SPEED TOUCH
User Guide
1. About this Guide
1.1. Introduction
This Speed Touch User Guide provides you with both basic configuration information and more advanced networking concepts.
1.2. Safety Instructions
Follow all warnings and instructions marked on the product.
Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.
Do not use this product near water, for example, near a bathtub, wash bowl, kitchen sink, laundry tub, in a wet basement or near a swimming pool.
This product should be operated only from the type of power source indicated on the marking labels. If you are not sure of the type of power supply to your home, consult your product dealer or local power company.
Do not allow anything to rest on the power cord. Do not locate this product where the cord will be subject to persons walking on it.
Do not overload wall (mains) outlets and extension cords as this can result in the risk of fire or electric shock.
To reduce the risk of electric shock, do not disassemble this product, but take it to a qualified serviceman when service or repair work is required. Opening or removing covers may expose you to dangerous voltages or other risks. Incorrect reassembly can cause electric shock when the appliance is subsequently used.
Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions:
Avoid using a modem/telephone (other than a cordless type) during an electrical storm. There may be a remote risk of electric shock from lightning.
Do not use the telephone to report a gas leak in the vicinity of the leak.
SAVE THESE INSTRUCTIONS!
2. Preparing to Install
2.1. Before You Start
Only qualified service personnel may access the interior of the unit. None of its parts are user-replaceable; therefore, no reason exists for user access.
The Speed Touch equipment is not intended to be connected to an IT-type power system.
The Speed Touch equipment is intended for in-house stationary use, desktop or wall-mounted.
The Speed Touch equipment must not be mounted in a location exposed to solar and/or heat radiation.
The Speed Touch equipment must not be exposed to heat trap conditions and must not be subjected to water or condensation.
If normal phone service is required on the same line, a splitter must be installed.
Installation of the cable between the Speed Touch modem and the splitter must be carried out by qualified service personnel.
The mains socket outlet must be near the equipment and easily accessible.
The Speed Touch equipment must be installed in a Pollution Degree 2 environment.
Due to the special characteristics of the output of the class II AC adaptor, use only the models or equivalents listed in the variants cross-reference table in Appendix A.
2.2. Delivery Check
Before installing the Speed Touch, you need to visually inspect it for damage that might have occurred during shipment. Make sure the box package contains all of the components listed below:
In case your Speed Touch or any other item listed above is damaged or missing, contact the organization you obtained the Speed Touch from and ask for further instructions.
| Note | (*) For part number and physical differences, see Cross-Reference table in Appendix A. This appendix describes all possible versions. |
2.3. System Requirements
The Speed Touch requires the following hardware and system configuration :
Generic
Additional User IDs and Passwords might be required for access to specific servers.
Ethernet
ATMF-25
Operating System
Local Speed Touch Configuration
2.4. Front Panel
2.5. LEDs
Following table explains the functions of the LEDs on the Front Panel:
| Indicator | Meaning | ||
|---|---|---|---|
| Name | Color | State | |
| LAN | green | flashing | data is flowing from/to the active CPE interface (Ethernet/ATMF-25) |
| off | no activity on the active LAN interface | ||
| Line TX | green | flashing | ATM cells are being send (ADSL Interface) |
| off | no transmit activity | ||
| Line RX | green | flashing | ATM cells are being received (ADSL Interface) |
| off | no receive activity | ||
| Sync | green | on | ADSL line synchronization achieved |
| flashing | during initialization of Speed Touch Pro | ||
| Power/Alarm | green | on | power on, normal operation |
| red | flashing | power on, selftest pending | |
| on | power on, selftest failed | ||
2.6. Rear Panel
| Note | The rear panel layout may differ depending on the variant you purchased: Ethernet + ATMF-25 or Ethernet only. See section 3.3: "Ethernet and ATMF-25" for more information. |
3. Speed Touch Navigation
3.1. Introduction
Congratulations for purchasing this Speed Touch family product! It contains the Alcatel state-of-the-art Asymmetric Digital Subscriber Line (ADSL) technology and a whole range of advanced features.
In the topics below we will highlight some key features of the Speed Touch in order to help you find the best solution for your networking needs.
If you are interested in full explanations of these features, see chapter 12 for more information.
3.2. Home and Pro Version
There are two versions of the Speed Touch: the Speed Touch Home and the Speed Touch Pro. On the outside, both products look alike. The difference can be found in the protocols supported on the Ethernet interface:
3.3. Ethernet and ATMF-25
The Home and Pro version exist in two variants: Ethernet only and Ethernet + ATMF-25. If you take a look at the rear panel you can determine which version was delivered (see figures 4 and 5).
Due to its inherent support for networking, Ethernet will be your natural choice for creating a small LAN. See chapter 4 for hardware setup and chapter 5 for application/service setup.
The ATMF-25 provides you with excellent protocol transparency. However it is your ATMF-25 PC-NIC that will actually determine networking possibilities. See chapter 4 for hardware setup and chapter 6 for application/service setup.
3.4. Internet and Corporate Access vs. LAN-to-LAN Interconnection
You might want to surf the internet at high speeds or suppose you want to create your own private WAN/LAN, the Speed Touch has a solution for you.
Indeed, the Speed Touch supports multiple networking options allowing you to achieve communication in various environments. However, due to specific properties one solution might better fit a specific application than another.
Independent of your application, the protocols supported at both ends of the connection must be a mirror image of each other for successful communication.
For Internet or Corporate access these are the solutions that are most appropriate:
In this case, your Internet Service provider (ISP) or Corporate Network Administrator will most likely determine which networking solution to use.
For LAN-to-LAN interconnection the solutions below that are probably the most appropriate:
In this scenario you determine the end-to-end architecture yourself.
| Note | Only typical networking solutions are presented in this manual. However this may not prevent you from experimenting with the various configurations and settings that might yield an optimal solution. You might also try a combination of the presented solutions. |
3.5. Protocol Family
All given examples use the Transmission Control Protocol (TCP) /Internet Protocol (IP) protocol suite because it is widely available. However the Speed Touch can cope with other protocols too, as it is a true multiprotocol device.
Using TCP/IP implies in most cases configuring IP addresses either on your PC(s), on your Speed Touch or on both. Please refer to Appendix E for instructions on how to configure one on your machine.
3.6. The Speed Touch as a Toolbox
If you read this manual you will discover the Speed Touch is actually a toolbox containing various building blocks. These are designed to be combined in a flexible manner allowing you to create solutions to specific networking needs.
3.7. General Concepts
The Speed Touch Pro provides high-speed connections to the Internet and Corporate Intranets using Asynchronous Transfer Mode (ATM) and ADSL on a standard telephone line.
ADSL
ADSL is state-of-the-art modem technology that unlocks the potential bandwidth of the widely available public telephone network. The Alcatel ADSL service has been designed to coexist with the standard telephone service. More importantly your telephone lifeline service will not be affected by any failure of the Speed Touch.
ATM
Whether you are using Voiceband modems, ISDN modems or the ADSL modem, all rely upon a Wide Area communication infrastructure. In the Alcatel ADSL solution, ATM was selected for this purpose. ATM is a connection-oriented packet switching technology using fixed-size packets, called cells. These cells can carry information to and from your LAN over large distances.
Speed Touch
The Speed Touch Pro connects your computer and/or network to the Internet and/or Corporate Network. You can connect your computer and/or network to the Speed Touch by means of the industry standard ATM-Forum 25.6 Mbps (ATMF) and 10Base-T Ethernet interfaces. Both ATMF-25 and Ethernet can exploit the high bit-rates available through the ADSL line.
Figure 6 shows the generic network infrastructure. Residential or small office ADSL users have access to their corporate headquarters and/or their ISP.
4. Connecting the Speed Touch
4.1. Cables and Connectors
Cables
Following cables are provided with your Speed Touch:
For information on how to identify the ADSL, LAN or serial cable, please turn to Appendix B: "Hardware Reference".
Connectors
To connect the Speed Touch, following interfaces will be used:
For the location of these interfaces, see section 2.6: "Rear Panel".
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Using other LAN cables You can use other LAN cables than the one provided in the box. However make sure it has the right layout:
In the Speed Touch box a straight-through LAN cable is provided. See Appendix B: "Hardware Reference" for cabling layouts. |
4.2. The ADSL Line
As soon as your ADSL provider enables the ADSL service on your telephone line, two "channels" exists on the single twisted-pair:
In order for the ADSL channel not to disturb the phone channel and vice versa, splitters or filters must be installed first. A few configurations are possible:
Irrespective of splitter location or type, the installation must be performed by qualified service personnel of your ADSL provider.
4.3. Connecting the ADSL Line Interface
Depending on your local ADSL configuration and the wiring inside your house, the connection between the Speed Touch and the ADSL line will differ.
For an external splitter it can be as simple as using the ADSL cable to connect the ADSL line interface to the wall socket in which the ADSL line is terminated.
However, ask your ADSL provider for advice on:
4.4. Ethernet Interface
The Ethernet port available on the Speed Touch is a 10Base-T interface of type MDI-X on which you can connect either a single PC or a small network.
4.4.1. Single PC Configuration
Use the LAN cable that is included in your Speed Touch box to connect the Ethernet interface of your Speed Touch to the Ethernet port on your PC.
Assuming the Speed Touch and PC are properly powered on, the Link Integrity LEDs on both your PC and Speed Touch should be continuously green. This indicates that the wiring between the Speed Touch and PC is correct. If not check the cable layout according to "Appendix B: Hardware Reference".
| Note | Your PC might have a build-in Ethernet port, otherwise you must first install an Ethernet PC NIC. |
4.4.2. Multiple PC Configuration
The most convenient way to connect a LAN with multiple users to your Speed Touch is by using an Ethernet HUB.
Use a crossover LAN cable to connect the Ethernet interface of your Speed Touch to one of the ports of your HUB.
Use straight-through LAN cables to make the connections between the HUB ports and the PCs/workstations.
Assuming the Speed Touch and HUB are properly powered on, the Link Integrity LEDs on both your HUB and Speed Touch should be continuously green. This indicates that the wiring between the Speed Touch and HUB is correct. If not check the cable layout according to "Appendix B: Hardware Reference".
4.4.3. Home Gateway Concept
4.5. ATMF-25 Interface
The ATMF port available on the Speed Touch is an ATMF-25 interface. The interconnection between the ATM Forum equipment and the Speed Touch must most likely be made with a straight-through LAN cable. This is because the ATMF-25 interface of the Speed Touch is of type ATM Network Equipment and most ATMF-25 PC-NIC cards are of type ATM End Equipment.
Connect the PC with an ATM Forum PC-NIC directly to the ATMF interface of the Speed Touch using the LAN cable that is included in the box package.
To connect multiple PCs to the ATMF interface, an ATM switch is needed. Note that for the connection between the Speed Touch and the ATM switch a crossover cable will have to be used since both ATMF-25 interfaces are of the type Network Equipment.
4.6. ATMF-25 and Ethernet Interface
The Speed Touch variant equipped with an Ethernet and ATMF-25 interface is designed for concurrent use of both interfaces.
As a consequence, the configurations described in paragraph 4.4 and 4.5 remain equally valid when used at the same time. There is no performance penalty on this simultaneous use except for sharing the upstream and downstream ADSL bandwidth.
4.7. Power Supply
The Speed Touch is delivered with a modular external power supply adapter of 120 VAC/60Hz (US standard) or 230 VAC/50Hz (European standard) converting to:
Proceed as follows to connect the power supply adapter :
Examine the visual indicators on top of the Speed Touch (see "2.4 Front Panel"). The visual indicator marked "Power/Alarm" initially flashes red. Once the ADSL line is connected and the Speed Touch is properly synchronized, this indicator shows continuous green. At this point, the Speed Touch is ready for data transport.
See Appendix "Appendix B: Hardware Reference" for the connector layout and output specifications.
5. Configuration Guide
5.1. Introduction
The Speed Touch offers you different packet services from which you can choose:
The criteria below can be of help to select the most appropriate packet service for your application:
| Interface | Packet Service | Application Protocol | See Section | Model |
|---|---|---|---|---|
| 10Base-T Ethernet | IEEE 802.1D Bridging | Multiprotocol | 5.2 | Pro & Home |
| PPP-to-PPTP Relay | TCP/IP, IPX/SPX, NETBEUI | 5.3 | Pro & Home | |
| PPP & IP Routing | TCP/IP Protocol suite | 5.4 | Pro only | |
| RFC1577 CIP & IP Routing | TCP/IP Protocol suite | 5.4.2 | Pro only | |
| ATMF-25 | The supported data services depend on the functionality is offered by the drivers included with the ATMF-25 PC-NIC you purchased. | Pro & Home | ||
5.2. Bridging
You might select the Speed Touch Bridging packet service because of its protocol transparency and its inherent simplicity for configuration.
5.2.1. Features
5.2.2. Configuring Bridging
Remote Organization
The remote Access Server must support RFC1483 Bridged PDU Encapsulation on ATM.
Additionally the Remote Organization must provide you with:
| Note | Possibly the remote organization will distribute these parameters automatically e.g., via Dynamic Host configuration Protocol (DHCP) . If so, it will require you to configure your PC(s) to support this automatic procedure. Appendix E: "Configuring the IP address of your PC" for more information. |
In case you want connectivity to multiple remote organizations, additional sets of these parameters need to be supplied.
Speed Touch
The Speed Touch Home comes with four preconfigured bridge ports. However for the Speed Touch Home only one port is put in forwarding state (to save on ADSL bandwidth) and none for the Speed Touch Pro. In case you want simultaneous access to multiple remote destinations, please put other ports in forwarding mode as well.
PC
Bridging puts no specific requirements on your PCs networking protocol layers i.e. it operates seamless with TCP/IP, IPX/SPX and Appletalk to name a few. Just make sure these are properly installed and configured. Your network administrator or ISP might provide you with the necessary instructions.
If the TCP/IP protocol is used, your ISP or Corporate network administrator will assign you an IP address or instruct you to enable DHCP to acquire an IP address automatically. See Appendix E: "Configuring the IP address of your PC" for more information.
Sample Configuration
| Note | The Speed Touch inherently supports multiple protocols. However some operators might embed restrictions into the bridge. In this way only traffic that passes through the bridge filter is allowed on the ADSL line. Please contact your ADSL service organization for more. |
5.2.3. Using Bridging
From this point on, using bridging is rather straight-forward. Just power on both your Speed Touch and your PC, start your browser and you are on the Internet.
This form of remote network access is what is sometimes called "Always-on": no connection must be established prior to connectivity.
However, the remote organization might present you with a welcome screen on which you can supply an user ID and password before you are granted access to certain servers or the Internet.
5.3. PPP-to-PPTP Relay (PPP/PPTP)
You might select the PPP/PPTP packet service for your applications because it provides complete TCP/IP protocol transparency. Even so the remote organizations might require you to identify and authenticate yourself prior to providing access to the Internet and/or allowing you to use their internal resources.
5.3.1. Features
PPP-to-PPTP Relay has the following features:
5.3.2. Configuring PPP-to-PPTP Relaying
Remote Organization
The remote Access Server must support RFC2364 PPP Encapsulation on ATM, at the remote end of the virtual channel.
Additionally the Remote Organization must provide you with:
In case you want connectivity to multiple remote organizations, additional sets of these parameters need to be supplied.
Speed Touch
The Speed Touch comes with 4 preconfigured PPP/PPTP connections.
PC
Your PC must support the Point-to-Point Protocol (PPP) and Point-to-Point Tunneling Protocol (PPTP) protocols. E.g. all Microsoft platforms (Windows9x, Windows NT Client and Windows NT Server) support PPP and PPTP.
Following procedure describes the configuration for a Windows98 platform. The procedures for Windows95 and Windows NT are described in Appendix C: "Configuring and Using Tunneling (PPP/PPTP) on Windows95 and Windows NT".
To configure a new connection to your headquarters or an ISP on a Windows98 platform, proceed as follows:
Press the
button.
In the first input field, type a name or alias that refers to the organization you will connect to. This name will appear below the newly created icon at the end of this procedure.
For PPTP tunneling, select the 'Microsoft VPN Adapter' in the device selection box.
Press the
button.
Enter the 'hostname' or 'IP address' of the Virtual Private Network (VPN) Server. In this case the VPN Server is your Speed Touch. The default IP address for the Speed Touch is 10.0.0.138
Press the
button.
| Note | VPN Server is another name for PPTP server. |
Press the
button.
A new icon with the name of the connection you just created will be added to your Dial-Up Networking folder (see Figure 16). You will use this icon to subsequently establish the connection.
Select the 'Server Types' tab.
TCP/IP
PPP is carried in ATM cells over the ADSL line. However, on the Ethernet segments between the Speed Touch and your PC(s), IP tunnels are used instead. Prior to establishing IP tunnels, IP addresses must properly be configured in both machines initiating and terminating the tunnel.
Therefore, configure an IP address in the Speed Touch - see chapter 10: "Speed Touch Local Configuration" - and in your PC, see Appendix E: "Configuring the IP address of your PC".
Advanced Configuration
The Speed Touch allows tunneling from behind a router. This requires a few special settings in both the Speed Touch and your PCs/Workstations.
You must specify the default route for the Speed Touch via the IP Configuration page. In this example, the IP address of the default router would be 10.0.0.1, which is the IP address of the Ethernet interface of the CPE router connected to the Speed Touch.
For each PC you must add a route to the internal routing table. This route must point to the Speed Touch. For PCs equipped with the Windows line of operating systems do the following:
route add <Destination IPaddress> <Gateway IPaddress>
In the example: route add 10.0.0.138 172.16.0.1
To verify IP connectivity, you can ping the Speed Touch.If the Speed Touch responds, you can then set up tunnels.
5.3.3. Using PPP-to-PPTP Relaying
Again, this procedure describes the Windows98 platform only.
5.3.3.1. Setting Up a PPP/PPTP Connection
After having configured the connection, proceed as follows to establish the PPP/PPTP connection:
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Creating Multiple Icons If you intend to use this connection often, it may be useful to create a shortcut to it on your desktop. |
Fill in the 'User name', 'Password' and 'IP address of the VPN server'.
Press the
button.
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Saving your password User name and password are unique for a specific remote destination. They must be filled out each time you want to set up a connection. Therefore it is useful to create multiple icons, one to each remote destination, since the user name and password are saved with the icon once filled out. |
This window informs you of the status of the connection process. Once the connection is established, an icon representing the connection appears on your desktop. You are now connected with the destination specified in the connection icon (see Figure 19).
5.3.3.2. Disconnecting a PPTP Connection
To disconnect a PPTP connection, proceed as follows :
button.The network connection to your ISP no longer exists.
5.4. IP Routing
Next to Bridging and PPP-to-PPTP relaying the Speed Touch Pro offers a third packet forwarding mode: IP Routing. This mode provides Wide Area connectivity, yet prevents local traffic from being forwarded off premisses.
IP Routing can be used in combination with both the PPP protocol suite and Classical IP.
5.4.1. IP Routing & PPP
5.4.1.1. Features
5.4.1.2. Configuring IP Routing & PPP
Remote Organization
The remote Access Server must support RFC2364 PPP Encapsulation on ATM.
Additionally Remote Organization must you provide you with:
In case you want connectivity to multiple remote organizations, additional sets of these parameters need to be supplied.
Speed Touch
The Speed Touch comes with 4 preconfigured connections for IP Routing & PPP.
PC
In order to use the IP Routing & PPP mode of the Speed Touch Pro, your PC(s) must be equipped with a TCP/IP protocol suite. Optionally a Browser must be installed if you want to change the Speed Touch's default IP Routing and PPP settings.
TCP/IP
You must configure the TCP/IP protocol on all PCs that will use the routed PPP connection. Please refer to section 7.4: "Routing and IP addresses" for more information.
5.4.1.3. Using IP Routing & PPP
Once you have configured a PPP connection to your corporate headquarters or ISP, proceed as follows to establish the connection:
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Saving your password If you want the computer to remember your password, enable the "Save password" check box. The computer will save the password for this connection. |
You have now successfully made a PPP connection.
| Note | Permanent PPP connections you may have configured will not appear in this table. |
5.4.1.4. Disconnecting a PPP Connection
After having established a PPP connection, proceed as follows to disconnect that connection:
The network connection no longer exists.
5.4.2. IP Routing & Classical IP (CIP)
5.4.2.1. Features
5.4.2.2. Configuring IP Routing & CIP
Remote Organization
The remote organization must support RFC 1577 CIP Encapsulation on ATM.
Additionally the Remote Organization must provide you with:
In case you want connectivity to multiple remote organizations, additional sets of these parameters must be supplied.
Speed Touch
The Speed Touch comes with 4 preconfigured Classical IP Phonebook entries.
From this point on the Inverse ATM ARP process of the Speed Touch automatically probes all activated VCs. As soon as the remote CIP clients respond to these Inverse ATM ARP's requests, this can be noticed because the remote IP address will be filled out next to the Phonebook Name for a particular PVC.
When the remote IP addresses are known, automatically the VCs that are part of the same subnet as the CIP client are associated. From this point on you are ready for CIP networking.
PC
Similar to IP Routing & PPP, your PC(s) must be equipped with a TCP/IP protocol suite. Optionally a Browser must be installed if you want to change the Speed Touch's defaults of IP Routing and Classical IP settings.
TCP/IP
You must configure the TCP/IP protocol on all PCs that will use the routed PPP connection.
6. ATMF Configuration
If your terminal equipment is connected to the ATMF interface, ATM service is delivered to the PC. This means ATM cells sourced by the applications on the PC are captured by the ATMF-25 interface and cross-connected or switched to the ADSL line.
Since the Speed Touch only relays ATM cells, the available services (bridging, tunneling, routing,...) depend on your PC-NICs capabilities. Consult the documetation of your PC-NIC for more information on how to configure these sevices.
The virtual channels that are cross-connected in the Speed Touch Pro between the ATMF-25 interface and the ADSL line can have VPI/VCI values as indicated in "Appendix G: Default VPI/VCI Values". Connectivity is only possible if your PC-NIC is sending and receiving ATM cells on one (or more) of these virtual channels.
7. IP Parameters
In the previous chapters, it has become clear that the TCP/IP protocol suite plays a crucial role. Not only for the various networking capabilities of the Speed Touch, but also for its internal configuration.
Because of the flexibility and features of TCP/IP, a wealth of configurations exists. The purpose of this chapter is to highlight a few of the possibilities.
7.1. Choosing an IP Address
These are the possible IP applications:
Independent of your application, IP addresses must always be configured at both ends of the connection.
Prior to configuring an IP address, you must choose a suitable one first. Below the criteria are listed that may influence your choice.
A public IP addresses is required when accessing the Internet. Each host on the Internet must have a unique IP address. If not, IP packets cannot be routed. For end-to-end IP communication your ISP or LAN Administrator will supply you with a public IP address.
Private IP addresses are used for local IP communication e.g. configuring the Speed Touch or dumping files to your local printer. For local configuration we advise to choose addresses from the private ranges. Further on, all examples will be given with 10.x.x.x addresses., sometimes referred to as Net10 addresses.
For more information on public and private IP addresses, see Appendix F: "Public and Private IP addresses".
Both public and private IP addresses can either be manually configured on your machine, or can be distributed automatically.
Again, for end-to-end IP communication your ISP or LAN Administrator will decide on the method. For local configuration you may choose the method yourself.
In the various configurations, multiple IP addresses can be used at the same time, however their scope will differ. The public IP addresses will run end-to-end, private IP addresses will remain local.
7.2. Bridging and IP Addresses
Basically, Bridging does not require any IP address at all: neither in your PC(s), nor in your Speed Touch. However, in case of Internet Access or private IP networking, your PC(s) must be configured for TCP/IP.
If your ISP or Corporate Administrator:
Optionally, a second but private IP address can be manually configured for local IP communication. It depends on your OS whether it supports this combination. E.g. Microsoft supports Logical Multihoming and via the Registry you can add a second IP address.
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Bridging & DHCP When your ISP requires you to enable DHCP in your Speed Touch, in order to distribute IP parameters via the ADSL network, you must disable the DHCP server in the Speed Touch. If not, DHCP requests will end up in the Speed Touch instead of at the ISP. As a consequence, there will be no IP connectivity between your PCs and the ISP! As described in section 7.6.4, set the Speed Touch DHCP mode to "No DHCP". |
7.3. PPP-to-PPTP Relaying and IP Addresses
For PPTP to operate at least local IP addresses must be configured. The use of the IP addresses for local IP connectivity is limited to the local network. Hence you are free to choose any IP address as long as it is compatible with your local network and is unique in that same network.
As the Speed Touch has a preconfigured Net10 address (10.0.0.138) you should configure IP addresses like 10.0.0.1, 10.0.0.2, ... in your PCs.
This address can be configured automatically using DHCP. For more information, see section 7.6: "Automatic IP Configuration: DHCP".
| Note | For PPP/PPTP, a second set of (public) IP addresses which scope is end-to-end, will automatically be negotiated via the PPP protocol. |
Both public and private IP addresses are active simultaneously because of PPTP tunneling. In fact two "nested" IP layers exist: the public IP layer is carried within a private IP layer on the local LAN.
7.4. PPP & IP Routing and IP Addresses
For PPP to operate at least local IP addresses must be configured either manually or automatically. The scope of the IP addresses for local IP connectivity is limited to the local network. Hence you are free to choose any IP address as long it is compatible with your local network and is unique in that same network.
As the Speed Touch has a preconfigured Net10 address (10.0.0.138) you should configure IP addresses like 10.0.0.1, 10.0.0.2, ... in your PCs.
This address can be configured automatically using DHCP. For more information, see section 7.6: "Automatic IP Configuration: DHCP".
At the ADSL side of the router, PPP automatically negotiates an IP address with its remote PPP peer.
Via NAT, both the private and public IP addresses can coexist in the router.
| Note | NAT is enabled by default in the router. |
| Note | If NAT is disabled and you want to use PPP & IP Routing, Public IP addresses must be configured both at the local side ot the Speed Touch and on your PC(s). |
| Note | The PPP functionality of the Speed Touch can be manually configured. For more info see chapter 10: "The Speed Touch Local Configuration". |
7.5. Manual IP Configuration
7.5.1. IP Address
As already mentioned, for local IP connectivity between PC(s) and your Speed Touch to exist:
The Speed Touch comes with a preconfigured Net10 address i.e. 10.0.0.138 .
To change this value, surf to the Speed Touch web pages and click the "Initial Setup" button (see figure 24).
7.5.2. Subnet Mask
7.5.2.1. Bridging and PPP-to-PPTP Relay Mode
In these modes the subnet mask has almost no significance for the Speed Touch, so leave them unchanged. The default subnet mask is 255.0.0.0 .
| Note | The Speed Touch netmask/subnet mask automatically reverts to the default netmask for the specific IP classes: |
| IP Address Class | Default Netmask |
|---|---|
| A | 255.0.0.0 |
| B | 255.255.0.0 |
| C | 255.255.255.0 |
7.5.2.2. IP Routing Mode
When the Speed Touch operates as a router, your PC(s) must configure the IP address of the Speed Touch as their default gateway.
7.5.3. Sample Configurations
7.5.3.1. Single PC
In the drawing below, a simple configuration is given: one PC attached to the Speed Touch. It is most applicable to Bridging and PPP-to-PPTP relay. For IP Routing, the default gateway in the PC must contain the Speed Touch IP address.
7.5.3.2. Small Workgroup
You can setup a local workgroup around the Speed Touch. The drawing below shows a small workgroup centered around the Speed Touch. Notice that the default gateways in the PCs point to the Speed Touch.
| Note | In the drawing above, the IP class B address is used (172.16.x.x.). The drawing is equally valid for 10.x.x.x IP addresses. |
7.6. Automatic IP Configuration: DHCP
DHCP is short for Dynamic Host Configuration Protocol and is part of the TCP/IP protocol suite. It is intended to allow individual hosts to extract their IP parameters from a central server, instead of configuring them all manually.
A computer supporting DHCP, requests amongst others, following IP parameters:
DHCP operates in client/server mode: a computer in its booting stage acts as a DHCP client and emits DHCP requests. These are intercepted by a DHCP server on the same network which responds with DHCP replies.
Depending on the size and complexity of your network a few DHCP configurations can be envisaged:
Central to the DHCP Configuration is the DHCP configuration page of the Speed Touch. This page can be displayed by selecting the DHCP button on the Speed Touch Welcome Page (see figure 27).
7.6.1. Configuring your Speed Touch for Auto DHCP
One of the Speed Touch features is that it can automatically revert from DHCP client to DHCP server. At boot time the Speed Touch probes for 20 seconds to see if a DHCP server is available on the network. If so, it will act as a DHCP client. If no response received within the specified time limit, the Speed Touch becomes a DHCP server.
To setup the Speed Touch for Auto DHCP, proceed as follows:
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Automatic IP addressing Operating systems supporting automatic IP addressing, might initially not establish IP connectivity with the Speed Touch. This because the IP address they assimilated is not within the Speed Touch range. To prevent this problem, please power on your PC(s) after the Speed Touch has come online. Indeed, when the Speed Touch is in Auto DHCP (default), it will first operate as a DHCP client. After some 20s it switches to DHCP server mode, but this might be to late as some clients might already have chosen an automatic IP address. Automatic IP addressing is a feature that allows DHCP clients to assign themselves an IP address. This happens when there is no DHCP server in the network or when the server is temporary down. After having assigned itself an IP address, the DHCP client will issue DHCP requests at regular instances. If the DHCP server is back online, the client will now lease an address from the server. |
7.6.2. Configuring your Speed Touch as a DHCP Client
For advanced networks, the role of DHCP Server might be performed by another IP node on the local LAN than the Speed Touch. Typically such functions are attributed to Home Gateways: computers having more networking capabilities than other hosts on the home LAN.
All local PCs remain configured as DHCP clients but including the Speed Touch.
To setup the Speed Touch as DHCP Client, proceed as follows:
| Note | This configuration is applicable to PPP-to-PPTP Relay and IP Routing. |
7.6.3. Configuring Your Speed Touch as a DHCP Server
For small home LANs it might be interesting to configure all your PCs as DHCP clients and the Speed Touch as DHCP server. In this configuration each time a computer boots, it will obtain its IP configuration from the Speed Touch.
To setup the Speed Touch as DHCP Server, proceed as follows:
| Note | This configuration is applicable to all configurations. However, for bridging it may have side effects (see section 7.2). |
7.6.4. Configuring Your IP Network without DHCP
To setup the Speed Touch without DHCP, proceed as follows:
| Note | This configuration might be necessary for some bridge configurations. |
7.6.5. Default Speed Touch Configuration
The default DHCP configuration of the Speed Touch is Auto DHCP. In this configuration the Speed Touch initially issues DHCP requests for a period of 20 seconds in intervals. If no valid responses are returned form a DHCP server on the local network, the Speed Touch switches to DHCP server mode.
8. DNS
8.1. Introduction
IP addresses are fundamental to the operation of the Internet. They not only uniquely identify an Internet node but also allow IP routers to forward datagrams to their destination. IP addresses are 32-bit numbers. They are ideally suited for computers but are far from usable to humans.
Therefore the Internet engineering community designed a system called DNS. Basically DNS is a hierarchical system of DNS servers that resolves DNS names to IP addresses.
8.2. Using DNS
Most likely you are confronted with DNS without knowing e.g. when you type www.alcatel.com, into the URL field of the browser. Your browser must resolve www.alcatel.com into an IP address in order for the HTTP request to end up in the Alcatel World Wide Web server.
Most of the time your ISP or Corporate Network performs this DNS resolving. However the Speed Touch can play a role too: local DNS resolving and DNS proxying.
The same mechanism for resolving computer names to IP addresses when surfing the Net, applies to your local network. Instead of using the IP addresses for a local IP nodes e.g. 10.0.0.138 for the Speed Touch, give your nodes names and let a local DNS server do the resolving.
8.3. Configure Your Local Network for DNS - Automatic IP Configuration
DNS is active by default, so nothing has to be configured.
In the DNS scenario, it is assumed DHCP is used for IP parameter distribution.
When your PC is powered on, TCP/IP launches a DHCP request on the local network. One of the fields in the DHCP request contains the computer name e.g. YourPC.
The Speed Touch reacts by intercepting this request and returns a DHCP reply containing:
A second PC is powered on and is configured via a DHCP as below:
As an example, it is now possible to ping both PCs by referring to their computer name instead of their IP addresses.
The mechanism is as follows:
8.4. Non-local DNS
The Speed Touch only resolves names in the local domain i.e. local.net. All other domain names it cannot resolve are forwarded over the appropriate link on the ADSL line.
9. Lost Speed Touch
It could happen that you are no longer able to reach the Speed Touch via IP, for example due to a configuration error or you simply forgot the IP address you once configured.
Additionally, because the Speed Touch has many features and quite some configuration flexibility, you might end up in a situation where restoring all manufacturing defaults might be necessary.
The Speed Touch has a few tools to cope with these situations:
9.1. Push Button (Home only)
At the back of the Speed Touch Home there is a tiny push button labeled "Defaults". Please look at section 2.6: "Rear Panel" for more.
The procedure to set all Speed Touch configurable items back to their manufacturing defaults is as follows:
9.2. DIP Switches (Pro Only)
At the back of the Speed Touch Pro there is a a set of DIP switches labeled "Config". Please look at section 2.6: "Rear Panel" for more.
The procedure to set all Speed Touch configurable items back to their manufacturing defaults is as follows:
9.3. Ping-of-Life
If you only want to reset the IP address of the Speed Touch Home you must use the Ping-of-Life feature. For the Speed Touch Pro you can also do this via the serial interface.
The principle is simple, a special ping packet will deliver an IP address to your Speed Touch.
The steps to be performed are:
| Note | Most TCP/IP packages support the ARP and PING command. |
The procedure for Windows 95 is described below. There might be small differences for other platforms.
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Interface IP address To assure that all actions are performed on the correct interface (the one connected to the Speed Touch), you must specify the IP address of that interface. To do so use the following syntax : arp -<a, s, d> <Speed Touch IPaddress> -N <interface IPaddress> |
arp -s <Speed Touch IPaddress> 01-90-D0-80-01-01 -N <interface IPaddress>
<Speed Touch IPaddress> is a placeholder for the IP address to be assigned. In the subsequent example, 10.0.0.145 will be used.
MAC address (01-90-D0-80-01-01) is a special MAC Group address from Alcatel to which the Speed Touch will respond.
arp -a -N <interface IPaddress>
ping 10.0.0.145
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'Ping -t' command It is also possible to deliver an IP address to the Speed Touch using the following procedure: 1. Ping the IP address with the command ping -t <IPaddress>. 2. Power down the Speed Touch. 3. Add an entry to the ARP table with the 'arp -s' command. 4. Ping the IP address with the command ping -t <IPaddress>. 5. Power up the Speed Touch. 6. The Speed Touch will reply to the ping. 7. Terminate the continuous ping by pressing CTRL-C. |
arp -d <Speed Touch IPaddress> -N <Interface IPaddress>
You may also leave the entry in the ARP cache as this does not harm the general operation.
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IP Address Requirement Make sure that the Speed Touch Pro and your PC are in the same IP (sub)network. If not the ping will be submitted with the MAC address of the default router. |
9.4. Ping-to-Defaults
Another method to reset all settings to factory defaults is the Ping-to-defaults method.
The technique is identical to that used for the Ping-of-life, except that another MAC address is used, i.e. 01-90-D0-00-01-FF.
The following steps will cause the Speed Touch to revert to the default values:
arp -a <any IPaddress> 01-90-D0-00-01-FF
ping <any IPaddress>
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Be careful when using the Ping-to-defaults command as it destroys all changes previously made to the Speed Touch internal settings. |
10. Speed Touch Local Configuration
The Speed Touch can be configured in different ways:
10.1. Web Interface
The Speed Touch comes with an Integrated Local Configuration capabilities. The Interface is based on the "HTTP Server/Web Browser Concept" which allows you to configure the Speed Touch via your web browser.
| Note | Local configuration is only possible through the Ethernet interface of the Speed Touch. The ATMF-25 interface remains plug & play hence requires no configuration at all. |
10.1.1. Configuring Your Browser
To configure your Speed Touch, make sure your browser is not using a proxy server. The procedure to disable proxy settings depends on the browser you are using:
Netscape Navigator
Microsoft Explorer
After configuring your Speed Touch, do not forget to set your browser to its original settings !
| Note | Since different versions of these Web Browsers exist, the proxy settings might be located in other menus than the ones described above. Consult the documentation of your Web Browser for more information on Proxy Settings. |
10.1.2. Accessing the Speed Touch Local Management Interface
To access the Speed Touch Local Management proceed as follows:
From now on the Speed Touch acts as a Web server sending HTML pages/forms at your request. You can fill out these pages/forms and submit them to the Speed Touch. The Speed Touch scans the pages and makes configurations accordingly.
The next paragraphs give more explanation about the available pages/forms and how to use them.
10.1.3. Generic Principles
Below you will find the function of all generic buttons. These buttons appear on most of the web pages and help you to manage the Speed Touch internal settings.
Apply
Once this button is pressed, all changes you made, will take effect. However, as they are only stored in volatile memory, these settings will be lost when the Speed Touch is reset or powered off.
Save
Via this button you can save changes in permanent storage. Unlike with the 'Apply' button, the active configuration parameters will remain in effect when the Speed Touch is reset or powered on/off.
Defaults
If you make a mistake during configuration, 'Defaults' allows you to recall the default settings for a particular topic. You must still press 'Save' to make the default settings persistent again.
Advanced
Most configurable items are presented in a two-level hierarchy:
Pressing the latter will present you with the more advanced items for a particular topic.
Home
Independent of the page you are on, this button brings you back to the Speed Touch "Welcome Page".
Back
Independent of the page you are on, this button allows you to go "one step back".
10.1.4. Welcome Page
This is the opening (home) page of the Speed Touch Local Management browser.
The following buttons apply to this page only:
Initial Setup
This button brings you to the 'Speed Touch Configuration' page, allowing you to adapt the Speed Touch internal settings to your local networking needs.
System Setup
This button brings you to the 'System Setup' page, allowing you to restrict the access to the local configuration by specifying a password. This password will have to be entered each time you access the local configuration via a web browser, telnet or the serial interface.
Phonebook
This button brings you to the 'Phonebook' page, allowing you to adapt the Speed Touch VPI/VCI values.
Dial-in
This button brings you to the 'PPP Connection table' page, allowing you to setup a connection.
Routing
This button brings you to the 'Routing' page, allowing you to configure settings for very specific IP configurations.
Bridge, PPTP, PPP, CIP
These buttons open the configuration page for the networking model involved.
The Speed Touch Pro supports four networking models, one based on LAN bridging, one based on PPP relaying and local tunneling by means of PPTP, one based on IP Routing over PPP and one based on Classical IP.
The Speed Touch Home offers LAN Bridging and PPP/PPTP only. Indeed, pressing the PPP or CIP button with the Home version will popup an error message.
DHCP, DNS
These pages allow you to configure advanced internal settings for your local networking needs.
System Overview
Pressing this button gives you an instant view of all Speed Touch connections and their parameters.
Upgrade
Allows to perform a software update of the Speed Touch.
10.1.5. Speed Touch Configuration Page
A number of functions in the Speed Touch rely on an Internet Protocol (IP) for their operation. IP requires a minimum set of parameters for its internal functioning:
These parameters can be configured manually, entering the values in the fields of the 'User defined configuration' box or automatically via the 'DHCP Configuration' page.
As the Speed Touch-IP layer supports multi-homing (one interface supporting multiple IP addresses), the manually configured IP address and the automatically required IP address are both active at the same time.
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These IP parameters are for local communication only. This means between the machines on your own local network and the Speed Touch. Via PPP/PPTP a second IP parameter set will be negotiated between the PC(s) and the remote site. This second IP set will be invisible to you and will not interfere with the local IP configuration. |
Parameters used on this page:
Speed Touch MAC Address
The MAC address of the Speed Touch Ethernet interface is displayed just under the header of the configuration page
IP Address
In this field you can change the user defined IP address of the Speed Touch to a value more suitable to your local IP address policy.
| Note | The Speed Touch comes with the default IP address 10.0.0.138 which belongs to the class A private address range set aside by IANA. For more information on Private IP addresses, see appendix F: "Public and Private IP Addresses". |
Netmask / Subnet Mask
This field represents the default netmask associated with the particular IP address class you assigned to the Speed Touch. Leave this field unchanged if no subnetting is applied in your local network.
The Speed Touch will automatically fill out the default netmask for the particular IP address class e.g., 255.0.0.0 for the preconfigured IP address. If you want to apply subnetting in your local network, extend the subnet mask with additional bits.
10.1.6. Speed Touch Routing Page
This page allows you to configure settings for very specific IP configurations.
This table summarizes all IP addresses configured in the Speed Touch, e.g. User Defined and BOOTP acquired. In addition the Loopback IP address is shown.
The following fields are shown in the IP Address table:
Intf
Indicates the Interface to which the IP parameter set was assigned to. It can take two values, i.e. Ethernet and Loopback
Address
Shows the IP address of the Interface
Netmask
If available, shows the Subnet mask of the Interface
Type
Indicates the origin of the IP parameters and can take three values:
Filled out manually through the Initial Configuration Page
The parameters were acquired automatically through BOOTP/DHCP, for more information see Initial Configuration Page
Implies that an additional IP parameter set was added through this page.
Action
Allows you to Delete a parameter set if you are in the first part of the table or allows you to add additional IP parameter sets if you are at the bottom of the table.
Because the Speed Touch is a router, it has the ability to access machines in other networks than its own. This can be achieved by adding specific routes in this Routing Table.
Note that most IP hosts display routing entries for every configured IP address. This principle is not followed in the Speed Touch; only specific routes are displayed in this table.
In order to add a route to the routing table, use the bottom row of the table. The specific fields that can be filled out are:
This field is in fact a button that can perform two actions:
10.1.7. The Speed Touch Phonebook Page
10.1.7.1. Definition
The Speed Touch Phonebook is like any ordinary phonebook, a repository for names and numbers. In contrast with a standard phonebook though, it is extended with additional information.
The Speed Touch Phonebook contains 5 columns:
This column shows names or aliases referring to organizations connected at the remote end of the virtual channels. In fact you may give any name to an entry.
The VPI/VCI column lists the VPI/VCI values of the virtual channels that may be cross-connected to these remote organizations.
Represents the packet service that is possibly supported at the remote end of the virtual channel. The supported packet services are: Bridging, PPTP, PPP and CIP.
This column indicates the state of the virtual channel (e.g. configured, in use etc.).
The Action column allows you to either add or delete entries in the ST Phonebook.
10.1.7.2. Using the Phonebook
The main function of the Speed Touch Phonebook is to present an immediate overview of all possible entries and their status. Another important function is that it helps you to navigate through the various Speed Touch connectivity possibilities.
Entries in the Speed Touch Phonebook can be added or changed at will. However connections that are in use or configured in other pages cannot be deleted from the Speed Touch Phonebook. This to prevent unintentionally deleting a connection.
As Phonebook entries do not consume Speed Touch communications resources, you are free to store all you favoured connections for reference at a later date.
10.1.7.3. Configuration
The first time the Speed Touch Phonebook is consulted, it will show manufacturing defaults. You can change these defaults or or add new entries.
| VPI/VCI | Service | State |
|---|---|---|
| 8/35 | Bridging | Forwarding |
| 8/36 | Bridging | Disabled |
| 8/37 | Bridging | Disabled |
| 8/38 | Bridging | Disabled |
| 8/48 | PPP-to-PPTP Relay | |
| 8/49 | PPP-to-PPTP Relay | |
| 8/50 | PPP-to-PPTP Relay | |
| 8/51 | PPP-to-PPTP Relay |
| VPI/VCI | Service | State |
|---|---|---|
| 8/35 | Bridging | Disabled |
| 8/36 | Bridging | Disabled |
| 8/37 | Bridging | Disabled |
| 8/38 | Bridging | Disabled |
| 8/48 | PPP-to-PPTP Relay | |
| 8/49 | PPP-to-PPTP Relay | |
| 8/50 | PPP-to-PPTP Relay | |
| 8/51 | PPP-to-PPTP Relay | |
| 8/64 | PPP & IP Routing | |
| 8/65 | PPP & IP Routing | |
| 8/66 | PPP & IP Routing | |
| 8/67 | PPP & IP Routing | |
| 8/80 | CIP & IP Routing | |
| 8/81 | CIP & IP Routing | |
| 8/82 | CIP & IP Routing | |
| 8/83 | CIP & IP Routing |
10.1.8. Bridge Configuration Page
The Speed Touch contains an IEEE 802.1D compliant databridge that can be reconfigured using this page.
Normally for bridging nothing needs to be configured for proper operation as it is a plug & play device.
Should interoperability problems occur, you can easily change the default settings according to the information supplied by the remote organization (ISP or Corporate network).
Bridge Port
One of the characteristics of a databridge is the number of ports it supports. A bridge port is in fact the logical equivalent of an interface. By default the Speed Touch supports one local port (Ethernet interface) and four remote ports. The remote ports are mapped to the virtual ATM connections on the ADSL Line. Only the remote ports are shown in the table and are indicated by ADSL Port 0, 1, 2 and 3.
Encap
Encapsulation/Decapsulation refers to the encapsulation/decapsulation of Ethernet or IEEE 802.3 frames in/from AAL5/ATM. Encapsulation/decapsulation will be referred to as 'encapsulation' for readability.
The Speed Touch is compliant with RFC 1483 "Multiprotocol Encapsulation over ATM Adaptation Layer 5" and supports both the LLC/SNAP method and the VC MUX method for Bridged Ethernet V2.0/IEEE 802.3 PDU's. By default the Encapsulation method is set to LLC/SNAP and the Access Server of your remote organization (ISP or Corporation) must use the same method. If this is not the case, please contact your ISP or Corporate network administrator.
FCS
Part of the RFC 1483 encapsulation method indicating whether the last four bytes of the MAC frames (MAC Medium Access Control frames, mostly referred to as Ethernet or IEEE 802.3 frames) will be preserved or not.
By default the FCS of a MAC frame will not be preserved and is set to NO in the particular column.
If the remote site requires the FCS to be preserved over the ADSL connection, fill out YES.
State
This field allows you to change the state of the individual LAN ports. By default only two ports (local port and one virtual one) are in forwarding state, meaning that traffic can pass via these ports. The other ports can be enabled putting them in the Enabled state.
Action
This column contains Action Buttons allowing to add or delete bridge ports.
The maximum number of remote bridge ports supported is 4.
Deleting bridge ports might be useful if you want to use more than the 8 PPP/PPTP ATM connections currently available (default value).
This box contains the ageing timer of the bridge internal database. Only in exceptional cases may the default value of 300s (5 minutes) be modified. The range allowed is from 10 seconds to 12 days which is compliant with the IEEE 802.1D bridging standard.
10.1.9. PPP/PPTP Configuration Page
The PPTP Destination table displayed on this page presents you with relevant PPP/PPTP connection information.
The following three fields are part of the PPTP Destination table:
Channel ID
The numbers found in this column refer to the ATM Virtual Channels on the ADSL line. Using one of these numbers in the PPTP Connection Icon on your PCs desktop allows you to select a particular remote destination.
Name
Has the same functionality as 'Channel ID' parameter, but refers to the ATM Virtual Channels. However, with 'Channel ID' you can customize this entry to reflect the remote organization connected to this virtual channel. Suppose the Local Operator established 4 permanent virtual channels from your Speed Touch to your corporate headquarters; You "name" these virtual channels after your company or favorite IS, e.g.,:
| Channel ID |
Name | |
| 0 |
Alcatel | |
| 1 |
Alcatel | |
| 2 |
Alcatel | |
| 3 |
Alcatel |
In this example, from now on you can supply "Alcatel" in the PPTP Connection Icon on your PCs desktop. The Speed Touch will then connect you to one of the free Alcatel virtual channels. An additional advantage of the 'Name' field is that you are automatically transferred to a free channel (provided the channel pool is not exhausted) which is not the case when using Channel ID.
Encaps
Encapsulation/Decapsulation refers to the encapsulation/decapsulation of PPP packets in/from AAL5/ATM. Encapsulation/decapsulation will be referred to as 'encapsulation' for readability.
The Speed Touch is compliant with RFC 2364 "PPP Over AAL5" and supports both the LLC/NLPID method and the VC MUX method. By default the Encapsulation method is set for LLC/NLPID and the Access Server of your remote organization (ISP or Corporation) must use the same method. If this is not the case contact your ISP or Corporate.
HDLC Framing
PPP packets arriving via a PPTP tunnel and PPP packets encapsulated on ATM connections differ in format. The PPP format on AAL5 follows RFC 1661 "The Point-to-Point Protocol (PPP)", see Figure 39, whereas the PPP format within a tunnel follows draft-ietf-pppext-pptp-4.txt "Point-to-Point Tunneling Protocol (PPTP)", see Figure 40. The latter format has two additional bytes in front of the packet (FF 03) inherited from another encapsulation i.e., RFC 1662 "PPP in HDLC-like framing".
In order to cope with these PPP packet differences the Speed Touch adapts to the different formats on a per connection base . Although RFC2364 is quite clear with regards to PPP format on AAL5, the Speed Touch offers a configuration possibility if interoperability problems should arise.
| Note | This configuration possibility applies to the Upstream direction only! In the downstream direction the Speed Touch will always make sure that FF-03 is in front of the packet before it is put on the tunnel. |
The PPP/AAL5 format configuration options are:
The Speed Touch will make sure that FF-03 will never be found in front of a PPP packet encapsulated on an AAL5/ATM connection, independent of the actual format of the PPP packets in the tunnel. This is the default setting and follows RFC 2364.
The Speed Touch will make sure that FF-03 is always in front of a PPP packet encapsulated on an AAL5/ATM connection. Although not supported by RFC 2364, some equipment may rely on this format.
The Speed Touch will not change the PPP packet arriving via a tunnel, that is, it will keep the two bytes in front of packet when it does the encapsulation.
State
The Speed Touch allows multiple users to connect to different remote organizations simultaneously. However this has a price, as every time somebody surfs through the Speed Touch a connection is no longer available for other users. From the moment a connection is taken, the field "In Use" changes from "IDLE" to "In Use (xxx.xxx.xxx.xxx)". The number in brackets is the IP address of the PC currently using the connection.
10.1.10. System Overview Page
This page gives you an overview of all ADSL channels on the Speed Touch. It is in fact a summary of the Bridge page , the PPTP page, the PPP page an the CIP page.
10.2. Command Line Interface
As mentioned in the introductorary part, the Speed Touch exhibits a Command Line Interface (CLI) . The CLI can be accessed via either the serial port (Pro version only) or via the Ethernet interface (Home & Pro version).
10.2.1. Telnet Access
Via a PC connected to the Ethernet interface of the Speed Touch you can execute CLI commands. You must gain access to the Speed Touch first, by opening a TCP/IP Telnet session.
To execute CLI commands via Telnet proceed as follows:
10.2.2. Console Port Access
For the Speed Touch Pro you can execute CLI commands from the serial port.
Setup the serial interface of your ASCII terminal for:
Connect the ASCII terminal or a PC with terminal emulation to the port marked "Console" at the back of the Speed Touch. Similar to Telnet Access, the Speed Touch CLI banner will appear on your ASCII Terminal.
The serial interface of the Speed Touch is a 9 pins D-type connector and has the following pin numbering and assignment.
| Pin No | Circuit | RS232-9 | Description |
|---|---|---|---|
| 2 | 104 | RD | Received Data |
| 3 | 103 | DCD | Transmitted Data |
| 5 | 102 | SD | Signal Common |
| Note | Only the signals above are of importance, all other pins are left floating. |
11. Software Upgrade
11.1. Introduction
The Speed Touch supports two software upgrade possibilities:
Both features are simultaneously supported. However the final result depends on the ADSL Provider's policy.
11.2. Software Download from the Network
This feature is controlled by the ADSL operator. At some point in time your ADSL provider might decide to upgrade the software in your Speed Touch. This download will happen almost unnoticed. Though you will see a change in the software version if you surf to the Upgrade page.
11.3. Software Upload from a PC
The procedure to upload software from a PC is as follows:
Your Speed Touch will reboot and come online again with the new version. Surfing to the Upgrade page shows that active and passive versions (prior to the upgrade) have trade places.
| Note | For new software upgrades, please contact your ADSL Provider or ISP. |
12. Advanced Networking Concepts
12.1. ATM Connectivity
12.1.1. Overview
ATM is a connection-oriented packet switching technology using fixed-size packets, called cells. ATM cells consist of a header and a payload and are switched through a public or private ATM network depending on the contents of the header. End-to-end connections are formed by cross-connecting individual ATM segments in ATM switches.
Virtual Channels
ATM uses Virtual Channels (VC) to create individual communication links between network nodes. ATM uses two types of VCs:
Currently ATM connections are static i.e. of type PVC.
Channel Identifiers
Each ATM cell contains a VPI and a VCI as part of its header. Each ATM channel, commonly referred to as virtual channel, is fully identified by these two values. Therefore, multiple ATM channels can reside on your ADSL line.
12.1.2. ATM and Your Speed Touch
Practically speaking, a number of virtual channels to one or multiple remote destination(s) can start from/are terminated at the Speed Touch. By default, a number of channels are terminated in the Speed Touch for Ethernet; others are cross-connected to the ATMF-25.6 interface.
As current ATM connections are static, a particular VPI/VCI value can be seen as an alias for the remotely connected organization. See Appendix G for the specific ATMF and Ethernet VPI/VCI values.
End-to-end ATM connectivity is the responsibility of local operators. There might be regional differences in the type and number of ATM channels that are cross-connected. If problems are encountered, check with your local operator for more information.
12.1.3. ATM & CPE Interfaces
ATM traffic arriving at the Speed Touch is switched to either the Ethernet interface or the ATMF-25