COPYRIGHT Nokia Telecommunications Oy 1999
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Document History
DocumentDateComment
C33539002SE_0017 Dec 1998First approved version
C33539002SE_A0
Nokia M10 is an ADSL modem which enables high-speed Internet
access and LAN interconnection. It increases the capacity of the
already installed telephone lines used traditionally for telephone
services. M10 enables high-speed connections for residential users,
small offices and telecommuters.
Figure 1-1Nokia M10
Nokia M10 is a modem with an ADSL router and bridge. This allows a
PC equipped with a 10Base-T Ethernet interface to be connected to a
remote IP network via a Digital Subscriber Line Access Multiplexer
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Nokia M10 User’s Manual
(DSLAM) and an ATM access network. M10 can also act as a bridge
between the Ethernet LAN and ADSL/ATM network interfaces.
The ADSL transmission is based on a DMT line code and it provides
speeds up to 8 Mbit/s downstream (from the network) and 1 Mbit/s
upstream (to the network). M10 can adjust its speed to the line
conditions in steps of 32 kbit/s maximising the data throughput over
the given distance. M10 is compatible with Nokia Eksos B DSLAM.
M10 provides optimised access to high-speed data services. It can be
used to connect telecommuters to the corporate network or netsurfers
to the Internet Service Provider’s (ISP) network, for example.
As a default, M10 supports plug-and-play operation for an Internet
access application. The ADSL connection, data connection as well as
Internet network addresses are set up automatically.
M10 has an integrated W eb server which enables the configuration of
the most frequently used parameters with an ordinary W eb browser . It
can also be managed through a command line interface via telnet
protocol or via local console interface.
An external POTS filter enables the simultaneous use of the
conventional telephone service and the ADSL data services.
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Chapter 2
Applications and features
DRAFT
Applications and features
This chapter introduces the most common applications, features and
management method options of M10.
2.1Applications
M10 has three main applications:
DInternet access
DRemote work
DLAN interconnection
In these application examples M10 can act as a router, bridge or NAPT
router . The selected mode for every single application depends on the
access and service provider network architectures. T able 2-1 presents
the different application examples and the respective modes of M10.
The application examples described in this manual are marked with
bold ’X’s. See Chapter 6 for more information on routing, bridging and
Network Address Port Translation.
ApplicationNAPTRouterBridge
Business Internet accessXXX
Residential Internet accessXX
Remote workXXX
LAN interconnectionXX
Table 2-1Applications and M10 modes
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2.1.1Internet access using NAPT router
M10 can connect your PC via your operator’s Digital Subscriber Line
Access Multiplexer (DSLAM) and ATM network to an Internet
service provider (ISP). If you are connected to a single ISP the network
addresses (IP addresses) in your home can be part of the ISP’s IP
address range. However, in many cases it is more practical that the
home network is an independent network utilising private IP addresses
which are not visible to outside and that M10 has only one external IP
address received from the ISP. The external Internet services are
accessed through this single IP address. This mode of operation is
called the Network Port Address Translation (NAPT).
The benefits of NAPT are the minimum coupling of the ISP and the
home network, the saving of public IP addresses, and in–built simple
firewall functionality.
Home
network
Home
network
Home
network
LAN
10Base-T
Nokia M10
DSLAM
ATM
network
ISP Router
Internet
2-2
Figure 2-1Internet access using NAPT router
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2.1.2Remote work
In a typical remote work application M10 is used as an IP router to
provide access to corporate Intranet services. Using routing
functionality between the home and the corporate networks prevents
unnecessary broadcast traffic as well as non-IP protocol traffic from
loading the access connection still providing sufficient transparency
for Intranet applications. M10 routing table can be static or can be
updated dynamically using RIP version 1 and RIP version 2 routing
protocols.
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Applications and features
DSLAM
10Base-T
ATM
network
Remote
worker
Nokia M10
Remote
worker
Remote
worker
...
Corporate
network
Company
router
Figure 2-2Remote work using M10 as a standard router
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2.1.3LAN interconnection using M10 as a bridge
LAN interconnection between a corporate headquarters and its remote
office is another typical application for M10. In the LAN
interconnection application M10 is typically used as an Ethernet
bridge which relays all non-local Ethernet traffic between the
corporate headquarters and remote sites through the ATM core
network.
The benefit of bridging in this application example is the transparency
for all network protocols in a multiprotocol data communications
corporate network.
Remote
office 1
Remote
office 2
10Base-T
LAN
10Base-T
Nokia M10
...
LAN
DSLAM
ATM
network
Company
bridge
Corporate
network
Figure 2-3Internet access and LAN interconnection
2.2Functionality
M10 can operate as an OSI layer 3 Internet Protocol (IP) router
between the Ethernet interface and the virtual channels of ADSL/A TM
interface. M10 supports both dynamic and static routing.
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Applications and features
It can also operate as a self-learning bridge supporting up to 256 MAC
addresses.
Routing
Routing is based on routing entries in a routing table. Static routes are
added via the management interface and dynamic routing is done using
RIP and RIPv2. Routing is done between the Ethernet 10Base-T
interface and the virtual channel connection (VCC) of the A TM/ADSL
interface. Optionally, the routing between the VCCs can be disabled.
M10 supports up to 8 simultaneous VCCs.
Bridging
Bridging is supported if full protocol transparency is required.
Bridging can be used simultaneously with IP routing. M10 works as a
self-learning bridge supporting up to 256 MAC addresses. Bridging is
done between the Ethernet 10Base-T interface and each ATM VCC
interface. Optionally , the bridging between the VCCs can be disabled.
M10 supports up to 8 simultaneous VCCs.
Network Address Port Translation
M10 supports Network Address Port Translation (NAPT) for TCP/IP
and UDP/IP protocols. When NAPT is used a single IP address is
allocated to a VCC to the public IP network. The Ethernet subnet has
private IP addressing and is not visible to the VCC. NAPT translates
the IP source address and source port number dynamically to the VCC
IP address and port number . Similarly packets coming from the VCC
are mapped back to the original destination addresses. NAPT allows
up to 253 hosts to share the single VCC IP address to the public
network. The Network Address Port Translation principle is presented
in Figure 2-4.
Home network (LAN)Internet (WAN)
src:192.168.1.112:1228
dst:194.112.11.111:80
NAPT router
src:194.112.11.111:80
src:195.112.12.161:1234
dst:194.112.11.111:80
src:194.112.11.111:80
dst:192.168.1.112:1228
Figure 2-4Network Address Port Translation
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192.168.1.254
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195.112.12.161
dst:195.112.12.161:1234
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NAPT may restrict the operation of some IP applications. NAPT also
operates as a simple IP firewall because translation is only allowed
when the first packet is transmitted from the LAN because the NAPT
table entry is created on when a packet is sent from the home network
to the Internet. With a pinhole capability the user can add static entries
to the NAPT table allowing the translation always in both directions.
This capability is used to add servers (HTTP, NNTP, and FTP), which
are visible from the public IP network via the VCC, in the LAN subnet
Dynamic Host Configuration
M10 can act as a Dynamic Host Configuration Protocol (DHCP)
server for the PCs in the end-user LAN. In this mode M10 can assign
up to 253 IP addresses to the PCs in the home network.
ATM and ADSL
M10 supports up to 8 simultaneous VCCs and supports UBR
(Unspecified bit rate) traffic shaping on all VCCs. The maximum
transmit rate on each VCC is the ADSL upstream capability . If more
than one VCCs are transmitting simultaneously the ADSL upstream
capability is temporarily shared between these VCCs. When one VCC
is idle the bandwidth is used by another VCC.
The ADSL transmission is based on the DMT line code. M10 provides
a DMT line rate up to 8 Mbit/s downstream and up to 1 Mbit/s
upstream. The DMT transceiver is rate adaptive and capable of
providing faster rates over short distances or slower rates over long
distances. The transceiver adapts itself to the line conditions. The
ADSL interface of M10 functions completely automatically and all
configuration related to the ADSL connection is done at the access
multiplexer in the operator ’s premises.
The ATM over ADSL transmission is based on ANSI T1.413 Issue 2
recommendation.
Rate adaptation is done in steps of 32 kbit/s. The network operator can
set the data rates as a part of the network management functionality
provided by Nokia Eksos B DSLAM.
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Payload encapsulations
Both routed and bridged protocols are encapsulated in the A TM link by
using either RFC 1483 LLC/SNAP encapsulation or VC multiplexing.
M10 also supports PPP over AAL5 encapsulation, in which both
bridged and routed protocols are first encapsulated in PPP (RFC 1661).
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PPP is then encapsulated in ATM according to the IETF PPP over
AAL5 using RFC 2364 VC multiplexing.
Routed IP packets can also be encapsulated using LLC/SNAP or
VC-multiplexed Ethernet (bridged) encapsulations. See Chapter 6 for
more information on the payload encapsulations.
2.3Management
There are four management methods in M10:
DCommand line interface (CLI) over console serial port
DCLI via telnet
DSNMP
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Applications and features
DWeb browser management
The CLI allows complete configuration of the unit and the Web
browser management addresses the most frequently used
configuration parameters. SNMP can be used to read some equipment
identity information and to provide traps for authentication failures.
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Interfaces and indicator lights
Chapter 3
Interfaces and indicator lights
DRAFT
M10 provides one Ethernet 10Base-T interface and one ADSL line
interface. The ADSL line interface is ANSI T1.413 Issue 2
compatible.
3.110Base-T Ethernet interface
The Ethernet interface is a standard 10 Mbit/s half-duplex 10Base-T
interface. The mechanical connector is an 8-pin RJ-45 connector.
ETH
18
Figure 3-1Ethernet connector location
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PINSignalDirection
1Tx+–>Transmit data +
2Tx––>Transmit data –
3Rx+<–Receive data +
6Rx–<–Receive data –
3.2ADSL line interface
The ADSL line interface is ANSI T1.413 Issue 2 compatible. The
mechanical connector is a 6-pin RJ-11 connector.
MDI signal
M10-Ethernet
LINE
16
Figure 3-2ADSL line connector location
PINSignal
3DSL1
4DSL2
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Interfaces and indicator lights
3.3Front panel indicator lights
Six indicator lights have been grouped into three groups in the front
panel:
DSTA
DDSL
DLAN
STA DSLLAN
ERRCOLINA
DRAFT
OKLNK RX TXACT
Figure 3-3Front panel indicator lights
STA indicator
DErr (red): There is a malfunction in the unit. Switch power off and
on again. If this does not help send the unit for repair.
DOK (green): Unit is functional
DSL indicator (ADSL line status)
DINA (red): ADSL line is inactive (no connection). Blinking light
indicates that the ADSL link is training.
DACT (green): ADSL line is active (connection).
LAN indicators
DCOL (red): Blinking light indicates collisions on the Ethernet.
DLNK (green): Lit if the Ethernet connection is OK.
DRx (green): Blinking light indicates that M10 is receiving Ethernet
packets.
DTx (green): Blinking light indicates that M10 is transmitting
Ethernet packets.
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Chapter 4
Installation
DRAFT
Installation
This chapter presents a step-by-step installation example procedure
for three different application examples of Nokia M10:
These installation procedures are examples to guide you through some
of the typical use cases.
The installation examples assume that you have a new M10 with a
factory default configuration. The complete default configuration is
presented in the end of this chapter. The default settings are, briefly:
DSingle ADSL/ATM channel (VPI = 0, VCI = 100)
DPPP over ATM/AAL5 encapsulation
DM10 retrieves IP address configuration from the IP network using
PPP-IPCP negotiation
DNetwork Address Port Translation activated
DPrivate IP addresses in use in LAN
DDHCP server for the LAN interface activated
Before starting the installation, unpack the unit and check that it is
physically undamaged.
4.1Internet access (NAPT router)
This application is based on the default configuration of the Nokia
M10. By default, Nokia M10 is an Internet access device that uses
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Network Address Port T ranslation between the private home network
and the public Internet.
Customer premises
PC
uses
DHCP
Private IP
addresses
Nokia
M10/NAPT
Operator premises
Telephone
network
Filter
ATM
network
DSLAM
PPP
ATM
ADSL
low-pass filter
Telephone
cable
PPP
ATM
ADSL
4-2
single ATM
channel to
the ISP
ISP router
Figure 4-1Internet access application
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Internet
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DRAFT
Installation
The Internet access application requires that your PC uses Dynamic
Host Configuration Protocol (DHCP) to get its network address (IP
address) from your Nokia M10.
The installation procedure depends on whether you want to use data
services only or data and simultaneous telephone services. If you want
data services only start from the Step 1a. Start from Step 1b if you want
both data and telephone services.
M10 has an optional three-level password (user, user-admin, and
admin) which also affects the installation procedure. By default, the
password is disabled but it can be enabled through the command line
interface (see Chapter 5 Management). Steps 4b and 5b describe the
actions when password is enabled.
Step 1a: Connect cables (data services only)
Connect the following cables:
DConnect the mains power cord first to the Nokia M10 and to a
power outlet.
DConnect the Ethernet cross cable to the Nokia M10 ETH connector
and the other end to your PC’s Ethernet port.
DConnect the ADSL cable to the telephone socket.
DGo to Step 2.
Step 1b: Connect cables (data and telephone services)
If you want to use your telephone line for both the high-speed ADSL
service and normal telephone service you must install a POTS filter.
You can use Nokia POTS filter T66130 or T66150. See separate
installation instructions for POTS filters.
Connect the following cables:
DConnect the mains power cord first to the Nokia M10 and to a
power outlet.
DConnect the Ethernet cross cable to the Nokia M10 ETH connector
and the other end to your PC’s Ethernet port.
DConnect the ADSL cable and the telephone according to the
separate POTS filter installation instructions.
Step 2: Switch power on
Turn the Nokia M10 on. The green STA indicator and red DSL
indicator light up. After a while the DSL light starts blinking indicating
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that the connection is being established. Green DSL light indicates that
the unit has a connection to the central office.
Step 3: Turn on your PC
Turn on your PC. The LAN/LNK indicator lights up in the Nokia M10
front panel. Note that you must activate the DHCP functionality in
your PC to make it retrieve an IP address from M10.
Step 4a: Connect to M10 with a W eb browser (password disabled)
Start the W eb browser in your PC, write the IP address (192.168.1.254)
or the name (”M10”) of the M10 to the HTTP address field and press
Enter. The M10 QuickConfig page is displayed. Note that the
QuickConfig page is displayed first only when M10 has its factory
default settings active. If M10 has been previously configured the first
page to appear is the M10 home page. Go to Step 5a.
Step 4b: Connect to M10 with a W eb browser (password enabled)
Start the W eb browser in your PC, write the IP address (192.168.1.254)
or the name (”M10”) of the M10 to the HTTP address field and press
Enter . Enter Network Password dialog is shown. Enter your M10 User
name and Password and click OK. Goto Step 5b.
Step 5a: Configure M10 (password disabled)
Click Internet Access-Single PPP button to set your username and
password for the Internet service.
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Installation
Here it is assumed that the default settings of M10 are suitable for
accessing the Internet through your Internet Service Provider, i.e. the
connection from M10 to the ISP uses PPP over AAL5 protocol, the ISP
provides the required network address information to your M10
automatically, and the default connection channel (VPI and VCI
values) of M10 is correct. This means that you only have to enable the
needed authentication method (CHAP or P AP) by clicking the relevant
radio button and to type in your username and password related to the
authentication method. You will get the information which
authentication method to use and your corresponding username and
password from your Internet Service Provider. After entering the
information click Save and restart M10.
Step 5b: Configure M10 (password enabled)
Enable PAP or CHAP authentication and type in your corresponding
user name and password. You will get the information which
authentication method to use and your corresponding username and
password from your Internet Service Provider. After entering the
information click Save and restart M10.
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Step 6: Surf
After the ADSL connection has been established the installation is
complete and you can use your Web browser normally.
4.2Remote work (Basic router)
In the remote work application example the Nokia M10 routes you to
your company’s LAN through an ATM network. It is assumed that
your PC belongs to your company’s IP network and has a fixed IP
address. It is also assumed that static IP routing is used. An example is
shown in Figure 4-2.
4-6
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