Paradyne Hotwire 6302 User manual

Hotwire®DSL Routers
Models 6301, 6302, 6341, 6342,
6351, and 6371
User’s Guide
Document No. 6300-A2-GB20-10
November 2003

ANovember 2003 6300-A2-GB20-10
Copyright © 2003 Paradyne Corporation.
All rights reserved.
Printed in U.S.A.
Notice
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by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties without the express
written permission of Paradyne Corporation, 8545 126th Ave. N., Largo, FL 33773.
Paradyne Corporation makes no representation or warranties with respect to the contents hereof and specifically
disclaims any implied warranties of merchantability or fitness for a particular purpose. Further, Paradyne Corporation
reserves the right to revise this publication and to make changes from time to time in the contents hereof without
obligation of Paradyne Corporation to notify any person of such revision or changes.
Changes and enhancements to the product and to the information herein will be documented and issued as a new
release to this manual.
Warranty, Sales, Service, and Training Information
Contact your local sales representative, service representative, or distributor directly for any help needed. For additional
information concerning warranty, sales, service, repair, installation, documentation, training, distributor locations, or
Paradyne worldwide office locations, use one of the following methods:
 Internet: Visit the Paradyne World Wide Web site at www.paradyne.com. (Be sure to register your warranty at
www.paradyne.com/warranty.)
 Telephone: Call our automated system to receive current information by fax or to speak with a company
representative.
— Within the U.S.A., call 1-800-870-2221
— Outside the U.S.A., call 1-727-530-2340
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Trademarks
ACCULINK, COMSPHERE, ETC, EtherLoop, FrameSaver, GranDSLAM, Hotwire, the Hotwire logo, Jetstream, MVL,
NextEDGE, OpenLane, Paradyne, the Paradyne logo, Paradyne Credit Corp., the Paradyne Credit Corp. logo,
Performance Wizard, StormPort, and TruePut are all registered trademarks of Paradyne Corporation. ADSL/R,
BitStorm, Connect to Success, GrandVIEW, Hotwire Connected, iMarc, JetFusion, JetVision, MicroBurst, PacketSurfer,
ReachDSL, Spectrum Manager, StormTracker, and TriplePlay are trademarks of Paradyne Corporation. All other
products and services mentioned herein are the trademarks, service marks, registered trademarks, or registered
service marks of their respective owners.

6300-A2-GB20-10 November 2003 i
Contents
About This Guide
Document Purpose and Intended Audience . . . . . . . . . . . . . . . . . . . . vii
New Features for this Release. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Document Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Product-Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
1 Introduction to Hotwire DSL Routers
What is a Hotwire DSL Router? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
DSL Technologies Supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Typical DSL Router System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Hotwire DSL Router Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Service Subscriber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2 Accessing the DSL Router
Access Control to the DSL Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Levels of Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Local Console Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Changing Access Session Levels . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Setting Up the New User’s Login . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Telnet Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Determining the Current Access Level. . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Determining the Available Commands . . . . . . . . . . . . . . . . . . . . . 2-5
Using the List Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Changing the System Identity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Exiting from the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Manually Logging Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Automatically Logging Out. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3 Configuring the DSL Router
DSL Router Configuration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
The DSL Router’s Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Interface Identifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Contents
ii November 2003 6300-A2-GB20-10
Service Domain IP Address Assignments. . . . . . . . . . . . . . . . . . . . . . 3-2
Numbered DSL or Ethernet Interface . . . . . . . . . . . . . . . . . . . . . . 3-3
Unnumbered DSL Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
IP Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
IP Options Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Network Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Address Resolution Protocol (ARP) . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Proxy ARP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Network Address Translation (NAT) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Basic NAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Network Address Port Translation (NAPT/PAT) . . . . . . . . . . . . . . 3-7
Simultaneous Basic NAT and NAPT . . . . . . . . . . . . . . . . . . . . . . . 3-8
Applications Supported by NAT. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Dynamic Host Configuration Protocol (DHCP) Server . . . . . . . . . . . . . 3-9
DHCP Relay Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
IP Protocol Type Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Ethernet Type Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Land Bug/Smurf Attack Prevention . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Routed vs. Bridged PDUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
PPPoE Client Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
4 DSL Router Configuration Examples
Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Basic Bridging Configuration Example . . . . . . . . . . . . . . . . . . . . . 4-2
Basic Routing Configuration Example . . . . . . . . . . . . . . . . . . . . . . 4-3
Basic NAT Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . 4-4
NAPT Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Simultaneous Basic NAT and NAPT Configuration Example . . . . 4-8
Unnumbered DSL Interface with Proxy ARP Configuration Example 4-
10
DHCP Relay with Proxy ARP Configuration Example . . . . . . . . . . 4-11
DHCP Server with Basic NAT Configuration Example . . . . . . . . . 4-12
PPPoE Client with NAPT and DHCP Server Configuration Example 4-
13
Downstream Router Configuration Example . . . . . . . . . . . . . . . . . 4-14
IP Passthrough Configuration Example. . . . . . . . . . . . . . . . . . . . . 4-15
5 Monitoring the DSL Router
Monitoring the Router. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Contents
6300-A2-GB20-10 November 2003 iii
LED Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Interface Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Performance Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Clearing Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Reasons for Discarded Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
6 Diagnostics and Troubleshooting
Diagnostics and Troubleshooting Overview. . . . . . . . . . . . . . . . . . . . . 6-1
Device Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Alarms Inquiry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
System Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
SYSLOG Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
SYSLOG Message Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Ping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Ping Test Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
TraceRoute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
TraceRoute Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
A Command Line Interface
Command Line Interface Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Navigating the Router’s CLI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Command Recall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Syntax Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
CLI Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Configuration Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
RFC 1483 Encapsulation Command . . . . . . . . . . . . . . . . . . . . . . . A-5
Ethernet Frame Format Command . . . . . . . . . . . . . . . . . . . . . . . . A-5
Interface and Service Domain IP Address Commands . . . . . . . . . A-6
IP Routing Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Bridge Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
ARP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Proxy ARP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
NAT Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
DHCP Server Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-14
DHCP Relay Agent Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . A-16
IP Packet Processing Commands . . . . . . . . . . . . . . . . . . . . . . . . . A-17
PPPoE Client Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-18
Telnet Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-21
Traps Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-23
Clearing Statistics Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-23

Contents
iv November 2003 6300-A2-GB20-10
Show Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-24
B Configuration Defaults and Command Line Shortcuts
Configuration Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Command Line Shortcuts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
C Traps and MIBs
SNMP Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Traps Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
DSL Router Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
MIBs Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Standard MIBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
MIB II (RFC 1213) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
System Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Interfaces Group (RFC 1573) . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5
Extension to Interfaces Table (RFC 1573) . . . . . . . . . . . . . . . . . . C-7
IP Group (RFC 1213). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
IP CIDR Route Group (RFC 2096) . . . . . . . . . . . . . . . . . . . . . . . . C-9
Transmission Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10
SNMP Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10
Ethernet-Like MIB (RFC 2665) . . . . . . . . . . . . . . . . . . . . . . . . . . . C-11
Paradyne Enterprise MIBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-11
Device Control MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-12
Device Diagnostics MIB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-13
Health and Status MIB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-16
Configuration MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-17
Interface Configuration MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-18
ARP MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-18
NAT MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-18
DHCP MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-19
DSL Endpoint MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-20
SYSLOG MIB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-20
Interface Configuration MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-20
D DSL Router Terminal Emulation
DSL Router Terminal Emulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
Accessing the List Command Output . . . . . . . . . . . . . . . . . . . . . . D-1
Terminal Emulation Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

Contents
6300-A2-GB20-10 November 2003 v
E Firmware Upgrade
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
Firmware Upgrade Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
Firmware Upgrade Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2
Index

Contents
vi November 2003 6300-A2-GB20-10

6300-A2-GB20-10 November 2003 vii
About This Guide
Document Purpose and Intended Audience
This guide describes how to configure and operate Hotwire DSL routers. It
addresses the following models:
Hotwire 6301/6302 IDSL Router
Hotwire 6341/6342 Symmetric DSL Router
Hotwire 6351 ReachDSL Router
Hotwire 6371 RADSL Router
This document is intended for administrators and operators who maintain the
endpoints at customer premises. A basic understanding of internetworking
protocols and their features is assumed. Specifically, you should have familiarity
with the following internetworking concepts:
TCP/IP applications
IP and subnet addressing
IP routing
Bridging
It is also assumed that you have already installed a Hotwire DSL Router. If not,
refer to Product-Related Documents for installation documents.

About This Guide
viii November 2003 6300-A2-GB20-10
New Features for this Release
This version of the Hotwire DSL Routers User’s Guide documents firmware
release 4.4, which adds the following new features for the Hotwire 6351
ReachDSL Router:
IP passthrough. This feature allows the router to pass through or share its
public IP address with a single LAN device. The DSL router establishes a
PPPoE and PPP session with the Network Access Server (NAS). The public
IP address is negotiated via IPCP, installed on the router’s DSL interface, and
served to the passthrough device via DHCP.
Automatic configuration of options provided by the DHCP server to its clients.
This feature is available when PPPoE is enabled and is the default unless
explicitly refused by the user. This allows the DHCP Server option
configuration items to be set automatically with values negotiated during the
network layer protocol phase of PPP (IPCP).
Secondary DNS server. The DHCP server can specify a secondary DNS
server in its offer to a client.
No router option required. Configuration of the DHCP Server feature no longer
requires that a value for the Router option be specified.

About This Guide
6300-A2-GB20-10 November 2003 ix
Document Summary
A master glossary of terms and acronyms used in Paradyne documents is
available on the Web at www.paradyne.com. Select Library →Te chnic al
Manuals →Technical Glossary.
Section Description
Chapter 1, Introduction to Hotwire
DSL Routers
Provides an overview of the Hotwire DSL Routers.
Chapter 2, Accessing the DSL
Router
Describes the Hotwire DSL Routers access control
and provides instructions on how to log in and log
out of the system.
Chapter 3, Configuring the DSL
Router
Describes the DSL router interfaces, Domain Types,
IP Routing, and network considerations.
Chapter 4, DSL Router
Configuration Examples
Presents several common DSL router configuration
examples.
Chapter 5, Monitoring the DSL
Router
Describes operator programs that monitor the
Hotwire system.
Chapter 6, Diagnostics and
Troubleshooting
Describes common Hotwire operational problems
and solutions. Contains SysLog information.
Appendix A, Command Line
Interface
Provides explanation of the DSL router’s Command
Line Interface and command syntax with examples.
Appendix B, Configuration Defaults
and Command Line Shortcuts
Provides a list of all configuration options with
factory default settings and a list of all command line
shortcuts with the abbreviated command line input.
Appendix C, Traps and MIBs Summarizes the MIBs and SNMP traps supported
by the DSL routers.
Appendix D, DSL Router Terminal
Emulation
Provides configuration setup procedures for two
common text file programs.
Appendix E, Firmware Upgrade Provides commands and procedures for performing
a firmware upgrade for the Hotwire 6351 ReachDSL
Router from the service domain.
Index Lists key terms, acronyms, concepts, and sections
in alphabetical order.

About This Guide
xNovember 2003 6300-A2-GB20-10
Product-Related Documents
Contact your sales or service representative to order additional product
documentation.
Paradyne documents are also available on the World Wide Web at
www.paradyne.com. Select Library →Technical Manuals →
Hotwire DSL Systems.
Document Number Document Title
5030-A2-GN10 Hotwire 5030 POTS Splitter Customer Premises
Installation Instructions
5038-A2-GN10 Hotwire 5038 Distributed POTS Splitter Customer
Premises Installation Instructions
6050-A2-GZ40 Hotwire Central Office Universal POTS Splitter, Models
6050 and 7020, Installation Instructions
6301-A2-GN10 Hotwire 6301/6302 IDSL Routers Installation
Instructions
6341-A2-GN10 Hotwire 6341/6342 SDSL Routers Installation
Instructions
6351-A2-GN10 Hotwire 6351 ReachDSL Router Installation Instructions
6371-A2-GB20 Hotwire DSL Router User’s Guide (previous versions of
this document)
6371-A2-GN10 Hotwire 6371 RADSL Router Installation Instructions
8000-A2-GB22 Hotwire Management Communications Controller
(MCC) Card, IP Conservative, User's Guide
8000-A2-GB26 Hotwire MVL, ReachDSL, RADSL, IDSL, and SDSL
Cards, Models 8310, 8312/8314, 8510/8373/8374,
8303/8304, and 8343/8344, User's Guide

About This Guide
6300-A2-GB20-10 November 2003 xi
Document Conventions
The following conventions are used throughout this document.
Convention Translation
[ ] Square brackets represent an optional element.
{ } Braces represent a required entry.
|Vertical bar separates mutually exclusive elements.
Italics Entry is a variable to be supplied by the operator.
Bold Enter (type) as shown.
x.x.x.x 32-bit IP address and mask information where xis an
8-bit weighted decimal notation.
xx:xx:xx:xx:xx:xx MAC address information where xis a hexadecimal
notation.

About This Guide
xii November 2003 6300-A2-GB20-10

6300-A2-GB20-10 November 2003 1-1
1
Introduction to Hotwire
DSL Routers
What is a Hotwire DSL Router?
The Hotwire®DSL (Digital Subscriber Line) Router operates as a bridge and IP
router connecting a DSL link to an Ethernet network. This system provides
high-speed access to the Internet or a corporate network over a traditional
twisted-pair copper telephone line to the end user.
DSL Technologies Supported
Paradyne’s Hotwire DSL network supports the following types of technologies:
Hotwire IDSL (ISDN DSL) products provide IDSL multirate symmetric packet
transport and can operate over a connection with an ISDN repeater or digital
facilities. Data rates of 64 Kbps, 128 Kbps, or 144 Kbps can be configured.
Hotwire SDSL (Symmetric DSL) packet-based products provide high-speed
symmetric DSL services with bandwidth for business applications. These
products are configurable from 144 Kbps up to 2.3 Mbps. This gives service
providers the opportunity to sell multiple services with a single product.
Hotwire ReachDSL™ packet-based products provide high-speed Internet or
corporate LAN access over traditional twisted-pair copper telephone wiring,
regardless of line conditions (poor quality loops, long loops, or bad wiring at
customer premises), for guaranteed service delivery up to 18,000 feet. These
products are configurable from 128 Kbps up to 960 Kbps and give service
providers the opportunity to sell multiple services using a single product.
Hotwire RADSL (Rate Adaptive DSL) products are applicable for both
asymmetric and symmetric applications. The 1 Mbps symmetric operation is
ideal for traditional business applications while the 7 Mbps downstream with
1.1 Mbps upstream asymmetric operation provides added bandwidth for
corporate Internet access. RADSL products can also save line costs by
optionally supporting simultaneous data and voice over the same line.

1. Introduction to Hotwire DSL Routers
1-2 November 2003 6300-A2-GB20-10
Typical DSL Router System
DSL is a local loop technology that uses standard twisted-pair copper wire to
support high-speed access over a single pair of twisted copper wires. DSL
applications are point-to-point, requiring DSL devices at central and end-user
sites.
Hotwire DSL routers interoperate with the following types of Hotwire DSL line
cards, at the DSLAM (Digital Subscriber Line Access Multiplexer) or GranDSLAM
chassis, to deliver applications at high speeds, supporting packet services over a
DSL link:
Hotwire 8303 or 8304 IDSL Cards interoperate with two Hotwire IDSL Routers:
— Hotwire 6301 IDSL Router with one Ethernet port
— Hotwire 6302 IDSL Router with a 4-port Ethernet hub
Hotwire 8343 or 8344 SDSL Cards interoperate with two Hotwire Symmetric
DSL Routers:
— Hotwire 6341 SDSL Router with one Ethernet port
— Hotwire 6342 SDSL Router with a 4-port Ethernet hub
Hotwire 8312 or 8314 ReachDSL Cards interoperate with the Hotwire 6351
ReachDSL Router with one Ethernet port
Hotwire 8510, 8373, and 8374 RADSL Cards interoperate with the Hotwire
6371 RADSL Router with one Ethernet port
The following illustration shows a typical Hotwire system with a Hotwire DSL
Router. All Hotwire DSL routers transport data. The Hotwire 6371 RADSL Router
can transport data and POTS simultaneously.
Legend: DSL – Digital Subscriber Line IPC – Interworking Packet Concentrator
MDF – Main Distribution Frame POTS – Plain Old Telephone Service
SN – Service Node
GranDSLAM
Central Office (CO)
01-16968
Customer Premises (CP)
ATM
SN
CP
POTS
Splitter
CO
POTS
Splitter
MDF POTS/DSL
Hotwire
IPC
Voice
Interface
Data
Interface
POTS
Network
Service
Provider
Optional
Optional
Switched
Network
DSL
CARD
SCM

1. Introduction to Hotwire DSL Routers
6300-A2-GB20-10 November 2003 1-3
Hotwire DSL Router Features
Hotwire DSL routers contain the following features.
IP routing with:
— NAT (Network Address Translation)
— NAPT (Network Address Port Translation), also called PAT (Port Address
Translation)
— Simultaneous Basic NAT (for several fixed servers) and NAPT (on the rest
of the PCs on the LAN)
— DHCP Server (Dynamic Host Configuration Protocol) and DHCP Relay
Agent
— A full set of IP filters, two per DSL card (one for upstream and one for
downstream traffic), with up to 33 rules per filter
— SNMP Set/Get capability
Three Configurable Modes of Operation. Supports the following modes of
operation:
— IP routing only
— IP routing, and bridging of all other protocols (using VNET mode)
— Bridging all protocols (using VNET mode)
Protocol Filters. Provides the ability to:
— Filter MAC frames when bridging
— Configure two Ethertype filters via the Hotwire DSL card, one for upstream
and one for downstream traffic, with up to 16 filter rules per filter
— Compare the Ethertype in frames to a particular value, or configured set of
values, to perform filtering
— Support ICMP (Internet Control Management Protocol) filters for firewalls
via the Hotwire DSL card, based on the ICMP message type, to selectively
discard some ICMP message types while forwarding others
High-speed Internet or intranet access.
Diagnostics. Provides the capability to diagnose device and network
problems and perform tests.
Device and Test Monitoring. Provides the capability of tracking and
evaluating the unit’s operation.
Remote Firmware Download. Provides easy setup and activation of
firmware upgrades from a remote location.
Security. Provides multiple levels of security, which prevents unauthorized
access to the DSL router.

1. Introduction to Hotwire DSL Routers
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Console Terminal Interface. Provides an interface for:
— Configuring and managing the DSL router
— Local console access
Management from an NMS using SNMP.
In addition, the following features are provided for the Hotwire 6351 ReachDSL
Router:
Telnet access to the Command Line Interface (CLI) in the service domain for
Network Service Provider (NSP) use.
TFTP client support for NSP service domain software downloads.
SYSLOG availability in the service domain.
Point-to-Point Protocol over Ethernet (PPPoE) client provided as defined in
RFC 2516.
Asymmetric maximum upstream/downstream setting.
Service Subscriber
The Service Subscriber is the user (or set of users) that has contracted to receive
networking services (e.g., Internet access, remote LAN access) for the end-user
system from an NSP (Network Service Provider). Service subscribers may be:
Residential users connected to public network services (e.g., the Internet)
Work-at-home users connected to their corporate intranet LAN
Commercial users at corporate locations (e.g., branch offices) connected to
other corporate locations or connected to public network services
A Hotwire DSL Router must be installed at the customer premises to provide the
end user with access to any of the above services.
NOTE:
If you would like more information on DSL-based services, applications, and
network deployment, refer to Paradyne’s The DSL Sourcebook. The book
may be downloaded or ordered through Paradyne’s World Wide Web site at
www.paradyne.com/library.

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2
Accessing the DSL Router
Access Control to the DSL Router
The Hotwire DSL Router can be managed from an NMS using SNMP or from the
Command Line Interface (CLI). There are several methods available for accessing
the command line interface:
Local access at the DSL router through the Console port.
Access by a Telnet session (controlled through the management interface at
the Hotwire chassis).
For the Hotwire 6351 ReachDSL Router, access by a Telnet session from the
service domain.
The Hotwire DSL Router accepts only one login session at a time.
Levels of Access
There are two levels of privileges on the Hotwire DSL system:
Administrator. The Administrator has two levels of access to the DSL router.
— Administrator, non-configuration mode: Provides read-only capabilities.
This is the same level of access as Operator.
— Administrator, configuration mode: Provides complete write access to the
DSL router.
Operator. The Operator has read-only access to display device information
with no modification permission and no access to management functions.
Refer to Appendix A, Command Line Interface, for access level details for each
command line entry.
For local console access, the Operator and Administrator have the same Login ID,
but with different passwords for their access level. For Telnet access through the
service domain for the ReachDSL Router, up to four login/password/access level
combinations can be configured.

2. Accessing the DSL Router
2-2 November 2003 6300-A2-GB20-10
Local Console Access
Your user account can be configured with one user login name and different
passwords for accessing a CLI session. The DSL router ships with the local
console enabled. After login, the local console can be disabled.
To disable with the local console, type:
console disable
save
exit
Press Enter after each command that you type.
Entering console disable results in NO local access to the DSL router. If
you attempt to log in, you will receive an error message.
After saving this change and ending the session, there is no local access
through the console port. Any access must be through a Telnet session or
the NMS.
To determine via a Telnet session whether a console is enabled, enter:
show console
One of the following messages is returned:
—console enabled – Command line management is available at the
console.
—console disabled – No command line management is available at the
console.
Changing Access Session Levels
To change the Administrator access level, enter:
admin enable
This command provides Administrator access privileges. The router responds
with a prompt to enter the password for Administrator access.
To end the Administrator access level, enter:
admin disable
This command ends the Administrator session. No password is needed.
Entering exit has the same result. Refer to Exiting from the System on
page 2-7 for further details on ending a session.
To determine the access level for a session, refer to Determining the Current
Access Level on page 2-5.