D-Link DSL-124 User manual

Wireless N300 ADSL2+ Modem Router
User Manual
DSL-124
Version 1.00 | 04/06/2016

iD-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
D-Link reserves the right to revise this publication and to make changes in the content hereof without obligation to notify any person or organization
of such revisions or changes.
Manual Revisions
Revision Date Description
1.00 October 13, 2016 • Release for revision I1
Trademarks
D-Link and the D-Link logo are trademarks or registered trademarks of D-Link Corporation or its subsidiaries in the United States or other countries.
All other company or product names mentioned herein are trademarks or registered trademarks of their respective companies.
Chrome™ browser, Google Play™ and Android™ are trademarks of Google Inc.
Internet Explorer®, Windows® and the Windows logo are trademarks of the Microsoft group of companies.
Copyright © 2016 by D-Link Corporation, Inc.
All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed written permission from D-Link Corporation, Inc.
Preface

iiD-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Table of Contents
Product Overview..............................................................1
Package Contents.........................................................................1
System Requirements................................................................. 2
Introduction ................................................................................... 3
Features............................................................................................4
Hardware Overview.....................................................................5
Front LED Panel .....................................................................5
Back............................................................................................6
Installation.........................................................................7
Before you Begin...........................................................................7
Wireless Installation Considerations......................................8
Manual Setup.................................................................................9
Getting Started................................................................12
Web-based Conguration Utility..........................................13
Wizard.............................................................................................14
Conguration...................................................................22
Setup...............................................................................................23
Local Network......................................................................24
LAN Interface...................................................................25
LAN Interface (Continued)..........................................26
IPv6 Local Network........................................................27
DHCP Server ....................................................................30
Internet Setup......................................................................32
Channel Cong...............................................................33
Creating a New Connection.......................................35
Modify an Existing Connection.................................46
ADSL Settings.......................................................................49
Wireless Setup......................................................................50
Wireless Basics .....................................................................51
Wireless Security.................................................................52
Time and Date......................................................................56
Advanced ......................................................................................57
Advanced Wireless .............................................................58
Wireless Advanced ........................................................59
Wireless Access Control...............................................61
Wi-Fi Protected Setup...................................................62
Wireless Multiple BSSID Setup..................................63
Access Control List..............................................................64
Access Control List.........................................................65
Access Control List IPv6...............................................66
Port Triggering.....................................................................68
Port Forwarding ..................................................................70
DMZ.........................................................................................72
Parent Control......................................................................73
URL Block..........................................................................74
Online Time Limit...........................................................75
Schedules .........................................................................76
Filtering Options .................................................................77
IP/Port Filter.....................................................................78
IPv6/Port Filter ................................................................80
MAC Filter .........................................................................82
DOS Settings ........................................................................83
Table of Contents

iiiD-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Table of Contents
DNS..........................................................................................84
DNS .....................................................................................85
IPv6 DNS............................................................................86
Dynamic DNS .......................................................................87
Network Tools ......................................................................88
Port Mapping ..................................................................89
IGMP Proxy Conguration..........................................90
MLD Conguration........................................................91
IP QoS.................................................................................92
UPnP...................................................................................93
SNMP..................................................................................94
Telnet..................................................................................95
TR-069................................................................................96
Software Forbidden......................................................97
ARP Binding .....................................................................98
Client Limit.......................................................................99
Routing................................................................................ 100
Static Routing............................................................... 101
IPv6 Static Route ......................................................... 103
RIP..................................................................................... 104
NAT........................................................................................ 105
NAT ALG.......................................................................... 106
NAT Exclude IP ............................................................. 107
NAT Forwarding........................................................... 108
FTP ALG Cong............................................................ 109
NAT IP Mapping........................................................... 110
Maintenance ............................................................................. 111
System ................................................................................. 112
Firmware Update ............................................................. 113
Password............................................................................. 114
Diagnostics ........................................................................ 115
Ping.................................................................................. 116
Ping6................................................................................ 117
Traceroute...................................................................... 118
ADSL................................................................................ 119
Diag Test......................................................................... 120
System Log......................................................................... 121
Status ........................................................................................... 122
Device Info ......................................................................... 123
Wireless Clients................................................................. 125
DHCP Clients ..................................................................... 126
ADSL Driver........................................................................ 127
Statistics.............................................................................. 128
Route Info........................................................................... 129
Help .............................................................................................. 130
Connect a Wireless Client to your Router ....................131
WPS Button................................................................................ 131
Windows® 10............................................................................. 132
Windows® 8................................................................................ 134
WPA/WPA2 ......................................................................... 134
Windows® 7................................................................................ 136
WPA/WPA2 ......................................................................... 136
Windows Vista®......................................................................... 139
WPA/WPA2 ......................................................................... 140
Troubleshooting............................................................142
Wireless Basics ...............................................................146

ivD-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Table of Contents
What is Wireless?...................................................................... 147
Wireless Modes......................................................................... 150
Networking Basics.........................................................151
Check your IP address............................................................ 151
Statically Assign an IP address............................................ 152
Wireless Security ......................................................... 153
What is WPA? ................................................................ 153
Technical Specications................................................154
Regulatory Statements .................................................155

1D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 1 - Product Overview
Product Overview
Package Contents
Note: Using a power supply with a dierent voltage rating than the one included with the device will cause damage and void the warranty for this product.
If any of the above items are missing, please contact your reseller.
Wireless N300 ADSL2+ Modem Router
Ethernet Cable
Power Adapter
ADSL Telephone Cable
Quick Installation Guide

2D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 1 - Product Overview
System Requirements
Network Requirements
• Wired 10/100 Ethernet Devices/Computers orWireless Ethernet
802.11 n/g/b Devices/Computers
• A DSL enabled Internet Connection with a subscription to an
Internet Service Provider
Web-based Conguration
Utility Requirements
Computer with the following:
• Windows®, Macintosh, or Linux-based operating system
• An installed Ethernet adapter
Browser Requirements:
• Internet Explorer 8 or higher
• Firefox 20 or higher
• Safari 4 or higher
• Chrome 25 or higher
Windows®Users: Make sure you have the latest version of Java
installed. Visit www.java.com to download the latest version.

3D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 1 - Product Overview
Introduction
The DSL-124 Wireless N300 ADSL2+ Modem Router is a versatile, high-performance router for homes and small offices. With integrated
ADSL2/2+ supporting up to 24 Mbps download speeds, firewall 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 office needs to establish a secure and high-speed link to the outside world.
High-speed ADSL2/2+ Internet Connection - The latest ADSL2/2+ standards provide Internet transmission of up to 24 Mbps downstream, 1
Mbps upstream.
High-performance Wireless - Embedded 802.11n technology for high-speed wireless connection, complete compatibility with 802.11b/g
wireless devices.
Ultimate Wireless Connection with Maximum Security - This router maximizes wireless performance by connecting to computer interfaces
and staying connected from virtually anywhere at home and in the office. The router can be used with 802.11b/g/n wireless networks to enable
significantly improved reception. It supports WPA/WPA2 and WEP for flexible user access security and data encryption methods.
Firewall Protection & QoS - Security features prevent unauthorized access to your home and office network, be it from the wireless devices or
from the Internet. The router provides firewall 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 provided with packet filtering based on port and source/destination MAC/IP addresses. For Quality of Service (QoS), the router
supports multiple priority queues to enable a group of home or office users to experience the benefit of smooth network connection of inbound
and outbound data without concern for traffic congestion. This QoS feature allows users to enjoy high-speed ADSL transmission for applications
such as VoIP and streaming multimedia over the Internet.
* Maximum wireless signal rate derived from IEEE Standard 802.11b, 802.11g, and 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,
lower actual data throughput rate. Environmental conditions will adversely affect wireless signal range.

4D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 1 - Product Overview
• Faster Wireless Networking - The DSL-124 provides up to 300 Mbps* wireless connection with other 802.11n wireless clients. This
capability allows users to 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-124 is still fully compatible with the IEEE 802.11b and g standards, so you can
use keep your existing 802.11b and g devices.
• Precise ATM Traffic Shaping - Traffic shaping is a method of controlling the flow rate of ATM data cells. This function helps to establish
Quality of Service for ATM data transfer.
• High Performance - Very high rates of data transfer are possible with the router-providing up to 24 Mbps downstream for ADSL2+.
• Full Network Management - The DSL-124 incorporates SNMP (Simple Network Management Protocol) support for web-based
management and text-based network management via a Telnet connection.
• Easy Installation - The DSL-124 can be configured and managed easily using a web-based UI. Any common web browser software can
be used to manage the router.
• IPv6 Connection Support - Compatible with IPv6 networks, the DSL-124 provides several connection types: Link-local, Static IPv6,
DHCPv6, Stateless Autoconfiguration, PPPoE, IPv6 in IPv4 Tunnel, and 6to4.
* Maximum wireless signal rate derived from IEEE Standard 802.11b, 802.11g, and 802.11n specications. Actual data throughput will vary. Network conditions and environmental
factors, including volume of network trac, building materials and construction, and network overhead, lower actual data throughput rate. Environmental conditions will
adversely aect wireless signal range.
Features

5D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 1 - Product Overview
Hardware Overview
Front LED Panel
1Power LED A solid green light indicates the unit is powered on. A red light indicates device malfunction.
2DSL LED A solid green light indicates a proper connection to the ADSL enabled telephone line.
3Internet A solid green light indicates a proper connection to a broadband service. A red light indicates that IP
assignment has failed.
4LAN LEDs 1-4 A solid green light indicates a connection to a device. The light will blink during data transmission.
5WLAN LED A solid green light indicates that the Wi-Fi is ready.
6WPS LED The light will blink during the WPS process.
4
31 2 55 6

6D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 1 - Product Overview
Hardware Overview
Back
1Reset Button To reset the DSL-124 to the default settings, insert a paperclip into the hole on the bottom of the device
located near the label and wait several seconds.
2Power Connector Connector for the supplied power adapter.
3Power Button Press to power the DSL-124 on or o.
4WPS Button Press to start the WPS process and automatically create a secure connection to a WPS client.
5LAN Ports (1-4) Connects Ethernet devices such as computers, switches, storage (NAS) devices and game consoles.
6DSL Port Connects to an DSL-enabled telephone line.
532 4 61

7D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 2 - Installation
Before you Begin
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, attic, or garage.
Note: This installation section is written for users who are setting up their home Internet service with the DSL-124
Wireless N300 ADSL2+ Modem Router for the first time. If you are replacing an existing DSL modem and/or router, you may need to modify these
steps.
• Make sure to have your DSL service information provided by your Internet Service Provider handy. This information is likely to include
your DSL account's Username and Password. Your ISP may also supply you with additional WAN configuration settings which are necessary to
establish a connection. This information may include the connection type (DHCP IP, Static IP, PPPoE, or PPPoA) and/or ATM PVC details.
• If you are connecting a considerable amount of networking equipment, it may be a good idea to take the time to label each cable or take
a picture of your existing setup before making any changes.
• We suggest setting up your DSL-124 from a single device and verifying that it is connected to the Internet before connecting additional
devices.
• If you have DSL and are connecting via PPPoE, make sure you disable or uninstall any PPPoE connection software such as WinPoET,
BroadJump, or EnterNet 300 from your computer as the DSL-124 will be providing this functionality.

8D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 2 - Installation
Wireless Installation Considerations
The D-Link wireless router 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:
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 1-30 meters (3-90 feet). Position your devices so that the number of walls or ceilings is minimized.
Be aware of the direct line between network devices. A wall that is .5 meters (1.5 feet thick), at a 45-degree angle appears to be almost
1 meter (3 feet) thick. At a 2-degree angle it looks over 14 meters (42 feet) thick! Position devices so that the signal will travel straight through a
wall or ceiling (instead of at an angle) for better reception.
Building materials make a difference. A solid metal door or aluminum studs may have a negative effect 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 (fish tanks), mirrors, file cabinets, brick, and concrete will degrade your wireless signal.
Keep your product away (at least 1-2 meters or 3-6 feet) from electrical devices or appliances that generate RF noise.
If you are using 2.4 GHz 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 2.4 GHz 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.

9D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 2 - Installation
DSL-124
1
Connect the included ADSL Telephone Cable from a telephone outlet to the DSL port on your DSL-124.
2
3
Position your DSL-124 close to a telephone outlet which provides DSL service. Place the router in an open area of your
intended work area for better wireless coverage.
Turn off and unplug your existing DSL broadband modem. This is required.
Manual Setup
Telephone Outlet
Existing Modem
DSL-124

10D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 2 - Installation
Ethernet Cable
DSL-124
Computer
4
5
If you wish to use a wired connection, connect the Ethernet cable from a LAN port of the DSL-124 to the
Ethernet port on your computer.
Plug the power adapter into your DSL-124 and connect to an available power outlet or surge protector.
Caution: - Only use the included power adapter with this product.
DSL-124
Computer
Power adapter

11D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 2 - Installation
6
7If connecting to the DSL-124 wirelessly, access the wireless utility on your computer or mobile device. Scan for available Wi-
Fi networks (SSID). Select and join the Wi-Fi network printed on the label on the bottom of your DSL-124.
Press the power button and verify that the power LED is lit. Allow 1 minute for the router to boot up.
DSL-124
DSL-124
Computer
Power adapter

12D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Getting Started
There are two different ways you can configure your router to connect to the Internet and connect to your clients:
• Web-based Setup Wizard - This wizard will launch when you log into the DSL-124 for the first time.
Refer to Web-based Configuration Utility on page 13.
• Manual Setup - Log into the DSL-124 and manually configure your it, refer to Manual Setup on page 9.
Getting Started

13D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Getting Started
Web-based Conguration Utility
This section will show you how to configure your D-Link DSL-124 using the web-based configuration utility.
If you wish to change the default settings or adjust the configuration of the DSL-124 you
may use the web-based configuration utility.
To access the configuration utility, open a web browser such as Internet Explorer and
enter http://192.168.1.1 in the address field.
Type admin for the user name and then enter your password. The default password is
admin.
On your first login, it is recommended that you select Setup Wizard page.
If you want to configure the router manually without running the wizard, skip to
Configuration on page 22.

14D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Getting Started
Use the Setup Wizard to quickly and easily configure the DSL-124. This wizard is
designed to guide you through a step-by-step process to configure your new D-Link
router and connect to the Internet.
Click the Setup Wizard button to continue.
If you want to configure the DSL-124 manually without running the wizard, skip to
Configuration on page 22.
Wizard
SETUP WIZARD
The Setup Wizard will guide you through the following steps:
Step 1: Change Device Login Password
Step 2: Set Time and Date
Step 3: Setup Internet Connection
Step 4: Configure Wireless Network
Step 5: Completed and Apply
Click Next to begin.

15D-Link DSL-124 Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Getting Started
This step of the wizard allows you to configure your password settings.
Enter your Current Password, Enter a new Password, and Confirm Password to secure
your DSL-124.
Click Next to continue. Otherwise, click Skip to leave the password unchanged.
Step 1: Change Device Login Password