THOMSON SpeedTouch User manual

SpeedTouch™
(Wireless) Business DSL Routers
Internet Connection
Configuration Guide
Power
Ethernet
WLAN
Plug-in
ISDN
Internet
DSL
Release R5.4 and higher

SpeedTouch™
Internet Connection
Configuration Guide
R5.4 and higher

Copyright
Copyright ©1999-2006 THOMSON. All rights reserved.
Distribution and copying of this document, use and communication of its contents is not permitted without written authorization
from THOMSON. The content of this document is furnished for informational use only, may be subject to change without notice,
and should not be construed as a commitment by THOMSON. THOMSON assumes no responsibility or liability for any errors or
inaccuracies that may appear in this document.
Thomson Telecom Belgium
Prins Boudewijnlaan, 47
B-2650 Edegem
Belgium
www.speedtouch.com
Trademarks
The following trademarks are used in this document:
SpeedTouch™ is a trademark of THOMSON.
DECT is a trademark of ETSI.
Bluetooth® word mark and logos are owned by the Bluetooth SIG, Inc.
Ethernet™ is a trademark of Xerox Corporation.
Wi-Fi® and the Wi-Fi logo are registered trademarks of the Wi-Fi Alliance. "Wi-Fi CERTIFIED", "Wi-Fi ZONE", "Wi-Fi Alli-
ance", their respective logos and "Wi-Fi Protected Access" are trademarks of the Wi-Fi Alliance.
UPnP™ is a certification mark of the UPnP™ Implementers Corporation.
Microsoft®, MS-DOS®, Windows® and Windows NT® are either registered trademarks or trademarks of Microsoft Corpo-
ration in the United States and/or other countries.
Apple® and Mac OS® are registered trademarks of Apple Computer, Incorporated, registered in the United States and
other countries.
UNIX® is a registered trademark of UNIX System Laboratories, Incorporated.
Adobe®, the Adobe logo, Acrobat and Acrobat Reader are trademarks or registered trademarks of Adobe Systems, Incor-
porated, registered in the United States and/or other countries.
Netscape® and Netscape Navigator® are registered trademarks of Netscape Communications Corporation.
Other brands and product names may be trademarks or registered trademarks of their respective holders.
Document Information
Status: v1.0 (23/5/06)
Reference: E-DOC-CTC-20051017-0167
Short Title: Internet Connection Configuration Guide ST R5.4 and higher

Contents
E-DOC-CTC-20051017-0167 v1.0 i
Contents
About this SpeedTouch™ Internet Connection
Configuration Guide .................................................... 1
1 Introduction ................................................................... 3
1.1 Definitions and terminologies........................................................ 4
1.1.1 Local End / Remote End .................................................................................................. 4
1.1.2 Virtual Channels............................................................................................................... 4
1.1.3 Connection Services ........................................................................................................5
1.1.4 Packet Services ................................................................................................................ 5
1.2 The SpeedTouch™ Interfaces......................................................... 6
2 Bridged Ethernet ......................................................... 11
2.1 SpeedTouch™ Bridged Ethernet Configuration ........................... 13
3 Routed Ethernet .......................................................... 17
3.1 SpeedTouch™ Routed Ethernet Configuration ............................ 19
4 Bridged PPPoE............................................................. 25
4.1 SpeedTouch™ Bridged PPPoE Configuration............................... 27
4.2 Connect to the Internet via a Host PPPoE Dial-In Client ............. 32
4.2.1 Using the Windows XP Embedded PPPoE Client ....................................................... 33
4.2.2 Using the Mac OS X Dial-In Client................................................................................ 36

Contents
E-DOC-CTC-20051017-0167 v1.0
ii
5 Routed PPPoE.............................................................. 37
5.1 SpeedTouch™ Routed PPPoE Configuration................................ 39
5.1.1 Routed PPPoE with NAPT ............................................................................................. 41
5.1.2 Routed PPPoE with DHCP Spoofing............................................................................. 44
6 PPPoE Relay................................................................. 49
6.1 SpeedTouch™ PPPoE Relay Configuration .................................. 51
6.1.1 General Configuration ................................................................................................... 52
6.1.2 Configuration making use of ILMI (autoPVC) .............................................................. 57
7 Routed PPPoA ............................................................. 59
7.1 SpeedTouch™ Routed PPPoA Configuration ............................... 61
7.1.1 Configuration Procedure for Routed PPPoA with NAPT ............................................63
7.1.2 Configuration Procedure for Routed PPPoA with DHCP spoofing ............................ 66
8 PPTP-to-PPPoA relaying ............................................. 69
8.1 Configuration Procedure for Relayed PPPoA .............................. 71
8.1.1 Using the Windows XP Embedded PPP Client............................................................ 72
9 Routed IPoA................................................................. 75
9.1 SpeedTouch™ Routed IP over ATM Configuration ...................... 77
9.1.1 Routed IPoA with NAPT ................................................................................................ 78

Contents
E-DOC-CTC-20051017-0167 v1.0 iii
10 Routed PPPoI ............................................................... 81
10.1 How to Configure the ISDN Modem............................................. 83
10.2 ISDN Backup ................................................................................ 84
10.2.1 How to Configure the ISDN Dial-In Connection ..........................................................85
10.2.2 How to Configure the PPP Connection ........................................................................ 88
10.3 ISDN Callback .............................................................................. 91
10.3.1 How to Configure the ISDN Dial-In Connection ..........................................................92
10.3.2 How to Configure the PPP Connection ........................................................................ 95
10.4 ISDN Remote CAPI ....................................................................... 98

Contents
E-DOC-CTC-20051017-0167 v1.0
iv

E-DOC-CTC-20051017-0167 v1.0 1
About this SpeedTouch™ Internet Connection
Configuration Guide
Used Symbols The following symbols are used in this configuration Guide:
TypographicalConventions Following typographical convention is used throughout this manual:
Sample text indicates a hyperlink to a Web site.
Example: For more information, visit us at www.speedtouch.com.
Sample text indicates an internal cross-reference.
Example: If you want to know more about guide, see “1 Introduction” on
page 7”.
Sample text indicates an important content-related word.
Example: To enter the network, you must authenticate yourself.
Sample text indicates a GUI element (commands on menus and buttons,
dialog box elements, file names, paths and folders).
Example: On the File menu, click Open to open a file.
Sample text indicates a CLI command to be input after the CLI prompt.
Example: To obtain a list of all available command groups, type help at the
top level.
Sample text indicates input in the CLI interface.
Sample text indicates comment explaining output in the CLI interface.
Example:
Documentation and
software updates
THOMSON continuously develops new solutions, but is also committed to improve
its existing products.
For suggestions regarding this document, please contact
documentation.spe[email protected].
For more information on THOMSON's latest technological innovations, documents
and software releases, visit us at:
www.speedtouch.com
A note provides additional information about a topic.
A tip provides an alternative method or shortcut to perform an action.
!A caution warns you about potential problems or specific precautions that
need to be taken.
=> language list
CODE LANGUAGE VERSION FILENAME
en* english 4.2.0.1 <system> Only one language is available
Output
Input
Comments

E-DOC-CTC-20051017-0167 v1.0
2

Chapter 1
Introduction
E-DOC-CTC-20051017-0167 v1.0 3
1Introduction
Scope This document provides information on how to configure the SpeedTouch™ when
trying to set up end-to-end connectivity with a Broadband Remote Access Server
(BRAS). The aim of this configuration guide is to provide the essential information,
so that non DSL experts can make the more advanced SpeedTouch™
configurations.
Applicability This configuration guide is applicable to SpeedTouch™ Release R5.4 and higher.
History Since the first introduction of the SpeedTouch™ DSL modems (the A1000 ADSL
NT), the way data is passed back and forth between a computer or local LAN and
the Internet Service Provider (ISP) broadband access machines has changed
considerably. Starting from a plug and play IEEE 802.1D Transparent Bridge, DSL
devices rapidly evolved to DSL Home gateways and IP routers with NAT/NAPT
support for sharing a single public IP address with embedded firewalling techniques
as a countermeasure to attacks from the Internet.
Overview This chapter starts with some definitions and terminologies and then briefly
describes the different interfaces of the SpeedTouch™ and how to configure them.

Chapter 1
Introduction
E-DOC-CTC-20051017-0167 v1.0
4
1.1 Definitions and terminologies
1.1.1 Local End / Remote End
Local ends
Remote end
Irrespective whether a conversation happens between people or machines, there
are at least two parties involved. In this document the SpeedTouch™ is referred to
as the Local end, and the Broadband Remote Access Server (BRAS) of the ISP the
Remote end.
The configuration at the remote end is fully controlled by the ISP.
The local end must be a mirror image of the remote end, but a few items can be
selected autonomously by the subscriber.
1.1.2 Virtual Channels
ATM The popular term “DSL Services” is actually a misnomer because it refers not only
to the raw “DSL Technology” but also to virtual channels, encapsulation and
formatting of packets.
Indeed, on the one hand, DSL refers to advanced modulation/demodulation
techniques, applied to the copper wire between a subscribers’ home and the
telephone service provider’s central office. The net result of this technology is a
boost in bandwidth from a few tens of kilobytes per second to multiple megabits
per second.
On the other hand, as the distance covered by DSL is limited to only a few
kilometers, a wide area communication infrastructure is required to transport data
to ISPs and corporate data centres. For this purpose, Asynchronous Transfer Mode
(ATM) has been selected.
Virtual channels A key aspect of ATM is its concept of Virtual Channels. For DSL service, an ATM
virtual channel is established between the DSL modem and the central office Digital
Subscriber Line Access Multiplexer (DSLAM) of the telephone service provider.
ATM cells Another key aspect is the concept of ATM cells. Prior to DSL modulation, the
SpeedTouch™ must encapsulate user data in ATM cells. Modulated ATM cells
flowing along the virtual channel, are recovered in the central office of the
telephone service provider and switched to the ISP or corporate data centre of the
subscriber.
VPI/VCI Each ATM cell carries two labels as part of its header:
Virtual Path Identifier (VPI)
Virtual Channel Identifier (VCI)
As a consequence, multiple virtual channels can reside on a single DSL line.
The SpeedTouch™ products support multiple combinations of Virtual Path
Identifiers (VPI) and Virtual Channel Identifiers (VCI), thus supporting multiple
Virtual Channels.
Commonly VPI is called virtual path and VCI virtual channel.

Chapter 1
Introduction
E-DOC-CTC-20051017-0167 v1.0 5
1.1.3 Connection Services
Concept As part of the DSL service provisioning, the ISP configures a connection service at
the remote end of each virtual channel.
Connectivity to the Internet or a company’s Intranet is by far the most important
service offered by an ISP. For practical realization though, some adjustments must
be made. For example the BRAS enforces the use of a certain frame format on the
virtual channel. Another important aspect is how the connection is bootstrapped
(always-on / dial-up) and how IP settings like IP address, default gateway and DNS
servers are configured at the local end.
All these items can be collectively referred to as connection service and consist of:
a connection service name
the virtual channel identifier
the connection service type
the ATM encapsulation type
Whether a connection is always-on or dial-up and the way IP configuration is
accomplished in the remote end, is mostly implied in the connection service name.
For example PPPoE is native dial-up and IP configuration happens via PPP-IPCP.
Each ISP has its own policy for assigning connection services to virtual channel(s).
1.1.4 Packet Services
Function The main function of a packet service is to forward frames or packets between the
DSL line and the SpeedTouch™ LAN ports and vice versa. Therefore the connection
service offered on the DSL line must be “attached” to the appropriate packet
service in the SpeedTouch™.
Concept The concept of packet services refers to:
The type of packet or frame that is expected on the virtual channel
The type of filtering/forwarding function that handles the frame/packet at the
local end
The pre- and post-processing steps that are applied on a per frame/packet
basis
Whether a connection is “dial-in” or is inherently “always-on”
Whether frame/packet processing is done completely in the SpeedTouch™, or
partially in the SpeedTouch™ and partially in the attached PCs
Whether the connection can be shared or not
The way parameters like IP addresses are negotiated, etc.

Chapter 1
Introduction
E-DOC-CTC-20051017-0167 v1.0
6
1.2 The SpeedTouch™ Interfaces
Types of interfaces In the SpeedTouch™ release R5.4 and higher, there are five different types of
interfaces:
Physical interfaces:
Interfaces that can be connected to other peripherals from outside the box:
Physical Ethernet interface
USB interface (USB 1.1 slave)
IEEE 802.11b/g WiFi Access Point
ISDN modem interface
DSL interface
ATM interfaces:
Interfaces that are created on top of an ATM address, or in case of an ATM
bundle, on top of another ATM interface.
Ethernet interfaces:
Interfaces that are created on top of a physical interface, bridge, ATM
interface, or in case of VLAN, on top of another Ethernet interface.
IP interfaces:
Interfaces that are created on top of an Ethernet interface, an ATM interface or
exist on top of a PPP interface.
PPP interfaces:
Interfaces that are created on top of:
an Ethernet interface
an ATM interface
the ISDN interface
the PPPoE Relay

Chapter 1
Introduction
E-DOC-CTC-20051017-0167 v1.0 7
Schematic overview The figure below shows the SpeedTouch™ interface architecture.
Configuration procedure The configuration of an interface always exists of following three steps:
1Creating the interface.
2Configuring the interface.
3Attaching the interface to its lower layer interface.
Every packet service consists of the configuration of different interfaces on top of
each other.
In this document interfaces are configured by means of:
The Command Line Interface (CLI)
The Setup Wizard
PPP
PPPoA
IPoA
iARP
PPPoEIPoE /
IPoEoA
ARP
PPPoE RELAY Multilink
PPP
EthoA
IP Interface(s)
IP Forwarding
Physical Ports
(Eth, USB, WLAN, BT...)
ATM VP/VC
(Over DSL / ATM-F)
ISDN
LoopBack
Ethernet Interface(s)
ATM Interface(s)
Bridge
VLAN
ATM Bundle

Chapter 1
Introduction
E-DOC-CTC-20051017-0167 v1.0
8
Accessing the command
line interface
Users can access the Command Line Interface via:
The SpeedTouch™ CLI web pages:
This requires that TCP/IP connectivity exists between the SpeedTouch™ and
the host from which the web browser is opened.
A Telnet session:
This requires that TCP/IP connectivity exists between the SpeedTouch™ and
the host from which the Telnet session is opened.
The serial 'Console' interface.
This requires a terminal emulation program.
Before you start By default the SpeedTouch™ has the following interfaces already configured:
Proceed as follows to start without the default configuration:
With the SpeedTouch™ in this state you should be able to configure every packet
service as described.
=>interface list
Name Type State Use UL Interfaces
ethif1 physical connected 1 ethport1
ethif2 physical connected 1 ethport2
ethif3 physical connected 1 ethport3
ethif4 physical connected 1 ethport4
RELAY eth connected 1 Internet_ppp
bridge eth connected 2 RELAY, lan1
OBC bridge connected 1 bridge
ethport1 bridge connected 1 bridge
atm_0_35 atm recovering 1 PPPoE_0_35
atm_8_35 atm recovering 1 PPPoE_8_35
ethport2 bridge connected 1 bridge
ethport3 bridge connected 1 bridge
ethport4 bridge connected 1 bridge
PPPoE_0_35 eth connected 1 RELAY
PPPoE_8_35 eth connected 1 RELAY
Internet_ppp ppp not-connected 1 Internet
Internet *ip not-connected 0
lan1 ip connected 0
=>:ppp relay flush
=>:eth flush
=>:atm flush
=>:ppp flush
=>:atm phonebook flush
=>:saveall
=>

Chapter 1
Introduction
E-DOC-CTC-20051017-0167 v1.0 9
Document overview In the next chapters the configuration of the following packets services will be
explained:
Bridged Ethernet
Routed Ethernet
Bridged PPPoE
Routed PPPoE
PPPoE Relay
Routed PPPoA
Routed PPPoI
Routed IPoA.
Templates For your convenience, it also possible to configure these packet services using the
SpeedTouch™ templates.

Chapter 1
Introduction
E-DOC-CTC-20051017-0167 v1.0
10

Chapter 2
Bridged Ethernet
E-DOC-CTC-20051017-0167 v1.0 11
2 Bridged Ethernet
Introduction Bridged Ethernet is by far the most simple packet service supported by the
SpeedTouch™. The Bridging entity of the Digital Subscriber Line (DSL) modem
joins the local Ethernet segment(s) connected to the local hosts, and the “virtual”
Ethernet segment on the DSL line into one common Ethernet network. In this way it
is as if the hosts are directly connected to the Service Provider (SP) access machine
(remark the term “Transparent” Bridging).
Features Bridged Ethernet has the following features:
Platform and Operating System independent
Simple to configure and easy to use
Complete layer 3 and upwards protocol transparency
Concurrent access to multiple remote destinations
Bridged Ethernet vs.
connection service
The Bridged Ethernet Packet Service relies on the AAL5/RFC2684/Bridged
Connection Service to achieve end-to-end connectivity.
For the SpeedTouch™, this amounts to using the ETHoA (Ethernet over ATM)
Connection Service type. This connection service type implies the encapsulation of
Ethernet frames (often referred to as IEEE802.3, MAC frames or Bridging frames) in
AAL5/ATM.
All SpeedTouch™ products are compliant with RFC2684 “Multi-protocol
Encapsulation over ATM Adaptation Layer 5” and support both the LLC/SNAP and
VC-MUX encapsulation method for Bridged Ethernet V2.0/IEEE802.3 Protocol Data
Units (PDUs). The default encapsulation method is set to LLC/SNAP.
Bridged Ethernet vs.
protocol occupancy
Bridged Ethernet operates below the network layer and is transparent to any Layer 3
protocol. It does not impose any specific requirements to the local node’s protocol
layers. Make sure that these protocol layers are properly installed and supported by
the remote node.
In most cases (and in all the examples) Transmission Control Protocol/Internet
Protocol (TCP/IP) will be used.
DSLAM
SpeedTouch
operating as
Transparent Bridge
PC with fixed
Public IP address,
received by DHCP
or statically
configured
Virtual Channel with:
ATM Encapsulation Type: LLC/SNAP
Connection Service Name: Virtual Ethernet
Connection Service Type: ETHoA
BRAS
Internet

Chapter 2
Bridged Ethernet
E-DOC-CTC-20051017-0167 v1.0
12
Local Network TCP/IP
configuration
Two TCP/IP scenarios are used for Bridged Ethernet implementations:
1The Service Provider requires the use of DHCP for local node(s).
Local DHCP clients receive their IP configuration from a remote DHCP server
across the DSL line.
2The Service Provider provides static public IP addresses to be configured on
the local node(s) to globally uniquely identify the local end.
In both cases, alternatively, an additional private IP address can be manually
configured (per local node) to allow Local Networking communication.
Using Bridged Ethernet Using Bridged Ethernet is rather straightforward:
1Make sure that the SpeedTouch™ is turned on first.
2Turn on the computer(s).
3Make sure that the Ethernet interface of the host computer is properly
configured.
4Start a web browser.
You are now on the Internet or you have Corporate Intranet access.
Protocol stack The figure below shows the Bridged Ethernet protocol stack.
If the first scenario is used, the SpeedTouch™ DHCP server must be
disabled to avoid two DHCP servers (i.e. the SpeedTouch™ DHCP server
and the remote DHCP server) being active towards the local node(s) at the
same time.
Although the access method of the bridge is Always–On, the remote
organization might ask for a user name and password.
ip
mac
eth
adsl
CPE DSLAMPC Service
Gateway
RFC1483b
AAL5/ATM
PHY
IP
mac