the new configuration.
Once you have done this, if you need to change from your primary ISP to a backup ISP follow the steps below:
1. Enter Menu 11 and select your Primary ISP.
2. In Menu 11.1, set the Active field to No.
3. Enter Menu 11 again and select your backup ISP.
4. In Menu 11.1, set the Active field to Yes.
You will now be able to access the Internet through the backup ISP Remote Node.
Configuring for Internet Access 47
48 Configuring for Internet Access

Remote Node Configuration
A Remote Node represents both a remote gateway and the internet behind it, across an ISDN connection. A Remote Node is required for placing calls to or answering calls from a remote network. Note that when you use Menu 4 to configure the Internet, the Prestige will automatically add a Remote Node for you. Once a Remote Node is configured properly, traffic to the remote LAN will trigger the Prestige to make a call automatically (i.e., Dial On Demand). Similarly, calls from the remote LAN will be answered automatically and security will be checked.
In this chapter, we will discuss the parameters that are protocol independent. The protocol-dependent configuration will be covered in subsequent chapters. For TCP/IP, see Chapter 7.
From the Main Menu, enter ‘11’ to go to Menu 11 - Remote Node Setup. When in menu 11, enter the number of the Remote Nodes (1 to 4) that you wish to configure as shown below:
Remote Node Configuration 49
Figure 5-1 Menu 11 - Remote Node Profile
Enter the Remote Node number to edit and you will go to the next submenu: ‘11.1 - Remote Node Profile’ as shown below:
Figure 5-2 Menu 11.1 - Remote Node Profile
1.
Rem Node Name -
name for the Remote Node, e.g., SJHQ. This field can support up to eight characters. This name must be unique from any other Remote Node name or Remote Dial-in User name.
2.
Active -
When a Remote Node is deactivated, it has no effect on the
50 Remote Node Configuration
This is a required field. Enter a descriptive
Press the space bar to toggle between ‘Yes’ and ‘No’.
operation of the Prestige, even though it is still kept in the database, and can be activated in the future. Deactivated nodes are displayed with a - (minus sign) at the beginning of the name in Menu 11.
3. Call Direction - If this parameter is set to ‘Both’, the Prestige can both place and receive calls to/from this Remote Node. If set to ‘Incoming’, the Prestige will not place a call to this Remote Node. If set to ‘Outgoing’, the Prestige will drop any call from this Remote Node.
Several other fields in this menu depend on this parameter. For
example, in order to enable Call Back, the Call Direction must be ‘Both’.
4. Incoming: Rem Node Login Name - Enter the login name that this Remote Node will use when it calls into the Prestige. The login name in this field combined with the Rem Node Password will be used to authenticate the incoming calls from this node.
5. Incoming: Rem Node Password - Enter the password used when this Remote Node calls into the Prestige.
6. Incoming: Rem CLID - This field is active only if Call Direction is either ‘Both’ or ‘Incoming’. Otherwise, an ‘N/A’ appears in the field. This is the Calling Line ID (the telephone number of the calling party) of this Remote Node. If you enable the CLID Authen field in ‘Menu 13 - Default Dial In’, the Prestige will check this number against the CLID in the incoming call. If they do not match and the CLID Authen is ‘Required’, then the Prestige will reject the call.
7. Incoming: Call Back - This field will be valid only if Call Direction is ‘Both’. Otherwise, an ‘N/A’ appears in the field. This field determines whether or not you wish the Prestige to call back after receiving a call from this Remote Node. If this option is enabled, the Prestige will disconnect the initial call
Remote Node Configuration 51
from this node and call it back at the Outgoing Primary Phone Number (see below).
8. Outgoing: My Login Name - This is a required field if Call Direction is either ‘Both’ or ‘Out’. Enter the login name for the Prestige when it calls this Remote Node.
9. Outgoing: My Password - This is a required field if Call Direction is either ‘Both’ or ‘Out’. Enter the password for the Prestige when it calls this Remote Node.
10. Outgoing: Authen - This field sets the authentication protocol used for outgoing calls.
The Prestige supports two authentication protocols: PAP
(Password Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol).
PAP sends the user name and password in plain text.
CHAP scrambles the password before it is sent over the
wire.
Generally speaking, CHAP is more secure than PAP; however,
PAP is readily available on more platforms. The recommendation is to use CHAP whenever possible. Turning off the authentication is STRONGLY discouraged.
Options for this field are:
CHAP/PAP - Prestige will try CHAP when CHAP is
requested by the Remote Node or PAP when PAP is requested by the Remote Node.
CHAP - use CHAP only.
PAP - use PAP only.
11. Outgoing: Pri(mary) Phone Sec(ondary) Phone Number ­Both the Primary Phone number and the Secondary Phone number refer to the number that the Prestige will dial to connect to the Remote Node. The Prestige will always call the
52 Remote Node Configuration
Remote Node using the Primary Phone number first. If the Primary Phone number is busy or does not answer, the Prestige will call the Secondary Phone number if available. Once connected, the Prestige will use the BACP (Bandwidth Allocation Control Protocol) to establish the second B-channel if Multilink PPP is enabled, and the Remote Node supports MP and BACP.
12. Route - This fields determines the protocols that the Prestige will route. The choices for this field are determined by the features enabled on your Prestige.
13. Edit PPP Options - To edit the PPP options for this Remote Node, move the cursor to this field, use the space bar to select ‘Yes’ and press ENTER. This will bring you to ‘Menu 11.2 ­Remote Node PPP Options’ For more information on configuring PPP options, please see the section ‘Editing PPP Options’.
14. IP Addr - This is a required field if Route is set to ‘IP’. Enter the IP address of this Remote Node.
15. Edit IP - To edit the parameters of the protocols, go to this field, select ‘Yes’ and press ENTER. This will bring you to ‘Menu 11.3 - Remote Node Network Layer Options. For more information on filling out this screen, please refer to the chapter on TCP/IP protocol.
16. Telco Options: Transfer Rate - This field (which only applies to outgoing calls) controls the rate at which the data is transferred between your Prestige and the Remote Node. There are four options for this field:
64K - The Prestige will place 64Kbps (bits per second)
digital data calls.
56K - (For North America only) The Prestige will place
56Kbps digital data calls.
Remote Node Configuration 53
DOVBS - (For North America only) The Prestige will place
56Kbps Data Over Voice Bearer Service (DOVBS) call. Some phone companies in North America charge less if calls are made with DOVBS option.
17. Telco Options: Allocated Budget (min) - This field will set a ‘budget’ outgoing call time for the Remote Node. The default for this field is 0 for no budget control.
18. Telco Options: Period (hr) - This field will set the time interval to reset the above outgoing call budget control.
19. Session Option: Input Filter Sets, Output Filter Sets and Call Filter Sets - In these fields, select which filter set(s) you would like to implement to filter the incoming and outgoing traffic between this Remote Node and the Prestige. You can choose from 12 different filter sets. In addition, you can link up to 4 filter sets together for further customization (e.g., ‘1, 5, 9, 12’). Please note that spaces and ‘,’ are accepted in this field.
For more information on customizing your filter sets, please see
Chapter 8. The default is blank, i.e., no filters defined.
20. Session Option: Idle Timeout (sec) - This value specifies the number of idle seconds that elapses before the Remote Node is automatically disconnected. Idle seconds is the period of time where no data is passed between the Remote Node and your Prestige. Administrative packets such as RIP are not counted as data. The default is 300 seconds (5 minutes).
Once you have completed filling in ‘Menu 11.1 - Remote Node Profile’, press ENTER at the message: ‘Press ENTER to Confirm ...’ to confirm your selections, or press ESC at any time to cancel your selections.
54 Remote Node Configuration
Bandwidth on Demand
The Bandwidth on Demand (BOD) feature allows you to bundle both B channels in one logical connection. The second channel is added and subtracted dynamically according to traffic demand. The Prestige uses the Bandwidth Allocation Control Protocol (BACP) and the Multilink Protocol (MP) in implementing bandwidth on demand.
The configuration of bandwidth on demand focuses on the Base Transmission Rate (BTR) and the Max. Transmission Rate (MTR). The relationship between BTR and MTR are shown below:
BTR & MTR Setting No. of
channel(s) used
BTR = 64, MTR = 64 1 1 Off BTR = 64, MTR = 128 1 2 On BTR = 128, MTR = 128 2 2 Off
Max No. of channel(s) used
Bandwidth on demand
When bandwidth on demand is enabled, a second channel will be brought up if traffic on the initial channel is higher than the high Target Utility number for longer than the specified Add Persist value. Similarly, the second channel will be dropped if the traffic level falls below the low Target Utility number for longer than the Subtract Persist value.
The Target Utility specifies the line utilization range at which you want the Prestige to add or subtract bandwidth. The range is 30 to 64 kbps (kilobits per second). The parameters are separated by a ‘­’. For example, ‘30-60’ means the add threshold is 60 kbps and subtract threshold is 30 kbps. The Prestige will perform bandwidth on demand only if it initiates the call. Addition and subtraction are based on the value set in the BOD Calculation field. If this field is set to ‘Transmit or Receive’, then traffic in either direction will be calculated to determine if a link should be added or dropped. ‘Transmit’ will only use outgoing traffic to make this
Remote Node Configuration 55
determination, and ‘Receive’ will only use incoming traffic to make this determination.
If, after making the call to bring up a second channel, the second channel does not succeed in joining the Multilink Protocol bundle (because the remote device does not recognize the second call as coming from the same device), the Prestige will hang up the second channel and continue with the first channel alone.
Editing PPP Options
Figure 5-3 Remote Node PPP Options
1.
Encapsulation -
for the PPP or MP link. There are two options in this field.
Standard PPP
CISCO PPP -
2.
Compression -
this field is Off.
3.
Multiple Link Options: BOD Calculation
direction of the traffic you wish to calculate in order to determine when to add or subtract a link. The default for this field is Transmit or Receive.
56 Remote Node Configuration
Select CCP (Compression Control Protocol)
- Standard PPP options will be used. Cisco PPP options will be used.
Turn on the Stac Compression. The default for
- Select the
4. Multiple Link Options: Base Trans Rate - Select the base data transfer rate for this Remote Node. This parameter is in kilobits per second (Kbps). There are two options for this field:
64 - Only one channel will be used.
128 - Two channels will be used when a packet triggers a
call.
5. Multiple Link Options: Max Trans Rate - Enter the maximum data transfer rate allowed for this Remote Node. This parameter is in kilobits per second. There are two options for this field:
64 - At most one channel can be used.
128 - A maximum of two channels can be used.
6. Multiple Link Options: Target Utility - Enter the two thresholds separated by a ‘-’ for subtracting and adding the second channel. The default is 32-48.
7. Multiple Link Options: Add Persist - This parameter specifies the number of seconds there traffic is above the adding threshold before the Prestige will bring up the second channel. The default is 5 seconds.
8. Multiple Link Options: Subtract Persist - This parameter specifies the number of seconds where traffic is below the subtraction threshold before the Prestige drops the second channel. The default is 5 seconds.
Once you have completed ‘Menu 11.2 - Remote Node PPP Options’, press ENTER at the message: ‘Press ENTER to Confirm ...’ to confirm your selections, or press ESC to cancel your selections.
Remote Node Configuration 57
58 Remote Node Configuration

Dial-In Configuration
You can configure the Prestige to receive calls from Remote Dial­in Users (e.g. telecommuters) and Remote Nodes. There are several differences between Remote Dial-in Users and Remote Nodes:
1. The Prestige can make calls to or answer calls from the Remote Node. But the Prestige will only answer calls from the Remote Dial-in User.
2. Each Remote Node can have its own set of parameters such as Bandwidth On Demand, Protocol, Security, etc.; while all Remote Dial-in Users share one common set, as defined in the Default Dial In Setup (Menu 13).
3. Generally, Remote Dial-in Users are individual users who dial in to the Prestige directly from their workstations, while Remote Nodes represent networks and are used for LAN-to­LAN connections.
This chapter discusses how to setup Default Dial-in parameters for both Remote Node and Remote Dial-in User. The following sections give two examples of how the Prestige can be setup as a dial-in server for both.
Telecommuting
Telecommuting enables people to work at remote sites and yet still have access to resources in the business office. Typically, a telecommuter will uses a client workstation with TCP/IP or IPX and dial-out capabilities, e.g., a Windows 95 PC or a Macintosh and an ISDN Terminal Adapter (TA). For telecommuters to call in to your LAN, you need to configure a Dial-In User Profile for each
Dial-In Configuration 59
telecommuter. Additionally, you need to configure the Default Dial-In Setup to set the operational parameters for all dial-in users. You can configure up to eight Remote Dial-in Users for the Prestige.
An example of Remote Dial-in User application, telecommuting, is shown below:
Figure 6-1 Example of Remote User: Telecommuter
Dial-In Server Application
The Prestige can also be used as a dial-in server. This application allows the Prestige to provide services for workstations on a remote network. For the Prestige to be set up as a dial-in server, you need to configure the Default Dial-In Setup to set the operational parameters for incoming call. Additionally, you will have to create a Remote Node for the router on the remote network (see Chapter 5). An example of the Prestige being used as a dial-in server is shown below:
60 Dial-In Configuration
Figure 6-2 Example of a Dial-In Server Application
Default Dial-In Setup
This section covers the default dial-in parameters. The parameters in Menu 13 affect incoming calls from all Remote Dial-in Users and Remote Nodes before authentication is completed. Once authentication is completed, and if it matches a Remote Node, the Prestige will use parameters from that particular Remote Node.
Dial-In Configuration 61
Figure 6-3 Menu 13 - Default Dial-in Setup
From the Main Menu, enter ‘13’ to go to ‘Menu 13 - Default Dial­in Setup’. This section will describe how to configure the protocol­independent fields in this menu. For the protocol-dependent fields, please refer to the appropriate chapters.
1.
Telco Options: CLID Authen.
authentication parameter for all incoming calls. There are three options for this field:
2.
PPP Options: Recv. Authen. -
authentication protocol used for incoming calls. User names and passwords are configured in the next section (Remote users/Dial-in Users Setup). Options for this field are:
62 Dial-In Configuration
- This field sets the CLID
- No CLID is required.
None Required Preferred
- Must provide CLID, or call is disconnected.
- If the CLID is available then CLID will be used to do authentication. If the CLID is not available the call will continue.
This field sets the
CHAP/PAP
- Prestige will try CHAP first, but PAP will be
used if CHAP is not available.
CHAP
- use CHAP only.
None - no authentication required.
3. PPP Options: Mutual Authen. - Some vendors, e.g. Cisco,
implement a type of ‘mutual authentication’. That is, the node that initiates the call will request a user name and password from the far end that they are dialing to. If the Remote Node that is dialing in implements this type of authentication, set this field to ‘Yes’.
4. PAP Login - This field will only be enabled if the Mutual
Authen. field is set to ‘Yes’. Enter in the login name to be used to respond to the far end’s PAP authentication request. This field does not apply to CHAP authentication.
5. PAP Password - This field will only be enabled if the Mutual
Authen. field is set to ‘Yes’. Enter in the PAP password to be used to respond to the far end’s authentication request. This field does not apply to CHAP authentication.
6. Multiple Link Options: Max Trans Rate - Enter the
maximum data transfer rate between your Prestige and the Remote Dial-in User. The unit is in bits per second. There are two options for this field:
64 - At most, one B channel will be used.
128 - A maximum of two channels can be used.
When the Prestige calls back to the Remote Dial-in User the
maximum data transfer rate is always 64.
7. Callback Budget Management: Allocated Budget (min) -
This field will set a ‘budget’ callback time for all the Remote Dial-in Users. The default for this field is 0 for no budget control.
8. Callback Budget Management: Period (hr) - This field will
set the time interval to reset the above callback budget control.
9. Dial-In IP Address Supplied By: Dial-in User - If set to Yes,
it tells the Prestige to allow a remote host to specify its own IP
Dial-In Configuration 63
address. This is to prevent the remote host from using an invalid IP address and potentially disrupting the whole network. If set to No, the remote host must use the IP address assigned by the Prestige from the IP pool, configured below. The default is ‘Yes’.
10. Dial-In IP Address Supplied By: IP Pool - This field tells the
Prestige to provide the remote host with an IP address from the pool. This field is required if Dial-In IP Address Supplied By: Dial-in User is set to ‘No’. You can configure this field even if Dial-in User is set to ‘Yes’, in which case the Prestige will accept the IP address if the remote peer specifies one; otherwise, an IP address is assigned from the pool. The default is ‘No’.
11. IP Pool: IP Start Addr - This field is active only if you
selected ‘Yes’ in the Dial-In IP Address Supplied By: IP Pool field. The IP pool contains contiguous IP addresses and this field specifies the first one in the pool.
12. IP Count (1,2) - In this field, enter the number (1 or 2) of the
addresses in the IP Pool. For example, if the starting address is
192.168.135.5 and the count is 2, then the pool will have
192.68.135.5 and 192.68.135.6
13. Session Options: Input Filter Sets and Session Options: Output Filter Sets - In these fields, you need to select the filter set(s) to filter the incoming and outgoing traffic between your Prestige and the Remote Dial-in User. Please keep in mind that these filter set(s) will only apply to all Remote Dial-in Users but not the Remote Nodes.
You can choose from 12 different filter sets. In addition, you
can link up to 4 filter sets together for further customization (e.g., ‘1, 5, 9, 12’). Please note that spaces and ‘,’ are accepted in this field. For more information on customizing your filter
64 Dial-In Configuration
sets, please see Chapter 8 on Filter Configuration. The default is blank, i.e., no filters.
14. Session Options: Idle Timeout - This value is the number of idle seconds that elapses before the dial-in user is automatically disconnected. Idle Timeout is the period of time when there is no data traffic between the dial-in user or Remote Node and the Prestige. This field will only be used if the Recv. Authen is set to ‘None’ and the call is not mapped to any Remote Node or Remote Dial-in User or the Prestige calls back to the Remote Dial-in User.
Once you have completed filling in ‘Menu 13 - Default Dial-in Setup’, press ENTER at the message: ‘Press ENTER to Confirm ...’ to save your selections, or press ESC at any time to cancel your selections.
Dial-In Users Setup
The following steps describe the setup procedure for adding a Remote Dial-in User. From the Main Menu, enter ‘14’ to go to ‘14. Dial-in User Setup’ is shown below:
Figure 6-4 Menu 14 - Dial-in User Setup
Dial-In Configuration 65
Select one of eight users by number, this will bring you to Figure 6­2‘Menu 14.1 - Edit Dial-in User’.
Figure 6-5 Menu 14.1 - Edit Dial-in User
1.
User Name
- This is a required field. This will be used as the login name for authentication. Choose a descriptive word for login, e.g., brentharper.
2.
Active -
You can disallow dial-in access to this user by setting this field to Inactive. When set to inactive, the user record is still kept in the database for later activation. Deactivated users are displayed with a - (minus sign) at the beginning of the name in Menu 14.
3.
Password -
4.
Callback -
Enter the password for the Remote Dial-in User.
This field determines if the Prestige will allow call back to the Remote Dial-in User upon dial-in. If this option is enabled, the Prestige will be able to call back to the Remote Dial-in User if they request it. In such a case, the Prestige will disconnect the initial call from this user and dial back to the specified call back number (see below). The default is no callback.
66 Dial-In Configuration
5. Callback Phone # - If Callback is ‘Yes’, then this is a required
field. Otherwise, an ‘N/A’ will appear in the field. Enter the telephone number to which the Prestige will call back.
6. Callback Override - If Callback is ‘No’, an ‘N/A’ will appear
in the field. The callback override allows the Remote Dial-in User to specify the call back telephone number on call-by-call basis. This is useful for when the Prestige returns a call back to a mobile user at different numbers, e.g., a sales rep in a hotel. Please note that the default is ‘No’, i.e., the Prestige always calls back to the fixed callback number.
7. Rem CLID - If you have enabled the CLID Authen field in
Menu 13, then you need to specify the telephone number from which this Remote Dial-in User calls. The Prestige will check this number against the CLID in the incoming call. If they do not match and the CLID Authen is ‘Required’, then the Prestige will reject the call.
8. Idle Time-out - Enter the idle time (in seconds). This time-out
determines how long the dial-in user can be idle before the Prestige disconnects the call. Idle time is defined as the period of time where there is no data traffic between the dial-in user and the Prestige. The default is 300 seconds (5 minutes).
Once you have completed filling in ‘Menu 14.1 - Edit Dial-in User’ , press ENTER at the message: ‘Press ENTER to Confirm ...’ to save your selections, or press ESC at any time to cancel your selections.
More on CLID
CLID allows the Prestige to authenticate the caller before a call is answered, thus saving the cost of a connection. The Prestige uses the caller ID in the ISDN call setup message to match against the CLID in the database.
Dial-In Configuration 67
However, CLID may not be available due to your switch configuration.
Besides authentication, another application of CLID is to
combine
it with call back. For instance, your company pays for the connection charges for telecommuting employees, and you are using the Prestige as the dial in server. You can turn on both the CLID authentication and call back options for the dial-in users. By doing so, all usage are charged to the company instead of the employees, and your accounting department can avoid the hassles of accountability and reimbursement.
68 Dial-In Configuration

TCP/IP Configuration
This chapter shows you how to configure the Prestige for TCP/IP. Depending on your particular applications, you will need to configure different menus. For instance, Internet access is the most common application of TCP/IP. For this application, you should configure Menu 4. We will illustrate the configuration for other applications in the following sections.
IP Subnet Mask
A subnet mask is a 32-bit quantity that, when logically ANDed with an IP address, yields the network number. For instance, the subnet masks for class A, B and C without subnetting are
255.0.0.0, 255.255.0.0 and 255.255.255.0, respectively. To create more network numbers, you shift some bits from the host
ID to the network ID. For instance, to partition a class C network number 192.68.135.0 into two, you shift 1 bit from the host ID to the network ID. Thus the new subnet mask will be
255.255.255.128; the first subnet will have network number
192.68.135.0 with hosts 192.68.135.1 to 129.68.135.126 and the second subnet will have network number 192.68.135.128 with hosts 192.68.135.129 to 192.68.135.254.
It is recommended that you use the same subnet mask for all physical networks that share an IP network number. The table below lists the additional subnet mask bits in dot decimal notations. To use to following table, write down the original subnet mask and substitute the higher order 0’s with the dot decimal of the additional subnet bits. For instance, to partition your class C
TCP/IP Configuration 69
network 204.247.203.0 with subnet mask 255.255.255.0 into 16 subnets (4 bits), the new subnet mask becomes 255.255.255.240.
Number of Bits Dot Decimal
1 128 2 192 3 224 4 240 5 248 6 252 7 254 8 255
LAN-to-LAN Application
A typical LAN-to-LAN application is to use the Prestige to call from a branch office to the headquarters. Up to four users can access the Prestige simultaneously on the LAN as depicted in the following diagram:
Figure 7-1 LAN-to-LAN Application
For the branch office, you need to configure a Remote Node in order to dial out to the headquarters. Additionally, you may also
70 TCP/IP Configuration
need to configure Static Routes if some services reside beyond the immediate remote LAN.
Remote Node Setup
Follow the procedures in Chapter 5 to fill the protocol-independent parameters in Menu 11, Remote Node Profile. For the protocol­dependent parameters, follow the instructions below. If you are configuring the Prestige to receive an incoming call, you also need to set the default dial-in parameters in menu 13 (see Chapter 6).
1. Route - Make sure IP is among the protocols in the “Route“
field.
2. IP Address - Enter the IP address of the gateway at the remote
site (in this case, headquarters). If the remote router is using a different IP address than the one entered here, the Prestige will drop the call.
3. Edit IP - Press the space bar to change it to ‘Yes’ and press
Enter to go to the ‘Menu 11.3 - Remote Node Network Layer Options’ menu shown below:
Figure 7-2 Menu 11.3 - Remote Node Network Layer Options
4. Rem IP Address - This will show the IP address you entered
for this Remote Node in the previous menu.
TCP/IP Configuration 71
5. Rem IP Subnet Mask - Enter the subnet mask for the remote
network.
6. My WAN Addr - Some implementations, especially the UNIX
derivatives, require hosts on both ends of the ISDN link to have separate addresses from the LAN, and that the addresses must have the same network number. If this is the case, enter the IP address assigned to the WAN port of the Prestige. Please note that this is the address assigned to the local Prestige, not the remote router.
Figure 7-3 Sample IP Addresses
7. Single User Account - This field should be set to yes to enable
the Single User Account (Network Address Translation) feature for this site. Use the space bar to toggle between yes and no. See page for more information on the Single User Account feature.
8. Server IP address - If you are using the Single User Account
feature and you want to make a server accessible on your LAN, e.g., a web server, accessible to outside users, enter that servers IP address here.
72 TCP/IP Configuration
9. Metric - The metric represents the “cost” of transmission for
routing purpose. IP routing uses hop count as the measurement of cost, with a minimum of 1 for directly connected networks. Enter a number that approximates the cost for this link. The number need not be precise, but it must be between 1 and 16. In practice, 2 or 3 is usually a good number.
10. Private - This parameter determines if the Prestige will include
the route to this Remote Node in its RIP broadcasts. If set to yes, this route is kept private and not included in RIP broadcast. If no, the route to this Remote Node will be propagated to other hosts through RIP broadcasts.
11. RIP - This parameter determines how the Prestige handles RIP
(Routing Information Protocol), and the default is ‘Both’. If set to ‘Both’, the Prestige will broadcast its routing table on the WAN, and incorporate RIP broadcasts by the other router into its routing table. If set to ‘In Only’, the Prestige will not broadcast its routing table on the WAN; if set to ‘Out Only’, the Prestige will broadcast its routing table but ignores any RIP broadcast packets that it receives. If set to ‘None’, the Prestige will not participate in any RIP exchange with other routers. Usually, you should leave this parameter at its default of ‘Both’ and let RIP propagate the routing information automatically.
Once you have completed filling in the Network Layer Options Menu, press ENTER to return to Menu 11. Press ENTER at the message: ‘Press ENTER to Confirm ...’ to save your selections, or press ESC at any time to cancel your selections.
Static Route Setup
On a directly connected internet, RIP usually handles the routing automatically. However, RIP cannot propagate across isolated networks, as in the case before a connection is made between the two subnetworks using one Class C IP address. Without a route, no packets can be forwarded to their destinations. A static route is
TCP/IP Configuration 73
used to resolve this problem by providing the Prestige with some static routing information. As a matter of fact, when you configure the Internet Access or a Remote Node, a static route is implicitly created by the Prestige. An example is given below. In the example, stations on the ‘204.5.1.0/24’ subnetwork can access the remote stations using the static route. The route will have a destination of ‘204.5.1.64/26’ with the gateway address being that of the Remote Node (204.5.1.150).
Figure 7-4 Static Routing Example
Please note that in normal circumstances, the Prestige will have adequate routing information after you configure the Internet access and Remote Nodes; you do not need to configure additional static routes. You will need to configure static routes only for unusual cases, e.g., subnetting. To create an additional static routes for IP, use Menu 12, Static Route Setup as shown below:
74 TCP/IP Configuration
Figure 7-5 Menu 12 - Static Route Setup - Main Menu
Figure 7-6 IP Static Route Setup
1. Route Name - Enter a descriptive name for this route. This is
for identification purpose only.
2. Active - This fields allows you to activate/deactivate this static
route.
3. Destination IP Address - This parameter specifies the IP
network
address of the final destination. Routing is always based on network number. If you need to specify a route to a single host, use a subnet mask of 255.255.255.255 in the subnet
TCP/IP Configuration 75
mask field to force the network number to be identical to the host ID.
4. IP Subnet Mask - Enter the subnet mask for this destination.
Please follow the discussion on IP subnet mask in this chapter.
5. Gateway IP Address - Enter the IP address of the gateway.
The gateway is an
immediate
neighbor of the Prestige that will forward the packet to the destination. On the LAN, the gateway must be a router on the same segment as the Prestige; over ISDN, the gateway must be the IP address of one of the Remote Nodes.
6. The Metric and the Private parameters have the same
meaning as those in the Remote Node Setup.
Once you have completed filling in the menu, press ENTER at the message: ‘Press ENTER to Confirm ...’ to save your selections, or press ESC at any time to cancel your selections.
76 TCP/IP Configuration

Filter Configuration
About Filtering
The Prestige uses filters to decide whether or not to allow passage of a data packet and/or to make a call over the ISDN line. There are three types of filters involved: incoming data filters, outgoing data filters, and call filters. Data filters screen the data to determine if the packet should be allowed to pass. Call filters are used to determine if a call should be placed.
Outgoing packets must pass through the data filters before they encounter the call filters. Call filters are divided into two groups: default call filters and user-defined call filters. Prestige has default call filters that filter out administrative packets, e.g., RIP and SAP packets. The Prestige applies the default filters first and then the user-defined call filters if applicable as seen below:
Filter Configuration 77
Figure 8-1 Outgoing Packet Filtering Process
For incoming packets, the Prestige applies data filters only. Packets are processed depending upon whether a match is made. The Prestige allows you to customize the filter sets that you wish to use. This following sections describe how to configure the Prestige’s filter sets.
Prestige’s Filter Structure
You can configure up to twelve filter sets with six rules in each set. Therefore, the Prestige allows you to customize up to 72 filter rules (12 x 6).
When implementing these filter sets, you can link up to four of the filter sets together to screen the data packet. Therefore, with each filter set having up to six rules, you can have a maximum of 24 rules active for a single filtering application.
78 Filter Configuration
Configuring a Filter Set
In order to distinguish between the 12 filter sets, each filter set should have a name or some comments. You can edit these comments in the following way.
1. From the Main Menu, select option ‘21. Filter Set Configuration’. This will bring you to ‘Menu 21 - Filter Set Configuration’.
2. From this menu, you can choose from among the twelve filter sets. Select the filter set you wish to configure (1-12).
This will bring you to the Edit Comments field. Whatever the comments are for that filter set will be displayed in this field. You can edit the comments you wish to use to identify that filter set.
Once you have completed filling in the Edit Comments field, press ENTER at the message: ‘Press ENTER to Confirm ...’ to confirm your selections, or press ESC at any time to cancel your selections. The new information will now be displayed in the read-only section of ‘Menu 21 - Filter Set Configuration’ as shown below:
Figure 8-2 Menu 21 - Filter Set Configuration
Once you press ENTER, you will be taken to ‘Menu - 21.1 - Filter Rules Summary’ as seen below. The information displayed in this
Filter Configuration 79
menu is read-only. From here, you can examine the parameters of each rule that you have configured for that set. The following is a brief description of the abbreviations used in this menu.
# - Refers to the filter rule number (1-6)
A - Refers to Active. ‘Y’ means the filter rule is active and ‘N’
means the filter rule is inactive.
Type - Refers to the type of filter rule. This can display ‘GEN’ for generic, or ‘IP’ for TCP/IP.
Filter Rules - The filter rule parameters will be displayed here (see below).
M - Refers to More. ‘Y’ means there are more rules to check, ‘N’ means there aren’t.
m - Refers to Action Matched. ‘F’ means to forward the packet, ‘D’ means to drop the packet, and ‘N’ means check the next rule.
n - Refers to Action Not Matched. ‘F’ means to forward the packet, ‘D’ means to drop the packet, and ‘N’ means check the next rule.
80 Filter Configuration
Figure 8-3 Menu 21.1 - Filter Rules Summary
If the filter type is ‘IP’ (TCP/IP), the following abbreviations will be used:
- Protocol.
Pr
- Source Address.
SA
- Source Port number.
SP
- Destination Address.
DA
- Destination Port number.
DP
If the filter type is ‘GEN’ (generic), the following abbreviations will be used:
- Offset.
Off Len
- Length.
For more information on configuring the filter rule parameters, please refer to the next section.
To configure a specific filter rule, simply select the number of the filter rule (1-6) you wish to configure and press ENTER. This will take you to ‘Menu 21.1.1 - TCP/IP Filter Rule’ (next section).
Filter Configuration 81
Configuring a Filter Rule
There are four types of filter rules that you can configure. Some of the parameters will differ depending on the type of rule. When you first enter the filter rule menu, you will be presented with ‘Menu
21.1.1 - TCP/IP Filter Rule’. If you wish to configure another type
of filter rule, you need to select the appropriate type (by pressing SPACE bar) under the Filter Type field and press ENTER. This will bring you to the corresponding menu.
TCP/IP Filter Rule
This section will show you how to configure a TCP/IP filter rule for your Prestige. The fields in the menu are indicated in bold type.
Figure 8-4 Menu 21.1.1 - TCP/IP Filter Rule
1. Active - In this field, you can make the filter rule active or inactive. There are two options:
Yes.
No.
2. IP Protocol - Protocol refers to the IP specific number of the protocol. The range for this value should be between 0 and 255. For example, ‘6’ refers to the TCP protocol.
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3. IP Source Route - Determine, ‘Yes’ or ‘No’, whether to check the source route.
4. Destination: IP Addr - In this field, enter the destination IP Address of the packet you wish to filter. The address is usually written in dotted decimal notation such as a.b.c.d where a, b, c, and d are numbers between 0 and 255.
5. Destination: IP Mask - In this field, enter in the IP mask that will be used to mask the bits of the IP Address given in Destination: IP Addr.
6. Destination: Port # - Enter the destination port of the packets that you wish to filter. The range of this field is 0 to 65535.
7. Destination: Port # Comp - In this field, you can select what comparison quantifier you wish to enable to compare to the value given in Destination: Port #. There are five options for this field:
None.
Less.
Greater.
Equal.
Not Equal.
8. Source: IP Addr - In this field, enter the source IP Address of the packet you wish to filter. The address is usually written in dotted decimal notation such as a.b.c.d where a, b, c, and d are numbers between 0 and 255.
9. Source: IP Mask - In this field, enter in the IP mask that will be used to mask the bits of the IP Address given in Source: IP Addr.
10. Source: Port # - Enter the source port of the packets that you wish to filter. The range of this field is 0 to 65535.
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11. Source: Port # Comp - In this field, you can select what comparison quantifier you wish to use to compare to the value given in Source: Port #. There are five options for this field:
None.
Less.
Greater.
Equal.
Not Equal.
12. TCP Estab - This field is dependent upon the IP Protocol field. This field will be inactive (‘N/A’) unless the value in that field is 6 (TCP protocol). In this field you determine what type of TCP packets to filter. There are two options:
Yes - filter match only established TCP connections.
No - filter match both initial and established TCP
connections.
13. More - In this field, you can determine if you want to pass the packet through the next filter rule before an action is taken. There are two options for this field:
Yes.
No.
If More is ‘Yes’, then Action Matched and Action Not
Matched will be ‘N/A’.
14. Log - In this field, you can determine if you wish to log the results of packets attempting to pass the filter rule. These results will be displayed on the System Log (see Chapter 11). There are 4 options for this field:
None - No packets will be logged.
Action Matched - Only packets that match the rule
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parameters will be logged.
Action Not Matched - Only packets that do not match the
rule parameters will be logged.
Both - All packets will be logged.
15. Action Matched - If the conditions for the filter rule are met, you can specify what to do with the packet. There are three options for this field:
Check Next Rule.
Forward.
Drop.
16. Action Not Matched - If the conditions for the filter rule are not met, you can specify what to do with the packet. There are three options for this field:
Check Next Rule.
Forward.
Drop.
Once you have completed filling in ‘Menu 21.1.1 - TCP/IP Filter Rule’, press ENTER at the message: ‘Press ENTER to Confirm ...’ to confirm your selections, or press ESC at any time to cancel your selections. This data will now be displayed on ‘Menu 21.1 - Filter Rules Summary’.
Generic Filter Rule
This section will show you how to configure the protocol­independent parameters for a Generic filter rule for your Prestige. For information on the protocol-dependent fields, refer to the previous section, ‘TCP/IP Filter Rule’. The fields in the menu are indicated in bold type.
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Figure 8-5 Menu 21.1.1 - Generic Filter Rule
1.
Offset -
Offset refers to the value of the byte that you want to use as your starting offset. That is, in the data packet, at what point do you want to begin the comparison. The range for this field is from 0 to 255.
2.
Length -
This field refers to the length (in bytes) of the data in
Default = 0
the packet that the Prestige should use for comparison and masking. The starting point of this data is determined by The range for this field is 0 to 8.
3.
Mask -
In this field, specify (in Hexadecimal) the value that the
Default = 0
Prestige should logically qualify [and] the data in the packet. Since
Length
is given in bytes, you need to enter in twice the
length hexadecimal numbers for this field. For example, if
Length
were ‘4’, then a valid
must have 8 hexadecimal
Mask
numbers, like ‘1155ABF8’.
4.
Value -
In this field, specify (in Hexadecimal) the value that the Prestige should use to compare with the masked packet. The value should align with
Offset
. Since
Length
is given in bytes, you need to enter in twice the length hexadecimal numbers for this field. For example, if valid
must have 8 hexadecimal numbers, like
Value
Length
were ‘4’, then a
Offset
.
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‘1155ABF8’. If the result from the masked packet matches Value, then the packet is considered matched.
Once you have completed filling in ‘Menu 21.1.1 - Generic Filter Rule’, press ENTER at the message: ‘Press ENTER to Confirm ...’ to confirm your selections, or press ESC at any time to cancel your selections. This data will now be displayed on ‘Menu 21.1 - Filter Rules Summary’.
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88 Filter Configuration
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