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MicroLink

ADSL Modem Router

While the information in this manual has been compiled with great care, it may not be deemed an assurance

of product characteristics. devolo AG shall be liable only to the degree specified in the terms of sale and

delivery.

The reproduction and distribution of the documentation and software supplied with this product and the use

of its contents is subject to written authorization from devolo AG. We reserve the right to make any alter-

ations that arise as the result of technical development.

You can find all declarations and certifications of compliance for the products, as long as they were available

at the time of publication, in the appendix of this documentation.

Trademarks

Windows

and Microsoft

are registered trademarks of Microsoft, Corp.

Mac

is a registered trademark of Apple Computer, Inc.

Linux

is a registered trademark of Linus Torvalds.

MicroLink

is a registered trademark of devolo AG.

devolo and the devolo logo are registered trademarks of devolo AG. All other names mentioned may be

trademarks or registered trademarks of their respective owners.

Subject to change without notice. No liability for technical errors or omissions.

Aachen, September 2005

41551/0905

devolo AG

Sonnenweg 11

52070 Aachen

Germany

www.devolo.com

Preface

devolo MicroLink ADSL Modem Router

Preface

Thank you for placing your trust in this devolo product.

With the MicroLink ADSL Modem Router, you have purchased an ADSL router

that combines the functions and advantages of an ADSL modem, a switch

(hub) and a router in a single device. This combination makes it the optimal,

user-friendly network and Internet access solution for small-office and home-

office (SOHO) environments.

쎲 The router's ADSL modem provides satisfyingly fast Internet access:

쑗 Download speeds of up to 8 Mbps make transferring video material,

graphics and other high-volume data a pleasure.

쑗 With upload speeds of up to 1 Mbps, you can easily send large e-mail

attachments quickly and at low cost.

쎲 It also serves as an optimal combination of Internet-access router and

network switch:

쑗 The router simplifies the installation of Internet access significantly,

as no special drivers are required for the connected individual com

puters. The access protocol has been implemented in the router

itself.

쑗 The router functionality lets multiple users access the Internet at the

same time. NAT and firewall functions protect your local network

against intruders. DHCP automates the TCP/IP configuration of the

connected computers. The router can be configured conveniently

using a Web browser.

쑗 The integrated switch is the foundation for small networks. Up to four

computers can be connected simultaneously. Each of the four ports

can also be used as an uplink port to connect additional routers,

switches or hubs.

Preface

devolo MicroLink ADSL Modem Router

About this manual

Exacting manufacturing standards and stringent quality control are the basis

for high product standards and consistent quality to ensure your fullest sati

sfaction with this MicroLink ADSL Modem Router.

This documentation was compiled by several members of our staff from a

variety of departments in order to ensure you the best possible support when

using your product.

For further information, please visit 'www.devolo.com'

Our online services (www.devolo.com) are available to you around the clock

should you have any queries or require any further support.

Package contents

Please ensure that the delivery is complete before beginning with the instal-

lation of your router:

쎲 MicroLink ADSL Modem Router

쎲 AC adapter

쎲 ADSL cable

쎲 2 clips for stacking various devolo products

쎲 CD ROM with manual and software

쎲 printed manual

devolo AG reserves the right to change the package contents without prior

notice.

devolo MicroLink ADSL Modem Router

Content

1 Introduction ............................................................................................6

1.1 What is ADSL?...............................................................................6

1.2 What does the MicroLink ADSL Modem Router have to offer? ...7

2 Connection and installation ................................................................8

2.1 Display and connections................................................................8

2.2 Connecting the MicroLink ADSL Modem Router ..........................9

2.3 Networking examples..................................................................11

3 Router configuration ...........................................................................12

3.1 Setting up Internet access using the setup wizard.....................12

3.2 Setting up Internet access manually...........................................13

3.3 Advanced configuration...............................................................14

3.3.1 Description of the buttons ...........................................15

3.3.2 Starting the advanced configuration ...........................15

3.3.3 Main menu ...................................................................16

3.3.4 Setup ............................................................................17

3.3.5 Status ...........................................................................25

3.3.6 Tools.............................................................................27

3.3.7 Advanced...................................................................... 30

4 Appendix ...............................................................................................37

4.1 Performance data and specifications..........................................37

4.2 Care and maintenance of the device...........................................38

4.3 CE conformity...............................................................................38

4.4 Declaration of conformity............................................................39

4.5 Warranty conditions .................................................................... 40

Introduction

devolo MicroLink ADSL Modem Router

1 Introduction

1.1 What is ADSL?

The sheer speed of development of computer technology over the last few

years has resulted in a huge increase in the volume of electronic data traffic.

More users every day want to send and receive a constantly increasing

volume of data. Conventional transmission technologies (analog modems or

ISDN devices) are no longer equal to the demand.

New technologies are eliminating the restrictions and are offering the user

true broadband communications at significantly higher transfer speeds. An

important criterion for the spread of these access technologies is their avai

lability in as many offices and private households as possible. One of the

technologies is transfer by ADSL, which bridges the section of the network

that connects to the customer (“the last mile”) over standard copper wires.

ADSL can thus be used for broadband access to the Internet, for example.

ADSL technology (Asymmetric Digital Subscriber Line) uses three regions of

different sizes on the copper wire of a standard telephone line. Two regions

are used for data transmission and one for telephoning. The term 'Asymme

tric' indicates that the transmitting and receiving channels can carry different

quantities of data:

쎲 When the user surfs the Internet, the data sent to the Internet Service

Provider (ISP) tend to carry less information (e.g. addresses of web sites

or e-mails). The transmission rate of up to 1 Mbps is generally sufficient

for this purpose.

쎲 To load multimedia content (video sequences, animations, images etc.)

onto the computer from the Internet at acceptable quality and speed, a

transmission rate of up to 8 Mbps brings a significant saving in cost and

time.

Introduction

devolo MicroLink ADSL Modem Router

1.2 What does the MicroLink ADSL Modem Router

have to offer?

The following is an outline of the principal features of the device giving you

a quick overview of its capabilities.

Simple installation

쎲 Connect the MicroLink ADSL Modem Router to the power outlet

쎲 Connect the MicroLink ADSL Modem Router to the computers in your

LAN

쎲 Connect the MicroLink ADSL Modem Router to the ADSL line using the

ADSL cable

쎲 Configure Internet access using the setup wizard

쎲 Done!

ADSL operation

쎲 Access the Internet and use the telephone at the same time

쎲 No new wiring, because the existing telephone lines (copper wire) can

still be used

쎲 High transmission rates of up to 8 Mbps (download) or up to 1 Mbps

(upload)

Status display

The control lamps (LEDs) at the front of your device display the router status,

and provide status regarding the function of the data transmission.

Connection and installation

devolo MicroLink ADSL Modem Router

2 Connection and installation

This chapter explains the display and connections of the MicroLink ADSL

Modem Router and shows you how to set up the device and connect compu

ters as well as other network devices. Two network examples are illustrated

at the end of the chapter.

2.1 Display and connections

Power Power supply.

Link WAN connection; lit when a connection exists to the Internet

access device. Flashes during training.

Connect Lit when an active point-to-point connection exists.

Data Lit during data transfers.

Ports 1 ... 4 Connections for up to four computers or switches (hubs) in

LAN.

Link/Act Link = connection, Act = activity. Lit when a computer (or hub/

switch) is connected. Flashes during data transfers.

FD/Col FD = Full Duplex, Col = Collisions. Lit during full duplex opera-

tion. Flashes during data collisions.

10/100 10/100 = 10 or 100 Mbps. Lit when data transfer rate is 100

Mbps.

Button for manual reset. If this button is pressed for longer

than one second, all of the stored configuration data will be

deleted and the router will be restored to its factory defaults.

Connection and installation

devolo MicroLink ADSL Modem Router

2.2 Connecting the MicroLink ADSL Modem Router

Preconditions

To work with your MicroLink ADSL Modem Router, you need at least one

network cable with RJ45 plugs (also known as a patch cable) of the type UTP-

CAT5 (Unshielded Twisted Pair, Category 5) and a computer that meets the

following preconditions:

쎲 Network-enabled operating system with a Web browser, such as Win-

dows 98, Windows Me, Windows 2000, Windows XP, Linux, MAC OS X

쎲 Ethernet port (RJ45)

RJ11 socket for ADSL cable (at least UTP CAT3, preferably

UTP CAT5) to Internet access device.

RJ45 sockets for network cables (patch cables, at least UTP

CAT5) to connect computers in the LAN or additional

switches.

Connection for AC adapter.

Power switch.

Connection and installation

devolo MicroLink ADSL Modem Router

햲 Connect the device to an AC outlet using the AC adapter. Turn on the

power with the microswitch on the back. The blue 'Power' LED on the

front panel will light up.

햳 Connect the ADSL cable to the socket on your 'ADSL' router and to the

ADSL connection.

If necessary, connect your Internet service provider's ADSL connection device

to your telephone socket using a telephone connection cable. The 'ADSL Link'

LED will light up after several seconds.

햴 Next, use a network cable to connect a computer to one of the router's

RJ-45 sockets (e.g. '1') and start the computer. The 'Link/Act' LED will

light up

It is important to always start the router before the computers so that the

computers can receive their address configuration from the router while boo-

ting.

햵 You may also connect additional computers or switches to ports '2' to '4'

now or at a later date.

As each of the ports also functions as an uplink port, you may connect either

a computer or an additional switch (hub) to any of the 4 ports, should you

need to link more than 4 computers. Thanks to autosensing, you can use

either crossover or normal twisted-pair cables. A blue LED labeled 'Link/Act'

will be lit on the front panel for every computer or switch (hub) which is con

nected and powered up.

Connection and installation

devolo MicroLink ADSL Modem Router

2.3 Networking examples

햲 Networking of multiple workstations; Internet access via the MicroLink

ADSL Modem Router

햳 Linking of two subnetworks using a switch; Internet access via the Micro-

Link ADSL Modem Router

ADSL

MicroLink ADSL Modem Router

ADSL

MicroLink ADSL Modem Router

Switch

Router configuration

devolo MicroLink ADSL Modem Router

3 Router configuration

This chapter will explain how to set up Internet access and how to take

advantage of additional functions and settings of your router with advanced

configuration.

The configuration of the MicroLink ADSL Modem Router can be broken

down into the following steps:

쎲 Check and configure the DHCP parameters and a number of other settings

of the computers in the network

쎲 Set up Internet access

쎲 Configure additional router functions

We recommend using the setup wizard to configure the DHCP parameters

and set up Internet access. It will assist you with the most important settings

and make suggestions for the required configuration steps (

“Setting up Inter-

net access using the setup wizard” on page 12).

Alternatively, you may also set up Internet access using browser-based con-

figuration (“Setting up Internet access manually” on page 13).

The additional functions of the router must be set up manually using the

browser-based configuration (

“Advanced configuration” on page 14).

If you have switched the router's power off and back on, or reset the router

using the 'Factory Default' switch or settings dialogs, you must then also

restart all of the connected computers to update the TCP/IP information.

3.1 Setting up Internet access using the setup

wizard

If you are using a computer with a Windows operating system to configure

the router, you have the option of using the setup wizard.

햲 Put the enclosed devolo product CD in your CD-ROM drive. The 'devolo

MicroLink ADSL Modem Router' setup application will start automati

cally.

If it does not start automatically, run the file ’autorun.exe’ in the root folder

of the product CD.

햳 In the CD setup select 'Install MicroLink ADSL Modem Router'..

Router configuration

devolo MicroLink ADSL Modem Router

햴 The wizard will now install the selected devolo software on your com-

puter. When the installation is complete, the router configuration wizard

will automatically start. Initially, it will check your computer's DHCP set

tings and adjust them as necessary. Once this is complete, it will assist

you in setting up Internet access for the router.

햵 Finally, the wizard will contact the devolo website to ensure that Internet

access is working. If the Internet connection is working correctly, config

ure all other connected computers. Insert the devolo product CD in the

computers to be configured and install 'MicroLink ADSL Modem Router

Installation' as a minimum. The wizard will then check the settings of the

operating system and correct them as necessary, and will skip setting up

Internet access if so requested.

3.2 Setting up Internet access manually

You will also have the option of setting up the router manually if you cannot

use the setup wizard—if you are not using Windows as your operating sys

tem, for example.

The computer you are using to configure the MicroLink ADSL Modem

Router must be set up to receive DHCP information automatically. For further

information, please see the documentation of your operating system.

햲 Open your browser and enter the URL 'http://192.168.0.253'.

햳 Enter the default username and password 'admin' and 'password'.

햴 If you have not yet configured Internet access, a list will now be displayed

of the countries in which you can operate the MicroLink ADSL Modem

Router. Select your location from the country list and click Next

>>.

The sample provider list illustrated here is for Germany. Further provider lists

are available with providers relevant to other countries.

Router configuration

devolo MicroLink ADSL Modem Router

햵 Choose your ADSL provider from the list and confirm your choice by click-

ing Next.

If you are using an unlisted provider, select the entry ’Other provider (via T-

DSL)' and set up the connection manually.

햶 Enter your access information (username, password) and click Next.

Keep in mind that the settings you have configured only take effect if you con-

firm them under 'Save Settings' by clicking Save. This will restart the

MicroLink ADSL Modem Router.

햷 Finally, check whether the Internet connection works by entering a URL

such as www.devolo.com in your Web browser (e.g. Internet Explorer).

Once your Internet access is working correctly, set the remaining con

nected computers to automatically receive DHCP information. For further

information, please see the documentation of your operating system.

3.3 Advanced configuration

In this chapter, we will be guiding you through the advanced configuration of

the MicroLink ADSL Modem Router, explaining its functions and settings.

If you have any questions regarding the terms used here or the deployment

scenarios, please see at www.devolo.com.

Router configuration

devolo MicroLink ADSL Modem Router

Please note that using the setup wizard will delete all of the settings you

have made in the advanced configuration.

3.3.1 Description of the buttons

This section provides a brief description of the buttons used in the configura-

tion interface. Individual buttons related to specific configuration menus are

covered in the descriptions of the relevant menus.

All of your changes to the configuration will be temporarily saved on the indi-

vidual configuration pages. These changes do not affect the router immedia-

tely.

This button will take you to the next configuration page.

All of the changes you have made to the configuration on this page will be

reset to their original settings. These changes do not affect the router imme-

diately.

Keep in mind that the settings you have configured only take effect if you con-

firm them under 'Save Settings' by clicking Save.

3.3.2 Starting the advanced configuration

햲 Open your browser, enter the URL 'http://192.168.0.253', as well as the

default username and password 'admin' and 'password'.

햳 Click 'Advanced Configuration' and Next >>.

Router configuration

devolo MicroLink ADSL Modem Router

3.3.3 Main menu

Status

'Status' provides an overview of general settings.

The default language setting for the menus is based on the language version

of your web browser. In addition, the menu language (German/English) can

be toggled by clicking the corresponding flags found on the start page of the

configuration interface.

The MAC address (Media Access Control) is a serial number and unique. It is

programmed into the hardware and cannot be changed. The router has three

MAC addresses; one for the local cabled network (LAN) and one for the Inter

net (WAN). The MAC addresses for the LAN and WAN can be taken from the

configuration software.

Router configuration

devolo MicroLink ADSL Modem Router

Save Settings

Here you can save all of the settings you have changed.

Keep in mind that the settings you have configured only take effect if you con-

firm them under 'Save Settings' by clicking Save.

3.3.4 Setup

Admin Password

Specify the password here.

Select a new password to prevent unauthorized access to the configuration

of your router. Enter it into both fields. You also enter your old password.

The password must be at least 8 characters long. Should you ever forget your

password, you will need to press the 'Factory Default' button. However, this

will also delete all of your configuration data. You will then need to set up the

router again. The factory-default administrator password is 'password'. Save

your new password by clicking Submit.

Keep in mind that the settings you have configured only take effect if you con-

firm them under 'Save Settings' by clicking Save.

Please note that changing the administrator password will disable the setup

wizard. To use the setup wizard, restore the password to its default setting,

'password'.

Router configuration

devolo MicroLink ADSL Modem Router

LAN

Define the settings for the local network under 'LAN'.

쎲 'IP Address': By default the MicroLink ADSL Modem Router has the IP

address '192.168.0.253'. This address can be changed as required for

your local network.

Please note that changing the IP address will disable the setup wizard. The

setup wizard can only be used if the MicroLink ADSL Modem Router can

be reached at its default IP address of '192.186.0.253' with the subnet mask

'255.255.255.0'.

쎲 'Subnet Mask': The subnet mask is assigned with the IP address and spe-

cifies the address range. By default, the MicroLink ADSL Modem Rou-

ter has the subnet mask '255.255.255.0'. This address can be changed as

required for your local network.

쎲 'DHCP Server': Select 'Enabled' to enable the DHCP server and assign IP

addresses dynamically; select 'Disabled' to disable the DHCP server and

assign static IP and gateway addresses manually.

쑗 'DHCP address pool selection': Select 'System Allocated' to automa-

tically assign an IP address from your IP address pool; select 'User

Defined' to assign an IP address manually.

쑗 'User Defined Start Address': When working with a user-defined

DHCP address pool, enter the IP start address manually.

Router configuration

devolo MicroLink ADSL Modem Router

쑗 'User Defined End Address': When working with a user-defined DHCP

address pool, enter the IP end address manually.

쎲 'DHCP Relay': If this function is enabled, the router will serve as a relay

and forward DHCP queries to the DHCP server.

쑗 'DHCP Relay Target IP': Enter the IP address of the DHCP server here

if the router is to be used as a relay.

The router can always perform only one function, i.e. either as a server or

relay.

Please note that disabling the DHCP server will disable the setup wizard. The

setup wizard can only be used if the MicroLink ADSL Modem Router is set

up as the DHCP server for the LAN.

WAN

Wide-area network settings can be defined under 'WAN'. The configuration

corresponds to your Internet access settings.

If you set up your Internet access using the setup wizard, and only plan to exe-

cute standard applications with the MicroLink ADSL Modem Router, the

entries on this screen do not need to be modified manually. Most of the fun

ctions listed here, which are optimally and automatically configured by the

Router configuration

devolo MicroLink ADSL Modem Router

wizard, are provider-specific. For setting up your Internet access, please refer

“Setting up Internet access using the setup wizard” on page 12.

쎲 'PVC': A variety of PVCs can be set and configured individually under

Change Adapter.

Please note that your Internet provider must support multiple PVCs (perma-

nent virtual channels) for you to use this feature.

쎲 'VC' (Virtual Circuit): The current PVC can be enabled and disabled.

쎲 'Bridge': If this function is enabled, the selected PC can be linked to the

bridge.

쎲 'Encapsulation': Protocol selection list containing the usual provider pro-

tocols.

쎲 'ATM' is a connection-oriented data communications process.

Router configuration

devolo MicroLink ADSL Modem Router

쑗 'VPI', 'VCI' are data about your Internet connection, which you obtain

from your ISP.

쎲 'DHCP Client': WAN-side; can be enabled and disabled.

쑗 'Host Name': This is the name that the router sends the DHCP server

when making DHCP queries.

쎲 'MAC Spoofing': WAN-side 'MAC Address'; can be entered manually.

The MAC address (Media Access Control) is a serial number and unique. It is

programmed into the hardware and cannot be changed. The router has three

MAC addresses; one for the local cabled network (LAN) and one for the Inter

net (WAN). The MAC addresses for the LAN and WAN can be taken from the

configuration software.

쎲 'Static IP Settings': Whether you work with dynamic or static IP addres-

ses depends on your agreement with your ISP. Normally, IP addresses are

assigned dynamically, i.e. a new one is assigned each time you connect.

쑗 'IP Address', 'Gateway' and 'Subnet Mask' are data about your Inter-

net connection, which you obtain from your ISP.

쎲 'PPP' is a connection protocol.

쑗 'Service Name', 'User Name', 'Password' are data about your Internet

connection, which you obtain from your ISP.

쑗 'Disconnect Timeout': This function (default setting: '5') lets you set a

time limit so that you can control your connection charges and reduce

costs based on time. If the router does not receive any data packets

for the amount of time specified by the idle time setting, it automati

cally disconnects from the Internet server. As soon as it receives a

request to connect after disconnecting automatically, it automatically

reestablishes a connection (if you have enabled the option 'Recon

nect on Internet access').

The 'Timeout Configuration' link will take you directly to the 'PPP Disconnect

Timeout'. For more information go to the section “Advanced configuration”

on page 14.

In the interests of cost control, ensure that you do not have Internet services

such as e-mail clients, file sharing services or news tickers enabled in your

local network, as these will periodically access the Internet. If you have flat-

rate service from your Internet provider (unlimited online time without addi

tional charges), you obviously do not have to worry about such "inadvertent”

connections to the Internet.

Router configuration

devolo MicroLink ADSL Modem Router

쑗 'MRU': Maximum Receive Unit; maximum size for incoming packets

쑗 'MTU': Maximum Transmit Unit; maximum size for outgoing packets

쑗 'MSS': Maximum Segment Size; maximum payload for TCP packets

쑗 'Authentication': desired authentication method

쑗 'Reconnect on connection loss': Internet providers generally interrupt

the connection every 24 hours, resulting in a new IP address being

assigned to the router. The MicroLink ADSL Modem Router can

automatically reestablish the connection in such cases.

The 'Reconnect on connection loss' function is disabled by default.

쑗 'Reconnect on Internet access': If you check this function, an Internet

connection is automatically established whenever an application

tries to send a data packet to the Internet.

The 'Reconnect on Internet access' function is enabled by default.

Router configuration

devolo MicroLink ADSL Modem Router

Miscellaneous

쎲 'HTTP server access': Controls access to the configuration pages:

쑗 'All': If this function is enabled, the configuration pages will be acces-

sible from both the WAN and the LAN.

쑗 'Restricted/LAN': If this function is enabled, the configuration pages

will be accessible from the LAN only.

쑗 'Restricted/WAN': If this function is enabled, the configuration pages

will be accessible from the WAN only. In this case, also enter the

'WAN Specify IP' and the 'Subnet Mask'.

쎲 'HTTP server port': The HTTP server port is set to '80' by default.

Router configuration

devolo MicroLink ADSL Modem Router

Permitting WAN-side access to the configuration pages is a major security

risk.

쎲 'FTP server': here you can switch the FTP server on and off.

The 'Disable WAN side FTP access' function is enabled by default.

쎲 'DMZ' (Demilitarized Zone): This function is a DMZ host. A DMZ host is a

computer (server) running all Internet services such as Web, e-mail, FTP

and game servers and is therefore directly connected to the Internet.

쎲 'DMZ Host IP': IP address of the DMZ host

Be aware of the security risks of setting up a computer in your local network

as a DMZ host, as it can be misused for intrusion attempts from the Internet.

쎲 'PPP reconnect on Internet access': If you check this function, an Internet

connection is automatically established whenever an application tries to

send a data packet to the Internet.

쎲 'PPP connect on ADSL link': If this function is enabled, an Internet connec-

tion will be established anytime a physical ADSL connection is available.

쎲 'Time Zone': Select your time zone here.

쎲 'Daylight Saving Time': Select standard or daylight savings time here.

쎲 'User defined time server': IP address of the time server.

Router configuration

devolo MicroLink ADSL Modem Router

3.3.5 Status

ADSL

Detailed information on the ADSL line is available under 'ADSL'.

Router configuration

devolo MicroLink ADSL Modem Router

PPP

Current protocol data is available under 'PPP'.

쎲 'Connection': Choice of configured Internet connection(s):

쑗 'Connect/Disconnect': Click Execute to manually select ('Connect') a

specific Internet connection or manually deselect it ('Disconnect').

Router configuration

devolo MicroLink ADSL Modem Router

3.3.6 Tools

System Log

Under 'System Log', there is a log file which records the activities of your rou-

ter. The log file can also be saved as a text file on any connected computer.

쎲 'Clear Log': Select 'Clear Log' when all entries in the log are to be deleted.

쎲 'Log Messages':

쑗 'All': Select 'All' to display all entries in the log file.

쑗 'Events': Select 'Events' to display only events in the log file.

쑗 'Warnings': Select 'Warnings' to display only warnings in the log file.

Confirm your entries by clicking on Submit.

Reboot

Use 'Reboot' to restart the router from the configuration interface (rather than

the power switch on the router itself) without saving your settings.

Router configuration

devolo MicroLink ADSL Modem Router

Reset to Factory Default

To reset the router to its factory defaults, select 'Reset to Factory Default' and

confirm your choice with the Reset button, or press and hold the 'Factory

Default' button on the rear panel of the MicroLink ADSL Modem Router

briefly. This will restart the MicroLink ADSL Modem Router. Next, restart

all of the connected computers.

The reset will discard your current settings, making it necessary to reconfi-

gure the router.

Firmware Update

Once you have downloaded the new firmware from the Internet, open the

menu of the MicroLink ADSL Modem Router, select 'Tools' and 'Firmware

Update', and click Prepare update. The MicroLink ADSL Modem Router

will now start in a special mode. Select Browse to locate the new firmware.

Router configuration

devolo MicroLink ADSL Modem Router

Next, click Upload to load the firmware or Cancel to interrupt the process.

The router will restart automatically when the firmware update is complete.

The router switches into a special mode during firmware uploads; the ADSL

module is disabled in this mode, for example. Configuration functions and

Internet access are also disabled during this process. The router will remain

in this mode—even if the power is switched off—until the new firmware has

been successfully loaded or the update process canceled.

When the firmware update is complete, it is necessary to reset the router to

its factory defaults by pressing the button on the rear panel of the device.

When the router restarts, the 'Connect' LED will be lit for around 1 minute. Do

not interrupt this process! Switching the MicroLink ADSL Modem Router

off during this time can irreparably damage the router's firmware.

Router configuration

devolo MicroLink ADSL Modem Router

3.3.7 Advanced

These functions are advanced functions which have been preset for optimal

use. Normally, it is not necessary to modify these settings.

Virtual Server

You can use 'Virtual Server' to activate (via IP address) a certain service (spe-

cified by port number) for specific local computers for direct access from the

Internet (e.g. for web, FTP or e-mail servers). If you want to use this option,

dynamic IP address assignment must be disabled on the particular computer,

and a static IP address assigned.

쎲 'Port Start': Enter the WAN port number for the service, e.g. port 25 for e-

mail.

쎲 'Port End': Enter the WAN port number for the service, e.g. port 25 for e-

mail.

쎲 'Private Port Start': Enter the LAN port number for the service.

The port number in the LAN may differ from that in the WAN, i.e. within your

local network, you can assign port numbers that are different to conventional

WAN numbers. In such cases, the router simply diverts the service to the

relevant port.

쎲 'Port Type': This is where you select the appropriate protocol, e.g. 'TCP'.

쎲 'Host IP Address': This is where you enter the IP address of your local

server, e.g. 192.168.0.249.

Confirm your entries by clicking on Add.

DDNS

The Dynamic Domain Name System is an extension to DNS and controls the

assignment of dynamic IP addresses for fixed host names (i.e. computer

Router configuration

devolo MicroLink ADSL Modem Router

names). New IP numbers as assigned by the ISP are automatically forwarded

to the DDNS provider so that a plain-text name (e.g. www.devolo.com) is

constantly available despite the varying IP address.

쎲 'Dynamic DNS Enabled': This is where you activate the DDNS function.

쑗 'DDNS Server': Host name of the DDNS server.

쑗 'Update Type': The is where you select the various DNS products

'static', 'dyndns' and 'custom'.

More information is available from www.dyndns.org.

쑗 'Username': This is where you enter the user name given to you by

your DDNS provider.

쑗 'Password': This is where you enter the password given to you by your

DDNS provider.

쑗 'Host Name ...': Under host name 0 to 4 you enter each of the fixed

computer names (e.g. www.example.dyndns.org).

Route Table

If there are multiple routers on your network, it is useful to set presets for the

routing. The 'Route Table' contains the current routing data. The gateway

Router configuration

devolo MicroLink ADSL Modem Router

associated with the IP address ranges is also stored here. These settings can

be modified while the WAN connection is active.

쎲 'System Default Gateway Configuration':

쑗 'None': The router does not use a default gateway.

쑗 'Auto': The router selects the gateway automatically.

쑗 'Interface': The default gateway can be entered manually.

쑗 'IP Address': IP address of the gateway (or router).

쎲 'Manually Configured Routes':

쑗 'Destination': IP address of the destination network.

쑗 'Netmask' of the destination network.

Router configuration

devolo MicroLink ADSL Modem Router

쑗 'Gateway': 'IP Address' of the next router over which the destination

network can be reached.

쑗 'Interface' is the interface over which the target network can be rea-

ched.

PPP Disconnect Timeout

Use 'PPP Disconnect Timeout' to define filters for the idle time. These filters

can be used to accept or discard certain data packets.

The idle time function (default setting: '5') lets you set a time limit so that you

can control your connection charges and reduce costs based on time. If the

router does not receive any admitted data packets for the amount of time spe

cified by the idle time setting, it automatically disconnects from the Internet

server. As soon as it receives a request to connect after disconnecting auto

Router configuration

devolo MicroLink ADSL Modem Router

matically, it automatically reestablishes a connection (if you have enabled

the option 'Reconnect on Internet access').

쎲 'Enable/Disable Idle Time Filter':

쑗 If the 'All traffic will reset Idle Timer (ignore filter below)' option is

enabled, no filters will be applied when establishing the Internet

connection.

쑗 If the 'Only filtered traffic will reset Idle Timer (use filter below)'

option is enabled, the configured filters will be applied when esta

blishing the Internet connection.

쎲 'Apply Filter To': Specify the data to be filtered here.

Router configuration

devolo MicroLink ADSL Modem Router

쑗 'Inbound Traffic Only'

쑗 'Outbound Traffic Only' or

쑗 'Inbound and Outbound Traffic'.

쎲 'Filter Details': Define the filters at the protocol level here by specifying

a protocol and a port. Select the appropriate 'Action' to add or remove a

protocol. The following protocols have been preset:

쑗 TCP protocol with number 6

쑗 UDP protocol with number 17

쑗 ICMP protocol with number 1

The default setting for the idle time filters (see illustration) is optimal for most

applications. Please note: By permitting incoming data, your configured idle

time will virtually never elapse due to random incoming data packets. If you

have flat-rate service from your Internet provider (unlimited online time

without additional charges), you obviously do not have to worry about such

"inadvertent” connections to the Internet. However, if your Internet connec

tion is billed by connection time, we recommend keeping the default setting

for the idle time filter.

DNS Proxy

The Domain Name Service protocol converts Internet names (also called URL

addresses, e.g. www.british-telecom.co.uk) into IP addresses (e.g.

212.184.6.56).

쎲 'DNS Proxy': Select 'Enabled' to use the DHCP proxy.

쎲 Select 'Auto Discovery' to use the DNS addresses provided when esta-

blishing the Internet connection.

Router configuration

devolo MicroLink ADSL Modem Router

쎲 Select 'User Configuration' to use DNS addresses you have entered

manually.

쑗 'DNS Server IP': When specifying settings, enter the IP address(es) of

your Internet provider's DNS server(s) in the 'DNS Server' field, click

'Add' and confirm with Submit.

ADSL configuration

Settings for the ADSL protocols can be defined under 'ADSL configuration'.

쎲 'User Selected Annex Mode': Annex A or Annex B, depending on the stan-

dard of your ADSL provider.

쎲 'Trellis': the trellis process subtracts transmitted data from the signal mix

for echo cancellation and filters out received information. This complex

process improves the signal-to-noise ratio of the connection for an

enhanced data rate. Support by your ADSL carrier is required in order to

take advantage of the trellis process.

쎲 'Handshake Protocol': communication protocol that governs data flow

between the computer and router.

쎲 'Wiring Selection': connection type of the ADSL cable.

쎲 'Bit Swapping': bit swapping refers to the adaptation of bit distribution in

the various subchannels (sub-carriers) during ongoing operation. The

communication speed is adjusted to match the performance of the chan

nel without interrupting the data flow. The number of bits varies accord-

ing to the intensity of the signal and noise.

For further information, please visit our website at www.devolo.com or refer

to the included devolo product CD.

Appendix

devolo MicroLink ADSL Modem Router

4 Appendix

4.1 Performance data and specifications

MicroLink ADSL Modem Router

LAN standards Ethernet specification IEEE 802.3

Fast-Ethernet specification IEE 802.3u

Full duplex specification IEEE 802.3x

ADSL standard ADSL over ISDN ITU G.992.1 (G.dmt, Annex B)

Telekom specification (U-R2)

ADSL over POTS ANSI T1.413 Issue 2

ITU G.992.1 (G.dmt, Annex A)

ITU G.992.2 (G.lite)

Transfer throughput Download up to 8 Mbps, Upload up to 1 Mbps

Diagnostics support ADSL status table

PPP status table

System log table

Routing table

Ports 4 LAN with Auto MDI-X (LAN ports can also be used as uplink

ports)

1 ADSL connection

WAN connection Connection type: RJ 11

LEDs Power

4x3 status LEDs for Ethernet ports and uplink ports

3 WAN status

Computer interface RJ45

Protocols PPP over Ethernet (RFC 2516)

PPP over ATM (RFC 2364)

IP over ATM: Bridged Ethernet/Routed IP (RFC 2225/2684)

Classical IP over ATM (RFC 1577)

ATM AAL 5

Supports VPN Pass-Through (PPTP)

System requirements Computer with network-enabled operating system with a Web

browser, such as Windows 98, Windows Me, Windows 2000,

Windows XP, Linux, MAC OS X and an Ethernet port (RJ45)

For Internet access: ADSL connection from by Internet access

provider

Power supply 9 V AC/800 mA adapter

Appendix

devolo MicroLink ADSL Modem Router

4.2 Care and maintenance of the device

There are no user-serviceable parts inside the case. Do not open the case.

Clean the unit by wiping dirt from the case using an eyeglasses cleaning cloth

or other soft cloth. Never use water, paint thinner, benzene, alcohol or other

strong cleaning agents when cleaning the MicroLink ADSL Modem Router, as

these could damage the case.

4.3 CE conformity

The product conforms to the basic requirements of Directive 1999/5/EC

(R&TTE) and the other relevant provisions of the FTEG (Radio and Telecom-

munications Terminal Equipment Act), and is designed for use in the EU and

Switzerland.

This product is class A equipment. This equipment may cause interference

with radio waves in home use; if this occurs the operator may be required to

take corrective action.

Ambient conditions 0–40°C, 10–90% humidity (non-condensing)

CE conformity CE conformity in accordance with the technical requirements

for all EU countries and Switzerland

EN60950

EN55022

EN55024

Warranty 3 years

MicroLink ADSL Modem Router

Appendix

devolo MicroLink ADSL Modem Router

4.4 Declaration of conformity

KONFORMITÄTSERKLÄRUNG

gemäß dem Gesetz über Funkanlagen und Telekommunikationsendeinrichtungen (FTEG) und der

Richtlinie 1999/5/EG (R&TTE)

EC DECLARATION OF CONFORMITY

appropriate to the law of radio and telecom terminalequipment and Directive 1999/5/EC (R&TTE)

Die Firma: devolo AG

The Company: Sonnenweg 11

52070 Aachen

erklärt, dass das Produkt: MicroLink

ADSL Modem Router

declares that the product:

Verwendungszweck: ADSL-zu-Ethernet-Router

Intended purpose: ADSL-to-Ethernet router

den grundlegenden Anforderungen des § 3 und den übrigen einschlägigen Bestimmungen des FTEG

(Artikel 3 der R&TTE) entspricht.

complies with the appropriate essential requirements of the FTEG (Article 3 of R&TTE) and the other relevant provisions.

Harmonisierte Normen: Gesundheit und Sicherheit gemäß §3 (1) 1. (Artikel 3 (1) a))

Harmonised standards: Health and safety requirements contained in §3 (1) 1. (Article 3 (1) a))

EN 60 950: 1992 +A1: 1993 +A2: 1993 +A3: 1995 +A4: 1997 +A11: 1997

Harmonisierte Normen: Schutzanforderungen in Bezug auf die EMV §3 (1) 2, (Artikel 3 (1) b)

Harmonised standards: Protection requirements with respect to EMC §3 (1) 2, (Article 3 (1) b)

EN 55 022: 1998 Class B +A1: 2000

EN 55 024: 1998

Diese Erklärung wird verantwortlich abgegeben durch:

This declaration is submitted by:

Aachen, 26. September 2002

Aachen, 26

September 2002

Heiko Harbers

Vorstandsvorsitzender

CEO

Appendix

devolo MicroLink ADSL Modem Router

4.5 Warranty conditions

The devolo AG warranty is given to purchasers of devolo products in addition to the warranty

conditions provided by law and in accordance with the following conditions:

1 Warranty coverage

a) The warranty covers the equipment delivered and all its parts. Parts will, at devolo's sole

discretion, be replaced or repaired free of charge if, despite proven proper handling and ad

herence to the operating instructions, these parts became defective due to fabrication and/

or material defects. Alternatively, devolo reserves the right to replace the defective product

with a comparable product with the same specifications and features. Operating manuals

and possibly supplied software are excluded from the warranty.

b) Material and service charges shall be covered by devolo, but not shipping and handling

costs involved in transport from the buyer to the service station and/or to devolo.

c) Replaced parts become property of devolo.

d) devolo is authorized to carry out technical changes (e.g. firmware updates) beyond repair

and replacement of defective parts in order to bring the equipment up to the current tech

nical state. This does not result in any additional charge for the customer. A legal claim to

this service does not exist.

2 Warranty period

The warranty period for this devolo product is three years. This period begins at the day of deliv-

ery from the devolo dealer. Warranty services carried out by devolo do not result in an extension

of the warranty period nor do they initiate a new warranty period. The warranty period for in

stalled replacement parts ends with the warranty period of the device as a whole.

3 Warranty procedure

a) If defects appear during the warranty period, the warranty claims must be made immedi-

ately, at the latest within a period of 7 days.

b) In the case of any externally visible damage arising from transport (e.g. damage to the hous-

ing), the person carrying out the transportation and the sender should be informed immedi-

ately. On discovery of damage which is not externally visible, the transport company and

the sender are to be immediately informed in writing, at the latest within 3 days of delivery.

c) Transport to and from the location where the warranty claim is accepted and/or the repaired

device is exchanged, is at the purchaser's own risk and cost.

d) Warranty claims are only valid if a copy of the original purchase receipt is returned with the

device. devolo reserves the right to require the submission of the original purchase receipt.

4 Suspension of the warranty

All warranty claims will be deemed invalid

a) if the label with the serial number has been removed from the device,

b) if the device is damaged or destroyed as a result of acts of nature or by environmental in-

fluences (moisture, electric shock, dust, etc.),

c) if the device was stored or operated under conditions not in compliance with the technical

specifications,

d) if the damage occurred due to incorrect handling, especially to non-observance of the sys-

tem description and the operating instructions,

e) if the device was opened, repaired or modified by persons not contracted by devolo,

Appendix

devolo MicroLink ADSL Modem Router

f) if the device shows any kind of mechanical damage, or

g) if the warranty claim has not been reported in accordance with 3a) or 3b).

5 Operating mistakes

If it becomes apparent that the reported malfunction of the device has been caused by unsuitable

hardware, software, installation or operation, devolo reserves the right to charge the purchaser

for the resulting testing costs.

6 Additional regulations

a) The above conditions define the complete scope of devolo's legal liability.

b) The warranty gives no entitlement to additional claims, such as any refund in full or in part.

Compensation claims, regardless of the legal basis, are excluded. This does not apply if e.g.

injury to persons or damage to private property are specifically covered by the product lia

bility law, or in cases of intentional act or culpable negligence.

c) Claims for compensation of lost profits, indirect or consequential detriments, are excluded.

d) devolo is not liable for lost data or retrieval of lost data in cases of slight and ordinary neg-

ligence.

e) In the case that the intentional or culpable negligence of devolo employees has caused a

loss of data, devolo will be liable for those costs typical to the recovery of data where pe

riodic security data back-ups have been made.

f) The warranty is valid only for the first purchaser and is not transferable.

g) The court of jurisdiction is located in Aachen, Germany in the case that the purchaser is a

merchant. If the purchaser does not have a court of jurisdiction in the Federal Republic of

Germany or if he moves his domicile out of Germany after conclusion of the contract, devo

lo's court of jurisdiction applies. This is also applicable if the purchaser's domicile is not

known at the time of institution of proceedings.

h) The law of the Federal Republic of Germany is applicable. The UN commercial law does not

apply to dealings between devolo and the purchaser.

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