Huawei SmartAX MT880 User manual

SmartAX MT880 ADSL Router
User Manual
HUAWEI TECHNOLOGIES CO., LTD.

SmartAX MT880 ADSL Router User Manual
Issue 01
Date 2007-09-06
No. 103075
Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website: http://www.huawei.com
Email: [email protected]
Copyright © Huawei Technologies Co., Ltd. 2007. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by
any means without prior written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies
Co., Ltd.
All other trademarks and trade names mentioned in this document are the
property of their respective holders.
Notice
The information in this document is subject to change without notice. Every
effort has been made in the preparation of this document to ensure accuracy
of the contents, but all statements, information, and recommendations in this
document do not constitute the warranty of any kind, express or implied.

Federal Communications Commission (FCC) Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference,
and (2) this device must accept any interference received, including
interference that may cause undesired operation.
Safety Precautions
General Requirements:
zBefore you install and use the device, read these safety precautions
carefully and observe them during operation.
zDuring storage, transportation and operation of the device, keep the
device dry.
zDuring storage, transportation and operation of the device, avoid
collision and crash of the device.
zNever attempt to dismantle the device by yourself. In case of any
fault, contact the appointed maintenance center for repair.
zWithout prior written consent, no organization or individual is
permitted to make any change to the structure or safety design of
the device. Huawei Technologies Co., Ltd. is not liable to any
consequences or legal issues due to such changes.
zWhile using the device, observe all applicable laws, directives and
regulations, and respect the legal rights of other people.
Environmental Requirements:
zPlace the device at a well-ventilated place. Do not dispose the
device to direct sunlight.
zKeep the device clean and free of dusts.
zPlace the device on a stable platform.
zDo not place any object on top of the device. Otherwise, the device
may be too hot during operation. It can even be deformed or
damaged by the heavy load.
zKeep at least 10 cm between the device and the closest object for
heat dissipation.
zDo not place the device on or near any object that can easily catch
fire, such as something made of rubber.

zKeep the device far away from any heat source or bare fire, such as
a candle or an electric heater.
zKeep the device far away from any household appliance with strong
magnetic field or electromagnetic field, such as a microwave oven
or a refrigerator.
Operating Requirements:
zDo no let a child operate the device without guidance.
zDo not let a child play with the device or any accessory. Swallowing
the accessories may lead to peril.
zUse the accessories provided or authorized by the manufacturer
only.
zThe power supply of the device shall meet the requirements of the
input voltage of the device.
zBefore plugging or unplugging any cable, shut down the device and
disconnect it from the power supply.
zWhile plugging or unplugging any cable, make sure that your hands
are completely dry.
zDo not tread on, pull or over-bend any cable. Otherwise, the cable
may be damaged, leading to malfunction of the device.
zDo not use an old or a damaged power cable.
zDuring lightning weather, stop using the device and disconnect it
from the power supply. Unplug the power plug and the ADSL twisted
pair, to avoid lightning strike.
zIf the device is not used for a long time, disconnect it from the power
supply and unplug the power plug.
zIn any of the following cases, stop using the device, disconnect it
from the power supply and unplug the power plug immediately:
there is smoke emitted from the device, or there is some abnormal
noise or smell. Contact the specified maintenance center for repair.
zAvoid any object (such as metal shavings) from entering the device
from the heat dissipation intakes.
zDo not scratch or abrade the shell of the device. This may lead to
malfunctions of the device. The shed painting material may also
lead to skin allergy.

Cleaning Requirements:
zBefore cleaning the device, stop using it and disconnect it from the
power supply.
zUse a piece of soft cloth to clean the device.
zKeep the power plug clean and dry. Using a dirty or wet power plug
may lead to electric shock or other perils.
This device complies with part 15 of the FCC Rules.Operation is subject to the
following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.

文档名称 文档密级
2007-9-24 华为机密，未经许可不得扩散 第1页, 共1页
Note: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio
or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the
following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.

i
Table of Contents
Chapter 1 Introduction .....................................................................1
1.1 Functions and Features.........................................................1
1.2 Appearance ...........................................................................1
1.2.1 Front Panel .................................................................2
1.2.2 Rear Panel..................................................................4
Chapter 2 Installation of the MT880 ................................................6
2.1 Preparation............................................................................6
2.2 Connecting the MT880..........................................................6
2.3 Setting Up the Configuration Environment............................8
2.3.1 Planning the Parameters ............................................8
2.3.2 Operation ....................................................................9
2.4 Web Setup Page .................................................................10
Chapter 3 Service Configuration...................................................12
3.1 Configuration Method..........................................................12
3.1.1 Protocol Model..........................................................12
3.1.2 Steps.........................................................................13
3.2 Service Modes of the MT880 ..............................................14
3.3 Configuring the Pure Bridge Mode......................................16
3.3.1 Preparation ...............................................................16
3.3.2 Steps.........................................................................17
3.4 Configuring the PPPoE Mode .............................................18
3.4.1 Preparation ...............................................................19
3.4.2 Steps.........................................................................20

ii
3.5 Configuring the PPPoA Mode .............................................22
3.6 Configuring the RFC2684B Mode .......................................22
3.6.1 Preparation ...............................................................23
3.6.2 Steps.........................................................................23
3.7 Configuring the RFC2684(IPoA) Mode ...............................26
Chapter 4 Other Configurations ....................................................27
4.1 Changing the LAN IP Address ............................................27
4.2 Changing the Administrator Password................................28
4.3 Restoring the Default Settings ............................................28
4.4 Firmware Upgrade...............................................................29
Chapter 5 Troubleshooting............................................................30
5.1 Fixing Common Problems...................................................30
5.2 FAQs ...................................................................................31
Chapter 6 Technical Specifications ..............................................33
Chapter 7 Appendix ........................................................................35
7.1 Default Settings ...................................................................35
7.1.1 Common Default Parameters ...................................35
7.1.2 Default PVC Parameters ..........................................35
7.2 Acronyms and Abbreviations ..............................................37

1
Chapter 1 Introduction
This chapter describes the functions and the appearance of the
SmartAX MT880 ADSL Router (hereinafter referred to as the MT880).
1.1 Functions and Features
The MT880 is a type of Asymmetric Digital Subscriber Line (ADSL)
terminal. Using the MT880 and a telephone line, you can enjoy data,
video and audio services at a high speed.
The features of the MT880 are:
zHigh transmission rate: The maximum downlink transmission
rate is 24 Mbit/s. The maximum uplink transmission rate is 1.2
Mbit/s.
zStrong network adaptability: The MT880 can interconnect
with multiple Digital Subscriber Line Access Multiplexers
(DSLAMs).
zStrong maintainability: The MT880 provides a number of
indicators, helping you to locate failures.
zEasy operation: The MT880 provides user-friendly interfaces
for configuration and management.
1.2 Appearance
This section describes the appearance of the MT880.

2
1.2.1 Front Panel
Figure 1-1 shows the front panel of the MT880.
Figure 1-1 Front panel of the MT880
Note:
The figure of the front panel is only for your reference.
Table 1-1 describes the indicators on the front panel.
Table 1-1 Indicators on the front panel
Indicator Status Description
Steady
green light The MT880 is powered on.
Power
Off The MT880 is powered off.

3
Indicator Status Description
Blinking
green light The MT880 is being activated.
On The MT880 is activated.
Blinking
orange
light
The built-in PPP dial-up software is dialing.
Steady
orange
light
The built-in PPP dial-up software
completes dialing successfully.
ADSL
LINK
Off The telephone line is not connected or the
MT880 is preparing for the next activation.
Blinking
green light
Data is being transmitted over the ADSL
interface.
ADSL
ACT
Off No data is transmitted over the ADSL
interface.
Steady
green light
The Ethernet interface is normally
connected and the data is transmitted at 10
Mbit/s.
Steady
orange
light
The Ethernet interface is normally
connected and the data is transmitted at
100 Mbit/s.
LAN LINK
Off The Ethernet interface is not connected
with the network cable.
Blinking
green light There is traffic over the Ethernet interface.
LAN ACT
Off No data is transmitted through the Ethernet
interface.

4
Note:
If the MT880 fails to activate, it tries again after one minute. The ADSL
LINK indicator is off during this period.
1.2.2 Rear Panel
Figure 1-2 shows the rear panel of the MT880.
Figure 1-2 Rear panel of the MT880
Note:
The figure of the rear panel is only for your reference.
Table 1-2 describes the interfaces and buttons on the rear panel.

5
Table 1-2 Interfaces and buttons on the rear panel
Interface/Button Description
ADSL It connects with the Modem interface of a splitter.
Ethernet It connects with a computer or a switch.
Reset
It restores the default settings of the MT880.
Once you press this button, all your customized
settings will be lost. Be cautious with this
operation.
Power It powers on or off the MT880.
12V AC 0.8A It connects with the power adapter.

6
Chapter 2 Installation of the MT880
This chapter introduces the installation of the MT880.
2.1 Preparation
Before installing the MT880, prepare the following components:
zEthernet card: The MT880 communicates with a computer
through an Ethernet card. Make sure that an Ethernet card is
installed on the computer before connecting the MT880 with
the computer.
zSplitter (optional): A splitter can separate the data signals
from the voice signals being transmitted over a telephone line.
Only with this component can you make a telephone call and
access the Internet at the same time.
2.2 Connecting the MT880
You can connect the MT880 according to Figure 2-1.

7
Figure 2-1 Connecting the MT880
(1) PC (2) Phone (3) RJ-11 telephone line
(4) Splitter (5) RJ-11 telephone line (6) Phone jack
(7) RJ-11 telephone
line (8) MT880 (9) RJ-45 Ethernet cable
Caution:
Before connecting the MT880, power off the MT880 and the computer.

8
2.3.1
Operation:
1) Connect the interfaces of the splitter with other devices by
using a telephone line:
zLINE interface --> telephone jack on the wall
zMODEM interface --> ADSL interface of the MT880
zPHONE interface --> telephone
2) Connect the Ethernet interface of the MT880 with the
Ethernet interface of the computer by using a straight through
cable.
3) Connect the MT880 to a power socket by using the provided
power adapter.
4) Press the Power button of the MT880 to power on the
MT880.
5) Check the Power indicator on the front panel of the MT880.
If it is on, the MT880 is powered on.
2.3 Setting Up the Configuration Environment
You can configure the MT880 through the Web setup page. This
chapter describes how to set up the configuration environment of the
MT880.
Planning the Parameters
Before setting up the configuration environment, plan the following
parameters.

9
Table 2-1 Parameters for the configuration environment
Item Description
Username and password
of the administrator of the
MT880
Default:
zUsername: admin
zPassword: admin
LAN IP address and
subnet mask of the
MT880
Default:
zIP address: 192.168.1.1
zSubnet mask: 255.255.255.0
IP address and subnet
mask of the computer
Make sure that the IP address of the
computer is in the same network
segment as the LAN IP address of the
MT880.
For example:
zIP address: 192.168.1.100
zSubnet mask: 255.255.255.0
2.3.2 Operation
Follow these steps to set up the configuration environment.
Step To... Do...
1 Connect the
MT880
For details, see section 2.2 "Connecting the
MT880."

10
Step To... Do...
2
Check and
ensure that
the proxy
server is not
used
Taking Internet Explorer 6.0 as an example:
1) Launch the Internet Explorer.
2) Choose Tools > Internet Options... to
display the Internet Options dialog
box.
3) Choose the Connections tab and click
LAN Settings....
4) Deselect the Use a proxy server for
your LAN (These settings will not
apply to dial-up or VPN
connections) checkbox.
3
Log in to the
Web setup
page
1) In the address bar of the Internet
Explorer, enter http://192.168.1.1 (the
default IP address of the MT880).
2) Press Enter to display the login page.
3) Enter the username and the password
of the administrator.
Then you can access the Web setup page.
Note:
The computer must be set according to the parameters of the MT880.
For details, see Chapter 3 "Service Configuration."
2.4 Web Setup Page
The Web setup page of the MT880 can be divided into two parts:

11
zThe navigation tree: On the left of the page, it allows you to
access different setup pages.
zConfiguration area: On the right of the page, it displays the
configuration data.

12
Chapter 3 Service Configuration
This chapter introduces how to configure the MT880.
Note:
The figures in the following configuration operations are only for your
reference.
3.1 Configuration Method
3.1.1 Protocol Model
Figure 3-1 shows the protocol model for the connection between
the MT880 and the DSLAM at the office end.
PHY ADSL PHYADSL
ATM
PHY
MAC MACATM
(1) (2) (3)
PVC
Figure 3-1 Protocol model
(1) PC (2) MT880 (3) DSLAM