User Manual

Version 1.00 | 2015/11/13
User Manual
DIR-879
AC1900 Wi-Fi Router

iD-Link DIR-879 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
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.
Apple®, Apple logo®, Safari®, iPhone®, iPad®, iPod touch® and Macintosh® are trademarks of Apple Inc., registered in the U.S. and other countries. 
App StoreSM is a service mark of Apple Inc.
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 © 2015 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.
Power Usage
This device is an Energy Related Product (ErP) with High Network Availability (HiNA), and automatically switches to a power-saving Network 
Standby mode within 1 minute of no packets being transmitted. It can also be turned o through a power switch to save energy when it is not 
needed.
Network Standby: TBD watts
Switched O: TBD watts
Preface
Revision Date Description
1.00 November 13, 2015 Initial release

iiD-Link DIR-879 User Manual
Table of Contents
Preface ................................................................................. i
Product Overview .............................................................. 1
Package Contents .........................................................................1
System Requirements .................................................................2
Introduction ................................................................................... 3
Features ............................................................................................ 4
Hardware Overview .....................................................................5
Connections ...........................................................................5
LED .............................................................................................6
Installation ......................................................................... 7
Before you Begin ...........................................................................7
Wireless Installation Considerations ......................................8
Manual Setup ................................................................................. 9
Getting Started ................................................................10
QRS Mobile App ..........................................................................11
Setup Wizard ................................................................................16
Conguration ...................................................................20
Home ..............................................................................................21
Internet ................................................................................... 21
DIR-879 ...................................................................................22
Connected Clients ..............................................................23
Settings ..........................................................................................24
Wizard .....................................................................................24
Internet ................................................................................... 24
IPv6 .....................................................................................33
Wireless ..................................................................................48
Guest Zone .......................................................................50
Network .................................................................................. 51
Features .......................................................................................... 53
QoS Engine............................................................................53
Firewall Settings ..................................................................54
IPv4/IPv6 Rules ...............................................................56
Port Forwarding ..................................................................57
Virtual Server ...................................................................58
Website Filter ........................................................................59
Static Routes .........................................................................60
IPv6 .....................................................................................61
Dynamic DNS .......................................................................62
IPv6 Host ...........................................................................63
Management ................................................................................ 64
Time & Schedule .................................................................64
Time ....................................................................................64
Schedule ...........................................................................65
System Log ............................................................................66
Admin .....................................................................................67
System ...............................................................................68
Upgrade .................................................................................69
Statistics .................................................................................70
Connect a Wireless Client to your Router ......................71
WPS Button ...................................................................................71
Table of Contents

iiiD-Link DIR-879 User Manual
Table of Contents
Windows® 8 ................................................................................... 72
WPA/WPA2 ............................................................................72
WPS ..........................................................................................74
Windows Vista® ............................................................................ 78
WPA/WPA2 ............................................................................79
Troubleshooting ..............................................................81
Wireless Basics .................................................................85
What is Wireless? ......................................................................... 86
Tips ...................................................................................................88
Wireless Modes ............................................................................89
Networking Basics ...........................................................90
Check your IP address ...............................................................90
Statically Assign an IP address ...............................................91
Wireless Security ............................................................92
What is WPA? ...................................................................92
Technical Specications ..................................................93
Regulatory Statements ...................................................94

1D-Link DIR-879 User Manual
Section 1 - Product Overview
Product Overview
Package Contents
Note: Using a power supply with a dierent voltage rating than the one included with the DIR-879 will cause damage and void the warranty 
for this product.
If any of the above items are missing, please contact your reseller.
DIR-879 AC1900 Wi-Fi Router
Ethernet Cable
Power Adapter
WI-FI Conguration Note
Wall Mount Hardware

2D-Link DIR-879 User Manual
Section 1 - Product Overview
Network Requirements
• An Ethernet-based cable or DSL modem
• IEEE 802.11ac/n/g/b/a wireless clients
• 10/100 Ethernet
Web-based Conguration 
Utility Requirements
Computer with the following:
• Windows®, Macintosh, or Linux-based operating system 
• An installed Ethernet adapter
Browser Requirements:
• Internet Explorer 9 or higher
• Firefox 20 or higher
• Safari 7 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.
QRS Mobile Requirements • iPhone®/iPad®/iPod Touch® (iOS 7.0 or higher)
• Android™ device (2.3.3 or higher)
System Requirements

3D-Link DIR-879 User Manual
Section 1 - Product Overview
Introduction
The D-Link DIR-879 is a wireless IEEE 802.11ac compliant device that delivers up to 3x faster speeds than 802.11n while staying 
backward compatible with 802.11n/g/b/a devices. This means you can connect the DIR-879 to a cable or DSL modem and 
provide high-speed Internet access to multiple computers, game consoles, and media players. You can create a secure wireless 
network to share photos, les, music, videos, printers, and network storage. Powered by 802.11ac technology and equipped 
with four external antennas, this router provides superior wireless coverage for larger homes and oces, or for users running 
bandwidth-intensive applications. The DIR-879 also includes a 4-port 10/100/1000 Gigabit Ethernet switch that connects to 
wired devices for uninterrupted video calling and faster le transfers.
D-Link Intelligent QoS Technology helps to increase network eciency by analyzing wired and wireless network trac and 
prioritizing it in order of importance. This way, important network trac such as VoIP and video streaming, take priority over 
background network trac such as a le downloads and print tasks, ensuring you have optimal network performance.
The DIR-879 supports the latest wireless security features to help prevent unauthorized access, be it from over a wireless 
network or the Internet. Support for WPA™ and WPA2™ standards ensure that you will be able to use the best possible 
encryption regardless of your client devices. In addition, this router is equipped with a dual-active rewall (SPI and NAT) to 
prevent potential attacks over the Internet.

4D-Link DIR-879 User Manual
Section 1 - Product Overview
• Ultimate Fast Wireless Networking - The DIR-879 provides up to 600 Mbps wireless connection in 2.4 GHz 
band, and up to 1300 Mbps* wireless connection in 5 GHz with other 802.11ac and 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. The performance of this 802.11ac wireless router gives you the freedom of wireless networking 
at speeds 3x faster than 802.11n.
• Compatible with 802.11ac/n/g/b/a Wireless Devices - The DIR-879 is still fully compatible with the IEEE 
802.11a, IEEE 802.11b, 802.11g and 802.11n, so it can connect with existing 802.11a, IEEE 802.11b, 802.11g and 
802.11n PCI, USB, and CardBus adapters.
• Advanced Firewall Features - The web-based user interface displays a number of advanced network 
management features including: 
• Content Filtering - Easily applied content ltering based on MAC address, URL, and/or domain 
name.
• Filter Scheduling - These lters can be scheduled to be active on certain days or for a duration of 
hours or minutes.
• Secure Multiple/Concurrent Sessions - The DIR-879 can pass through VPN sessions. It supports 
multiple and concurrent IPSec and PPTP sessions, so users behind the DIR-879 can securely access 
corporate networks.
•  User-friendly Setup Wizard - Through its easy-to-use web-based user interface, the DIR-879 lets you control 
what information is accessible to those on the wireless network, whether from the Internet or from your 
company’s server. Congure your router to your specic settings within minutes.
 *  Maximum wireless signal rate derived from IEEE Standard 802.11a, 802.11g, 802.11n and 802.11ac specications. Actual data throughput will vary. Network conditions and 
environmental factors, including volume of network trac, building materials and construction, and network overhead, lower actual data throughput rate. Environmental 
conditions will adversely aect wireless signal range.
Features

5D-Link DIR-879 User Manual
Section 1 - Product Overview
Hardware Overview
Connections
1Reset Button To reset the device to its factory default settings, use a paper clip press and hold the reset button for 3 seconds.
2WPS Press to start the WPS process and automatically create a secure connection to a WPS client.
3LAN Ports (1-4) Connect 10/100/1000 Ethernet devices such as computers, switches, storage (NAS) devices and game consoles.
4Internet Port Using an Ethernet cable, connect your broadband modem to this port.
5Power Connector Connector for the supplied power adapter. 
6Power Button Press the power button to power the DIR-879 on and o.
7Mode Switch
Select between Router and Extender modes. To change modes, move the switch to the desired position and
after 5 seconds the router will reboot into the desired mode. Router is the default mode.
Note: Extender Mode will be supported by a rmware update in 2016.
3 4 5 6 721

6D-Link DIR-879 User Manual
Section 1 - Product Overview
Hardware Overview
LED
1
1Power LED
A solid white light indicates that the device is powered on and healthy.
A solid orange light indicates that the device is booting or undergoing a factory reset.
A blinking orange light indicates that the device is in recovery mode.
A blinking white light indicates that WPS client search mode is active.

7D-Link DIR-879 User Manual
Section 2 - Installation
Before you Begin
Installation
•  Please congure the router with the computer that was last connected directly to your modem. 
•  You can only use the Ethernet port on your modem. If you were using the USB connection before using the router, 
then you must turn o your modem, disconnect the USB cable and connect an Ethernet cable to the Internet 
port on the router, and then turn the modem back on. In some cases, you may need to call your Internet Service 
Provider (ISP) to change connection types (USB to Ethernet). 
•  If connecting to a DSL modem, 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 conguration settings which might be necessary to establish a connection. 
•  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 DIR-879 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 software such as 
WinPoET, BroadJump, or EnterNet 300 from your computer or you will not be able to connect to the Internet.
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 replacing their existing networking equipment or adding a router to 
their exisitng setup. If you are setting up Internet service for the rst time, you may need to modify these steps.

8D-Link DIR-879 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 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 2.4 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 is not in use.

9D-Link DIR-879 User Manual
Section 2 - Installation
1. Turn o and unplug your cable or DSL broadband modem. This is required.
2. Position your router close to your modem and a computer. Place the router in an open area of your intended 
work area for better wireless coverage.
3. Unplug the Ethernet cable from your modem (or existing router if upgrading) that is connected to your 
computer. Plug it into the LAN port labeled 1 on the back of your router. The router is now connected to your 
computer.
4. Plug one end of the included blue Ethernet cable that came with your router into the yellow port labeled 
INTERNET on the back of the router. Plug the other end of this cable into the Ethernet port on your modem.
5. Reconnect the power adapter to your cable or DSL broadband modem and wait for two minutes.
6. Connect the supplied power adapter into the power port on the back of the router and then plug it into a 
power outlet or surge protector. Press the power button and verify that the power LED is lit. Allow 1 minute for 
the router to boot up.
7. If you are connecting to a broadband service that uses a dynamic connection (not PPPoE), you may be online 
already. Try opening a web browser and connecting to a website. If the Internet LED indicator is lit, indicating a 
connection on the Internet/WAN port, then the router should be able to connect to the Internet.
Manual Setup

10D-Link DIR-879 User Manual
Section 3 - Getting Started
There are several dierent ways you can congure your router to connect to the Internet and connect to your clients:
•  QRS Mobile App - Use your Android device, iPhone, iPad, or iPod touch to congure your router. Refer to page 11.
•  D-Link Setup Wizard - This wizard will launch when you log into the router for the rst time. Refer to page 16.
•  Manual Setup - Log into the router and manually congure your router. Refer to page 20
Getting Started

11D-Link DIR-879 User Manual
Section 3 - Getting Started
QRS Mobile App
QRS Mobile app allows you to install and congure your router from your mobile device.
Note: The screenshots may be dierent depending on your mobile device’s OS version. 
Step 1
Search for the free QRS Mobile App on the iTunes Store or Google Play.
Step 2
Once your app is installed, you may now congure your router. Connect 
to the router wirelessly by going to your wireless utility on your device. 
Scan for the Wi-Fi name (SSID) as listed on the supplied info card. Select 
and then enter your Wi-Fi password.
Step 3
Once you connect to the router, launch the QRS Mobile app from the 
Home screen of your device.
Note: The following steps show the Android interface of the QRS Mobile 
app. If you are using an iPhone, iPad, or iPod touch, the appearance may be 
dierent to that of the screenshots, but the process is the same.

12D-Link DIR-879 User Manual
Section 3 - Getting Started
Step 4
You will see the welcome screen. Tap Start to proceed, then enter your 
device password and tap Log In. Tap Next once the Operation Mode 
screen appears.
Step 5
At this point, please ensure that you the router is connected to a 
modem. Plug one end of the provided Ethernet cable into your DSL or 
cable modem, and plug the other end into the port marked INTERNET 
on the DIR-879. Tap Next to automatically detect your Internet 
connection and proceed to the next step.

13D-Link DIR-879 User Manual
Section 3 - Getting Started
Step 6
You will be asked to congure your 2.4 GHz wireless network. Enter a 
network name (SSID) of your choice, or leave it unchanged to accept the 
default SSID. 
Next, choose a Wi-Fi password of at least 8 characters. Any device trying 
to connect to the router wirelessly will need to enter this password the 
rst time it connects.
Tap Next to congure your 5 GHz wireless network. When satised tap 
Next to proceed.
Step 7
Enter the administrator password of your choice. Unlike the Wi-Fi 
password, this password is only required when you need to congure 
the router. See "Conguration" on page 20 for details of when this 
password is used. Tap Next to proceed.

14D-Link DIR-879 User Manual
Section 3 - Getting Started
Step 8
If you wish to receive push notications whenever a new rmware 
update is available, check the Notify me when new rmware is 
available box and tap Next.
Otherwise, just tap Next to proceed.
Step 10
You will be presented with a summary of your chosen settings. 
Tap Save to complete the setup.

15D-Link DIR-879 User Manual
Section 3 - Getting Started
Congratulations, your device has been successfully congured! You can 
share this information by tapping Share By E-mail, or tap Finish to exit 
the app.

16D-Link DIR-879 User Manual
Section 3 - Getting Started
The wizard is designed to guide you through a step-by-step process to 
congure your new D-Link router and connect to the Internet.
Click Next to continue. 
Setup Wizard
If this is your rst time installing the router, open your web browser and 
enter http://dlinkrouter.local./ in the address bar. Alternatively, enter 
the IP address of the router (default: http://192.168.0.1). Please refer to 
page 20.
Please wait while your router detects your Internet connection type. If 
the router detects your Internet connection, you may need to enter your 
ISP information such as username and password.
If the router does not detect a valid Internet connection, a list of 
connection types to choose from will be displayed.
Select your Internet connection type (this information can be obtained 
from your Internet Service Provider) and click Next to continue.

17D-Link DIR-879 User Manual
Section 3 - Getting Started
If the router detected or you selected PPPoE, enter your PPPoE username 
and password and click Next to continue. 
Note: Make sure to remove your PPPoE software from your computer. The 
software is no longer needed and will not work through a router.
If the router detected or you selected Static, enter the IP and DNS settings 
supplied by your ISP. Click Next to continue. 

18D-Link DIR-879 User Manual
Section 3 - Getting Started
Create a Wi-Fi password (between 8-63 characters). Your wireless clients 
will need to have this passphrase or key entered to be able to connect 
to your wireless network.
Click Next to continue.
In order to secure the router, please enter a new password. You will be 
prompted for this password every time you want to use the router’s web 
conguration utility. Click Next to continue.

19D-Link DIR-879 User Manual
Section 3 - Getting Started
At the end of the wizard, you will be presented with a summary of your 
settings. Click Next to nalize the settings or Back to make changes.
At the end of the wizard, you will be presented with a nal summary of 
your settings. Click Finish to close the wizard.

20D-Link DIR-879 User Manual
Section 4 - Conguration
Conguration
Enter your password. If you previously followed the setup wizard, please 
use the admin password you entered during the wizard. Otherwise, 
leave the password blank. Click Log In to proceed.
Note: If you cannot remember your password and cannot log in, press the 
reset/wps button on the back of the device for longer than 10 seconds to 
restore the router to its default settings.
To access the conguration utility, open a web-browser such as 
Internet Explorer and enter http://dlinkrouter.local./ or you may 
also connect by typing the IP address of the router (by default this is 
http://192.168.0.1) in the address bar.
The router’s home page will open displaying its current connection 
status.
The bar at the top of the page has quick access to Settings and 
Management functions. You may quickly jump back Home at any time.
Note: The system will automatically log out after a period of inactivity.

21D-Link DIR-879 User Manual
Section 4 - Conguration
Home
The Home page displays the current status of the router in the form of an interactive diagram. You can click each icon to display 
information about each part of the network at the bottom of the screen. The menu bar at the top of the page will allow you to 
quickly navigate to other pages.
The Home page displays whether or not the router is currently connected to the 
Internet. If it is disconnected, click Click to repair to bring up the setup wizard  
(see page 16).
To bring up more details about your Internet connection, click on the Internet 
icon. Click IPv4 or IPv6 to see details of the IPv4 connection and IPv6 connection 
respectively.
Click Release to disconnect from the Internet. If you do this and wish to reconnect, 
click Renew.
To recongure the Internet settings, refer to page 24.
Internet

22D-Link DIR-879 User Manual
Section 4 - Conguration
DIR-879
Click on the DIR-879 icon to view details about the router and its wireless settings.
Here you can see the router’s current wireless settings, as well as its MAC address 
and IPv4/IPv6 addresses.
To recongure the network settings, either click Go to settings on the lower left, or 
click Settings (at the top of the page) and then Network on the menu that appears. 
For more information refer to page 51.
To recongure the wireless settings, either click Go to settings, on the lower right, 
or click Settings (at the top of the page) and then Wireless on the menu that 
appears. For more information refer to page 48.

23D-Link DIR-879 User Manual
Section 4 - Conguration
Connected Clients
Click on the Connected Clients icon to view details about the router and its wireless 
settings.
On this page you can see all the clients currently connected to the router, and their 
IP addresses.
To edit each client’s settings, click the pencil icon on the client you want to edit.
Enter a custom name for this client.
Displays the vendor of the device.
Displays the MAC address of the device.
Enter a specic IP address for this client.
Enable to reserve this IP address for this client.
Allow or Block access to the router.
Click Save when you are done.
Name:
Vendor:
MAC Address:
IP Address:
Reserve IP:
Parental 
Control:

24D-Link DIR-879 User Manual
Section 4 - Conguration
Settings
Wizard
Internet
In the Settings menu on the bar on the top of the page, click Wizard to open the setup wizard. This is the same wizard that appears when you start 
the router for the rst time. Refer to page 16 for details.
In the Settings menu on the bar on the top of the page, click Internet to see the Internet conguration options.
Choose your Internet connection type from the drop-down menu. 
You will be presented with the appropriate options for your 
connection type. Click Advanced Settings... to expand the list and 
see all of the options.
My Internet 
Connection Is:
For Dynamic IP (DHCP) refer to page 25.
For Static IP refer to page 26.
For PPPoE refer to page 27.
For PPTP refer to page 28.
For L2TP refer to page 30.
For DS-Lite refer to page 32.v
To congure an IPv6 connection, click the IPv6 link. Refer to page 33.

25D-Link DIR-879 User Manual
Section 4 - Conguration
The host name is optional but may be required by some ISPs. Leave 
it blank if you are not sure.
Enter the primary DNS server IP address assigned by your ISP. This 
address is usually obtained automatically from your ISP.
Enter the secondary DNS server IP address assigned by your ISP. This 
address is usually obtained automatically from your ISP.
Maximum Transmission Unit - you may need to change the MTU for 
optimal performance with your ISP.
The default MAC address is set to the Internet port’s physical interface 
MAC address on the router. You can use the drop-down menu to 
replace the Internet port’s MAC address with the MAC address of a 
connected client.
Click Save when you are done.
Host Name:
Primary DNS 
Server:
Secondary DNS 
Server:
MTU:
MAC Address 
Clone:
Dynamic IP (DCHP)
Select Dynamic IP (DHCP) to obtain IP address information automatically from your Internet Service Provider (ISP). Select this option if your ISP 
does not give you an IP address to use.

26D-Link DIR-879 User Manual
Section 4 - Conguration
Enter the IP address provided by your ISP.
Enter the subnet mask provided by your ISP.
Enter the default gateway address provided by your ISP.
Enter the primary DNS server IP address assigned by your ISP.
Enter the secondary DNS server IP address assigned by your ISP.
Maximum Transmission Unit - you may need to change the MTU for 
optimal performance with your ISP.
The default MAC address is set to the Internet port’s physical interface 
MAC address on the router. You can use drop-down menu to replace 
the Internet port’s MAC address with the MAC address of a connected 
client.
Click Save when you are done.
IP Address:
Subnet Mask:
Default 
Gateway:
Primary DNS 
Server:
Secondary DNS 
Server:
MTU:
MAC Address 
Clone:
Static IP
Select Static IP if your IP information is provided by your Internet Service Provider (ISP).

27D-Link DIR-879 User Manual
Section 4 - Conguration
Enter the username provided by your ISP.
Enter the password provided by your ISP.
Select either Always-on, On-Demand, or Manual.
Enter a maximum idle time during which the Internet connection 
is maintained during inactivity. To disable this feature, enable Auto-
reconnect.
Select Static IP if your ISP assigned you the IP address, subnet mask, 
gateway, and DNS server addresses. In most cases, select Dynamic IP.
Enter the IP address provided by your ISP (Static IP only).
Enter the ISP service name (optional).
Enter the primary DNS server IP address assigned by your ISP.
Enter the secondary DNS server IP address assigned by your ISP.
Maximum Transmission Unit - you may need to change the MTU for 
optimal performance with your ISP.
The default MAC address is set to the Internet port’s physical interface 
MAC address on the router. You can use the drop-down menu to 
replace the Internet port’s MAC address with the MAC address of a 
connected client.
Click Save when you are done.
Username:
Password:
Reconnect 
Mode:
Maximum Idle 
Time:
Address Mode:
IP Address:
Service Name:
Primary DNS 
Server:
Secondary DNS 
Server:
MTU:
MAC Address 
Clone:
Select PPPoE if your Internet connection requires you to enter a username and password. This information is provided by your Internet Service 
Provider (ISP).
PPPoE

28D-Link DIR-879 User Manual
Section 4 - Conguration
Enter the PPTP server IP address provided by your ISP.
Enter the username provided by your ISP.
Enter the password provided by your ISP.
Select either Always-on, On-Demand, or Manual.
Enter a maximum idle time during which the Internet connection 
is maintained during inactivity. To disable this feature, enable Auto-
reconnect.
Select Static IP if your ISP assigned you the IP address, subnet mask, 
gateway, and DNS server addresses. In most cases, select Dynamic IP.
Enter the IP address provided by your ISP (Static IP only).
Enter the subnet mask provided by your ISP (Static IP only).
Enter the gateway IP address provided by your ISP (Static IP only).
Enter the primary DNS server IP address assigned by your ISP.
PPTP Server IP 
Address:
Username:
Password:
Reconnect 
Mode:
Maximum Idle 
Time:
Address Mode:
PPTP IP 
Address:
PPTP Subnet 
Mask:
PPTP Gateway 
IP Address:
Primary DNS 
Server:
Choose PPTP (Point-to-Point-Tunneling Protocol ) if your Internet Service Provider (ISP) uses a PPTP connection. Your ISP will provide you with a 
username and password.
PPTP

29D-Link DIR-879 User Manual
Section 4 - Conguration
Enter the secondary DNS server IP address assigned by your ISP.
Maximum Transmission Unit - you may need to change the MTU for 
optimal performance with your ISP.
Click Save when you are done.
Secondary DNS 
Server:
MTU:

30D-Link DIR-879 User Manual
Section 4 - Conguration
L2TP
Enter the L2TP server IP address provided by your ISP.
Enter the username provided by your ISP.
Enter the password provided by your ISP.
Select either Always-on, On-Demand, or Manual.
Enter a maximum idle time during which the Internet connection 
is maintained during inactivity. To disable this feature, enable Auto-
reconnect.
Select Static IP if your ISP assigned you the IP address, subnet mask, 
gateway, and DNS server addresses. In most cases, select Dynamic IP.
Enter the IP address provided by your ISP (Static IP only).
Enter the subnet mask provided by your ISP (Static IP only).
Enter the gateway IP address provided by your ISP (Static IP only).
Enter the primary DNS server IP address assigned by your ISP.
L2TP Server IP 
Address:
Username:
Password:
Reconnect 
Mode:
Maximum Idle 
Time:
Address Mode:
L2TP IP 
Address:
L2TP Subnet 
Mask:
L2TP Gateway 
IP Address:
Primary DNS 
Server:
Choose L2TP (Layer 2 Tunneling Protocol) if your Internet Service Provider (ISP) uses a L2TP connection. Your ISP will provide you with a username 
and password.

31D-Link DIR-879 User Manual
Section 4 - Conguration
Enter the secondary DNS server IP address assigned by your ISP.
Maximum Transmission Unit - you may need to change the MTU for 
optimal performance with your ISP.
Click Save when you are done.
Secondary DNS 
Server:
MTU:

32D-Link DIR-879 User Manual
Section 4 - Conguration
DS-Lite
Select  DS-Lite DHCPv6 to let the router allocate the AFTR IPv6 
address automatically. Select Manual Conguration to enter the 
AFTR IPv6 address manually.
If you selected Manual Conguration above, enter the AFTR IPv6 
address used here.
Enter the B4 IPv4 address value used here.
Once connected, the WAN IPv6 address will be displayed here.
Once connected, the IPv6 WAN default gateway address will be 
displayed here.
Click Save when you are done.
DS-Lite 
Conguration:
AFTR IPv6 
Address:
B4 IPv6 
Address:
WAN IPv6 
Address:
IPv6 WAN 
Default 
Gateway:
DS-Lite is an IPv6 connection type. After selecting DS-Lite, the following parameters will be available for conguration:

33D-Link DIR-879 User Manual
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IPv6
To congure an IPv6 connection, click the IPv6 link. To return to the IPv4 settings, click IPv4.
Choose your IPv6 connection type from the drop-down menu. You 
will be presented with the appropriate options for your connection 
type. Click Advanced Settings... to expand the list and see all of 
the options.
My Internet 
Connection Is:
For Auto Detection refer to page 34.
For Static IPv6 refer to page 36.
For Auto Conguration (SLAAC/DHCPv6) refer to page 38.
For PPPoE refer to page 40.
For IPv6 in IPv4 Tunnel refer to page 42.
For 6 to 4 refer to page 44.
For 6rd refer to page 45.
For Local Connectivity Only refer to page 47.

34D-Link DIR-879 User Manual
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Auto Detection
Select either Obtain DNS server address automatically or Use the 
following DNS address.
If you selected Use the following DNS address above, enter the 
primary DNS server address. 
If you selected Use the following DNS address above, enter the 
secondary DNS server address.
Enable or disable prex delegation services.
If you disabled DHCP-PD, enter the LAN (local) IPv6 address for the 
router.
Displays the router’s LAN link-local address.
Enable or disable the Automatic IPv6 Address Assignment feature.
Enable or disable DHCP-PD for other IPv6 routers connected to the 
LAN interface.
Note: This feature requires a smaller subnet prex than /64 (i.e. allowing 
for a larger address allocation), such as /63. Contact your ISP for more 
information.
DNS Type:
Primary DNS 
Server:
Secondary DNS 
Server:
Enable DHCP-
PD:
LAN IPv6 
Address:
LAN IPv6 Link-
Local Address:
Enable 
Automatic 
IPv6 Address 
Assignment:
Enable 
Automatic 
DHCP-PD in 
LAN:
This is a connection method where the ISP assigns your IPv6 address when your router requests one from the ISP’s server. Some ISPs require you 
to make some settings on your side before your router can connect to the IPv6 Internet.

35D-Link DIR-879 User Manual
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Select Stateful (DHCPv6), SLAAC + RDNSS or SLAAC + Stateless 
DHCPv6.
Enter the IPv6 address lifetime (in minutes).
Click Save when you are done.
Auto 
Conguration 
Type:
Router 
Advertisement 
Lifetime:

36D-Link DIR-879 User Manual
Section 4 - Conguration
Static IPv6
Enable or disable a link-local address.
If you disabled Use Link-Local Address, enter the address supplied 
by your ISP. 
If you disabled Use Link-Local Address, enter the subnet prex 
length supplied by your ISP.
Enter the default gateway for your IPv6 connection.
Enter the primary DNS server address. 
Enter the secondary DNS server address.
Enter the LAN (local) IPv6 address for the router.
Displays the router’s LAN link-local address.
Check to enable the Automatic IPv6 Address Assignment feature.
Use Link-Local 
Address:
IPv6 Address:
Subnet Prex 
Length:
Default 
Gateway:
Primary DNS 
Server:
Secondary DNS 
Server:
LAN IPv6 
Address:
LAN IPv6 Link-
Local Address:
Enable 
Automatic 
IPv6 Address 
Assignment:
Select Static IP if your IPv6 information is provided by your Internet Service Provider (ISP).

37D-Link DIR-879 User Manual
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Select Stateful (DHCPv6), SLAAC + RDNSS or SLAAC + Stateless 
DHCPv6.
Enter the IPv6 address lifetime (in minutes).
Click Save when you are done.
Auto 
Conguration 
Type:
Router 
Advertisement 
Lifetime:

38D-Link DIR-879 User Manual
Section 4 - Conguration
Auto Conguration (SLAAC/DHCPv6)
Select either Obtain DNS server address automatically or Use the 
following DNS address.
If you selected Use the following DNS address above, enter the 
primary DNS server address. 
If you selected Use the following DNS address above, enter the 
secondary DNS server address.
Enable or disable prex delegation services.
If you disabled DHCP-PD, enter the LAN (local) IPv6 address for the 
router.
Displays the router’s LAN link-local address.
Enable or disable the Automatic IPv6 Address Assignment feature.
Enable or disable DHCP-PD for other IPv6 routers connected to the 
LAN interface.
Note: This feature requires a smaller subnet prex than /64 (i.e. allowing 
for a larger address allocation), such as /63. Contact your ISP for more 
information.
DNS Type:
Primary DNS 
Server:
Secondary DNS 
Server:
Enable DHCP-
PD:
LAN IPv6 
Address:
LAN IPv6 Link-
Local Address:
Enable 
Automatic 
IPv6 Address 
Assignment:
Enable 
Automatic 
DHCP-PD in 
LAN:
This is a connection method where the ISP assigns your IPv6 address when your router requests one from the ISP’s server. Some ISPs require you
to make some settings on your side before your router can connect to the IPv6 Internet.

39D-Link DIR-879 User Manual
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Select Stateful (DHCPv6), SLAAC + RDNSS or SLAAC + Stateless 
DHCPv6
Enter the IPv6 address lifetime (in minutes).
Click Save when you are done.
Auto 
Conguration 
Type:
Router 
Advertisement 
Lifetime:

40D-Link DIR-879 User Manual
Section 4 - Conguration
PPPoE
Choose Share with IPv4 to re-use your IPv4 PPPoE username and 
password, or Create a new session.
If you selected Create a new session above, enter the PPPoE 
username provided by your ISP here.
If you selected Create a new session above, enter the PPPoE 
password provided by your ISP here.
Select Static IP if your ISP assigned you the IP address, subnet mask, 
gateway, and DNS server addresses. In most cases, select Dynamic IP.
Enter the IP address provided by your ISP (Static IP only).
Select either Obtain DNS server address automatically or Use the 
following DNS address.
If you selected Use the following DNS address above, enter the 
primary DNS server address. 
If you selected Use the following DNS address above, enter the 
secondary DNS server address.
Enable or disable DHCP-PD for other IPv6 routers connected to the 
LAN interface.
Note: This feature requires a smaller subnet prex than /64 (i.e. allowing 
for a larger address allocation), such as /63. Contact your ISP for more 
information.
PPPoE Session:
Username:
Password:
Address Mode:
IP Address:
DNS Type:
Primary DNS 
Server:
Secondary DNS 
Server:
Enable DHCP-
PD:
Select PPPoE if your Internet connection requires you to enter a username and password. This information is provided by your Internet Service 
Provider (ISP).

41D-Link DIR-879 User Manual
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Enter the LAN (local) IPv6 address for the router.
Displays the router’s LAN link-local address.
Enable or disable the Automatic IPv6 Address Assignment feature.
Enable or disable DHCP-PD for other IPv6 routers connected to the 
LAN interface.
Note: This feature requires a smaller subnet prex than /64 (i.e. allowing 
for a larger address allocation), such as /63. Contact your ISP for more 
information.
Select Stateful (DHCPv6), SLAAC + RDNSS or SLAAC + Stateless 
DHCPv6
Enter the IPv6 address lifetime (in minutes).
Click Save when you are done.
LAN IPv6 
Address:
LAN IPv6 Link-
Local Address:
Enable 
Automatic 
IPv6 Address 
Assignment:
Enable 
Automatic 
DHCP-PD in 
LAN:
Auto 
Conguration 
Type:
Router 
Advertisement 
Lifetime:

42D-Link DIR-879 User Manual
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IPv6 in IPv4 Tunnel
Enter the IPv4 remote address you will use.
Enter the IPv6 remote address you will use.
Enter the IPv4 local address you will use.
Enter the IPv6 local address you will use.
Enter the subnet prex length supplied by your ISP.
Select either Obtain DNS server address automatically or Use the 
following DNS address.
If you selected Use the following DNS address above, enter the 
primary DNS server address. 
If you selected Use the following DNS address above, enter the 
secondary DNS server address.
Enable or disable DHCP-PD for other IPv6 routers connected to the 
LAN interface.
Note: This feature requires a smaller subnet prex than /64 (i.e. allowing 
for a larger address allocation), such as /63. Contact your ISP for more 
information.
Remote IPv4 
Address:
Remote IPv6 
Address:
Local IPv4 
Address:
Local IPv6 
Address:
Subnet Prex 
Length:
DNS Type:
Primary DNS 
Server:
Secondary DNS 
Server:
Enable DHCP-
PD:
The user can congure the IPv6 connection to run in IPv4 Tunnel mode. IPv6 over IPv4 tunneling encapsulates IPv6 packets in IPv4 packets so 
that IPv6 packets can be sent over an IPv4 infrastructure.

43D-Link DIR-879 User Manual
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If you disabled DHCP-PD, enter the LAN (local) IPv6 address for the 
router.
Displays the router’s LAN link-local address.
Enable or disable the Automatic IPv6 Address Assignment feature.
Enable or disable DHCP-PD for other IPv6 routers connected to the 
LAN interface.
Note: This feature requires a smaller subnet prex than /64 (i.e. allowing 
for a larger address allocation), such as /63. Contact your ISP for more 
information.
Select Stateful (DHCPv6), SLAAC + RDNSS or SLAAC + Stateless 
DHCPv6
Enter the IPv6 address lifetime (in minutes).
Click Save when you are done.
LAN IPv6 
Address:
LAN IPv6 Link-
Local Address:
Enable 
Automatic 
IPv6 Address 
Assignment:
Enable 
Automatic 
DHCP-PD in 
LAN:
Auto 
Conguration 
Type:
Router 
Advertisement 
Lifetime:

44D-Link DIR-879 User Manual
Section 4 - Conguration
6 to 4
Displays the 6 to 4 address. 
Enter the 6 to 4 relay supplied by your ISP. 
Enter the primary DNS server address. 
Enter the secondary DNS server address.
Enter the LAN (local) IPv6 address for the router.
Displays the router’s LAN link-local address.
Check to enable the Automatic IPv6 Address Assignment feature.
Select Stateful (DHCPv6), SLAAC + RDNSS or SLAAC + Stateless 
DHCPv6
Enter the IPv6 address lifetime (in minutes).
Click Save when you are done.
6 to 4 Address:
6 to 4 Relay:
Primary DNS 
Server:
Secondary DNS 
Server:
LAN IPv6 
Address:
LAN IPv6 Link-
Local Address:
Enable 
Automatic 
IPv6 Address 
Assignment:
Auto 
Conguration 
Type:
Router 
Advertisement 
Lifetime:
In this section the user can congure the IPv6 6 to 4 connection settings. 6to4 is an IPv6 address assignment and automatic tunneling technol-
ogy that is used to provide unicast IPv6 connectivity between IPv6 sites and hosts across the IPv4 Internet.

45D-Link DIR-879 User Manual
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6rd
Currently unsupported.
Enter the primary DNS server address. 
Enter the secondary DNS server address. 
Enable if you want to minimize the number of routes to the 
destination by using a hub and spoke method of networking.
Choose the 6rd DHCPv4 Option to automatically discover and 
populate the data values, or Manual Conguration to enter the 
settings yourself.
Enter the 6rd IPv6 prex and mask length supplied by your ISP 
(manual conguration only). 
Enter the 6rd border relay IPv4 address settings supplied by your ISP 
(manual conguration only).
Enter the LAN (local) IPv6 address for the router.
Displays the router’s LAN link-local address.
Assign IPv6 
Prex:
Primary DNS 
Server:
Secondary DNS 
Server:
Enable Hub and 
Spoke Mode:
6rd 
Conguration:
6rd IPv6 Prex:
6rd Border 
Relay IPv4 
Address:
LAN IPv6 
Address:
LAN IPv6 Link-
Local Address:
In this section the user can congure the IPv6 6rd connection settings.

46D-Link DIR-879 User Manual
Section 4 - Conguration
Check to enable the Automatic IPv6 Address Assignment feature.
Select Stateful (DHCPv6), SLAAC + RDNSS or SLAAC + Stateless 
DHCPv6.
Enter the IPv6 address lifetime (in minutes).
Click Save when you are done.
Enable 
Automatic 
IPv6 Address 
Assignment:
Auto 
Conguration 
Type:
Router 
Advertisement 
Lifetime:

47D-Link DIR-879 User Manual
Section 4 - Conguration
Local Connectivity Only
Click here to enable Unique Local IPv6 Unicast Addresses settings.
Checking this box will automatically congure the ULA prex for 
the default setting.
If you wish to choose your own ULA prex, enter it here.
This section will display the current settings for your IPv6 ULA.
Click Save when you are done.
Enable ULA:
Use Default 
ULA Prex:
ULA Prex:
Current IPv6 
ULA Settings:
Local Connectivity Only allows you to set up an IPv6 connection that will not connect to the Internet.

48D-Link DIR-879 User Manual
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Wireless
Enable or disable the Smart Connect Feature. When enabled some 
conguration options are unavailable.
Create a name for your wireless network using up to 32 characters. 
Create a password to use for wireless security. Wireless clients will 
need to enter this password to successfully connect to the network.
Choose None, WEP, or WPA/WPA2-(Personal) (recommended).
Select the desired wireless networking standards to use. The available 
options will depend on the wireless frequency band, as well as the 
currently selected security mode.
Select the desired wireless transmission power.
Select Auto 20/40 if you are using both 802.11n and non-802.11n 
wireless devices, or select 20 MHz if you are not using any 802.11n 
wireless clients. The 5 GHz band will has an additional 80 MHz option 
for AC clients.
The default setting is Visible. Select Invisible if you do not want to 
broadcast the SSID of your wireless network.
Smart Connect:
Wi-Fi Name 
(SSID):
Password:
Security Mode:
802.11 Mode:
Transmission 
Power:
Channel Width:
Visibility Status:
In the Settings menu on the bar on the top of the page, click Wireless to see the 
wireless conguration options. To congure the router’s guest zone, click the Guest 
Zone link. Refer to page 50 for details. Click Advanced Settings... to expand the 
list and see all of the options. The following options apply to both the 2.4 GHz and 
the 5 GHz wireless frequency bands:

49D-Link DIR-879 User Manual
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Use the drop-down menu to select the time schedule that the rule 
will be enabled on. The schedule may be set to Always Enable, or 
you can create your own schedules in the Schedules section. Refer 
to page 65 for more information.
Click Save when you are done.
Schedule:

50D-Link DIR-879 User Manual
Section 4 - Conguration
Guest Zone
Enable or disable the guest zone for each wireless frequency band.
Enter a wireless network name (SSID) that is dierent from your main 
wireless network.
Create a password to use for wireless security. Wireless clients will 
need to enter this password to successfully connect to the guest zone.
Enabling this option will confine connectivity to the Internet, 
disallowing guests from accessing other local network devices.
Click Save when you are done.
Status:
Wi-Fi Name 
(SSID):
Password:
Internet Access 
Only:
In the Settings menu on the bar on the top of the page, click Wireless, then click 
the Guest Zone link. Click Advanced Settings... to expand the list and see all of 
the options. The following options apply to both the 2.4 GHz and the 5 GHz wireless 
frequency bands: 
The guest zone feature will allow you to create temporary zones that can be used by 
guests to access the Internet. These zones will be separate from your main wireless 
network. You may congure dierent zones for the 2.4 GHz and 5 GHz wireless bands.

51D-Link DIR-879 User Manual
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Network
Enter the IP address of the router. The default IP address is 
192.168.0.1.
If you change the IP address, once you click Save, you will need 
to enter the new IP address in your browser to get back into the 
conguration utility.
Enter the subnet mask of the router. The default subnet mask is 
255.255.255.0.
The default address to access the router’s configuration is  
http://dlinkrouter.local./ Here, you can replace dlinkrouter with 
a name of your choice.
Enter the domain name (optional).
Disable to transfer the DNS server information from your ISP to your 
computers. If enabled, your computers will use the router for a DNS 
server.
Enable or disable the DHCP server.
Enter the starting and ending IP addresses for the DHCP server’s IP 
assignment.
Note: If you statically (manually) assign IP addresses to your computers 
or devices, make sure the IP addresses are outside of this range or you 
may have an IP conict. 
LAN IP Address:
Subnet Mask:
Management 
Link:
Local Domain 
Name:
Enable DNS 
Relay:
Status:
DHCP IP 
Address Range:
This section will allow you to change the local network settings of the router and to 
congure the DHCP settings. In the Settings menu on the bar on the top of the page, 
click Network. Click Advanced Settings... to expand the list and see all of the options. 

52D-Link DIR-879 User Manual
Section 4 - Conguration
DHCP Lease 
Time:
Always 
Broadcast:
UPnP:
WAN Port 
Speed:
IPv4 Multicast 
Stream:
IPv6 Multicast 
Stream:
Enter the length of time for the IP address lease in minutes.
Enable this feature to broadcast your networks DHCP server to LAN/
WLAN clients.
Enable or disable Universal Plug and Play (UPnP). UPnP provides 
compatibility with networking equipment, software and peripherals.
You may set the port speed of the Internet port to 10 Mbps, 100 
Mbps, 1000 Mbps, or Auto (recommended). 
Enable to allow IPv4 multicast trac to pass through the router from 
the Internet.
Enable to allow IPv6 multicast trac to pass through the router from 
the Internet.
Click Save when you are done.

53D-Link DIR-879 User Manual
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Features
QoS Engine
This section will allow you to prioritize particular clients over others, so that those 
clients receive higher bandwidth. For example, if one client is streaming a movie 
and another is downloading a non-urgent le, you might wish to assign the former 
device a higher priority than the latter so that the movie streaming is not disrupted 
by the trac of the other devices on the network.
In the Features menu on the bar on the top of the page, click QoS Engine.
Under All Devices, you will see device cards representing each connected client. If 
some are o-screen, you can use the < and > buttons to scroll through the cards.
A maximum of one device can be assigned Highest priority.
A maximum of two devices can be assigned High priority.
A maximum of eight devices can be assigned Medium priority.
If no devices are explicitly assigned a priority, they will all be treated with equal 
priority. If some devices are not assigned a priority and others are, the unassigned 
devices will be treated with the lowest priority.
To assign a priority level to a device, drag the device card from the All Devices list 
over an empty slot and release the mouse button. The card will remain in the slot. 
If you want to remove a priority assignment from a device and return it to the All 
Devices list, click the cross icon in the top right of the device card.
Click Save when you are done.

54D-Link DIR-879 User Manual
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Firewall Settings
Enable or disable Demilitarized Zone (DMZ). This completely exposes 
the client to threats over the Internet, and is not recommended in 
ordinary situations.
If you enabled DMZ, enter the IP address of the client you wish to 
expose, or use the drop-down menu to quickly select it.
Enabling Stateful Packet Inspection (SPI) helps to prevent cyber 
attacks by validating that the trac passing through the session 
conforms to the protocol.
Enable this feature to protect your network from certain kinds of 
“spoong” attacks.
Enable or disable IPv6 simple security.
Enable or disable IPv6 ingress ltering.
Allows multiple machines on the LAN to connect to their corporate 
network using the PPTP protocol.
Enable DMZ:
DMZ IP 
Address:
Enable SPI IPv4:
Enable 
Anti-Spoof 
Checking:
IPv6 Simple 
Security:
IPv6 Ingress 
Filtering:
PPTP:
The router’s rewall protects your network from malicious attacks over the Internet. 
In the Features menu on the bar on the top of the page, click Firewall Settings. Click 
Advanced Settings... to expand the list and see all of the options. 

55D-Link DIR-879 User Manual
Section 4 - Conguration
Allows multiple VPN clients to connect to their corporate network 
using IPSec. Some VPN clients support traversal of IPSec through 
NAT. This Application Level Gateway (ALG) may interfere with the 
operation of such VPN clients. If you are having trouble connecting 
with your corporate network, try turning this ALG o. Please check 
with the system administrator of your corporate network whether 
your VPN client supports NAT traversal.
Allows applications that uses Real Time Streaming Protocol (RTSP)
to receive streaming media from the Internet.
Allows devices and applications using VoIP (Voice over IP) to 
communicate across NAT. Some VoIP applications and devices have 
the ability to discover NAT devices and work around them. This ALG 
may interfere with the operation of such devices. If you are having 
trouble making VoIP calls, try turning this ALG o.
Click Save when you are done.
IPSec (VPN):
RTSP:
SIP:

56D-Link DIR-879 User Manual
Section 4 - Conguration
IPv4/IPv6 Rules
Enter a name for the rule.
Enter the source IP address range that the rule will apply to, and using 
the drop-down menu, specify whether it is a WAN or LAN IP address.
Enter the destination IP address range that the rule will apply to, and 
using the drop-down menu, specify whether it is a WAN or LAN IP 
address.
Select the protocol of the trac to allow or deny (Any, TCP, or UDP) 
and then enter the range of ports that the rule will apply to.
Use the drop-down menu to select the time schedule that the rule 
will be enabled on. The schedule may be set to Always Enable, or 
you can create your own schedules in the Schedules section. Refer 
to page 65 for more information.
Click Apply when you are done.
The IPv4/IPv6 Rules section is an advanced option that lets you congure what kind 
of trac is allowed to pass through the network. To congure the IPv4 rules, from 
the Firewall Settings page click IPv4 Rules. To congure IPv6 rules, from the Firewall 
Settings page click IPv6 Rules. To return to the main Firewall Settings page, click 
Security Check.
To begin, use the drop-down menu to select whether you want to ALLOW or DENY 
the rules you create. You can also choose to turn ltering OFF.
If you wish to remove a rule, click on its trash can icon in the Delete column. If you 
wish to edit a rule, click on its pencil icon in the Edit column. If you wish to create a 
new rule, click the Add Rules button. Click Save when you are done. If you edit or 
create a rule, the following options will appear:
Name:
Source IP 
Address Range:
Destination IP 
Address Range:
Port Range:
Schedule:

57D-Link DIR-879 User Manual
Section 4 - Conguration
Port Forwarding
Enter a name for the rule.
Enter the IP address of the computer on your local network that you 
want to allow the incoming service to. Alternatively, select the device 
from the drop-down menu.
Enter the TCP ports that you want to open. You can enter a single 
port or a range of ports. Separate ports with a comma (for example: 
24,1009,3000-4000).
Enter the UDP ports that you want to open. You can enter a single 
port or a range of ports. Separate ports with a comma (for example: 
24,1009,3000-4000).
Use the drop-down menu to select the time schedule that the rule 
will be enabled on. The schedule may be set to Always Enable, or 
you can create your own schedules in the Schedules section. Refer 
to page 65 for more information.
Click Apply when you are done.
Name:
Local IP:
TCP Port:
UDP Port:
Schedule:
Port forwarding allows you to specify a port or range of ports to open for specic 
devices on the network. This might be necessary for certain applications to connect 
through the router. In the Features menu on the bar on the top of the page, click 
Port Forwarding.
If you wish to remove a rule, click on its trash can icon in the Delete column. If you 
wish to edit a rule, click on its pencil icon in the Edit column. If you wish to create a 
new rule, click the Add Rules button. Click Save when you are done. If you edit or 
create a rule, the following options will appear:

58D-Link DIR-879 User Manual
Section 4 - Conguration
Virtual Server
Enter a name for the rule.
Enter the IP address of the computer on your local network that you 
want to allow the incoming service to. Alternatively, select the device 
from the drop-down menu.
Select the protocol of the trac to allow or deny (TCP, UDP, Both, 
or Other).
If you entered Other above, enter the protocol number.
Enter the public port you want to open.
Enter the private port you want to open.
Use the drop-down menu to select the time schedule that the rule 
will be enabled on. The schedule may be set to Always Enable, or 
you can create your own schedules in the Schedules section. Refer 
to page 65 for more information.
Click Apply when you are done.
The virtual server allows you to specify a single public port on your router for 
redirection to an internal LAN IP Address and Private LAN port. To congure the 
virtual server, from the Port Forwarding page click Virtual Server. To return to the 
main Port Forwarding page, click Port Forwarding.
If you wish to remove a rule, click on its trashcan icon in the Delete column. If you 
wish to edit a rule, click on its pencil icon in the Edit column. If you wish to create a 
new rule, click the Add Rules button. Click Save when you are done. If you edit or 
create a rule, the following options will appear:
Name:
Local IP:
Protocol:
Protocol 
Number:
External Port:
Internal Port:
Schedule:

59D-Link DIR-879 User Manual
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Website Filter
The website lter settings allow you to block access to certain web sites. You can 
either create a list of sites to block, or create a list of sites to allow (with all other sites 
being blocked).
In the Features menu on the bar on the top of the page, click Website Filter.
If you want to create a list of sites to block, select DENY computers access to ONLY 
these sites from the drop-down menu. All other sites will be accessible. If you want 
to specify a list of sites to allow, select ALLOW computers access to ONLY these 
sites from the drop-down menu. All other sites will be blocked.
You may specify a maximum of fteen web sites. To add a new site to the list, click 
Create New Rule. Next, under Website URL/Domain enter the URL or domain. If you 
wish to remove a rule, click on its trashcan icon in the Delete column. If you wish to 
edit a rule, simply replace the URL or domain.
Click Save when you are done.

60D-Link DIR-879 User Manual
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Static Routes
Enter a name for the rule.
Enter the IP address of packets that will take this route.
Enter the netmask of the route.
Enter your next hop gateway to be taken if this route is used.
The route metric is a value from 1 to 16 that indicates the cost of 
using this route. A value 1 is the lowest cost and 15 is the highest cost. 
Select the interface that the IP packet must use to transit out of the 
router when this route is used. 
Click Apply when you are done.
The Static Routes section allows you to dene custom routes to control how data 
trac is moved around your network.
In the Features menu on the bar on the top of the page, click Static Routes.
To congure IPv6 rules, click IPv6 and refer to page 61. To return to the main IPv4 
static routes page, click IPv4.
If you wish to remove a rule, click on its trash can icon in the Delete column. If you 
wish to edit a rule, click on its pencil icon in the Edit column. If you wish to create a 
new rule, click the Add Rules button. Click Save when you are done. If you edit or 
create a rule, the following options will appear:
Name:
Destination 
Network:
Mask:
Gateway:
Metric:
Interface:

61D-Link DIR-879 User Manual
Section 4 - Conguration
Enter a name for the rule.
This is the IP address of the router used to reach the specied 
destination.
Enter the IPv6 address prex length of the packets that will take this 
route. 
Enter the metric value for this rule here.
Select the interface that the IP packet must use to transit out of the 
router when this route is used. 
Click Apply when you are done.
Name:
DestNetwork:
PrexLen:
Metric:
Interface:
IPv6
To congure IPv6 rules, on the Static Routes page click IPv6. To return to the main 
IPv4 static routes page, click IPv4.
If you wish to remove a rule, click on its trash can icon in the Delete column. If you 
wish to edit a rule, click on its pencil icon in the Edit column. If you wish to create a 
new rule, click the Add Rules button. Click Save when you are done. If you edit or 
create a rule, the following options will appear:

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Section 4 - Conguration
Dynamic DNS
Most Internet Service Providers (ISPs) assign dynamic (changing) IP addresses. Using 
a dynamic DNS service provider, people can enter your domain name in their web 
browser to connect to your server no matter what your IP address is.
In the Features menu on the bar on the top of the page, click Dynamic DNS.
Enabling dynamic DNS will reveal further conguration options.
Displays the current dynamic DNS connection status.
Enter the address of your dynamic DNS server, or select one from 
the drop-down menu.
Enter the host name that you registered with your dynamic DNS 
service provider.
Enter your dynamic DNS username.
Enter your dynamic DNS password.
Enter a timeout time (in hours).
Click Save when you are done.
Enable 
Dynamic DNS:
Status:
Server Address:
Host Name:
User Name:
Password:
Time Out:
At the bottom of the page are the IPv6 host settings. To congure an IPv6 dynamic 
DNS host, refer to page 63.

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Section 4 - Conguration
Enter the host name that you registered with your dynamic DNS 
service provider.
Enter the IPv6 address of the dynamic DNS server. Alternatively, select 
the server device in the drop-down menu. 
Click Apply when you are done.
Host Name:
IPv6 Address:
The IPv6 host settings are found at the bottom of the Dynamic DNS page.
If you wish to remove a rule, click on its trash can icon in the Delete column. If you 
wish to edit a rule, click on its pencil icon in the Edit column. If you wish to create a 
new rule, click the Add Rules button. Click Save when you are done. If you edit or 
create a rule, the following options will appear:
IPv6 Host

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Section 4 - Conguration
Management
Time & Schedule
Time
The Time page allows you to congure, update, and maintain the correct time on 
the internal system clock. From here you can set the time zone, the Network Time 
Protocol (NTP) server, and enable or disable daylight saving time.
In the Management menu on the bar on the top of the page, click Time & Schedule.
Select your time zone from the drop-down menu.
Displays the current date and time of the router.
Enable or disable daylight saving time.
Enable or disable to allow an NTP server on the Internet to 
synchronize the time and date with your router. If you enable this 
option, select an NTP server from the drop-down menu. To congure 
the router’stime and date manually, disable this option and use the 
drop-down menus that appear to input the time and date.
Click Save when you are done.
Time Zone:
Time:
Daylight 
Saving:
Update Time 
Using an NTP 
Server:
To congure and manage your schedules, click Schedule and refer to page 65.

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Section 4 - Conguration
Schedule
Some conguration rules can be set according to a pre-congured schedule. To 
create, edit, or delete schedules, from the Time page click Schedule. To return to 
the Time page, click Time. 
If you wish to remove a rule, click on its trash can icon in the Delete column. If you 
wish to edit a rule, click on its pencil icon in the Edit column. If you wish to create a 
new rule, click the Add Rules button. Click Save when you are done. If you edit or 
create a rule, the following screen will appear:
First, enter the name of your schedule in the Name eld.
Each box represents one hour, with the time at the top of each column. To add a time 
period to the schedule, simply click on the start hour and drag to the end hour. You 
can add multiple days to the schedule, but only one period per day.
To remove a time period from the schedule, click on the cross icon.
Click Apply when you are done.

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Section 4 - Conguration
System Log
Check this box to send the router logs to a SysLog Server. If this is 
disabled, there will be no other options on this page.
Enter the IP address for the Syslog server. If the Syslog server is 
connected to the router, select it from the drop-down menu to 
automatically populate the eld. 
If you want the logs to be automatically sent to an email address, 
enable this option.
Enter the settings for your email account. These are obtained from 
your email service provider.
If email notication is enabled, this option will set the router to send 
the log by email when the log is fully.
This option can be enabled to send an email according to a 
precongured schedule. See below.
If you enable On Schedule is enabled, use the drop-down menu 
to select the time schedule that the rule will be enabled on. The 
schedule may be set to Always Enable, or you can create your own 
schedules in the Schedules section. Refer to page 65 for more 
information.
Click Save when you are done.
Enable Logging 
to Syslog 
Server:
Syslog Server IP 
Address:
Enable Email 
Notication:
Send When Log 
Full:
Send On 
Schedule:
Schedule:
The router keeps a running log of events. This log can be sent to a Syslog server, and 
sent to your email address. In the Management menu on the bar on the top of the 
page, click System Log. 

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Section 4 - Conguration
Admin
This page will allow you to change the administrator (Admin) password and enable 
remote management.
In the Management menu on the bar on the top of the page, click Admin.
Enter a new password for the administrator account. You will need to 
enter this password whenever you congure the router using a web 
browser.
Enables a challenge-response test to require users to type letters or 
numbers from a distorted image displayed on the screen to prevent 
online hackers and unauthorized users from gaining access to your 
router’s network settings.
Check to enable HTTPS to connect to the router securely. Instead of 
using http://dlinkrouter.local./, you must use https://dlinkrouter.
local./ in order to connect to the router.
Remote management allows the DIR-879 to be congured from the 
Internet by a web browser. A password is still required to access the 
web management interface. 
The port number used to access the DIR-879 is used in the URL. Example: 
http://x.x.x.x:8080 where x.x.x.x is the Internet IP address of the DIR-879 
and 8080 is the port used for the web management interface. 
Note: If you enabled HTTPS Server and wish to access the router remotely 
and securely, you must enter https:// at the beginning of the address.
Click Save when you are done.
Password:
Enable 
Graphical 
Authentication 
(CAPTCHA):
Enable HTTPS 
Server:
Enable Remote 
Management:
Remote Admin 
Port:
To load, save, or reset settings, or reboot the router, click System and refer to page 
68.

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Section 4 - Conguration
System
This option will save the current router conguration settings to a le 
on your computer.
This option will load a previously saved router conguration le. This 
will overwrite the router’s current conguration.
This option will restore all conguration settings back to the settings that 
were in eect at the time the router was shipped from the factory. Any 
settings that have not been saved will be lost, including any rules that 
you have created. If you want to save the current router conguration 
settings, use the Save Settings To Local Hard Drive button above. 
Click to reboot the router immediately.
You may select Never, Daily, or Weekly.
Choose the day of the week to automatically reboot the router.
Choose the time of day to automatically reboot the router.
Click Save when you are done.
Save Settings 
To Local Hard 
Drive:
Load Settings 
From Local 
Hard Drive:
Restore To 
Factory Default 
Settings:
Reboot The 
Device:
Auto Reboot:
Day of the 
week:
Time:
This page allows you to save the router’s current conguration, load a previously saved 
conguration, reset the router to its factory default settings, or reboot the router.
From the Admin page, click System. To return to the Admin page, click Admin.

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Section 4 - Conguration
Upgrade
This page will allow you to upgrade the router’s rmware or language pack, either 
automatically or manually. To manually upgrade the rmware or language pack, you 
must rst download the relevant le from http://support.dlink.com.
In the Management menu on the bar on the top of the page, click Upgrade.
The current rmware’s version and date will be displayed.
Click this button to prompt the router to automatically check for a new 
rmware version. If a newer version is found, it will prompt you to install 
it.
If you wish to upgrade manually, rst download the rmware le you 
wish to upgrade to. Next, click the Upgrade Firmware button and 
browse to the le to install the new rmware. You can also browse to a 
language pack le to install a new language pack.
Firmware 
Information:
Check for New 
Firmware:
Upgrade 
Firmware:

70D-Link DIR-879 User Manual
Section 4 - Conguration
Statistics
On the Statistics page you can view the amount of packets that pass through the 
router on the WAN, LAN, and wireless segments.
In the Management menu on the bar on the top of the page, click Statistics.
You can view the Internet, LAN, Wi-Fi 2.4 GHz, or Wi-Fi 5 GHz by clicking on the 
respective tabs at the top. The graph will update in real time. To clear the information 
on the graph, click Clear.
The trac counter will reset if the device is rebooted.

71D-Link DIR-879 User Manual
Section 5 - Connecting to a Wireless Network
Connect a Wireless Client to your Router
WPS Button
Step 2 -  Within 2 minutes, press the WPS button on your wireless device (or launch the software utility and start the WPS 
process).
The easiest and most secure way to connect your wireless devices to the router is with WPS (Wi-Fi Protected Setup). Most 
wireless devices such as wireless adapters, media players, Blu-ray DVD players, wireless printers and cameras will have a WPS 
button (or a software utility with WPS) that you can press to connect to the DIR-879 router. Please refer to your user manual for 
the wireless device you want to connect to make sure you understand how to enable WPS. Once you know, follow the steps 
below:
Step 1 -  Press the WPS button on the DIR-879 for about 1 second. The Internet LED on the front will start to blink.
Step 3 -  Allow up to 1 minute for your connection to be congured. Once the Internet light stops blinking, you will be 
connected and your wireless connection will be secure with WPA2.
WPS Button

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Section 5 - Connecting to a Wireless Network
Windows® 8
WPA/WPA2
It is recommended that you enable wireless security (WPA/WPA2) on your wireless router or access point before conguring 
your wireless adapter. If you are joining an existing network, you will need to know the security key (Wi-Fi password) being 
used.
To join an existing network, locate the wireless network icon in the 
taskbar next to the time display. 
Wireless Icon
Clicking on this icon will display a list of wireless networks that are 
within connecting proximity of your computer. Select the desired 
network by clicking on the network name.

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Section 5 - Connecting to a Wireless Network
You will then be prompted to enter the network security key (Wi-Fi 
password) for the wireless network. Enter the password into the box and 
click Next. 
If you wish to use Wi-Fi Protected Setup (WPS) to connect to the router, 
you can also press the WPS button on your router during this step to 
enable the WPS function. 
When you have established a successful connection to a wireless 
network, the word Connected will appear next to the name of the 
network to which you are connected to. 

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Section 5 - Connecting to a Wireless Network
WPS
The WPS feature of the DIR-879 can be congured using Windows® 7. Carry out the following steps to use Windows® 7 to 
congure the WPS feature:
1. Click the Start button and select Computer from the Start menu.
2. Click Network on the left side.

75D-Link DIR-879 User Manual
Section 5 - Connecting to a Wireless Network
3. Double-click the DIR-879.
4. Input the WPS PIN number (on the router label) in the Setup > 
Wireless Setup menu in the Router’s Web UI) and click Next.
DIR-879

76D-Link DIR-879 User Manual
Section 5 - Connecting to a Wireless Network
5. Type a name to identify the network.
6. To congure advanced settings, click the   icon.
Click Next to continue.

77D-Link DIR-879 User Manual
Section 5 - Connecting to a Wireless Network
7. The following window appears while the Router is being congured.
  Wait for the conguration to complete.
8. The following window informs you that WPS on the router has been 
set up successfully.
  Make a note of the security key as you may need to provide this 
security key if adding an older wireless device to the network in the 
future.
9. Click Close to complete WPS setup.

78D-Link DIR-879 User Manual
Section 5 - Connecting to a Wireless Network
Windows Vista®
Windows Vista® users may use the built-in wireless utility. If you are using another company’s wireless utility, please refer to the 
user manual of your wireless adapter for help connecting to a wireless network. Most wireless utilities will have a “site survey” 
option similar to the Windows Vista® utility as seen below.
Right-click on the wireless computer icon in your system tray (lower-
right corner next to the time). Select Connect to a network.
If you receive the Wireless Networks Detected bubble, click on the 
center of the bubble to access the utility.
     or
The utility will display any available wireless networks in your area. Click 
on a network (displayed using the SSID) and click the Connect button.
If you get a good signal but cannot access the Internet, check you  
TCP/IP settings for your wireless adapter. Refer to the Networking 
Basics section in this manual for more information.

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Section 5 - Connecting to a Wireless Network
WPA/WPA2
It is recommended that you enable wireless security (WPA/WPA2) on your wireless router or access point before conguring 
your wireless adapter. If you are joining an existing network, you will need to know the security key or passphrase being used.
2. Highlight the Wi-Fi name (SSID) you would like to connect to and 
click Connect.
1. Open the Windows Vista® Wireless Utility by right-clicking on the 
wireless computer icon in your system tray (lower right corner of 
screen). Select Connect to a network. 

80D-Link DIR-879 User Manual
Section 5 - Connecting to a Wireless Network
3.  Enter the same security key or passphrase (Wi-Fi password) that is on 
your router and click Connect.
It may take 20-30 seconds to connect to the wireless network. If the 
connection fails, please verify that the security settings are correct. The 
key or passphrase must be exactly the same as the one on the wireless 
router.

81D-Link DIR-879 User Manual
Section 6 - Troubleshooting
Troubleshooting
This chapter provides solutions to problems that can occur during the installation and operation of the DIR-879. Read the 
following descriptions if you are having problems. The examples below are illustrated in Windows® XP. If you have a dierent 
operating system, the screenshots on your computer will look similar to these examples.
1. Why can’t I access the web-based conguration utility?
When entering the IP address of the D-Link router (192.168.0.1 for example), you are not connecting to a website, nor do you 
have to be connected to the Internet. The device has the utility built-in to a ROM chip in the device itself. Your computer must 
be on the same IP subnet to connect to the web-based utility. 
•  Make sure you have an updated Java-enabled web browser. We recommend the following: 
- Microsoft Internet Explorer® 7 or higher
- Mozilla Firefox 3.5 or higher
- Google™ Chrome 8 or higher
- Apple Safari 4 or higher
•  Verify physical connectivity by checking for solid link lights on the device. If you do not get a solid link light, try using a 
dierent cable, or connect to a dierent port on the device if possible. If the computer is turned o, the link light may not be 
on.
•  Disable any Internet security software running on the computer. Software rewalls such as ZoneAlarm, BLACKICE, Sygate, 
Norton Personal Firewall, and Windows® XP rewall may block access to the conguration pages. Check the help les 
included with your rewall software for more information on disabling or conguring it.

82D-Link DIR-879 User Manual
Section 6 - Troubleshooting
•  Congure your Internet settings:
•  Go to Start > Settings > Control Panel. Double-click the Internet Options Icon. From the Security tab, click 
the button to restore the settings to their defaults.
•  Click the Connection tab and set the dial-up option to Never Dial a Connection. Click the LAN Settings button. 
Make sure nothing is checked. Click OK. 
•  Go to the Advanced tab and click the button to restore these settings to their defaults. Click OK three times.
•  Close your web browser (if open) and open it.
•  Access the web management. Open your web browser and enter the IP address of your D-Link router in the address bar. This 
should open the login page for your web management. 
•  If you still cannot access the conguration, unplug the power to the router for 10 seconds and plug back in. Wait about 30 
seconds and try accessing the conguration. If you have multiple computers, try connecting using a dierent computer.
2. What can I do if I forgot my password?
If you forgot your password, you must reset your router. This process will change all your settings back to the factory defaults.
To reset the router, locate the reset button (hole) on the rear panel of the unit. With the router powered on, use a paperclip 
to hold the button down for 10 seconds. Release the button and the router will go through its reboot process. Wait about 30 
seconds to access the router. The default IP address is 192.168.0.1. When logging in, leave the password box empty.

83D-Link DIR-879 User Manual
Section 6 - Troubleshooting
3. Why can’t I connect to certain sites or send and receive emails when connecting through my router? 
If you are having a problem sending or receiving email, or connecting to secure sites such as eBay, banking sites, and Hotmail, 
we suggest lowering the MTU in increments of ten (Ex. 1492, 1482, 1472, etc). 
To nd the proper MTU Size, you’ll have to do a special ping of the destination you’re trying to go to. A destination could be 
another computer, or a URL. 
•  Click on Start and then click Run. 
•  Windows® 95, 98, and Me users type in command (Windows® NT, 2000, XP, Vista®, and 7 users type in cmd) and 
press Enter (or click OK). 
•  Once the window opens, you’ll need to do a special ping. Use the following syntax: 
  ping [url] [-f] [-l] [MTU value] 
Example: ping yahoo.com -f -l 1472 

84D-Link DIR-879 User Manual
Section 6 - Troubleshooting
You should start at 1472 and work your way down by 10 each time. Once you get a reply, go up by 2 until you get a 
fragmented packet. Take that value and add 28 to the value to account for the various TCP/IP headers. For example, lets say 
that 1452 was the proper value, the actual MTU size would be 1480, which is the optimum for the network we’re working with 
(1452+28=1480). 
Once you nd your MTU, you can now congure your router with the proper MTU size. 
To change the MTU rate on your router follow the steps below: 
•  Open your browser, enter the IP address of your router (192.168.0.1) and click OK. 
•  Enter your username (admin) and password (blank by default). Click OK to enter the web conguration page for 
the device. 
•  Click on Setup and then click Manual Congure.
•  To change the MTU, enter the number in the MTU eld and click Save Settings to save your settings. 
•  Test your email. If changing the MTU does not resolve the problem, continue changing the MTU in increments 
of ten. 

85D-Link DIR-879 User Manual
Appendix A - Wireless Basics
D-Link wireless products are based on industry standards to provide easy-to-use and compatible high-speed wireless 
connectivity within your home, business, or public access wireless networks. Strictly adhering to the IEEE standard, the D-Link 
wireless family of products will allow you to securely access the data you want, when, and where you want it. You will be able to 
enjoy the freedom that wireless networking delivers.
A wireless local area network (WLAN) is a cellular computer network that transmits and receives data with radio signals 
instead of wires. Wireless LANs are used increasingly in both home and oce environments, and public areas such as airports, 
coee shops and universities. Innovative ways to utilize WLAN technology are helping people work, and communicate more 
eciently. Increased mobility and the absence of cabling and other xed infrastructure have proven to be benecial for many 
users. 
Wireless users can use the same applications they use on a wired network. Wireless adapter cards used on laptop and desktop 
systems support the same protocols as Ethernet adapter cards. 
Under many circumstances, it may be desirable for mobile network devices to link to a conventional Ethernet LAN in order to 
use servers, printers or an Internet connection supplied through the wired LAN. A wireless router is a device used to provide 
this link.
Wireless Basics

86D-Link DIR-879 User Manual
Appendix A - Wireless Basics
What is Wireless?
Wireless or Wi-Fi technology is another way of connecting your computer to the network without using wires. Wi-Fi uses radio 
frequency to connect wirelessly so you have the freedom to connect computers anywhere in your home or oce network.
Why D-Link Wireless? 
D-Link is the worldwide leader and award winning designer, developer, and manufacturer of networking products. 
D-Link delivers the performance you need at a price you can aord. D-Link has all the products you need to build your 
network.
How does wireless work? 
Wireless works similarly to how cordless phones work, through radio signals that transmit data from one point A to point B. But 
wireless technology has restrictions as to how you can access the network. You must be within the wireless network range area 
to be able to connect your computer. There are two dierent types of wireless networksl: Wireless Local Area Network (WLAN), 
and Wireless Personal Area Network (WPAN).
Wireless Local Area Network (WLAN)
In a wireless local area network, a device called an Access Point (AP) connects computers to the network. The access point 
has a small antenna attached to it, which allows it to transmit data back and forth over radio signals. With an indoor access 
point the signal can travel up to 300 feet. With an outdoor access point the signal can reach out up to 30 miles to serve places 
like manufacturing plants, industrial locations, university and high school campuses, airports, golf courses, and many other 
outdoor venues.

87D-Link DIR-879 User Manual
Appendix A - Wireless Basics
Wireless Personal Area Network (WPAN)
Bluetooth is the industry standard wireless technology used for WPAN. Bluetooth devices in WPAN operate in a range up to 30 
feet away.
Compared to WLAN the speed and wireless operation range are both less than WLAN, but in return it doesn’t use nearly as 
much power. This makes it ideal for personal devices, such as mobile phones, PDAs, headphones, laptops, speakers, and other 
devices that operate on batteries.
Who uses wireless? 
Wireless technology as become so popular in recent years that almost everyone is using it, whether it’s for home, oce, 
business, D-Link has a wireless solution for it.
Home Uses/Benets
  • Gives everyone at home broadband access
  • Surf the web, check email, instant message, etc.
  • Gets rid of the cables around the house
  • Simple and easy to use
Small Oce and Home Oce Uses/Benets
  • Stay on top of everything at home as you would at oce
  • Remotely access your oce network from home
  • Share Internet connection and printer with multiple computers
  • No need to dedicate oce space

88D-Link DIR-879 User Manual
Appendix A - Wireless Basics
Where is wireless used? 
Wireless technology is expanding everywhere, not just at home or oce. People like the freedom of mobility and it’s becoming 
so popular that more and more public facilities now provide wireless access to attract people. The wireless connection in public 
places is usually called “hotspots”.
Using a D-Link CardBus adapter with your laptop, you can access the hotspot to connect to the Internet from remote locations 
like: airports, hotels, coee shops, libraries, restaurants, and convention centers.
Wireless network is easy to setup, but if you’re installing it for the rst time it could be quite a task not knowing where to start. 
That’s why we’ve put together a few setup steps and tips to help you through the process of setting up a wireless network.
Tips
Here are a few things to keep in mind, when you install a wireless network.
Centralize your router or access point
Make sure you place the router/access point in a centralized location within your network for the best performance. Try to 
place the router/access point as high as possible in the room, so the signal gets dispersed throughout your home. If you have a 
two-story home, you may need a repeater to boost the signal to extend the range.
Eliminate Interference 
Place home appliances such as cordless telephones, microwaves, and televisions as far away as possible from the router/access 
point. This would signicantly reduce any interference that the appliances might cause since they operate on same frequency.
Security 

89D-Link DIR-879 User Manual
Appendix A - Wireless Basics
Don’t let your next-door neighbors or intruders connect to your wireless network. Secure your wireless network by turning on 
the WPA or WEP security feature on the router. Refer to the product manual for detail information on how to set it up.
There are basically two modes of networking: 
•  Infrastructure – All wireless clients will connect to an access point or wireless router.
•  Ad-hoc – Directly connecting to another computer for peer-to-peer communication using wireless network 
adapters on each computer, such as two or more DIR-879 wireless network CardBus adapters.
An Infrastructure network contains an access point or wireless router. All the wireless devices, or clients, will connect to the 
wireless router or access point. 
An Ad-hoc network contains only clients, such as laptops with wireless CardBus adapters. All the adapters must be in Ad-hoc 
mode to communicate.
Wireless Modes

90D-Link DIR-879 User Manual
Appendix B - Networking Basics
Networking Basics
Check your IP address
After you install your new D-Link adapter, by default, the TCP/IP settings should be set to obtain an IP address from a DHCP 
server (i.e. wireless router) automatically. To verify your IP address, please follow the steps below.
Click on Start > Run. In the run box type cmd and click OK. (Windows® 7/Vista® users type cmd in the Start Search box.)
At the prompt, type ipcong and press Enter.
This will display the IP address, subnet mask, and the 
default gateway of your adapter.
If the address is 0.0.0.0, check your adapter 
installation, security settings, and the settings on 
your router. Some rewall software programs may 
block a DHCP request on newly installed adapters. 

91D-Link DIR-879 User Manual
Appendix B - Networking Basics
Statically Assign an IP address
If you are not using a DHCP capable gateway/router, or you need to assign a static IP address, please follow the steps below:
Step 1
Windows® 7 -  Click on Start > Control Panel > Network and Internet > Network and Sharing Center.
Windows Vista® -  Click on Start > Control Panel > Network and Internet > Network and Sharing Center > Manage 
Network 
   Connections.
Windows® XP -  Click on Start > Control Panel > Network Connections.
Windows® 2000 -  From the desktop, right-click My Network Places > Properties.
Step 2
Right-click on the Local Area Connection which represents your network adapter and select Properties.
Step 3
Highlight Internet Protocol (TCP/IP) and click Properties.
Step 4
Click Use the following IP address and enter an IP address that is on the same subnet 
as your network or the LAN IP address on your router. 
Example: If the router´s LAN IP address is 192.168.0.1, make your IP address 192.168.0.X 
where X is a number between 2 and 99. Make sure that the number you choose is not 
in use on the network. Set the Default Gateway the same as the LAN IP address of your 
router (I.E. 192.168.0.1). 
Set Primary DNS the same as the LAN IP address of your router (192.168.0.1). The 
Secondary DNS is not needed or you may enter a DNS server from your ISP.
Step 5
Click OK twice to save your settings.

92D-Link DIR-879 User Manual
Appendix B - Networking Basics
Wireless Security
This section will show you the dierent levels of security you can use to protect your data from intruders. The DIR-879 oers the following 
types of security:
  • WPA2 (Wi-Fi Protected Access 2)       • WPA2-PSK (Pre-Shared Key)
  • WPA (Wi-Fi Protected Access)        • WPA-PSK (Pre-Shared Key)
What is WPA?
WPA (Wi-Fi Protected Access), is a Wi-Fi standard that was designed to improve the security features of WEP (Wired Equivalent Privacy). 
The 2 major improvements over WEP: 
•  Improved data encryption through the Temporal Key Integrity Protocol (TKIP). TKIP scrambles the keys using a hashing 
algorithm and by adding an integrity-checking feature, ensures that the keys haven’t been tampered with. WPA2 is 
based on 802.11i and uses Advanced Encryption Standard (AES) instead of TKIP.
•  User authentication, which is generally missing in WEP, through the extensible authentication protocol (EAP). WEP 
regulates access to a wireless network based on a computer’s hardware-specic MAC address, which is relatively simple 
to be snied out and stolen. EAP is built on a more secure public-key encryption system to ensure that only authorized 
network users can access the network.
WPA-PSK/WPA2-PSK uses a passphrase or key to authenticate your wireless connection. The key is an alpha-numeric password between 
8 and 63 characters long. The password can include symbols (!?*&_) and spaces. This key must be the exact same key entered on your 
wireless router or access point.
WPA/WPA2 incorporates user authentication through the Extensible Authentication Protocol (EAP). EAP is built on a more secure public 
key encryption system to ensure that only authorized network users can access the network.

93D-Link DIR-879 User Manual
Appendix C - Technical Specications
Technical Specications
Hardware Specications
•  LAN Interface: Four 10/100/1000 Mbps LAN ports
•  WAN Interface: One 10/100/1000 Mbps Internet port
•  Wireless Interface (2.4 GHz): IEEE 802.11b/g/n
•  Wireless Interface (5 GHz): IEEE 802.11 ac/n/a
Operating Voltage
•  Input: 100~240 V AC, 50~60 Hz
•  Output: 12 V DC, 2 A
Temperature
•  Operating: 0 ~ 40 oC (32 ~ 104 oF)
•  Non-Operating: -20 ~ 65 oC (-20 ~ 149 oF)
Humidity
•  Operating: 10% - 90% non-condensing
•  Non-Operating: 5% - 95% non-condensing
Wireless Frequency Range
•  IEEE 802.11a: 5150 MHz~5250 MHz, 5725 MHz~5850 MHz
•  IEEE 802.11b: 2400 MHz~2483.5 MHz
•  IEEE 802.11g: 2400 MHz~2483.5 MHz
•  IEEE 802.11n: 2400 MHz~2483.5 MHz, 5150 MHz~5250 MHz, 5725 
MHz~5850 MHz
•  IEEE 802.11ac: 5150 MHz~5250 MHz, 5725 MHz~5850 MHz
Wireless Bandwidth Rate
•  IEEE 802.11a: 54, 48, 36, 24, 18, 12, 9, and 6 Mbps
•  IEEE 802.11b: 11, 5.5, 2, and 1 Mbps
•  IEEE 802.11g: 54, 48, 36, 24, 18, 12, 9, and 6 Mbps
•  IEEE 802.11n: 6.5 to 600 Mbps
•  IEEE 802.11ac: 6.5 to 1300 Mbps
Antenna Type
•  Four external antennas 
Wireless Security
•  64/128bit WEP, WPA/WPA2-Personal, WPS-PBC
EMI/EMC Certication
•  CE
•  FCC 
•  IC
•  BSMI
•  CCC
RF Certication
•  CE
•  FCC
•  IC
•  NCC
Safety Certication
•  CSA
•  CCC 
•  BSMI
Dimensions & Weight
•  219.67 x 199.45 x 73.55 mm (8.65 x 7.85 x 2.90 inches)
•  750 g ( 26.5 oz)

94D-Link DIR-879 User Manual
Appendix D - Regulatory Information
Federal Communication Commission Interference Statement
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 equipment 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 the equipment o and on, the user is encouraged to try to 
correct the interference by one 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 dierent from that to which the receiver is connected.
 - Consult the dealer or an experienced radio/TV technician for help.
Non-modications Statement:
Any changes or modications not expressly approved by the party responsible for compliance could void the user’s authority to operate this 
equipment.
Caution:
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.
For product available in the USA/Canada market, only channel 1~11 can be operated. Selection of other channels is not possible. This device and 
its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter except in accordance with FCC multi-
transmitter product procedures. 
Note
The country code selection is for non-USA models only and is not available to all USA models. Per FCC regulations, all WiFi product marketed in 
the USA must be xed to USA operational channels only.
Regulatory Statements
It is restricted to indoor environments only.

95D-Link DIR-879 User Manual
Appendix D - Regulatory Information
IMPORTANT NOTICE:
FCC Radiation Exposure Statement 
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and 
operated with minimum distance 26 cm between the radiator and your body.
Industry Canada Statement:
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: 
(1) this device may not cause interference, and 
(2) this device must accept any interference, including interference that may cause undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux 
deux conditions suivantes: 
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si lebrouillage est susceptible d'en compromettre le 
fonctionnement.
For product available in the USA/Canada market, only channel 1~11 can be operated. Selection of other channels is not possible.
Pour les produits disponibles aux États-Unis / Canada du marché, seul le canal 1 à 11 peuvent être exploités. Sélection d'autres canaux n'est pas 
possible.
This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter except in accordance 
with IC multi-transmitter product procedures. 
Cet appareil et son antenne (s) ne doit pas être co-localisés ou fonctionnement en association avec une autre antenne ou transmetteur.
The device for operation in the band 5150-5250 MHz is only for indoor use to reduce the potential for harmful interference to co-channel mobile 
satellite systems;
Les dispositifs fonctionnant dans la bande 5150-5250 MHz sont réservés uniquement pour une utilisation à l’intérieur an de réduire les risques 
de brouillage préjudiciable aux systèmes de satellites mobiles utilisant les mêmes canaux;
The maximum antenna gain permitted for devices in the band 5725-5850 MHz shall be such that the equipment still complies with the e.i.r.p. 
limits specied for point-to-point and non-point-to-point operation as appropriate; 
Pour les dispositifs munis d'antennes amovibles, le gain maximal d'antenne permis (pour les dispositifs utilisant la bande de 5725 à 5850 MHz) 
doit être conforme à la limite de la p.i.r.e. spéciée pour l'exploitation point à point et l'exploitation non point à point, selon le cas;

96D-Link DIR-879 User Manual
Appendix D - Regulatory Information
Radiation Exposure Statement
This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be 
installed and operated with minimum distance 26 cm between the radiator and your body. 
Déclaration d'exposition aux radiations
Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un environnement non contrôlé. Cet équipement doit 
être installé et utilisé avec un minimum de 26 cm de distance entre la source de rayonnement et votre corps.
This radio transmitter DIR-879A1 has been approved by Industry Canada to operate with the antenna types listed below with the maximum 
permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater 
than the maximum gain indicated for that type, are strictly prohibited for use with this device. 
Le présent émetteur radio DIR-879A1 a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés ci-dessous et 
ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont 
le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur.
Table for Filed Antenna
Ant. Brand Model Name Antenna Type Connector 2.4 G  Gain (dBi) 5 G Gain (dBi)
1Nienyi NYS1751 PCB Antenna MHF-I Plug 3 dBi 3 dBi
2Nienyi NYS1752 PCB Antenna MHF-I Plug 3 dBi 3 dBi
3Nienyi NYS1753 PCB Antenna MHF-I Plug 3 dBi 3 dBi
4Nienyi NYS1754 PCB Antenna MHF-I Plug 3 dBi 3 dBi