DSL-302T
ADSL Modem
User’s Manual
2
nd
Edition (October 2004)
651DSL302T02
DSL-302T DSL Modem User’s Guide
FCC Warning
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.
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 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 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.
CE Mark Warning
This is a Class B product. In a domestic environment, this product may cause radio interference in which case
the user may be required to take adequate measures.
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DSL-302T ADSL Modem User’s Guide
Warranty and Registration for all Countries and
Regions Except USA
Wichtige Sicherheitshinweise
1.
Bitte lesen Sie sich diese Hinweise sorgfä ltig durch.
2.
Heben Sie diese Anleitung für den spä tern Gebrauch auf.
3.
Vor jedem Reinigen ist das Gerä t vom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder Aerosolreiniger. Am besten
dient ein angefeuchtetes Tuch zur Reinigung.
4.
Um eine Beschä digung des Gerä tes zu vermeiden sollten Sie nur Zubehörteile verwenden, die vom Hersteller zugelassen sind.
5.
Das Gerä t is vor Feuchtigkeit zu schützen.
6.
Bei der Aufstellung des Gerä tes ist auf sichern Stand zu achten. Ein Kippen oder Fallen könnte Verletzungen hervorrufen.
Verwenden Sie nur sichere Standorte und beachten Sie die Aufstellhinweise des Herstellers.
7.
Die Belüftungsöffnungen dienen zur Luftzirkulation die das Gerä t vor Ü berhitzung schützt.
Ö ffnungen nicht abgedeckt werden.
8.
Beachten Sie beim Anschluß an das Stromnetz die Anschluß werte.
9.
Die Netzanschluß steckdose muß aus Gründen der elektrischen Sicherheit einen Schutzleiterkontakt haben.
10.
Verlegen Sie die Netzanschluß leitung so, daß niemand darüber fallen kann. Es sollete auch nichts auf der Leitung abgestellt
werden.
11.
Alle Hinweise und Warnungen die sich am Gerä ten befinden sind zu beachten.
12.
Wird das Gerä t über einen lä ngeren Zeitraum nicht benutzt, sollten Sie es vom Stromnetz trennen.
Ü berspannung eine Beschä digung vermieden.
13.
Durch die Lüftungsöffnungen dürfen niemals Gegenstä nde oder Flüssigkeiten in das Gerä t gelangen.
Brand bzw. Elektrischen Schlag auslösen.
14.
Ö ffnen Sie niemals das Gerä t.
Servicepersonal geöffnet werden.
15.
Wenn folgende Situationen auftreten ist das Gerä t vom Stromnetz zu trennen und von einer qualifizierten Servicestelle zu
überprüfen:
Sorgen Sie dafür, daß diese
Somit wird im Falle einer
Dies könnte einen
Das Gerä t darf aus Gründen der elektrischen Sicherheit nur von authorisiertem
a.
Netzkabel oder Netzstecker sint beschä digt.
b.
Flüssigkeit ist in das Gerä t eingedrungen.
c.
Das Gerä t war Feuchtigkeit ausgesetzt.
d.
Wenn das Gerä t nicht der Bedienungsanleitung ensprechend funktioniert oder Sie mit Hilfe dieser Anleitung
keine Verbesserung erzielen.
e.
Das Gerä t ist gefallen und/oder das Gehä use ist beschä digt.
f.
Wenn das Gerä t deutliche Anzeichen eines Defektes aufweist.
16.
Bei Reparaturen dürfen nur Orginalersatzteile bzw. den Orginalteilen entsprechende Teile verwendet werden. Der Einsatz von
ungeeigneten Ersatzteilen kann eine weitere Beschä digung hervorrufen.
17.
Wenden Sie sich mit allen Fragen die Service und Repartur betreffen an Ihren Servicepartner.
Betriebssicherheit des Gerä tes sicher.
18.
Zum Netzanschluß dieses Gerä tes ist eine geprüfte Leitung zu verwenden, Für einen Nennstrom bis 6A und einem
Gerä tegewicht grő ß er 3kg ist eine Leitung nicht leichter als H05VV-F, 3G, 0.75mm2 einzusetzen.
Somit stellen Sie die
WARRANTIES EXCLUSIVE
IF THE D-LINK PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, THE CUSTOMER'S SOLE REMEDY SHALL BE, AT DLINK'S OPTION, REPAIR OR REPLACEMENT. THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN
LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR
OTHERWISE, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. D-LINK NEITHER
ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE,
INSTALLATION MAINTENANCE OR USE OF D-LINK'S PRODUCTS.
D-LINK SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED
DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY THE CUSTOMER'S OR ANY THIRD PERSON'S MISUSE,
NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR, OR ANY OTHER CAUSE BEYOND
THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING OR OTHER HAZARD.
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DSL-302T DSL Modem User’s Guide
LIMITATION OF LIABILITY
IN NO EVENT WILL D-LINK BE LIABLE FOR ANY DAMAGES, INCLUDING LOSS OF DATA, LOSS OF PROFITS, COST OF COVER
OR OTHER INCIDENTAL, CONSEQUENTIAL OR INDIRECT DAMAGES ARISING OUT THE INSTALLATION, MAINTENANCE, USE,
PERFORMANCE, FAILURE OR INTERRUPTION OF A D- LINK PRODUCT, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY.
THIS LIMITATION WILL APPLY EVEN IF D-LINK HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
IF YOU PURCHASED A D-LINK PRODUCT IN THE UNITED STATES, SOME STATES DO NOT ALLOW THE LIMITATION OR
EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION MAY NOT APPLY TO
YOU.
Limited Warranty
Hardware:
D-Link warrants each of its hardware products to be free from defects in workmanship and materials under normal use and service
for a period commencing on the date of purchase from D-Link or its Authorized Reseller and extending for the length of time
stipulated by the Authorized Reseller or D-Link Branch Office nearest to the place of purchase.
This Warranty applies on the condition that the product Registration Card is filled out and returned to a D-Link office within ninety
(90) days of purchase. A list of D-Link offices is provided at the back of this manual, together with a copy of the Registration Card.
If the product proves defective within the applicable warranty period, D-Link will provide repair or replacement of the product.
D-Link shall have the sole discretion whether to repair or replace, and replacement product may be new or reconditioned.
Replacement product shall be of equivalent or better specifications, relative to the defective product, but need not be identical. Any
product or part repaired by D-Link pursuant to this warranty shall have a warranty period of not less than 90 days, from date of
such repair, irrespective of any earlier expiration of original warranty period. When D-Link provides replacement, then the defective
product becomes the property of D-Link.
Warranty service may be obtained by contacting a D-Link office within the applicable warranty period, and requesting a Return
Material Authorization (RMA) number. If a Registration Card for the product in question has not been returned to D-Link, then a
proof of purchase (such as a copy of the dated purchase invoice) must be provided. If Purchaser's circumstances require special
handling of warranty correction, then at the time of requesting RMA number, Purchaser may also propose special procedure as may
be suitable to the case.
After an RMA number is issued, the defective product must be packaged securely in the original or other suitable shipping package
to ensure that it will not be damaged in transit, and the RMA number must be prominently marked on the outside of the package.
The package must be mailed or otherwise shipped to D-Link with all costs of mailing/shipping/insurance prepaid. D-Link shall
never be responsible for any software, firmware, information, or memory data of Purchaser contained in, stored on, or integrated
with any product returned to D-Link pursuant to this warranty.
Any package returned to D-Link without an RMA number will be rejected and shipped back to Purchaser at Purchaser's expense,
and D-Link reserves the right in such a case to levy a reasonable handling charge in addition mailing or shipping costs.
Software:
Warranty service for software products may be obtained by contacting a D-Link office within the applicable warranty period. A list
of D-Link offices is provided at the back of this manual, together with a copy of the Registration Card. If a Registration Card for the
product in question has not been returned to a D-Link office, then a proof of purchase (such as a copy of the dated purchase invoice)
must be provided when requesting warranty service. The term "purchase" in this software warranty refers to the purchase
transaction and resulting license to use such software.
D-Link warrants that its software products will perform in substantial conformance with the applicable product documentation
provided by D-Link with such software product, for a period of ninety (90) days from the date of purchase from D-Link or its
Authorized Reseller. D-Link warrants the magnetic media, on which D-Link provides its software product, against failure during
the same warranty period. This warranty applies to purchased software, and to replacement software provided by D-Link pursuant
to this warranty, but shall not apply to any update or replacement which may be provided for download via the Internet, or to any
update which may otherwise be provided free of charge.
D-Link's sole obligation under this software warranty shall be to replace any defective software product with product which
substantially conforms to D-Link's applicable product documentation. Purchaser assumes responsibility for the selection of
appropriate application and system/platform software and associated reference materials. D-Link makes no warranty that its
software products will work in combination with any hardware, or any application or system/platform software product provided by
any third party, excepting only such products as are expressly represented, in D-Link's applicable product documentation as being
compatible. D-Link's obligation under this warranty shall be a reasonable effort to provide compatibility, but D-Link shall have no
obligation to provide compatibility when there is fault in the third-party hardware or software. D-Link makes no warranty that
operation of its software products will be uninterrupted or absolutely error-free, and no warranty that all defects in the software
product, within or without the scope of D-Link's applicable product documentation, will be corrected.
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DSL-302T ADSL Modem User’s Guide
Warranty and Registration Information for USA Only
Subject to the terms and conditions set forth herein, D-Link Systems, Inc. (“D-Link”) provides this Limited warranty for its product
only to the person or entity that originally purchased the product from:
l
D-Link or its authorized reseller or distributor and
l
Products purchased and delivered within the fifty states of the United States, the District of Columbia, U.S. Possessions
or Protectorates, and U.S. Military Installations, addresses with an APO or FPO.
Limited Warranty: D-Link warrants that the hardware portion of the D-Link products described below will be free from material
defects in workmanship and materials from the date of original retail purchase of the product, for the period set forth below
applicable to the product type (“Warranty Period”), except as otherwise stated herein.
5-Year Limited Warranty for the Product(s) is defined as follows:
l
Hardware (excluding power supplies and fans) Five (5) Years
l
Power Supplies and Fans Three (3) Year
l
Spare parts and spare kits Ninety (90) days
D-Link’s sole obligation shall be to repair or replace the defective Hardware during the Warranty Period at no charge to the original
owner or to refund at D-Link’s sole discretion. Such repair or replacement will be rendered by D-Link at an Authorized D-Link
Service Office. The replacement Hardware need not be new or have an identical make, model or part. D-Link may in its sole
discretion replace the defective Hardware (or any part thereof) with any reconditioned product that D-Link reasonably determines is
substantially equivalent (or superior) in all material respects to the defective Hardware. Repaired or replacement Hardware will be
warranted for the remainder of the original Warranty Period from the date of original retail purchase. If a material defect is
incapable of correction, or if D-Link determines in its sole discretion that it is not practical to repair or replace the defective
Hardware, the price paid by the original purchaser for the defective Hardware will be refunded by D-Link upon return to D-Link of
the defective Hardware. All Hardware (or part thereof) that is replaced by D-Link, or for which the purchase price is refunded, shall
become the property of D-Link upon replacement or refund.
Limited Software Warranty: D-Link warrants that the software portion of the product (“Software”) will substantially conform to
D-Link’s then current functional specifications for the Software, as set forth in the applicable documentation, from the date of
original retail purchase of the Software for a period of ninety (90) days (“Warranty Period”), provided that the Software is properly
installed on approved hardware and operated as contemplated in its documentation. D-Link further warrants that, during the
Warranty Period, the magnetic media on which D-Link delivers the Software will be free of physical defects. D-Link’s sole obligation
shall be to replace the non-conforming Software (or defective media) with software that substantially conforms to D-Link’s
functional specifications for the Software or to refund at D-Link’s sole discretion. Except as otherwise agreed by D-Link in writing,
the replacement Software is provided only to the original licensee, and is subject to the terms and conditions of the license granted
by D-Link for the Software. Software will be warranted for the remainder of the original Warranty Period from the date or original
retail purchase. If a material non-conformance is incapable of correction, or if D-Link determines in its sole discretion that it is not
practical to replace the non-conforming Software, the price paid by the original licensee for the non-conforming Software will be
refunded by D-Link; provided that the non-conforming Software (and all copies thereof) is first returned to D-Link. The license
granted respecting any Software for which a refund is given automatically terminates.
Non-Applicability of Warranty: The Limited Warranty provided hereunder for hardware and software of D-Link's products, will
not be applied to and does not cover any product purchased through the inventory clearance or liquidation sale or other sales in
which D-Link, the sellers, or the liquidators expressly disclaim their warranty obligation pertaining to the product and in that case,
the product is being sold "As-Is" without any warranty whatsoever including, without limitation, the Limited Warranty as described
herein, notwithstanding anything stated herein to the contrary.
Submitting A Claim: Any claim under this limited warranty must be submitted in writing before the end of the Warranty Period to
an Authorized D-Link Service Office.
l
The customer must submit as part of the claim a written description of the Hardware defect or Software nonconformance
in sufficient detail to allow D-Link to confirm the same.
l
The original product owner must obtain a Return Material Authorization (“RMA”) number from the Authorized D-Link
Service Office and, if requested, provide written proof of purchase of the product (such as a copy of the dated purchase
invoice for the product) before the warranty service is provided.
l
After an RMA number is issued, the defective product must be packaged securely in the original or other suitable
shipping package to ensure that it will not be damaged in transit, and the RMA number must be prominently marked on
the outside of the package. Do not include any manuals or accessories in the shipping package. D-Link will only replace
the defective portion of the Product and will not ship back any accessories.
l
The customer is responsible for all shipping charges to D-Link. No Charge on Delivery (“COD”) is allowed. Products sent
COD will either be rejected by D-Link or become the property of D-Link. Products should be fully insured by the
customer and shipped to D-Link Systems, Inc., 17575 Mt. Herrmann, Fountain Valley, CA 92708. D-Link will not be
held responsible for any packages that are lost in transit to D-Link. The repaired or replaced packages will be shipped
via UPS Ground or any common carrier selected by D-Link, with shipping charges prepaid. Expedited shipping is
available if shipping charges are prepaid by the customer.
D-Link may reject or return any product that is not packaged and shipped in strict compliance with the foregoing requirements, or
for which an RMA number is not visible from the outside of the package. The product owner agrees to pay D-Link’s reasonable
handling and return shipping charges for any product that is not packaged and shipped in accordance with the foregoing
requirements, or that is determined by D-Link not to be defective or non-conforming.
What Is Not Covered: This limited warranty provided by D-Link does not cover: Products, if in D-Link’s judgment, have been
subjected to abuse, accident, alteration, modification, tampering, negligence, misuse, faulty installation, lack of reasonable care,
repair or service in any way that is not contemplated in the documentation for the product, or if the model or serial number has
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DSL-302T DSL Modem User’s Guide
been altered, tampered with, defaced or removed; Initial installation, installation and removal of the product for repair, and shipping
costs; Operational adjustments covered in the operating manual for the product, and normal maintenance; Damage that occurs in
shipment, due to act of God, failures due to power surge, and cosmetic damage; Any hardware, software, firmware or other
products or services provided by anyone other than D-Link; Products that have been purchased from inventory clearance or
liquidation sales or other sales in which D-Link, the sellers, or the liquidators expressly disclaim their warranty obligation
pertaining to the product. Repair by anyone other than D-Link or an Authorized D-Link Service Office will void this Warranty.
Disclaimer of Other Warranties: EXCEPT FOR THE LIMITED WARRANTY SPECIFIED HEREIN, THE PRODUCT IS PROVIDED
“AS-IS” WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IF ANY IMPLIED WARRANTY CANNOT
BE DISCLAIMED IN ANY TERRITORY WHERE A PRODUCT IS SOLD, THE DURATION OF SUCH IMPLIED WARRANTY SHALL BE
LIMITED TO NINETY (90) DAYS. EXCEPT AS EXPRESSLY COVERED UNDER THE LIMITED WARRANTY PROVIDED HEREIN, THE
ENTIRE RISK AS TO THE QUALITY, SELECTION AND PERFORMANCE OF THE PRODUCT IS WITH THE PURCHASER OF THE
PRODUCT.
Limitation of Liability: TO THE MAXIMUM EXTENT PERMITTED BY LAW, D-LINK IS NOT LIABLE UNDER ANY CONTRACT,
NEGLIGENCE, STRICT LIABILITY OR OTHER LEGAL OR EQUITABLE THEORY FOR ANY LOSS OF USE OF THE PRODUCT,
INCONVENIENCE OR DAMAGES OF ANY CHARACTER, WHETHER DIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL
(INCLUDING, BUT NOT LIMITED TO, DAMAGES FOR LOSS OF GOODWILL, LOSS OF REVENUE OR PROFIT, WORK STOPPAGE,
COMPUTER FAILURE OR MALFUNCTION, FAILURE OF OTHER EQUIPMENT OR COMPUTER PROGRAMS TO WHICH D-LINK’S
PRODUCT IS CONNECTED WITH, LOSS OF INFORMATION OR DATA CONTAINED IN, STORED ON, OR INTEGRATED WITH ANY
PRODUCT RETURNED TO D-LINK FOR WARRANTY SERVICE) RESULTING FROM THE USE OF THE PRODUCT, RELATING TO
WARRANTY SERVICE, OR ARISING OUT OF ANY BREACH OF THIS LIMITED WARRANTY, EVEN IF D-LINK HAS BEEN ADVISED
OF THE POSSIBILITY OF SUCH DAMAGES. THE SOLE REMEDY FOR A BREACH OF THE FOREGOING LIMITED WARRANTY IS
REPAIR, REPLACEMENT OR REFUND OF THE DEFECTIVE OR NON-CONFORMING PRODUCT. THE MAXIMUM LIABILITY OF DLINK UNDER THIS WARRANTY IS LIMITED TO THE PURCHASE PRICE OF THE PRODUCT COVERED BY THE WARRANTY. THE
FOREGOING EXPRESS WRITTEN WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ANY OTHER
WARRANTIES OR REMEDIES, EXPRESS, IMPLIED OR STATUTORY.
Governing Law: This Limited Warranty shall be governed by the laws of the state of California. Some states do not allow exclusion
or limitation of incidental or consequential damages, or limitations on how long an implied warranty lasts, so the foregoing
limitations and exclusions may not apply. This limited warranty provides specific legal rights and the product owner may also have
other rights which vary from state to state.
vi
TABLE OF CONTENTS
About This User’s Guide ............................................................................................................................... ix
Before You Start ............................................................................................................................................ ix
Information Required for Installation ..............................................................................................................x
Installing the USB Driver.............................................................................................................................. xii
INTRODUCTION ........................................................................................................ 1
Modem Description and Operation ................................................................................................................. 1
Modem Features.............................................................................................................................................. 3
Standards Compatibility and Compliance....................................................................................................... 4
Front Panel Display......................................................................................................................................... 5
Rear Panel Connections .................................................................................................................................. 6
HARDWARE INSTALLATION ................................................................................... 7
Power on Modem ............................................................................................................................................ 7
Factory Reset Button....................................................................................................................................... 7
Network Connections...................................................................................................................................... 8
CONFIGURING THE MODEM FOR THE FIRST TIME............................................ 10
Configuring IP Settings on Your Computer.................................................................................................. 10
Access the Configuration Manager .................................................................................................. 15
Home..................................................................................................................................................... 16
Configure the Modem ................................................................................................................................... 17
Setup..................................................................................................................................................... 18
Configure a New Connection........................................................................................................................ 19
WEB-BASED MANAGEMENT ................................................................................ 25
Accessing the Web Manager......................................................................................................................... 25
DHCP Configuration..................................................................................................................................... 26
Management IP ............................................................................................................................................. 27
Tools ..................................................................................................................................................... 28
Changing the User Name and Password ....................................................................................................... 28
System Commands........................................................................................................................................ 28
Remote Log................................................................................................................................................... 30
User Management ......................................................................................................................................... 31
Update Gateway............................................................................................................................................ 32
Ping Test ....................................................................................................................................................... 33
Status.................................................................................................................................................... 34
Network Statistics ......................................................................................................................................... 35
Connection Status ......................................................................................................................................... 36
DHCP Clients................................................................................................................................................ 37
Modem Status ............................................................................................................................................... 38
Product Info. ................................................................................................................................................. 39
System Log ................................................................................................................................................... 40
Help ....................................................................................................................................................... 41
TECHNICAL SPECIFICATIONS.............................................................................. 42
IP ADDRESS SETUP............................................................................................... 44
IP CONCEPTS ......................................................................................................... 46
MICROFILTERS AND SPLITTERS ......................................................................... 49
DSL-302T DSL Modem User’s Guide
About This User’s Guide
This user’s guide provides instructions on how to install the DSL-302T ADSL Modem and use it to connect a
computer or Ethernet Local Area Network (LAN) to the Internet.
If you are using a computer with a functioning Ethernet port or an available USB port, the quickest and easiest
way to set up the DSL-302T is to insert the Installation CD into the CD-ROM drive of your computer and follow
the instructions provided in the Quick Installation Guide. Alternatively, you can click the “ Install DSL-302T”
link on the initial pop-up menu that appears shortly after inserting the CD and follow the instructions as they are
presented. If the menu fails to appear, explore the CD and find the file “ dsl302t.exe” and double-click it to
launch the installation software.
Before You Start
Please read and make sure you understand all the prerequisites for proper installation of your new Modem. Have
all the necessary information and equipment on hand before beginning the installation.
Installation Overview
The procedure to install the Modem can be described in general terms in the following steps:
1.
Gather information and equipment needed to install the device. Before you power on the device or
connect it to your computer, make sure you have all the necessary information, cables, power adapter
and any other required equipment listed.
2.
Install the hardware, that is, connect the cables (Ethernet and telephone) to the device and connect the
power adapter.
3.
Check the IP settings on your computer and change them if necessary so the computer can access the
web-based software built into the Modem.
4.
Use the web-based management software to configure the device to suit the requirements of your ADSL
account.
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DSL-302T DSL Modem User’s Guide
Information Required for Installation
Information you will need from your ADSL service provider:
Username
This is the Username used to log on to your ADSL
service provider’s network. It is commonly in the form −
user@isp.com. Your ADSL service provider uses this
to identify your account.
Password
This is the Password used, in conjunction with the
Username above, to log on to your ADSL service
provider’s network. This is used to verify the identity of
your account.
Connection Protocol
This is the method your ADSL service provider uses to
send and receive data between the Internet and your
computer. Your Modem supports the following
connection protocols: PPPoE, PPPoA, CLIP (IPoA) and
Bridge.
Security Protocol
This is the method your ADSL service provider will use
to verify your Username and Password when you log
on to their network. Your Modem supports the PAP and
CHAP protocols.
VPI
This is the Virtual Path Identifier (VPI). It is used in
conjunction with the Virtual Channel Identifier (VCI)
below, to identify the data path between your ADSL
service provider’s network and your computer.
VCI
This is the Virtual Channel Identifier (VCI). It is used in
conjunction with the VPI above to identify the data path
between your ADSL service provider’s network and
your computer.
Record info here
Information you will need to change settings on the DSL-302T Modem:
Username
This is the Username needed access the Modem’s
management interface. When you attempt to connect to
the device through a web browser you will be prompted
to enter this Username. The default Username for the
Modem is admin. This may be changed by the user.
Password
This is the Password you will be prompted to enter
when you access the Modem’s management interface.
The default Password is admin. This may be changed
by the user.
LAN IP addresses for
the DSL-302T
This is the IP address you will enter into the Address
field of your web browser to access the Modem’s
configuration graphical user interface (GUI) using a
web browser. The default IP address is 192.168.1.1
and it is referred to as the “Management IP” address in
this User’s Manual. This may be changed to suit any IP
address scheme the user desires. This address will be
the base IP address used for DHCP service on the LAN
when DHCP is enabled.
LAN Subnet Mask for
the DSL-302T
This is the subnet mask used by the DSL-302T, and
will be used throughout your LAN. The default subnet
mask is 255.255.255.0. This can be changed later.
x
Record info here
DSL-302T DSL Modem User’s Guide
Information you will need about your Ethernet LAN or computer:
Ethernet NIC
If your computer has an Ethernet NIC, you can
connect the DSL-302T to this Ethernet port using an
Ethernet cable. You can also use the Ethernet port on
the DSL-302T to connect to other Ethernet devices,
such as a Wireless Access Point.
USB port
If your computer has an available USB port, you can
connect the DSL-302T to this USB port using a USB
cable.
DHCP Client status
Your DSL-302T ADSL Modem is configured, by
default, to be a DHCP server. This means that it can
assign an IP address, subnet mask, and a default
gateway address to computers on your LAN. The
default range of IP addresses the DSL-302T will
assign are from 192.168.1.2 to 192.168.1.254. Your
computer (or computers) needs to be configured to
Obtain an IP address automatically (that is, they
need to be configured as DHCP clients.)
Record info here
It is recommended that your collect and record this information here, or in some other secure place, in case you
have to re-configure your ADSL connection in the future.
Once you have the above information, you are ready to setup and configure your DSL-302T ADSL Modem.
Note
The Modem may be reset to its factory default settings by performing a Restore
settings operation within the management interface (see below). If you cannot gain
access to the management interface, you may opt to use the Reset button on the
rear panel of the device (see Factory Reset Button below).
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DSL-302T DSL Modem User’s Guide
Installing the USB Driver
The CD-ROM shipped with the Modem contains the USB driver software.
1.
Insert the DSL-302T Installation CD-ROM into the CD-ROM drive.
2.
Connect the USB cable to the device. Within a few seconds you should see the “ Found New Hardware”
message window, followed shortly after by the opening “ Found New Hardware Wizard” window:
3.
If you do not see the auto-run window pictured above, explore the CD and double-click the inf file
DLink_302t.inf.
4.
Click the Next button.
5.
Click the Next button.
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DSL-302T DSL Modem User’s Guide
6.
Check “ CD-ROM drives" (as shown above) if you are using the USB driver included on the CD-ROM
that came with your Modem. Click Next.
7.
Connect the Ethernet cable if you have not done so.
8.
Connect the ADSL cable if you have not done so. Remember that most ADSL installations require a
filter to divide the ADSL signal from the Plain-Old Telephone (POTS) signal.
9.
You can restart your computer now by clicking the Finish button. The computer will be able to connect
to the Modem through the USB port after restarting.
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DSL-302T ADSL Modem User’s Guide
1
Introduction
This section provides a brief description of the Modem, its associated technologies and a list of Modem features.
Modem Description and Operation
The DSL-302T ADSL Modem is designed to provide a simple and cost-effective ADSL Internet connection for
individual computers through either the Ethernet or USB ports, or use it to bridge your Ethernet LAN to the
Internet. The DSL-302T combines the benefits of high-speed ADSL technology and LAN IP management in one
compact and convenient package. ADSL technology enables many interactive multi-media applications such as
video conferencing and collaborative computing.
The Modem is easy to install and use. The DSL-302T connects to single computer or an Ethernet LAN via a
standard Ethernet interface. A single computer may also be connected through the USB port. The ADSL
connection is made using ordinary twisted-pair telephone line with standard connectors. Multiple PCs can be
networked and connected to the Internet using a single Wide Area Network (WAN) interface and single global
IP address.
What is ADSL?
Asymmetric Digital Subscriber Line (ADSL) is an access technology that utilizes ordinary copper telephone
lines to enable broadband high-speed digital data transmission and interactive multimedia applications for
business and residential customers.
ADSL greatly increases the signal carrying capacity of copper telephone lines without interfering with regular
telephone services. For the ADSL user, this means faster downloads and more reliable connectivity. ADSL
devices make it possible to enjoy benefits such as high-speed Internet access without experiencing any loss of
quality or disruption of voice/fax telephone capabilities.
ADSL provides a dedicated service over a single telephone line operating at speeds of up to 8 Mbps downstream
and up to 640 Kbps upstream, depending on local telephone line conditions. A secure point-to-point connection
is established between the user and the central office of the service provider.
D-Link ADSL devices incorporate the recommendations of the ADSL Forum regarding framing, data format,
and upper layer protocols.
Low Pass Filters
Since ADSL and telephone services share the same copper wiring to carry their respective signals, a filtering
mechanism may be necessary to avoid mutual interference. A low pass filter device can be installed for each
telephone that shares the line with the ADSL line. These filters are easy to install passive devices that connect to
the ADSL device and/or telephone using standard telephone cable. Ask your service provider for more
information about the use of low pass filters with your installation.
Operating Systems
The DSL-302T uses an HTML-based web interface for setup and management. The web configuration manager
may be accessed using any operating system capable of running web browser software, including Windows 98
SE, Windows ME, Windows 2000, and Windows XP.
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DSL-302T ADSL Modem User’s Guide
Web Browser
Any common web browser can be used to configure the Modem using the web configuration management
software. The program is designed to work best with more recently released browsers such as Opera, Microsoft
Internet Explorer® version 5.0, Netscape Navigator® version 4.7, or later versions. The web browser must have
JavaScript enabled. JavaScript is enabled by default on many browsers. Make sure JavaScript has not been
disabled by other software (such as virus protection or web user security packages) that may be running on your
computer.
Ethernet Port (NIC Adapter)
Any computer that uses the Modem must be able to connect to it through the Ethernet port on the Modem. This
connection is an Ethernet connection and therefore requires that your computer be equipped with an Ethernet
port as well. Most notebook computers are now sold with an Ethernet port already installed. Likewise, most fully
assembled desktop computers come with an Ethernet NIC adapter as standard equipment. If your computer does
not have an Ethernet port, you must install an Ethernet NIC adapter before you can use the Modem. If you must
install an adapter, follow the installation instructions that come with the Ethernet NIC adapter.
Additional Software
It may be necessary to install software on your computer that enables the computer to access the Internet.
Additional software must be installed if you are using the device a simple bridge. For a bridged connection, the
information needed to make and maintain the Internet connection is stored on another computer or gateway
device, not in the Modem itself.
If your ADSL service is delivered through a PPPoE, PPPoA or IPoA connection, the information needed to
establish and maintain the Internet connection can be stored in the Modem. In this case, it is not necessary to
install software on your computer. It may however be necessary to change some settings in the device, including
account information used to identify and verify the connection.
All connections to the Internet require a unique global IP address. For bridged connections, the global IP settings
must reside in a TCP/IP enabled device on the LAN side of the bridge, such as a PC, a server, a gateway device
such as a Modem or similar firewall hardware. The IP address can be assigned in a number of ways. Your
network service provider will give you instructions about any additional connection software or NIC
configuration that may be required.
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DSL-302T ADSL Modem User’s Guide
Modem Features
The DSL-302T ADSL Modem utilizes the latest ADSL enhancements to provide a reliable Internet portal
suitable for most small to medium sized offices. DSL-302T advantages include:
•
PPP (Point-to-Point Protocol) Security – The DSL-302T ADSL Modem supports PAP (Password
Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol) for PPP connections.
•
DHCP Support – Dynamic Host Configuration Protocol automatically and dynamically assigns al LAN IP
settings to each host on your network. This eliminates the need to reconfigure every host whenever changes
in network topology occur..
•
TCP/IP (Transfer Control Protocol/Internet Protocol) – The DSL-302T supports TCP/IP protocol, the
language used for the Internet. It is compatible with access servers manufactured by major vendors.
•
ATM (Asynchronous Transfer Mode) – The DSL-302T supports Bridged Ethernet over ATM (RFC1483),
IP over ATM (RFC1577) and PPP over ATM (RFC 2364).
•
Precise ATM Traffic Shaping – Traffic shaping is a method of controlling the flow rate of ATM data cells.
This function helps to establish the Quality of Service for ATM data transfer.
•
G.hs (Auto-handshake) – This allows the Modem to automatically choose either the G.lite or G.dmt ADSL
connection standards.
•
High Performance – Very high rates of data transfer are possible with the Modem. Up to eight Mbps
downstream bit rate using the G.dmt.
•
Easy Installation – The DSL-302T uses a web-based graphical user interface program for convenient
management access and easy set up. Any common web browser software can be used to manage the Modem.
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DSL-302T ADSL Modem User’s Guide
Standards Compatibility and Compliance
The DSL-302T complies with or is compatible with the following standards as recognized by their respective
agencies.
•
ITU G.992.2 (G.lite “ Splitterless ADSL”) compliant
•
ITU-T Rec. I.361 compliant
•
RFC 791 Internet Protocol compliant
•
RFC 792 UDP compliant
•
RFC 1334 PPP Authentication Protocol compliant
•
RFC 1483 IP over AAL5/ Bridged Ethernet over AAL5 compliant
•
RFC 1557 Classical IP over ATM (IPoA) compliant
•
RFC 1661 Point to Point Protocol (PPP) compliant
•
RFC 1877 Automatic IP assignment compliant
•
RFC 1994 Challenge Handshake Authentication Protocol compliant
•
Supports RFC 2131 and RFC 2132 DHCP functions including: automatic assignment of IP address, use of
subnet mask and default gateway and provision of DNS server address for all hosts
•
RFC 2364 PPP over ATM compliant (PPPoA) compliant
•
RFC 2516 PPP over Ethernet compliant (PPPoE) compliant
•
RFC 2684 Bridged/Routed Ethernet over ATM compliant
•
Embedded management agent accessed via web browser
•
Supports DHCP for up to 253 hot connections
•
Supports ATM Forum UNI 3.1/4.0
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DSL-302T ADSL Modem User’s Guide
Packing List
Open the shipping carton and carefully remove all items. In addition to this User's Guide, ascertain that you have:
•
One DSL-302T ADSL Modem
•
One Quick Installation Guide
•
One twisted-pair telephone cable used for ADSL connection
•
One straight-through Ethernet cable
•
One AC power adapter suitable for your electric service
•
An Installation CD containing this User’s Manual and USB software driver
Front Panel Display
Place the Modem in a location that permits an easy view of the LED indicators on the front panel.
The LED indicators on the front panel include the Power, Status, ADSL Link/Act, Ethernet Link/Act, and
USB Link/Act indicators. The ADSL, Ethernet, and USB indicators monitor link status and activity (Link/Act).
Power
Steady green light indicates the unit is powered on. When the device is
powered off this remains dark.
Status
Lights steady green during power on self-test (POST). Once the connection
status has been settled, the light will blink green. If the indicator lights steady
green after the POST, the system has failed and the device should be
rebooted.
ADSL: Link/Act
Steady green light indicates a valid ADSL connection. This will light after the
ADSL negotiation process has been settled. A blinking green light indicates
activity on the WAN (ADSL) interface.
Ethernet: Link/Act
A solid green light indicates a valid link on startup. This light will blink when
there is activity currently passing through the Ethernet port.
USB: Link/Act
Steady green light indicates a valid USB connection. A blinking green light
indicates activity on the USB interface.
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DSL-302T ADSL Modem User’s Guide
Rear Panel Connections
All cable connections to the Modem are made at the rear panel. Connect the power adapter here to power on the
Modem. Use the Reset button to restore the settings to the factory default values (see Factory Reset Button in the
next chapter for instructions on using the reset button).
USB port,
connect USB
cable here
and install
the USB
driver
Ethernet
port,
connect
Ethernet
cable here
ADSL port,
connect ADSL
cable here
Factory
Reset
button
Power cord
connects
here
The Modem may be rebooted by disconnecting and then reconnecting the power.
Note
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DSL-302T ADSL Modem User’s Guide
2
Hardware Installation
The DSL-302T maintains three separate interfaces, an Ethernet, a USB and an ADSL interface. Place the
Modem in a location where it can be connected to the various devices as well as to a power source. The Modem
should not be located where it will be exposed to moisture or excessive heat. Make sure the cables and power
cord are placed safely out of the way so they do not create a tripping hazard. As with any electrical appliance,
observe common sense safety procedures.
The access point can be placed on a shelf or desktop, ideally you should be able to see the LED indicators on the
front if you need to view them for troubleshooting.
Power on Modem
CAUTION: The Modem must be used with the power adapter included with the
device.
To power on the Modem:
1.
Insert the AC Power Adapter cord into the power receptacle located on the rear panel of the Modem and
plug the adapter into a suitable nearby power source.
2.
You should see the Power LED indicator light up and remain lit. The Status LED should light solid green
and begin to blink after a few seconds.
3.
If the Ethernet port is connected to a working device, check the Ethernet Link/Act LED indicators to make
sure the connection is valid. The Modem will attempt to establish the ADSL connection, if the ADSL line is
connected and the Modem is properly configured this should light up after several seconds. If this is the first
time installing the device, some settings may need to be changed before the Modem can establish a
connection.
Factory Reset Button
The Modem may be reset to the original factory default settings by depressing the reset button for a few seconds
while the device is powered on. Use a ballpoint or paperclip to gently push down the reset button. Remember
that this will wipe out any settings stored in flash memory including user account information and LAN IP
settings. The factory default IP address of the Modem is 192.168.1.1 and the subnet mask is 255.255.255.0, the
default management Username is admin and the default Password is admin.
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DSL-302T ADSL Modem User’s Guide
Network Connections
Network connections are provided through the ADSL port, the Ethernet port and the USB port on the back of the
Modem. See the Rear Panel diagram above and the illustrations below for examples. See Installing the USB
Driver above for a description of the USB driver installation procedure.
Connect ADSL Line
Use the ADSL cable included with the Modem to connect it to a telephone wall socket or receptacle. Plug one
end of the cable into the ADSL port (RJ-11 receptacle) on the rear panel of the Modem and insert the other end
into the RJ-11 wall socket. If you are using a low pass filter device, follow the instructions included with the
device or given to you by your service provider. The ADSL connection represents the WAN interface, the
connection to the Internet. It is the physical link to the service provider’s network backbone and ultimately to the
Internet.
Connect Modem to Ethernet
The Modem may be connected to a single computer or Ethernet device through the 10BASE-TX Ethernet port
on the rear panel. Any connection to an Ethernet concentrating device such as a switch or hub must operate at a
speed of 10/100 Mbps only. When connecting the Modem to any Ethernet device that is capable of operating at
speeds higher than 10Mbps, be sure that the device has auto-negotiation (NWay) enabled for the connecting port.
Note
In order to connect the Modem to an Ethernet LAN, it is necessary to install
rd
3 -party PPP connection software on any system used to access the Internet.
Use standard twisted-pair cable with RJ-45 connectors. The RJ-45 port on the Modem is a crossed port (MDI-X).
Follow standard Ethernet guidelines when deciding what type of cable to use to make this connection. When
connecting the Modem directly to a PC or server use a normal straight-through cable. You should use a crossed
cable when connecting the Modem to a normal (MDI-X) port on a switch or hub. Use a normal straight-through
cable when connecting it to an uplink (MDI-II) port on a hub or switch.
The rules governing Ethernet cable lengths apply to the LAN to Modem connection. Be sure that the cable
connecting the LAN to the Modem does not exceed 100 meters.
Computer to Modem Connection
Connect the Modem
directly to a
10/100BASE-TX
Ethernet port on a PC
or notebook computer
using the Ethernet
cable provided as
shown in this diagram.
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DSL-302T ADSL Modem User’s Guide
Hub or Switch to Modem Connection
Connect the Modem to an uplink port (MDI-II) on an Ethernet hub or switch with a straight-through cable as
shown in the diagram below:
If you wish to reserve the
uplink port on the switch or
hub for another device,
connect to any on the other
MDI-X ports (1x, 2x, etc.)
with a crossed cable.
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DSL-302T ADSL Modem User’s Guide
3
Configuring the Modem for the First Time
The first time you setup the Modem, configure the WAN connection using a single computer connected directly
to the Modem. Once the WAN connection is functioning properly, you may continue to make changes to Modem
configuration including IP settings and DHCP setup. This chapter is concerned with using your computer to
configure the WAN connection. The following chapter describes the various menus used to configure and
monitor the Modem including how to change IP settings and DHCP server setup.
Wan Configuration Summary
1.
Connect to the Modem To configure the WAN connection used by the Modem it is first necessary to
communicate with the Modem through its management interface, which is HTML-based and can be
accessed using a web browser. To access the management software your computer must be able to
“ see” the Modem. Your computer can see the Modem if it is in the same “ neighborhood” or subnet as
the Modem. This is accomplished by making sure your computer has IP settings that place it in the
same subnet as the Modem. The easiest way to make sure your computer has the correct IP settings is to
configure it to use the embedded DHCP server in the Modem. The next section describes how to change
the IP configuration for a computer running a Windows operating system to be a DHCP client.
2.
Configure the WAN Connection Once your are able to access the configuration software you can
proceed to change the settings required to establish the ADSL connection and connect to the service
provider’s network. There are different methods used to establish the connection to the service
provider’s network and ultimately to the Internet. You should know what Encapsulation and connection
type you are required to use for your ADSL service. For some users, it may be necessary to change the
PVC settings used for the ADSL connection. Your service provider should provide all the information
you need to successfully configure the WAN connection.
Configuring IP Settings on Your Computer
In order to configure your system to receive IP settings from the Modem it must first have the TCP/IP protocol
installed. If you have an Ethernet port on your computer, it probably already has TCP/IP protocol installed. If
you are using Windows XP the TCP/IP is enabled by default for standard installations. Below is an illustrated
example of how to configure a Windows XP system to automatically obtain IP settings from the Modem.
Following this example is a step-by-step description of the procedures used on the other Windows operating
systems to first check if the TCP/IP protocol has been installed; if it is not, instructions are provided for
installing it. Once the protocol has been installed you can configure the system to receive IP settings from the
Modem.
For computers running non-Windows operating systems, follow the instructions for your OS that configure the
system to receive an IP address from the Modem, that is, configure the system to be a DHCP client.
Note
If you are using this Modem to provide Internet access for more than one
computer, you can use these instructions later to change the IP settings for the
other computers. However, you cannot use the same IP address since every
computer must have its own IP address that is unique on the local network.
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DSL-302T ADSL Modem User’s Guide
Configure Windows XP for DHCP
Use the following steps to configure a computer running Windows XP to be a DHCP client.
1.
From the Start menu on your desktop, go to Settings, then click on Network Connections.
2.
In the Network Connections window, right-click on LAN (Local Area Connection), then click
Properties.
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DSL-302T ADSL Modem User’s Guide
3.
In the General tab of the Local Area Connection Properties menu, highlight Internet Protocol
(TCP/IP) under “ This connection uses the following items:” by clicking on it once. Click on the
Properties button.
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DSL-302T ADSL Modem User’s Guide
4.
Select “ Obtain an IP address automatically” by clicking once in the circle. Click the OK button.
Your computer is now ready to use the Modem’s DHCP server.
Windows 2000
First, check for the IP protocol and, if necessary, install it:
1.
In the Windows task bar, click the Start button, point to Settings, and then click Control Panel.
2.
Double-click the Network and Dial-up Connections icon.
3.
In the Network and Dial-up Connections window, right-click the Local Area Connection icon, and
then select Properties.
4.
The Local Area Connection Properties dialog box displays with a list of currently installed network
components. If the list includes Internet Protocol (TCP/IP), then the protocol has already been enabled,
skip ahead to Configure Windows 2000 for DHCP.
5.
If Internet Protocol (TCP/IP) does not display as an installed component, click Install.
6.
In the Select Network Component Type dialog box, select Protocol, and then click Add.
7.
Select Internet Protocol (TCP/IP) in the Network Protocols list, and then click OK.
8.
You may be prompted to install files from your Windows 2000 installation CD or other media. Follow
the instructions to install the files.
9.
If prompted, click OK to restart your computer with the new settings.
Configure Windows 2000 for DHCP
1.
In the Control Panel, double-click the Network and Dial-up Connections icon.
2.
In Network and Dial-up Connections window, right-click the Local Area Connection icon, and then
select Properties.
3.
In the Local Area Connection Properties dialog box, select Internet Protocol (TCP/IP), and then
click Properties.
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DSL-302T ADSL Modem User’s Guide
4.
In the Internet Protocol (TCP/IP) Properties dialog box, click the button labeled Obtain an IP
address automatically.
5.
Double-click OK to confirm and save your changes, and then close the Control Panel.
Your computer is now ready to use the Modem’s DHCP server.
Windows ME
First, check for the IP protocol and, if necessary, install it:
1.
In the Windows task bar, click the Start button, point to Settings, and then click Control Panel.
2.
Double-click the Network and Dial-up Connections icon.
3.
In the Network and Dial-up Connections window, right-click the Network icon, and then select
Properties.
4.
The Network Properties dialog box displays with a list of currently installed network components. If
the list includes Internet Protocol (TCP/IP), then the protocol has already been enabled. Skip ahead to
Configure Windows ME for DHCP.
5.
If Internet Protocol (TCP/IP) does not display as an installed component, click Add.
6.
In the Select Network Component Type dialog box, select Protocol, and then click Add.
7.
Select Microsoft in the Manufacturers box.
8.
Select Internet Protocol (TCP/IP) in the Network Protocols list, and then click OK.
9.
You may be prompted to install files from your Windows Me installation CD or other media. Follow
the instructions to install the files.
10. If prompted, click OK to restart your computer with the new settings.
Configure Windows ME for DHCP
1.
In the Control Panel, double-click the Network and Dial-up Connections icon.
2.
In the Network and Dial-up Connections window, right-click the Network icon, and then select
Properties.
3.
In the Network Properties dialog box, select TCP/IP, and then click Properties.
4.
In the TCP/IP Settings dialog box, click the Obtain and IP address automatically option.
5.
Double-click OK twice to confirm and save your changes, and then close the Control Panel.
Your computer is now ready to use the Modem’s DHCP server.
Windows 95 and Windows 98
First, check for the IP protocol and, if necessary, install it:
1.
In the Windows task bar, click the Start button, point to Settings, and then click Control Panel.
Double-click the Network icon.
2.
The Network dialog box displays with a list of currently installed network components. If the list
includes TCP/IP, and then the protocol has already been enabled, skip to Configure IP Information
Windows 95, 98.
3.
If TCP/IP does not display as an installed component, click Add. The Select Network Component
Type dialog box displays.
4.
Select Protocol, and then click Add. The Select Network Protocol dialog box displays.
5.
Click on Microsoft in the Manufacturers list box, and then click TCP/IP in the Network Protocols list
box.
6.
Click OK to return to the Network dialog box, and then click OK again. You may be prompted to
install files from your Windows 95/98 installation CD. Follow the instructions to install the files.
7.
Click OK to restart the PC and complete the TCP/IP installation.
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DSL-302T ADSL Modem User’s Guide
Configure Windows 95 and Windows 98 for DHCP
1.
Open the Control Panel window, and then click the Network icon.
2.
Select the network component labeled TCP/IP, and then click Properties.
3.
If you have multiple TCP/IP listings, select the listing associated with your network card or adapter.
4.
In the TCP/IP Properties dialog box, click the IP Address tab.
5.
Click the Obtain an IP address automatically option.
6.
Double-click OK to confirm and save your changes. You will be prompted to restart Windows.
7.
Click Yes.
When it has restarted your computer is ready to use the Modem’s DHCP server.
Windows NT 4.0 Workstations
First, check for the IP protocol and, if necessary, install it:
1.
In the Windows NT task bar, click the Start button, point to Settings, and then click Control Panel.
2.
In the Control Panel window, double-click the Network icon.
3.
In the Network dialog box, click the Protocols tab.
4.
The Protocols tab displays a list of currently installed network protocols. If the list includes TCP/IP,
then the protocol has already been enabled. Skip to “ Configure IP Information”
5.
If TCP/IP does not display as an installed component, click Add.
6.
In the Select Network Protocol dialog box, select TCP/IP, and then click OK. You may be prompted
to install files from your Windows NT installation CD or other media. Follow the instructions to install
the files.
7.
After all files are installed, a window displays to inform you that a TCP/IP service called DHCP can be
set up to dynamically assign IP information.
8.
Click Yes to continue, and then click OK if prompted to restart your computer.
Configure Windows NT 4.0 for DHCP
1.
Open the Control Panel window, and then double-click the Network icon.
2.
In the Network dialog box, click the Protocols tab.
3.
In the Protocols tab, select TCP/IP, and then click Properties.
4.
In the Microsoft TCP/IP Properties dialog box, click the Obtain an IP address automatically option.
5.
Click OK twice to confirm and save your changes, and then close the Control Panel.
Access the Configuration Manager
Now that your computer’s IP settings allow it to communicate with the Modem, you can access the configuration
software.
Note: Be sure that the web browser on your computer is not configured to use a proxy server in the Internet
settings. In Windows Internet Explorer, you can check if a proxy server is enabled using the following procedure:
1. In Windows, click on the Start button, go to Settings and choose Control Panel.
2. In the Control Panel window, double-click on the Internet Options icon.
3. Click the Connections tab and click on the LAN Settings button.
4. Verify that the “ Use proxy server” option is NOT checked. If it is checked, click in the checked box to
deselect the option and click OK.
Alternatively you can access this Internet Options menu using the Tools pull-down menu in Internet Explorer.
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DSL-302T ADSL Modem User’s Guide
To use the web-based management software, launch a suitable web browser and direct it to the IP address of the
Modem. Type in http:// followed by the default IP address, 192.168.1.1 in the address bar of the browser. The
URL in the address bar should read: http://192.168.1.1.
Home
Figure 3-1. Home - Login window
A new window will appear and you will be prompted for a user name and password to access the web-based
manager. Use the default user name admin and password admin for first time setup. You should change the
web-based manager access user name and password once you have verified that a connection can be established.
The user name and password allows any PC within the same subnet as the Modem to access the web-based
manger.
Note
Do not confuse the user name and password used to access the web-based
manager with the ADSL account user name and password needed for PPP
connections to access the service provider’s network.
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DSL-302T ADSL Modem User’s Guide
Configure the Modem
The first page that appears after you successfully login displays information about the Modem and its connection
status. Tabs across the top of the screen show other available menus: Home, Setup, Tools, Status, and Help.
Figure 3-2. Home – Status Information window
When the Modem is used to provide Internet access it must first access your service provider’s network, that is,
it must communicate with computers and other modems owned by your service provider. These computers and
modems then provide access to the Internet. The Modem must be configured to communicate with the systems
that give it access to the larger network. Click either the Setup tab (or the Go to setup wizard hyperlink); the
following window will appear:
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DSL-302T ADSL Modem User’s Guide
Setup
The Setup window offers links to menus to configure settings for the LAN (Local Area Network) and for the
WAN (Wide Area Network) setup. The first menu you see when clicking the Setup tab is the DSL Setup menu.
All the information you need to make the changes needed for a functioning WAN connection should have been
provided to you by your ISP or network service provider. One of the settings you may be asked to change is the
Modulation type used for the ADSL connection. The DSL Setup menu is used to change the type of modulation
used for the WAN connection.
Figure 3-3. Modem Setup menu
If you know what Modulation type is used for your service, select the desired modulation type and then click
Apply. The modulation types available are T1413, G.DMT, GLITE and MMODE. By default, the Modem uses
MMODE.
Now you are ready to configure the remaining settings needed for the WAN connection. Click the Connection
button to configure the other WAN settings.
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DSL-302T ADSL Modem User’s Guide
Configure a New Connection
The default connection protocol used for the Modem is Point-to-Point Protocol over ATM (PPPoA). The menu
used to configure ADSL service using this protocol is the menu you see when clicking on the Connection button
under WAN Setup on the left side of the window. If you are using either PPPoE or a Bridge connection, it will
be necessary to change the Type: using the pull-down menu before you can change the required settings.
PPoA
To configure the WAN connection for PPPoA, perform the steps listed below. Some settings may not be
required to be changed now but can be changed later if you choose.
Figure 3-4. Setup – New Connection (PPPoA) window
PPPoA is also known as RFC 2364. It is a method of encapsulating PPP packets over ATM cells that are carried
over the DSL line. PPP or Point-to-Point protocol is a method of establishing a network connection/session
between network hosts. PPPoA connection require a verification process where it is necessary to enter a
Username and Password to connection the Modem to the Internet.
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DSL-302T ADSL Modem User’s Guide
To setup a PPPoA connection for the first time:
1.
Type in a Name in the space provided if you wish or leave the default name.
2.
Make sure PPPoA appears listed as the Type: of connection protocol used.
3.
Do not change the VPI or VCI values unless you are required to do so. If these settings are incorrect, the
ADSL connection will not function. Many users will be able to use the default settings. If you are told to
change these, type in the values given to you by your service provider.
4.
Leave the default QoS values if you are unsure or the ISP did not provide this information.
5.
Do not change the PCR or SCR values unless you are required to do so. If you are told to change these, type
in the values given to you by your service provider.
6.
Supply a Username and Password used to verify the identity of your account. These are usually provided
by your ISP.
7.
The Encapsulation values LLC (SNAP) and VC (MUX) are two different methods of encapsulating the
PPP packet. Contact your ISP to make sure which encapsulation is being supported.
8.
For most users, the remaining settings will not need to be changed. See your ISP for further information.
9.
Click the Apply button when you have entered all the information. The browser window may briefly go
blank. After a few seconds the new connection you just configured will become the active connection for the
Modem.
10. To make your temporarily saved connection permanent, click the Save All button in the System
Commands window on the Tools tab.
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DSL-302T ADSL Modem User’s Guide
PPPoE
The required information used to setup a PPPoE connection is identical to that needed for a PPPoA connection.
Make sure you have selected PPPoE from the Type: pull-down menu so that you are now configuring setting in
the menu titled “ PPPoE Connection Setup”. Follow the instructions below to set up the connection.
Change
connection
type here
Figure 3-5. Setup Connection (PPPoE) window
To configure a PPPoE connection, perform the steps listed below. Some settings may not be required to be
changed now but can be changed later if you choose.
1.
Type in a Name in the space provided if you wish or leave the default name.
2.
Make sure PPPoE appears listed as the Type: of connection protocol used.
3.
Do not change the VPI or VCI values unless you are required to do so. If these settings are incorrect, the
ADSL connection will not function. Many users will be able to use the default settings. If you are told to
change these, type in the values given to you by your service provider.
4.
Leave the default QoS values if you are unsure or the ISP did not provide this information.
5.
Do not change the PCR or SCR values unless you are required to do so. If you are told to change these, type
in the values given to you by your service provider.
6.
Supply a Username and Password used to verify the identity of your account. These are usually provided
by your ISP.
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DSL-302T ADSL Modem User’s Guide
7.
The Encapsulation values LLC (SNAP) and VC (MUX) are two different methods of encapsulating the
PPP packet. Contact your ISP to make sure which encapsulation is being supported.
8.
For most users, the remaining settings will not need to be changed. See your ISP for further information.
9.
Click the Apply button when you have entered all the information. The browser window may briefly go
blank. After a few seconds the new connection you just configured will become the active connection for the
Modem.
10. To make your temporarily saved connection permanent, click the Save All button in the System
Commands window on the Tools tab.
Bridge
Make sure you have selected Bridge from the Type: pull-down menu so that you are now configuring setting in
the menu titled “ Bridged Connection Setup”. Follow the instructions below to set up the connection.
Figure 3-6. Setup – New Connection (Bridge) window
To configure the WAN connection for Bridge, perform the steps listed below. Some of the settings do not need
to be changed when you first set up the device but can be changed later if you choose.
“ Bridge” means a pure bridged connection with no IP address assigned to the Modem. This connection method
makes the Modem act as a bridge, and just passes packets across the DSL port.
1.
Type in a Name in the space provided if you wish or leave the default name.
2.
Make sure Bridge appears listed as the Type: of connection protocol used.
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DSL-302T ADSL Modem User’s Guide
3.
Do not change the VPI or VCI values unless you are required to do so. If these settings are incorrect, the
ADSL connection will not function. Many users will be able to use the default settings. If you are told to
change these, type in the values given to you by your service provider.
4.
Leave the default QoS values if you are unsure or the ISP did not provide this information.
5.
Do not change the PCR or SCR values unless you are required to do so. If you are told to change these, type
in the values given to you by your service provider.
6.
The Encapsulation values LLC (SNAP) and VC (MUX) are two different methods of encapsulating the
PPP packet. Contact your ISP to make sure which encapsulation is being supported.
7.
Click the Apply button when you have entered all the information. The browser window may briefly go
blank. After a few seconds the new connection you just configured will become the active connection for the
Modem.
8.
To make your temporarily saved connection permanent, click the Save All button in the System
Commands window on the Tools tab.
Static IP
Static is used whenever a known static IP is assigned. The accompanying information such as the Subnet mask
and the gateway should also be specified in order to be able to connect. Up to three Domain Name Server (DNS)
addresses can also be specified. These are the servers would enable you to have access to other web servers.
Valid IP addresses range from 0.0.0.0 to 255.255.255.255.
Figure 3- 7. Setup Static IP
To configure the WAN connection for Static, perform the steps listed below. Some of the settings do not need to
be changed the first time the device is set up, but can be changed later if you choose.
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DSL-302T ADSL Modem User’s Guide
1.
Click the Connection 1 button under WAN Setup to view the default PPPoA Connection Setup
configuration menu.
2.
Select Static from the Type: pull-down menu. This action will change the menu so it offers different
settings for configuration.
3.
Type in a Name: in the space provided.
4.
If you are told to change the VPI or VCI values, type in the values given to you by your service
provider. Many users will be able to use the default settings.
5.
Leave the default QoS values if you are unsure or the ISP did not provide this information.
6.
Do not change the PCR or SCR values unless you are required to do so. If you are told to change these,
type in the values given to you by your service provider.
7.
The Encapsulation values LLC (SNAP) and VC (MUX) are two different methods of encapsulating
the PPP packet. Contact your ISP to make sure which encapsulation is being supported.
8.
Based on the information provided by your ISP, enter the IP Address, Subnet Mask, Default Gateway
(if provided), and Domain Name Services (DNS) values (if provided).
9.
Click the Apply button when you have entered all the information. The web browser will briefly go
blank. You are now finished changing setting for the primary WAN connection known as Connection 1.
It is now necessary to save the changes you just made and restart the Modem.
10. To save the changes made to Connection 1, click the Tools tab and then click on the System
Commands button. Click on the Save All button to store the configuration settings. Click on Back
button to return to the System Commands menu.
11. Check the WAN connection status. Click the Status tab and then the Connection Status button. Look
under WAN to view the State of Connection 1, it should read Connected. If the WAN connection state
does not appear to Connected after a few minutes, go back to the Connection 1 Setup menu, check the
settings and make sure they are correct.
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DSL-302T ADSL Modem User’s Guide
4
Web-based Management
The DSL-302T offers a web-based (HTML) graphical user interface allowing users to manage the Modem from
anywhere on the LAN using a standard browser. A web browser is used to communicate directly with the
Modem and make changes to the configuration or monitor status.
Accessing the Web Manager
In order to use the web-based management software it will be necessary to use a computer that occupies the
same subnet as the Modem. The simplest way to do this for many users will be to use DHCP server that is
enabled by default on the Modem. You may also specify IP settings for your computer. The Modem has a default
IP address of 192.168.1.1 and a subnet mask of 255.255.255.0. Once you have accessed the configuration
software you can configure the Modem’s IP settings and DHCP server configuration to suit your preferences.
To use the web-based management software run the browser you have installed on your computer and direct it to
the Modem’s HTML interface using its LAN IP address. If this is the first time you are accessing the web-based
manager you must type its default IP address, 192.168.1.1 in the address bar of the browser. The URL in the
address bar should read: http://192.168.1.1. If you change the IP address you will use the new IP address to
access the web-based manager.
A new window will appear and you will be prompted for a user name and password. Use default user name
admin and password admin for first time set up.
Note: Be sure that the web browser on your computer is not configured to use a proxy server in the Internet
settings. In Windows Internet Explorer, you can check if a proxy server is enabled using the following procedure:
1.
In Windows, click on the Start button, go to Settings and choose Control Panel.
2.
In the Control Panel window, double-click on the Internet Options icon.
3.
Click the Connections tab and click on the LAN Settings button.
4.
Verify that the “ Use proxy server” option is NOT checked. If it is checked, click in the checked box to
deselect the option and click OK.
Alternatively you can access this same menu using the Tools pull down menu in Internet Explorer.
If this is the first time you are accessing the configuration manager and you simply want to establish a
connection to the Internet, you may want to read the section titled Configure the Modem in the previous chapter.
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DSL-302T ADSL Modem User’s Guide
DHCP Configuration
Use the DHCP Configuration window to configure the Modem to act as a DHCP server for the LAN.
Figure 4-1. Setup – DHCP Configuration window
Configure LAN DHCP services by defining the following parameters:
Start IP
Type in the base address for the IP pool of unassigned IP addresses.
End IP
Type in the last address of the contiguous IP address range to be used by
the Modem for DHCP function.
Lease Time
This specifies the amount of time (in seconds) a client can lease an IP
address, from the dynamically allocated IP pool.
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DSL-302T ADSL Modem User’s Guide
Management IP
The IP address of the modem may be changed, but remember to take note of the new settings. A valid IP address
and subnet mask are needed to access the Web manager.
Figure 4-2. Setup – Management IP window
Make any desired changes, then, click Apply.
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DSL-302T ADSL Modem User’s Guide
Tools
Changing the User Name and Password
Before you configure the Modem and connect to the WAN, you should change the user name and password used
to access the web-based manager. Click on the Tools tab to access the Tools menu.
Figure 4-3. Opening Tools window
Then click on User Management to bring up the following window:
System Commands
These menu options are used to save setting, restart (reboot) the Modem or reset the configuration to the factory
settings.
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DSL-302T ADSL Modem User’s Guide
Figure 4-4. Tools – System Commands window
Save All
In order to save the configuration changes you have just made they must be saved to the Modem’s non-volatile
RAM by clicking on the Save All button.
Restart
Click the Restart button to restart the Modem. If you have not saved your changes, the Modem will revert to the
previously saved configuration upon rebooting the Modem.
Restore
The DSL-302T can be reset to the default configuration for all settings using the Restore option. This will also
change the both the LAN and WAN IP address of the device, so these will need to be reconfigured accordingly.
To perform a factory reset, click the Restore button. Since the IP settings will return to their default, you will
lose access to the Web Manager. To use the Web Manager interface, the LAN IP address will need to be
reconfigured.
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DSL-302T ADSL Modem User’s Guide
Remote Log
Use this menu to designate receiver stations for event messages form the Modem.
Figure 4-5. Tools – Remote Log window
To set up a destination for event messages:
1
Select the Log Level form the pull-down list.
2
Add and IP address of a server or station used to log event messages sent from the Modem.
3
Type an IP address in the Add an IP Address field and click the Add button to save the address on the list
of logging destinations.
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DSL-302T ADSL Modem User’s Guide
User Management
Use this menu to change the user name and password used to gain management access to the Modem.
Figure 4-6. Tools – User Management window
1.
Type the current User Name in the entry field provided.
2.
Type in the new Password in the entry field provided.
3.
Type in the new password again in the Confirm Password field.
4.
If desired, change the Idle Timeout value.
5.
Click Apply.
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DSL-302T ADSL Modem User’s Guide
Update Gateway
Figure 4-7. Tools – Update Gateway window
Use the Update Gateway feature to load the latest firmware for the device. You can obtain the latest version of
the DSL-302T firmware by logging onto the D-Link web site at www.dlink.com. Save the latest firmware
version to a file on your computer or an accessible TFTP server.
To upgrade firmware, type in the name and path of the file in the Select a Firmware image file space or click on
the Browse button to search for the file. Click the Update Gateway button to begin copying the file. The file
will load and restart automatically.
Use the Configuration –Backup & Restore features to store current settings to a file on your computer or to load
previously saved configuration files on the device.
To save the current settings to a configuration file on your computer, type in the full name and path in the Select
a Configuration file space or click on the Browse button to search for the file. Click the Back Up button to
initiate this action.
To load a saved configuration file from the computer, type in the full name and path in the Select a
Configuration file space or click on the Browse button to search for the file. Click the Restore button to initiate
this action.
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DSL-302T ADSL Modem User’s Guide
Ping Test
Figure 4-8. Tools – Ping Test window
This window is used to test the connection path of the Modem to another networked device with an IP address.
To Ping a device, first enter the IP address of the device that you wish to Ping into the first field, the Packet Size
(in bytes) in the second field, and finally, enter the number of times you wish the Ping function to attempt a
connection to the desired device into the third field. Click Test to start the Ping mechanism. The results of the
Ping will be shown in the result box in the bottom half of the window.
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DSL-302T ADSL Modem User’s Guide
Status
Figure 4-9. Opening Status window
Click the hyperlink for the desired Status window.
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DSL-302T ADSL Modem User’s Guide
Network Statistics
Figure 4-10. Status – Network Statistics window
Choose the desired interface at the top of the window and then click Refresh to view Ethernet network statistics.
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DSL-302T ADSL Modem User’s Guide
Connection Status
Figure 4-11. Status – Connection Status window
Click Refresh to view connection status information.
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DSL-302T ADSL Modem User’s Guide
DHCP Clients
Figure 4-12. Status – DHCP Clients window
This window displays the status of all current DHCP clients.
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DSL-302T ADSL Modem User’s Guide
Modem Status
Figure 4-13. Status – Modem Status window
This window displays the status of the modem as well as DSL statistics.
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DSL-302T ADSL Modem User’s Guide
Product Info.
Figure 4-14. Status – Product Info. window
This window displays product information including software versions.
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DSL-302T ADSL Modem User’s Guide
System Log
Figure 4-15. Status – System Log window
Click Refresh to get the most current system log information.
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DSL-302T ADSL Modem User’s Guide
Help
Figure 4-16. Opening Help window
Click on the item you want further information for on the window above.
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DSL-302T ADSL Modem User’s Guide
A
Technical Specifications
GENERAL
ITU G.992.1 (G.dmt)
RFC 1661 (PPP)
ITU G.992.2 (G.lite)
RFC 1994 (CHAP)
ITU G.994.1 (G.Hs)
RFC 1334 (PAP)
ITU-T Rec. I.361
RFC 2364 (PPP over ATM)
ITU-T Rec. I.610
RFC 1877
(Automatic IP assignment)
IEEE 802.3
Standards:
RFC 2516 (PPP over Ethernet)
IEEE 802.3u
Supports RFC 2131 and
RFC 2132 (DHCP)
IEEE 802.1d
RFC 1213 compliant
RFC 1483 (Bridged Ethernet)
RFC 1577 (IP over ATM)
Compatible with all T1.413
issue 2 (full rate DMT over
analog POTS), and CO DSLAM
equipment
Supports ATM Forum UNI V3.1
PVC
TCP/IP
DHCP
Protocols:
AAL5
G.dmt full rate: Downstream up to 8 Mbps
Data Transfer
Rate:
Upstream up to 640 Kbps
G.lite: Downstream up to 1.5 Mbps
Upstream up to 512 Kbps
RJ-11 port ADSL telephone line connection
Media Interface:
RJ-45 port for 10/100BASET Ethernet connection
USB port
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DSL-302T ADSL Modem User’s Guide
Physical and Environmental
DC Inputs:
Input: 100V ~ 240V AC 50 ~ 60Hz
Power Adapter:
Output: 9V AC, 1A
Power
Consumption:
3 Watts (max)
Operating
Temperature:
5° to 40° C (41° - 104° F)
Humidity:
5 to 95% (non-condensing)
Dimensions:
142 (W) x 117(D) x 31(H) mm
Weight:
202 g
EMI:
CE Class B, FCC Class B
Safety:
CSA 950, UL 1950, IEC 60950, EN 60950
Reliability:
Mean Time Between Failure (MTBF) min. 4 years
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DSL-302T ADSL Modem User’s Guide
B
IP Address Setup
The DSL-302T is designed to provide network administrators maximum flexibility for IP addressing on the
Ethernet LAN. The easiest IP setup choice in most cases is to let the Modem do it using DHCP, which is enabled
by default. This appendix briefly describes various options including DHCP, used for IP setup on a LAN. If you
are new to IP networking, the next appendix provides some background information on basic IP concepts.
Assigning Network IP Addresses
The IP address settings, which include the IP address, subnet mask and gateway IP address are the first and most
important internal network settings that need to be configured. The Modem is assigned a default LAN IP address
and subnet mask. If you do not have a preexisting IP network and are setting one up now, using the factory
default IP address settings can greatly ease the setup process. If you already have a preexisting IP network, you
can adjust the IP settings for the Modem to fit within your existing scheme.
Using the Default IP Address
The Modem is shipped with a preset default IP address setting of 192.168.1.1 for the LAN port. There are two
ways to use this default IP address, you can manually assign an IP address and subnet mask for each PC on the
LAN or you can instruct the Modem to automatically assign them using DHCP. The simplest method is to use
DHCP. The DHCP function is active by default.
Manual IP Address Assignment
Manually configuring IP settings for the LAN means you must manually set an IP address, subnet mask and IP
address of the default gateway (the Modem’s IP address) on each networked computer. The example listed
below describes IP configuration for computers running Windows 95 or Windows 98. Regardless of what
operating system is used on each workstation, the three network IP settings must be defined so the network
interface used by each workstation can be identified by the Modem, and vice versa. For detailed information
about configuring your workstations IP settings, consult the user’s guide included with the operating system or
the network interface card (NIC).
1.
In Windows 95/98, click on the Start button, go to Settings and choose Control Panel.
2.
In the window that opens, double-click on the Network icon.
3.
Under the Configuration tab, select the TCP/IP component and click Properties.
4.
Choose the Specify an IP address option and edit the address settings accordingly. Consult the table below
for IP settings on a Class C network.
Using Default IP without DHCP
Host
IP Address
Subnet Mask
Gateway IP
Modem
192.168.1.1
255.255.255.0
Computer #1
192.168.1.2
255.255.255.0
192.168.1.1
Computer #2
192.168.1.3
255.255.255.0
192.168.1.1
Computer #3
192.168.1.4
255.255.255.0
192.168.1.1
IP Setup - Example #1
Please note that when using the default IP address as in the above example, the first three numbers in the IP
address must always be the same with only the fourth number changing. The first three numbers define the
network IP address (all machines must belong to the same IP network), while the last number denotes the host IP
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DSL-302T ADSL Modem User’s Guide
address (each computer must have a unique address to distinguish it on the network). The IP address scheme
used in Example #1 can be used for any LAN that requires up to 253 separate IP addresses (excluding the
Modem). Notice that the subnet mask is the same for all machines and the default gateway address is the LAN IP
address of the Modem.
It is a good idea to make a note of each device’s IP address for reference during troubleshooting or when adding
new stations or devices.
Using DHCP
The second way to use the default settings is to allow the Modem to automatically assign IP settings for
workstation using DHCP. To do this, simply make sure your computers’ IP addresses are set to 0.0.0.0 (under
Windows, choose the option Obtain an IP address automatically in the TCP/IP network component described
above). When the computers are restarted, their IP settings will automatically be assigned by the Modem. The
Modem is set by default to use DHCP.
Changing the IP Address of the Modem
When planning your LAN IP address setup, you may use any scheme allowed by rules that govern IP assignment.
It may be more convenient or easier to remember an IP scheme that use a different address for the Modem. Or
you may be installing the Modem on a network that has already established the IP settings. Changing the IP
address is a simple matter and can be done using the web manager. If you are incorporating the Modem into a
LAN with an existing IP structure, be sure to disable the DHCP function.
An IP addressing scheme commonly used for Ethernet LANs establishes 10.0.0.1 as the base address for the
network. Using Example #2 below, the Modem is assigned the base address 10.0.0.1 and the remaining
addresses are assigned manually or using DHCP.
Alternative IP Assignment
Host
IP Address
Subnet Mask
Gateway IP
Modem
10.0.0.1
255.255.255.0
Computer #1
10.0.0.2
255.255.255.0
10.0.0.1
Computer #2
10.0.0.3
255.255.255.0
10.0.0.1
Computer #3
10.0.0.4
255.255.255.0
10.0.0.1
IP Setup - Example #2
These two examples are only examples you can use to help you get started. If you are interested in more
advanced information on how to use IP addressing on a LAN there are numerous resources freely available on
the Internet. There are also many books and chapters of books on the subject of IP address assignment, IP
networking and the TCP/IP protocol suite.
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DSL-302T ADSL Modem User’s Guide
C
IP Concepts
This appendix describes some basic IP concepts, the TCP/IP addressing scheme and show how to assign IP
Addresses.
When setting up the Modem, you must make sure it has a valid IP address. Even if you will not use the WAN
port (ADSL port), you should, at the very least, make sure the Ethernet LAN port is assigned a valid IP address.
This is required for telnet, in-band SNMP management, and related functions such as “ trap” handling and TFTP
firmware download.
IP Addresses
The Internet Protocol (IP) was designed for routing data between network sites all over the world, and was later
adapted for routing data between networks within any site (often referred to as “ subnetworks” or “ subnets”). IP
includes a system by which a unique number can be assigned to each of the millions of networks and each of the
computers on those networks. Such a number is called an IP address.
To make IP addresses easy to understand, the originators of IP adopted a system of representation called “ dotted
decimal” or “ dotted quad” notation. Below are examples of IP addresses written in this format:
201.202.203.204
189.21.241.56
125.87.0.1
Each of the four values in an IP address is the ordinary decimal (base 10) representation of a value that a
computer can handle using eight “ bits” (binary digits — 1s and 0s). The dots are simply convenient visual
separators.
Zeros are often used as placeholders in dotted decimal notation; 189.21.241.56 can therefore also appear as
189.021.241.056.
IP networks are divided into three classes on the basis of size. A full IP address contains a network portion and a
“ host” (device) portion. The network and host portions of the address are different lengths for different classes of
networks, as shown in the table below.
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DSL-302T ADSL Modem User’s Guide
Networks attached to the Internet are assigned class types that determine the maximum number of possible hosts
per network. The previous figure illustrates how the net and host portions of the IP address differ among the
three classes. Class A is assigned to networks that have more than 65,535 hosts; Class B is for networks that
have 256 to 65534 hosts; Class C is for networks with less than 256 hosts.
IP Network Classes
Class
Maximum Number
of Networks in
Class
Network Addresses (Host
Portion in Parenthesis)
Maximum Number of
Hosts per Network
A
126
1(.0.0.0) to 126(.0.0.0)
16,777,214
B
16,382
128.1(.0.0) to 191.254(.0.0)
65,534
C
2,097,150
192.0.1(.0) to 223.255.254(.0)
254
Note: All network addresses outside of these ranges (Class D and E) are either reserved or set aside for
experimental networks or multicasting.
When an IP address's host portion contains only zero(s), the address identifies a network and not a host. No
physical device may be given such an address.
The network portion must start with a value from 1 to 126 or from 128 to 223. Any other value(s) in the network
portion may be from 0 to 255, except that in class B the network addresses 128.0.0.0 and 191.255.0.0 are
reserved, and in class C the network addresses 192.0.0.0 and 223.255.255.0 are reserved.
The value(s) in the host portion of a physical device's IP address can be in the range of 0 through 255 as long as
this portion is not all-0 or all-255. Values outside the range of 0 to 255 can never appear in an IP address (0 to
255 is the full range of integer values that can be expressed with eight bits).
The network portion must be the same for all the IP devices on a discrete physical network (a single Ethernet
LAN, for example, or a WAN link). The host portion must be different for each IP device — or, to be more
precise, each IP-capable port or interface — connected directly to that network.
The network portion of an IP address will be referred to in this manual as a network number; the host portion
will be referred to as a host number.
To connect to the Internet or to any private IP network that uses an Internet-assigned network number, you must
obtain a registered IP network number from an Internet-authorized network information center. In many
countries you must apply through a government agency, however they can usually be obtained from your
Internet Service Provider (ISP).
If your organization's networks are, and will always remain, a closed system with no connection to the Internet
or to any other IP network, you can choose your own network numbers as long as they conform to the above
rules.
If your networks are isolated from the Internet, e.g. only between your two branch offices, you can assign any IP
Addresses to hosts without problems. However, the Internet Assigned Numbers Authority (IANA) has reserved
the following three blocks of IP Addresses specifically for private (stub) networks:
Class
Beginning Address
Ending Address
A
10.0.0.0
10.255.255.255
B
172.16.0.0
172.31.255.255
C
192.168.0.0
192.168.255.255
It is recommended that you choose private network IP Addresses from the above list. For more information on
address assignment, refer to RFC 1597, Address Allocation for Private Internets and RFC 1466, Guidelines for
Management of IP Address Space.
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DSL-302T ADSL Modem User’s Guide
Subnet Mask
In the absence of subnetworks, standard TCP/IP addressing may be used by specifying subnet masks as shown
below.
IP Class
Subnet Mask
Class A
255.0.0.0
Class B
255.255.0.0
Class C
255.255.255.0
Subnet mask settings other than those listed above add significance to the interpretation of bits in the IP address.
The bits of the subnet mask correspond directly to the bits of the IP address. Any bit an a subnet mask that is to
correspond to a net ID bit in the IP address must be set to 1.
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DSL-302T ADSL Modem User’s Guide
D
Microfilters and Splitters
Most ADSL clients will be required to install a simple device that prevents the ADSL line from interfering with
regular telephone services. These devices are commonly referred to as microfilters or sometimes called
(inaccurately) line splitters. They are easy to install and use standard telephone connectors and cable.
Some ADSL service providers will send a telecommunications technician to modify the telephone line, usually
at the point where the telephone line enters the building. If a technician has divided or split your telephone line
into two separate lines - one for regular telephone service and the other for ADSL –then you do not need to use
any type of filter device. Follow the instructions given to you by your ADSL service provider about where and
how you should connect the Modem to the ADSL line.
Microfilters
Unless you are instructed to use a “ line splitter” (see below), it will be necessary to install a microfilter (low pass
filter) device for each telephone or telephone device (answering machines, Faxes etc.) that share the line with the
ADSL service. Microfilters are easy-to-install, in-line devices, which attach to the telephone cable between the
telephone and wall jack. Microfilters that install behind the wall plate are also available. A typical in-line
microfilter installation is shown in the diagram below.
Microfilter Installation
Important: Do not install the microfilter between the Modem and the telephone jack. Microfilters are only
intended for use with regular telephones, Fax machines and other regular telephone devices.
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DSL-302T ADSL Modem User’s Guide
Line Splitter
If you are instructed to use a “ line splitter”, you must install the device between the Modem and the phone jack.
Use standard telephone cable with standard RJ-11 connectors. The splitter has three RJ-11 ports used to connect
to the wall jack, the Modem and if desired, a telephone or telephone device. The connection ports are typically
labeled as follows:
Line - This port connects to the wall jack.
ADSL –This port connects to the Modem.
Phone –This port connects to a telephone or other telephone device.
The diagram below illustrates the proper use of the splitter.
ADSL
Device
Line Splitter Installation
50
Offices
Australia
D-Link Australia
1 Giffnock Avenue, North Ryde, NSW 2113,
Sydney, Australia
TEL: 61-2-8899-1800 FAX: 61-2-8899-1868
TOLL FREE (Australia): 1800-177100
URL: www.dlink.com.au
E-MAIL: support@dlink.com.au & info@dlink.com.au
Brazil
D-Link Brasil Ltda.
Edificio Manoel Tabacow Hydal,
Rua Tavares Cabral 102 Sala 31, 05423-030
Pinheiros, Sao Paulo, Brasil
TEL: (55 11) 3094 2910 to 2920 FAX: (55 11) 3094 2921
E-MAIL: efreitas@dlink.cl
Canada
D-Link Canada
2180 Winston Park Drive, Oakville,
Ontario, L6H 5W1 Canada
TEL: 1-905-829-5033 FAX: 1-905-829-5095
TOLL FREE: 1-800-354-6522 URL: www.dlink.ca
FTP: ftp.dlinknet.com E-MAIL: techsup@dlink.ca
Chile
D-Link South America (Sudamérica)
Isidora Goyenechea 2934 Of. 702, Las Condes Fono,
2323185, Santiago, Chile, S. A.
TEL: 56-2-232-3185 FAX: 56-2-232-0923
URL: www.dlink.cl
E-MAIL: ccasassu@dlink.cl & tsilva@dlink.cl
China
D-Link China
15th Floor, Science & Technology Tower,
No.11, Baishiqiao Road, Haidan District, 100081 Beijing, China
TEL: 86-10-68467106 FAX: 86-10-68467110
URL: www.dlink.com.cn
E-MAIL: liweii@digitalchina.com.cn
Denmark
D-Link Denmark
Naverland Denmark, Naverland 2, DK-2600 Glostrup, Copenhagen, Denmark
TEL: 45-43-969040 FAX:45-43-424347
URL: www.dlink.dk E-MAIL: info@dlink.dk
Egypt
D-Link Middle East
7 Assem Ebn Sabet Street, Heliopolis, Cairo, Egypt
TEL: 202-245-6176 FAX: 202-245-6192
URL: www.dlink-me.com
E-MAIL: support@dlink-me.com & fateen@dlink-me.com
Finland
D-Link Finland
Pakkalankuja 7A, FIN–0150 Vantaa, Finland
TEL: 358-9-2707-5080 FAX: 358-9-2707-5081
URL: www.dlink-fi.com
France
D-Link France
Le Florilege, No. 2, Allée de la Fresnerie,
78330 Fontenay-le-Fleury, France
TEL: 33-1-3023-8688 FAX: 33-1-3023-8689
URL: www.dlink-france.fr
E-MAIL: info@dlink-france.fr
Germany
D-Link Central Europe (D-Link Deutschland GmbH)
Schwalbacher Strasse 74, D-65760 Eschborn, Germany
TEL: 49-6196-77990 FAX: 49-6196-7799300
URL: www.dlink.de
BBS: 49-(0) 6192-971199 (analog)
BBS: 49-(0) 6192-971198 (ISDN)
INFO: 00800-7250-0000 (toll free)
HELP: 00800-7250-4000 (toll free)
REPAIR: 00800-7250-8000 E-MAIL: info@dlink.de
India
D-Link India
Plot No.5, Bandra-Kurla Complex Rd., Off Cst Rd.,
Santacruz (East), Mumbai, 400 098 India
TEL: 91-022-652-6696/6578/6623
FAX: 91-022-652-8914/8476
URL: www.dlink-india.com & www.dlink.co.in
E-MAIL: service@dlink.india.com & tushars@dlink-india.com
Italy
D-Link Mediterraneo Srl/D-Link Italia
Via Nino Bonnet n. 6/B, 20154, Milano, Italy
TEL: 39-02-2900-0676 FAX: 39-02-2900-1723
URL: www.dlink.it E-MAIL: info@dlink.it
Japan
D-Link Japan
10F, 8-8-15 Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan
TEL: 81-3-5434-9678 FAX: 81-3-5434-9868
URL: www.d-link.co.jp E-MAIL: kida@d-link.co.jp
Netherlands
D-Link Benelux
Fellenoord 130 5611 ZB, Eindhoven, The Netherlands
TEL: 31-40-2668713 FAX: 31-40-2668666
URL: www.d-link-benelux.nl & www.dlink-benelux.be
E-MAIL: info@dlink-benelux.nl & info@dlink-benelux.be
Norway
D-Link Norway
Waldemar Thranesgate 77, 0175 Oslo, Norway
TEL: 47-22-99-18-90 FAX: 47-22-20-70-39 SUPPORT: 800-10-610
URL: www.dlink.no
Russia
D-Link Russia
Michurinski Prospekt 49, 117607 Moscow, Russia
TEL: 7-095-737-3389 & 7-095-737-3492
FAX: 7-095-737-3390 URL: www.dlink.ru
E-MAIL: vl@dlink.ru
Singapore
D-Link International
1 International Business Park, #03-12 The Synergy,
Singapore 609917
TEL: 6-6774-6233 FAX: 6-6774-6322
E-MAIL: info@dlink.com.sg URL: www.dlink-intl.com
South Africa
D-Link South Africa
Unit 2, Parkside, 86 Oak Avenue, Highveld Technopark,
Centurion, Gauteng, South Africa
TEL: 27-12-665-2165 FAX: 27-12-665-2186
URL: www.d-link.co.za E-MAIL: attie@d-link.co.za
Spain
D-Link Iberia (Spain and Portugal)
Sabino de Arana, 56 bajos, 08028 Barcelona, Spain
TEL: 34 93 409 0770 FAX: 34 93 491 0795
URL: www.dlink.es E-MAIL: info@dlink.es
Sweden
D-Link Sweden
P. O. Box 15036, S-167 15 Bromma, Sweden
TEL: 46-8-564-61900 FAX: 46-8-564-61901
URL: www.dlink.se E-MAIL: info@dlink.se
Taiwan
D-Link Taiwan
2F, No. 119 Pao-chung Road, Hsin-tien, Taipei, Taiwan
TEL: 886-2-2910-2626 FAX: 886-2-2910-1515
URL: www.dlinktw.com.tw E-MAIL: dssqa@tsc.dlinktw.com.tw
Turkey
D-Link Middle East
Deniz Bilgisayar, Buyukdere Cad. Naci Kasim Sk., No. 5
Mecidiyekoy, Istanbul, Turkey
TEL: 90-212-213-3400 FAX: 90-212-213-3420
E-MAIL: smorovati@dlink-me.com
U.A.E.
D-Link Middle East
CHS Aptec (Dubai), P.O. Box 33550 Dubai, United Arab Emirates
TEL: 971-4-366-885 FAX: 971-4-355-941
E-MAIL: Wxavier@dlink-me.com
U.K.
D-Link Europe (United Kingdom) Ltd
4th Floor, Merit House, Edgware Road, Colindale, London
NW9 5AB United Kingdom
TEL: 44-020-8731-5555 SALES: 44-020-8731-5550
FAX: 44-020-8731-5511 SALES: 44-020-8731-5551
BBS: 44 (0) 181-235-5511
URL: www.dlink.co.uk E-MAIL: info@dlink.co.uk
U.S.A.
D-Link U.S.A.
17575 Mt. Herrmann, Fountain Valley, CA 92708
TEL: 1-714-885-6000 FAX: 1-866-743-4905
INFO: 1-800-326-1688 URL: www.dlink.com
E-MAIL: tech@dlink.com & support@dlink.com
Registration Card
Print, type or use block letters.
Your name: Mr./Ms__________________________________________________________________________
Organization: ____________________________________________Dept.______________________________
Your title at organization:_____________________________________________________________________
Telephone:_________________________________________ Fax:___________________________________
Organization's full address:___________________________________________________________________
_________________________________________________________________________________________
Country:__________________________________________________________________________________
Date of purchase (Month/Day/Year):_______________________________________
Product
Model
Product Serial No.
* Product installed in type of
computer (e.g., Compaq 486)
* Product installed in computer serial No.
(* Applies to adapters only)
Product was purchased from:
Reseller's name:____________________________________________________________________________
Telephone:_________________________________________ Fax:___________________________________
Reseller's full address:_______________________________________________________________________
_________________________________________________________________________________________
Answers to the following questions help us to support your product:
1. Where and how will the product primarily be used?
oHome oOffice oTravel oCompany Business oHome Business oPersonal Use
2. How many employees work at installation site?
o1 employee o2-9 o10-49 o50-99 o100-499 o500-999 o1000 or more
3. What network protocol(s) does your organization use ?
oXNS/IPX oTCP/IP oDECnet oOthers_______________________________________________________
4. What network operating system(s) does your organization use ?
oD-Link LANsmart oNovell NetWare oNetWare Lite oSCO Unix/Xenix oPC NFS o3Com 3+Open
oBanyan Vines oDECnet Pathwork oWindows NT oWindows NTAS oWindows '95
oOthers________________________________________________________________________________
5. What network management program does your organization use ?
oD-View oHP OpenView/Windows oHP OpenView/Unix oSunNet Manager oNovell NMS
oNetView 6000 oOthers___________________________________________________________________
6. What network medium/media does your organization use ?
oFiber-optics oThick coax Ethernet oThin coax Ethernet o10BASE-T UTP/STP
o100BASE-TX o100BASE-T4 o100VGAnyLAN oOthers_________________________________________
7. What applications are used on your network?
oDesktop publishing oSpreadsheet oWord processing oCAD/CAM
oDatabase management oAccounting oOthers_________________________________________________
8. What category best describes your company?
oAerospace oEngineering oEducation oFinance oHospital oLegal oInsurance/Real Estate oManufacturing
oRetail/Chainstore/Wholesale oGovernment oTransportation/Utilities/Communication oVAR
oSystem house/company oOther____________________________________________________________
9. Would you recommend your D-Link product to a friend?
oYes oNo oDon't know yet
10.Your comments on this product? _________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________