D-link Dsl-2750u User manual

DSL-2750U

User Manual

 
 
Contents
SAFETY PRECAUTION...................................................................................................... 1 
INTRODUCTION................................................................................................................. 1 
SYSTEM REQUIREMENTS................................................................................................ 2 
Features...................................................................................................................... 3 
INSTALLATION.................................................................................................................. 4 
Before You Begin........................................................................................................ 4 
Installation Notes......................................................................................................... 4 
Information you will need from your ADSL service provider........................................ 6 
Information you will need about your DSL-2750U Router......................................... 7 
Information you will need about your LAN or computer............................................... 8 
Hardware Description and Installation......................................................................... 9 
LED Indicators.................................................................................................... 9 
Best Location for Wireless Operation.................................................................11 
Connecting the Router.......................................................................................11 
TCP/IP Configuration On A PC...................................................................................14 
WEB CONFIGURATION....................................................................................................15 
Logging in the Router.................................................................................................15 
Setup..........................................................................................................................16 
Wizard................................................................................................................16 
Wireless.............................................................................................................26 
Local Network....................................................................................................29 
LAN IPv6............................................................................................................31 
Time and Date...................................................................................................31 
Logout................................................................................................................32 
Advanced...................................................................................................................33 
Advanced Wireless............................................................................................33 
Port Forwarding.................................................................................................37 
DMZ...................................................................................................................38 
SAMBA..............................................................................................................38 
3G Configuration................................................................................................39 
Parental Control.................................................................................................41 
Filtering Options.................................................................................................43 
QoS Configuration.............................................................................................46 
Firewall Setting..................................................................................................48 
DNS...................................................................................................................49 
Dynamic DNS....................................................................................................49 
Network Tools....................................................................................................50 
Routing ..............................................................................................................54 
Schedules..........................................................................................................56 
ALG ...................................................................................................................56 
NAT....................................................................................................................57 
FTPD Setting.....................................................................................................57 
FTPD Account....................................................................................................57 
DLNA.................................................................................................................58 
IP Tunnel............................................................................................................58 
Logout................................................................................................................60 
MANAGEMENT.........................................................................................................61 
Global IPv6 .......................................................................................................61 
System Management........................................................................................ 61 
Firmware Update...............................................................................................62 
Access Controls................................................................................................62 
Diagnosis..........................................................................................................64 
Log Configuration.............................................................................................. 65 
Logout...............................................................................................................65 
Status ........................................................................................................................ 65 
Help...........................................................................................................................65 
TROUBLESHOOTING ...................................................................................................... 66 
NETWORKING BASICS ................................................................................................... 68 
Check Your IP Address.............................................................................................68 
Statically Assigning an IP Address............................................................................69 
TECHNICAL SPECIFICATIONS....................................................................................... 70 

Section 1 –Product Overview

D-Link DSL-2750U User Manual

Safety Precaution

Follow the following instructions to prevent the device from risks and damage

Use the power adapter in the package.

An overburden power outlet or damaged lines and plugs may cause electric shock or fire accident. Check the power cords regularly. If you

find any damage, replace it at once.

Proper space left for heat dissipation is necessary to avoid overheating. The holes on the device are designed for heat dissipation to ensure

running normally. Do not cover these heat dissipation holes.

Do not put this device close to a heat source or high temperature place. Avoid the device direct exposing sunshine.

Do not put this device close to over damp place. Do not spill any fluid on this device.

Do not connect this device to PC or electronic product, unless our customer engineer or your broadband provider instructs you to do this,

because any wrong connection may cause power or fire risk.

Do not place this device on an unstable surface or support.

Introduction

The DSL-2750U supports multiple line modes. With four 10/100 base-T Ethernet interfaces at the user end, the DSL-2750U provides both DSL uplink

access with a downstream rate of 24 Mbps and an upstream rate of 1 Mbps and Ethernet uplink access. It also supports 3G connection to the Internet

or Intranet for high-end users like net bars and office users. It complies with specifications of IEEE 802.11, 802.11b/g/n, WEP, WPA, and WPA2

security. The WLAN of the device supports 2T2R.

Section 1 –Product Overview

D-Link DSL-2750U User Manual

System Requirements

Network Requirement

Available uplink access (DSL uplink or Ethernet uplink)

Clients to be connected

Devices installed a wireless network adapter or 10 base T/100BaseT Ethernet adapter.

Web-based Configuration

Utility Requirement

Computer with the following:

Windows®, Macintosh, or Linux-based operating system

An installed Ethernet adapter

Browser Requirements:

Microsoft Internet Explorer® v7, Mozilla® Firefox v9.0, Google® Chrome 16.0, or Safari® v4 or higher

version.

Windows®Users: Make sure you have the latest version of Java installed. Visit www.java.com to

download the latest version.

Section 1 –Product Overview

D-Link DSL-2750U User Manual

1 Features

The device supports the following features:

Various line modes

Two uplink access: DSL and Ethernet uplink access

External PPPoE dial-up access

Internal PPPoE/PPPoA dial-up access

1483Bridged/1483Routed with dynamic IP or static IP

Multiple PVCs (the number of PVCs support is eight)

DHCP server/relay

Static route

Network Address Translation(NAT)

DMZ

Virtual Server

Universal plug and play (UPnP)

TR069

Dynamic Domain Name Server(DDNS)

DLNA

Network Time Protocol(NTP)

Firmware upgrading through Web, TFTP, or FTP

Resetting to the factory defaults through Reset button or Web

Diagnostic test

Web interface

Telnet CLI

IP/MAC/URL Filter

Application layer service

QoS

Port binding

Auto upgrade

Cloud security

Digital Living Network Alliance (DLNA)

Wireless network

3G network

Section 2 –Installation

D-Link DSL-2750U User Manual

Installation

This section will guide 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.

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 define 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 reconfigure 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 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 a standard telephone cable. Ask your service provider for more

information about the use of low pass filters with your installation.

Operating Systems

The DSL-2750U 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, Windows XP, Windows Vista,

Windows 7, Windows 8, Windows10.

Section 2 –Installation

D-Link DSL-2750U User Manual

Web Browser

Any common web browser can be used to configure the Router 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 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. If your computer does not have

an Ethernet port, you must install an Ethernet NIC adapter before you can use the Router. If you need to 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 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 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 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.

Section 2 –Installation

D-Link DSL-2750U User Manual

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. 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 configurations (Connection Type settings listed

in parenthesis):

PPPoE/PPPoA (PPPoE LLC, PPPoA LLC or PPPoA VC-Mux)

Bridge Mode (1483 Bridged IP LLC or 1483 Bridged IP VC Mux)

IPoA/MER (Static IPAddress) (Bridged IP LLC, 1483 Bridged IP VC Mux, 1483 Routed IP LLC, 1483 Routed IP VC-Mux or IPoA)

MER (Dynamic IPAddress) (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.

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.

VPI

Most users will not be required to change this setting. The Virtual Path Identifier (VPI) is used in conjunction with the Virtual Channel Identifier (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 configure 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 Identifier (VCI) is 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

configure the VPI and VCI as instructed by your ADSL service provider for the additional connections. This setting can be changed in the WAN

Setup window of the web management interface.

Section 2 –Installation

D-Link DSL-2750U User Manual

Information you will need about your

DSL-2750U Router

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.”

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-2750U

This is the IP address you will enter into the Address field of your web browser to access the Router’s configuration 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-2750U

This is the subnet mask used by the DSL-2750U and will be used throughout your LAN. The default subnet mask is 255.255.255.0.

Section 2 –Installation

D-Link DSL-2750U User Manual

Information you will need about your LAN or computer

Ethernet NIC

If your computer has an Ethernet NIC, you can connect the DSL-2750U to the Ethernet port using an Ethernet cable.

DHCP Client status

Your DSL-2750U ADSL Router 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-2750U 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.)

It is recommended that you backup or 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-2750U ADSL Router.

Section 2 –Installation

D-Link DSL-2750U User Manual

Hardware Description and Installation

LED Indicators

Note:

The figures in this document are for reference only.

Figure 1 Front panel

The following table describes the LEDs of the device.

LED

Color

Status

Description

Power

Green

The initialization of the system is complete.

Red

The device is initiating.

Blinking

The firmware is upgrading.

LAN

Green

Off

The Ethernet interface is not properly connected.

Blinking

The Ethernet interface is properly connected and data is being transmitted.

The Ethernet interface is properly connected, but no data is being transmitted.

2.4GHz

Green

Blinking

The WLAN function is enabled and data is being transmitted on the WLAN.

The WLAN function is enabled, but no data is being transmitted on the WLAN.

Off

The WLAN function is disabled.

WPS

Green

Blinking

WPS is successfully triggered.

Solid on for 5

seconds and

then turns off

Connection is successfully established between the router and the client through WPS.

USB

Green

The 3G or USB flash disk has been connected.

Blinking

Data is being transmitted.

Off

USB connection is not established.

Section 2 –Installation

D-Link DSL-2750U User Manual

LED

Color

Status

Description

DSL

Green

Off

No signal is being detected.

Blinking

The device is handshaking with the physical layer of the office end.

A connection is set up with the physical layer of the office end.

Internet

Green

Off

The device is under the Bridge mode or powered off.

A connection is set up and no traffic is detected.

Blinking

Data is being transmitted over Internet.

Red

The device is attempted to become IP connected, but failed.

Figure 2 Rear panel

The following table describes the interfaces of the device.

Interface/Button

Description

DSL

RJ-11 interface for connecting the host to the telephone jack on the wall or the MODEM interface of the

splitter through a telephone line.

WAN/LAN

This Ethernet RJ-45 interface has two functions.

Worked as a WAN interface that connects to the WAN for Ethernet uplink

Worked as a LAN interface that connects to the Ethernet interfaces of

computers or Ethernet devices.

LAN3/2/1

For a PC or other Ethernet-abled device to join the LAN of 2750E by being connected to this interface with

RJ-45 cable.

USB

USB port, for connecting the 3G network card or other USB storage devices.

WPS

Press and hold the button for 5 seconds starts WPS negotiation.

WIRELESS ON/OFF

Press and hold the button for 5 seconds starts WLAN.

ON/OFF

Power switch, which is used to power on or power off the router.

12V DC IN (power)

Interface for connecting the power adapter.

Section 2 –Installation

D-Link DSL-2750U User Manual

Reset (On the bottom side)

Press and hold the button for 1 second to restore the factory defaults.

Best Location for Wireless Operation

Many environmental factors may affect the effective wireless function of the DSL Router. If this is the first time that you set up a wireless network

device, read the following information:

The access point can be placed on a shelf or desktop, ideally you should be able to see the LED indicators in the front, as you may need to view them

for troubleshooting.

Designed to go up to 100 meters indoors and up to 300 meters outdoors, wireless LAN lets you access your network from anywhere you want.

However, the numbers of walls, ceilings, or other objects that the wireless signals must pass through limit signal range. Typical ranges vary

depending on types of materials and background RF noise in your home or business.

Connecting the Router

DSL Uplink Connection

The following figure displays the application diagram for the connection of the device, PC, splitter and telephone sets, when no telephone set is

placed before the splitter.

Section 2 –Installation

D-Link DSL-2750U User Manual

Figure 3 DSL uplink connection

Step 1 Connect the DSL port of the router and the Modem port of the splitter through a telephone cable; connect the phone to the phone port of

the splitter through a telephone cable; and connect the Line port of the splitter to the uplink telephone jack on the wall.

The spliter has three ports:

LINE: Connect to a wall phone jack (RJ-11 jack)

MODEM: Connect to the Line interface of the router

PHONE: Connect to a telephone set

Step 2 Connect the LAN port of the router to the network interface card (NIC) of the PC through an Ethernet cable (MDI/MDIX).

Step 3 Plug the power adapter to the wall outlet and then connect the other end of it to the Power (12V DC IN) port of the route.

Section 2 –Installation

D-Link DSL-2750U User Manual

Ethernet Uplink Connection

The following figure displays the Ethernet uplink connection.

Figure 4 Ethernet uplink connection

Step 1 Connect the LAN interface of the wireless router to your PC with RJ45 Ethernet cable.

Step 2 Connect the LAN/WAN interface of the wireless router to the uplink network device with RJ45 Ethernet cable.

Step 3 Connect the power adapter to the 12V DC IN interface of the wireless router.

Section 2 –Installation

D-Link DSL-2750U User Manual

TCP/IP Configuration On A PC

Each network interface on the PC should either be configured with a statically defined IP address and DNS address, or be instructed to automatically

obtain an IP address using the network DHCP server. DSL router provides a DHCP server on its LAN and it is recommended to configure your LAN

to automatically obtain its IP address and DNS server IP address.

The configuration principle is identical but should be carried out differently on each operating system.

The right figure displays the TCP/IP Properties dialog box on Windows 7.

TCP/IP configuration steps for Windows XP are as follows:

Step 1 Choose Start > Control Panel > Network and Internet > Network and

Sharing Center.

Step 2 Choose Change Adapter Settings > Local Area Connection.

Right-click Local Area Connection, and choose Properties.

Step 3 On the General tab, select Internet Protocol Version 4 (TCP/IPv4) and

click Properties. The Internet Protocol (TCP/IP) Properties window

appears.

Step 4 Select the Obtain an IP address automatically button.

Step 5 Select the Obtain DNS server address automatically button.

Click OK to save the settings.

Section 3 –Web Configuration

D-Link DSL-2750U User Manual

Web Configuration

This chapter describes how to use Web-based management of the DSL router, which allows you to configure and control all of DSL router features

and system parameters in a user-friendly GUI.

Logging in the Router

The following description is a detail “How-To” user guide and is prepared for first time users.

Step 1 Open the Internet Explorer (IE) browser, and then go to

http://192.168.1.1.

Step 2 The Login page is shown as the figure appears on the right. Select

admin from the drop-down list of username and enter the password. And

then click Login.

The default password is admin.

Select Remember my login info. on this computer, you only need to enter the

password once for the first time logging.

Section 3 –Web Configuration

D-Link DSL-2750U User Manual

Setup

Wizard

Wizard enables fast and accurate configuration of Internet connection and other important parameters. The following sections describe

these various configuration parameters.

When subscribing to a broadband service, you should be aware of the method, by which you are connected to the Internet. The connection

type of your physical WAN device can be Ethernet, DSL, or both. Technical information about the properties of your Internet connection is

provided by your Internet service provider (ISP). For example, your ISP should inform you whether you are connected to the Internet using

a static or dynamic IP address, or the protocol, such as PPPoA or PPPoE, that you use to communicate over the Internet.

Choose SETUP > Wizard. The page is shown as the figure appears on the right.

Step 1 Click Setup Wizard. The page is shown as the figure appears on the

right. There are 5 steps to configure the device. Click Next to continue.

Section 3 –Web Configuration

D-Link DSL-2750U User Manual

Step 2 Set the time and date, and then click Next.

Step 3 Configure the Internet connection.

There are 2 types of wan access type that are Ethernet and dsl. Choose the

DSL-2750U’s uplink access type.

There are 5 types of connection mode: PPPoE, PPPoA, Dynamic IP, Static IP, and

Bridge. -PPPoE/PPPoA

If the protocol is set to PPPoE or PPPoA, the page shown as the right figure

appears.

1) Choose country and ISP from drop-down list respectively.

2) Select PPPoE in Protocol.

3) Enter the VPI and VCI provided by your ISP.

4) Enter the Username and Password provided by your ISP.

5) Re-enter the password for confirmation.

Click Next to go to the next page.

Section 3 –Web Configuration

D-Link DSL-2750U User Manual

-Static IP

If the protocol is set to Static IP, the page shown as the right figure appears.

You can set the parameters in this page as follow:

1) Set the protocol to Static IP.

2) Choose the Encapsulation Mode provided by your ISP.

3) Enter the VPI and VCI provided by your ISP.

4) Enter the WAN IP Address, Subnet Mask, Default Gateway, and Primary

DNS Server provided by your ISP.

-Dynamic IP/Bridge

If the protocol is set to Dynamic IP/Bridge, the page shown as the right figure

appears.

In this page, select encapsulation mode, enter VPI, and VCI provided by your ISP.

After setting, click Next.

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D-Link DSL-2750U User manual