Dlink DSL-2740R User Manual
Table of Contents
Table of Contents
Product Overview ....................................................................................... 3
Package Contents ........................................................................................... 3
System Requirements ....................................................................................4
Introduction ......................................................................................................5
Features ..............................................................................................................6
Hardware Overview ........................................................................................ 7
Connections .......................................................................................7
Hardware Overview ........................................................................................ 8
LEDs ....................................................................................................... 8
Installation ................................................................................................... 9
Before you Begin ............................................................................................. 9
Installation Notes ..........................................................................................10
Information you will need from your ADSL service provider ........12
Information you will need about the DSL-2740R ..............................14
Information you will need about your LAN or computer ...............15
Wireless Installation Notes .........................................................................16
Device Installation ........................................................................................17
Power on Router ............................................................................................17
Factory Reset Button ....................................................................................18
Network Connections .................................................................................18
Conguration ............................................................................................20
Web-based Conguration Utility .............................................................20
Setup Wizard ...................................................................................................21
Time ...................................................................................................................40
Logout ......................................................................................................42
Advanced ................................................................................................43
Port Forwarding ....................................................................................43
Application Rules ..........................................................................................44
Inbound Filter .................................................................................................45
IP/Mac Filter.....................................................................................................46
DNS Setup ........................................................................................................47
Firewall & DMZ ...............................................................................................49
Advanced Wireless ........................................................................................51
Wi-Fi Protected Setup .................................................................................53
Advanced LAN ................................................................................................54
Maintenance ...................................................................................................55
Password ..........................................................................................................55
Save/Restore Settings ..................................................................................56
Firmware Update ...........................................................................................57
Diagnostics .............................................................................................58
System Log ......................................................................................................59
Status .................................................................................................................60
Device Info .......................................................................................................60
Connected Clients .........................................................................................63
Statistics ............................................................................................................64
Troubleshooting .......................................................................................66
Internet Setup ................................................................................................26
Wireless .............................................................................................................29
Local Network .................................................................................................38
Wireless Basics ..........................................................................................68
Networking Basics .................................................................................... 71
Technical Specications ..........................................................................73
2D-Link DSL-2740R
Section 1 - Product Overview
Product Overview
Package Contents
• DSL-2740R Wireless N ADSL2+ Modem Router
• 2 non-detachable Antennas (MIMO 2x2)
• Power Adapter
• CD-ROM with Installation Wizard, User Manual, and Special Oers
• One twisted-pair telephone cable used for ADSL connection
• One straight-through Ethernet cable
• One Quick Installation Guide
Note: Using a power supply with a dierent voltage rating (12 V/ 1 A) than the
one included with the DSL-2740R will cause damage and void the warranty for
this product.
3D-Link DSL-2740R
Section 1 - Product Overview
• ADSL Internet service
• Computer with:
• 200MHz Processor
• 64 MB Memory
• CD-ROM Drive
• Ethernet Adapter with TCP/IP installed
• Windows 7/Vista/XP/2000
• MAC OS
• Internet Explorer 6 or higher, FireFox 1.5
• D-Link Click’s Connect Utility
System Requirements
4D-Link DSL-2740R
Section 1 - Product Overview
Introduction
High-Speed ADSL2/2+ Internet Connection
Latest ADSL2/2+ standards provide Internet transmission speeds of up to 24 Mbps downstream and 1 Mbps upstream.*
High-Performance Wireless
Embedded 802.11n technology for high-speed wireless connection, complete compatibility with 802.11b/g wireless devices.
Total Security
Firewall protection from Internet attacks, user access control, WPA/WPA2 wireless security.
Ultimate Internet Connection
The DSL-2740R ADSL2+ Router is a versatile, high-performance remote router for home and the small oce. With integrated ADSL2/2+ supporting
download speeds of up to 24 Mbps, rewall protection, Quality of Service (QoS), 802.11n wireless LAN, and 4 Ethernet switch ports, this router
provides all the functions that a home or small oce needs to establish a secure and high-speed remote link to the outside world.
Ultimate Wireless Connection With Maximum Security
This router provides maximum wireless performance. Just connect this router to a computer interface and stay connected from virtually anywhere
at home and in the oce. The router can be used with 802.11b/g/n wireless networks to enable signicantly improved reception. It supports WPA/
WPA2 and WEP for exible user access security and data encryption methods.
Firewall Protection & QoS
Security features prevents unauthorized access to your home or oce network, be it from wireless devices or from the Internet. The router provides
rewall security using Stateful Packet Inspection (SPI) and hacker attack logging for Denial of Service (DoS) attack protection. SPI inspects the
contents of all incoming packet headers before deciding what packets are allowed to pass through. Router access control is featured with packet
ltering based on port and source/destination MAC/IP addresses. For Quality of Service (QoS), the router supports multiple priority queues in
order to enable a group of home or oce users to experience the benet of having a smooth network connection of inbound and outbound data
without being concerned about trac congestion. This QoS support allows users to enjoy a fast ADSL transmission for applications such as VoIP
and streaming multimedia over the Internet.
*Maximum wireless signal rate derived from IEEE standard 802.11n specifications. Actual data throughput will vary. Network conditions and environmental factors, including volume of network traffic, building materials, and construction, and network overhead, can lower the actual data throughput rate.
Environmental factors will adversely affect wireless signal range.
5D-Link DSL-2740R
Section 1 - Product Overview
Features
• Faster Wireless Networking - The DSL-2740R provides a wireless connection of up to 300 Mbps* with other 802.11n wireless clients. This
capability allows users to fully participate in real-time activities online, such as video streaming, online gaming, and real-time audio.
• Compatible with 802.11b and 802.11g Devices - The DSL-2740R is still fully compatible with the IEEE 802.11b and g standards, so it can
connect with existing 802.11b and g PCI, USB, and Cardbus adapters.
• DHCP Support - Dynamic Host Conguration Protocol automatically and dynamically assigns all LAN IP settings to each host on your network.
This eliminates the need to recongure every host whenever changes in network topology occur.
• Network Address Translation (NAT) - For small oce environments, the DSL-2740R allows multiple users on the LAN to access the Internet
concurrently through a single Internet account. This provides Internet access to everyone in the oce for the price of a single user. NAT improves
network security in eect by hiding the private network behind one global and visible IP address. NAT address mapping can also be used to
link two IP domains via a LAN-to-LAN connection.
• Precise ATM Trac Shaping - Trac shaping is a method of controlling the ow rate of ATM data cells. This function helps to establish the
Quality of Service for ATM data transfer.
• High Performance - Very high rates of data transfer are possible with the Router including a downsteam bit rate of up to 24 Mbps using the
G.dmt standard. (For ADSL2+)
• Full Network Management - The DSL-2740R incorporates SNMP (Simple Network Management Protocol) support for web-based management
and text-based network management via Telnet connection.
• Easy Installation - The DSL-2740R uses a web-based graphical user interface program for convenient management access and easy setup. Any
common web browser software can be used to manage the router.
*Maximum wireless signal rate derived from IEEE standard 802.11n specifications. Actual data throughput will vary. Network conditions and environmental factors, including volume of network traffic, building materials and construction, and network overhead, can lower the actual data throughput rate.
Environmental factors will adversely affect wireless signal range.
6D-Link DSL-2740R
Section 1 - Product Overview
Hardware Overview
Connections
RESET BUTTON
To manually reset the device, depress the
button with the power on for between ten
and fifteen seconds.
ADSL PORT
Use the ADSL cable to connect to your telephone
line (RJ-11 port).
FOUR ETHERNET PORTS
Use the Ethernet ports to connect the
router to your Ethernet LAN or Ethernet
devices.
WIRELESS ON/OFF
SWITCH
Turns wireless
function on or off.
POWER INSERT
Use the adapter shipped with the router
to connect to a power source.
POWER BUTTON
Press this button to turn the unit on
or off.
7D-Link DSL-2740R
Section 1 - Product Overview
Hardware Overview
LEDs
POWER
A steady green light indicates the unit is
powered on. When the device is powered
off, this is dark.
WLAN
A steady green light indicates a wireless
connection. A blinking green light indicates activity
on the WLAN.
DSL
A 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.
LAN
A solid green light indicates a valid link at
startup. These lights blink when there is a
connection on any of the Ethernet ports.
INTERNET
A steady green light indicates a successful
Internet connection. A steady red light
indicates a failed Internet connection. The LED
is dark if the router is powered off.
8D-Link DSL-2740R
Section 2 - Installation
Installation
This section will walk you through the installation process. Placement of the router is very important. Do not place the router in an enclosed area
such as a closet, cabinet, or in the attic or garage.
Before you Begin
Please read and make sure you understand all the prerequisites for proper installation of your new router. Have all the necessary information and
equipment on hand before beginning the installation.
9D-Link DSL-2740R
Section 2 - Installation
Installation Notes
In order to establish a connection to the Internet it will be necessary to provide information to the router that will be stored in its memory. For some
users, only their account information (Username and Password) is required. For others, various parameters that control and dene the Internet
connection will be required. You can print out the two pages below and use the tables to list this information. This way you have a hard copy of
all the information needed to setup the router. If it is necessary to recongure the device, all the necessary information can be easily accessed. Be
sure to keep this information safe and private.
Low Pass Filters
Since ADSL and telephone services share the same copper wiring to carry their respective signals, a ltering mechanism may be necessary to
avoid mutual interference. A low pass lter device can be installed for each telephone that shares the line with the ADSL line. These lters 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 lters with your installation.
Operating Systems
The DSL-2740R uses an HTML-based web interface for setup and management. The web conguration 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.
Web Browser
Any mainstream web browser can be used to congure the router using the web conguration management software. The program is designed to
work best with more recently released browsers such as Opera, Microsoft Internet Explorer® version 6.0, Netscape Navigator® version 6.2.3, 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 router must be able to connect to it through the Ethernet port on the router. 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 router. If you must install an adapter, follow the
installation instructions that come with the Ethernet NIC adapter.
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Section 2 - Installation
802.11 Wireless LAN Conguration
All the 802.11 wireless LAN settings may be congured on a single page using the web-based manager. For basic wireless communication you
need to decide what channel to use and what SSID to assign. These two settings must be the same for any wireless workstations or other wireless
access point that communicate with the DSL-2740R through the wireless interface.
Security for wireless communication can be accomplished in a number of ways. The DSL-2740R supports WPA (Wi-Fi Protected Access), WPA2, and
mixed WPA/WPA2. Wireless access can also be controlled by selecting MAC addresses that are allowed to associate with the device. Please read the
section on Wireless Conguration.
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 as 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 router itself.
If your ADSL service is being delivered through a PPPoE or PPPoA connection, the information needed to establish and maintain the Internet
connection can be stored in the router. 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 router, or similar rewall 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 conguration
that may be required.
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Section 2 - 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.co.uk. 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.
WAN Setting / Connection Type
These settings describe the method your ADSL service provider uses to transport data between the Internet and your computer. Most users
will use the default settings. You may need to specify one of the following WAN Setting and Connection Type congurations (Connection Type
settings listed in parenthesis):
• PPPoE/PPoA (PPPoE LLC, PPPoA LLC or PPPoA VC-Mux)
• Bridge Mode (1483 Bridged IP LLC or 1483 Bridged IP VC Mux)
• IPoA/MER (Static IP Address) (Bridged IP LLC, 1483 Bridged IP VC Mux, 1483 Routed IP LLC, 1483 Routed IP VC-Mux or IPoA)
• MER (Dynamic IP Address) (1483 Bridged IP LLC or 1483 Bridged IP VC-Mux)
Modulation Type
ADSL uses various standardized modulation techniques to transmit data over the allotted signal frequencies. Some users may need to change
the type of modulation used for their service. The default DSL modulation (ADSL2+ Multi-Mode) used for the router automatically detects all
types of ADSL, ADSL2, and ADSL2+ modulation. However, if you are instructed to specify the modulation type used for the router, you may
choose among the numerous options available on the Modulation Type drop-down menu on the ADSL Conguration window (Advanced >
ADSL).
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 router
supports the PAP and CHAP protocols.
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Section 2 - Installation
VPI
Most users will not be required to change this setting. The Virtual Path Identier (VPI) is used in conjunction with the Virtual Channel Identier
(VCI) to identify the data path between your ADSL service provider’s network and your computer. If you are setting up the router for multiple
virtual connections, you will need to congure the VPI and VCI as instructed by your ADSL service provider for the additional connections. This
setting can be changed in the WAN Settings window of the web management interface.
VCI
Most users will not be required to change this setting. The Virtual Channel Identier (VCI) used in conjunction with the VPI to identify the data
path between your ADSL service provider’s network and your computer. If you are setting up the router for multiple virtual connections, you will
need to congure the VPI and VCI as instructed by your ADSL service provider for the additional connections. This setting can be changed in the
WAN Settings window of the web management interface.
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Section 2 - Installation
Information you will need about the DSL-2740R
Username
This is the username needed to access the router’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 router is “admin.” The user cannot change this.
Password
This is the password you will be prompted to enter when you access the router’s management interface. The default Password is “admin.” The
user may change this.
LAN IP addresses for the DSL-2740R
This is the IP address you will enter into the Address eld of your web browser to access the router’s conguration graphical user interface (GUI)
using a web browser. The default IP address is 192.168.1.1. 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-2740R
This is the subnet mask used by the DSL-2740R, and will be used throughout your LAN. The default subnet mask is 255.255.255.0. This can be
changed later.
14D-Link DSL-2740R
Section 2 - Installation
Information you will need about your LAN or computer
Ethernet NIC
If your computer has an Ethernet NIC, you can connect the DSL-2740R to this Ethernet port using an Ethernet cable. You can also use the
Ethernet ports on the DSL-2740R to connect to other computers or Ethernet devices.
DHCP Client status
Your DSL-2740R ADSL Router is congured, 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-2740R will assign are from 192.168.1.2 to
192.168.1.254. Your computer (or computers) needs to be congured to Obtain an IP address automatically (that is, they need to be congured
as DHCP clients).
It is recommended that you collect and record this information here, or in some other secure place, in case you have to re-congure your ADSL
connection in the future.
Once you have the above information, you are ready to setup and congure your DSL-2740R Wireless ADSL Router.
15D-Link DSL-2740R
Section 2 - Installation
Wireless Installation Notes
DSL-2740R lets you access your network using a wireless connection from virtually anywhere within the operating range of your wireless network.
Keep in mind, however, that the number, thickness, and location of walls, ceilings, or other objects that the wireless signals must pass through, may
limit the range. Typical ranges vary depending on the types of materials and background RF (radio frequency) noise in your home or business. The
key to maximizing wireless range is to follow these basic guidelines:
1. Keep the number of walls and ceilings between the D-Link router and other network devices to a minimum - each wall or ceiling can reduce
your adapter’s range from 3-90 feet (1-30 meters.) Position your devices so that the number of walls or ceilings is minimized.
2. Be aware of the direct line between network devices. A wall that is 1.5 feet thick (0.5 meters), at a 45-degree angle appears to be almost 3
feet (1 meter) thick. At a 2-degree angle it looks over 42 feet (14 meters) thick! Position devices so that the signal will travel straight through
a wall or ceiling (instead of at an angle) for better reception.
3. Building materials make a dierence. A solid metal door or aluminum studs may have a negative eect on range. Try to position access
points, wireless routers, and computers so that the signal passes through drywall or open doorways. Materials and objects such as glass,
steel, metal, walls with insulation, water (sh tanks), mirrors, le cabinets, brick, and concrete will degrade your wireless signal.
4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that generate RF noise.
5. If you are using 2.4GHz cordless phones or X-10 (wireless products such as ceiling fans, lights, and home security systems), your wireless
connection may degrade dramatically or drop completely. Make sure your 2.4GHz phone base is as far away from your wireless devices as
possible. The base transmits a signal even if the phone in not in use.
16D-Link DSL-2740R
Section 2 - Installation
Device Installation
The DSL-2740R Wireless ADSL Router maintains three separate interfaces: an Ethernet LAN, a wireless LAN and an ADSL Internet (WAN) connection.
Carefully consider the router’s location’s suitability for connectivity for your Ethernet and wireless devices. You must have a functioning broadband
connection via a bridge device such as a Cable or ADSL modem in order to use the router’s WAN function.
Place the router in a location where it can be connected to various devices as well as to a power source. The router should not be located where it
will be exposed to moisture, direct sunlight 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 router can be placed on a shelf, desktop, or other stable platform. If possible, you should be able to see the LED indicators on the front if you
need to view them for troubleshooting.
Power on Router
The router must be used with the power adapter included with the device.
1. Insert the AC Power Adapter cord into the power receptacle located on the rear panel of the router and plug the adapter into a suitable
nearby power source.
2. Push down the Power button, and you should see the Power LED indicator light up and remain lit.
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
router will attempt to establish the ADSL connection. If the ADSL line is connected and the router is properly congured this should light
up after several seconds. If this is the rst time installing the device, some settings may need to be changed before the router can establish
a connection.
17D-Link DSL-2740R
Section 2 - Installation
Factory Reset Button
The router may be reset to the original factory default settings by using a ballpoint or paperclip to gently push down the reset button in the
following sequence:
1. Press and hold the reset button while the device is powered o.
2. Turn on the power.
3. Wait for 10~15 seconds and then release the reset button.
Remember that this will wipe out any settings stored in ash memory including user account information and LAN IP settings. The device settings
will be restored to the factory default IP address 192.168.1.1 and the subnet mask 255.255.255.0. The default management Username is “admin”
and the default Password is admin.
Network Connections
Connect ADSL Line
Use the ADSL cable included with the router to connect it to a telephone wall socket or receptacle. Plug one end of the cable into the ADSL port (RJ11 receptacle) on the rear panel of the router and insert the other end into the RJ-11 wall socket. If you are using a low pass lter 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 Router to Ethernet
The router 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 router to any
Ethernet device that is capable of operating at speeds higher than 10 Mbps, be sure that the device has auto-negotiation (NWay) enabled for the
connecting port. Use standard twisted-pair cable with RJ-45 connectors. The RJ-45 port on the router 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 router directly to a PC or server, use
a normal straight-through cable. You should use a crossed cable when connecting the router 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 router connection. Be sure that the cable connecting the LAN to the router does not exceed 100 meters.
18D-Link DSL-2740R
Section 2 - Installation
Hub or Switch to Router Connection
Connect the router to an uplink port (MDI-II) on an Ethernet hub or switch
with a straight-through cable as shown in this diagram. If you wish to
reserve the uplink port on the switch or hub for another device, connect
to any of the other MDI-X ports (1x, 2x, etc.) with a crossed cable.
Computer to Router Connection
You can connect the router directly to a 10/100BASE-TX Ethernet adapter
card (NIC) installed on a PC using the Ethernet cable provided as shown
in this diagram.
19D-Link DSL-2740R
Section 3 - Conguration
Conguration
This section will show you how to congure your new D-Link wireless router using the web-based conguration utility.
Web-based Conguration Utility
Connect to the router
To congure the WAN connection used by the router it is rst necessary to communicate with the router through its management interface, which
is HTML-based and can be accessed using a web browser. The easiest way to make sure your computer has the correct IP settings is to congure it
to use the DHCP server in the router. The next section describes how to change the IP conguration for a computer running a Windows operating
system to be a DHCP client.
To access the conguration utility, open a web browser such as Internet
Explorer and enter the IP address of the router (192.168.1.1).
Type admin for the User Name and admin in the Password eld.
20D-Link DSL-2740R
Section 3 - Conguration
Setup Wizard
This chapter is concerned with using your computer to congure the WAN connection. The following chapter describes the
various windows used to congure and monitor the router including how to change IP settings and DHCP server setup.
ADSL SETUP
Click on Setup Wizard to launch the Setup Wizard.
WELCOME TO D-LINK SETUP WIZARD
There are four steps for conguring your router. Click on Next to continue.
21D-Link DSL-2740R
Section 3 - Conguration
STEP 1: CHANGE YOUR DSL-2740R PASSWORD
The default password is admin. In order to secure your network, please
modify the password. Note: The Conrm Password entry must be the same
as that for New Password. Of course, you can click on Skip to ignore the step.
STEP 2: SET TIME AND DATE
TIME SETTING:
Please enable Automatically synchronize with Internet time servers if
you want to use the time server.
You can use the default time server web site or type any web server name you
want in the First NTP time server and the Second NTP time server elds.
Please select the time zone of your country in the Time Zone option.
If you need to enable daylight saving time, just click on the Enable Daylight
Saving checkbox. Daylight saving is a period from late Spring to early Fall.
Congure Daylight Saving Dates
Daylight Saving time starts in most parts of the United States on the second
Sunday of March. Each time zone in the United States starts Daylight Saving
time at 2 A.M. Thus, for the United States you should select March, Second,
Sunday, at 2:00 A.M for the Start.
22D-Link DSL-2740R