D-Link DIR-842-R7 Wave 2 Wi-Fi Easy Mesh Gigabit Router

Specifications

• Model: DIR-842
• Wireless Standard: AC1200 Wave 2 MU-MIMO
• Wi-Fi Technology: EasyMesh
• Network Ports: Gigabit

PRODUCT USING INSTRUCTIONS

• Product Overview:
  • The DIR-842 is a wireless dual-band gigabit router with a built-in 4-port switch. It offers a quick and easy solution for setting up both wireless and wired networks in home or office environments.
• Product Appearance:
  • Upper Panel:
    • Describe the upper panel details here…
  • Back Panel:
    • Provide information about the back panel features…
  • Delivery Package:
    • Details about what’s included in the delivery package…
• Installation and Connection:
  • Before You Begin:
    • Guidelines to follow before starting the installation process…
    • Connecting to Mobile Device with D-Link Assistant Application:
    • Steps to connect the router to a mobile device using the D-Link Assistant Application…
  • Connecting to PC:
    • Instructions on how to connect the router to a PC…
    • Configuring via Web-based Interface:
    • Details on how to configure the router settings through the web-based interface…
• Operation Guidelines:
  • Terms and Conditions:
    • Important information regarding the installation, safe operation, storage, transportation, and disposal of the router…
  • Wireless Installation Considerations:
    • Factors to consider when setting up the wireless connection…
  • Abbreviations and Acronyms:
    • A list of common abbreviations and acronyms used in the manual…

FAQs

• Q: How do I reset the router to factory settings?
  • A: To reset the router, locate the reset button on the device and press and hold it for about 10 seconds until the lights blink. Release the button, and the router will be restored to factory settings.
• Q: Can I use this router with my existing modem?
  • A: Yes, you can connect the DIR-842 router to your existing modem to create a wireless network in your home or office.

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User Manual
DIR-842
AC1200 Wave 2 MU-MIMO Wi-Fi EasyMesh Gigabit Router
June 2024

 

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi EasyMesh Gigabit Router
User Manual

Introduction

CHAPTER 1. INTRODUCTION

Contents and Audience
This manual describes the router DIR-842 and explains how to configure and operate it. This manual is intended for users familiar with basic networking concepts, who create an in-home local area network, and system administrators, who install and configure networks in offices.

Conventions

Example

Description

text

The body text of the manual.

Before You Begin

A reference to a chapter or section of this manual.

“Quick Installation A reference to a document. Guide”

Change

A name of a menu, menu item, control (field, checkbox, drop-down list, button, etc.).

192.168.0.1

Data that you should enter in the specified field.

! Information

An important note.

Document Structure
Chapter 1 describes the purpose and structure of the document. Chapter 2 gives an overview of the router’s hardware and software features, describes its appearance and the package contents. Chapter 3 explains how to install the router DIR-842 and configure a PC in order to access its webbased interface. Chapter 4 describes all pages of the web-based interface in detail. Chapter 5 includes safety instructions and tips for networking. Chapter 6 introduces abbreviations and acronyms most commonly used in User Manuals for D-Link customer premises equipment.

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Overview

CHAPTER 2. OVERVIEW
General Information
The DIR-842 device is a wireless dual band gigabit router with a built-in 4-port switch. It provides a fast and simple way to create a wireless and wired network at home or in an office.
You are able to connect the wireless router DIR-842 to a cable or DSL modem or to a private Ethernet line and use a high-speed Internet connection to successfully fulfill a wide range of professional tasks. The built-in 4-port switch enables you to connect Ethernet-enabled computers, game consoles, and other devices to your network.
Using the DIR-842 device, you are able to quickly create a high-speed wireless network at home or in your office, which lets computers and mobile devices access the Internet virtually anywhere (within the operational range of your wireless network). Simultaneous activity of 2.4GHz band and 5GHz band allows performing a wide range of tasks. The router can operate as a base station for connecting wireless devices of the standards 802.11a, 802.11b, 802.11g, 802.11n, and 802.11ac (at the wireless connection rate up to 1167Mbps1).
The router supports multiple functions for the wireless interface: several security standards (WEP, WPA/WPA2/WPA3), MAC address filtering, WPS, WMM.
In addition, the device is equipped with a button for switching the Wi-Fi network off/on. If needed, for example, when you leave home, you can easily switch the router’s WLAN by pressing the button, and devices connected to the LAN ports of the router will stay online.
The Band Steering technology simplifies connection to the network and optimizes further operation for the wireless clients. You can configure the wireless network with one name for both bands, so the clients automatically choose the preferred band when they are connecting or when the network conditions change.
The EasyMesh function is D-Link implementation of mesh networks designed to quickly connect several2 devices into one transport network, for example, when it’s required to provide high-quality Wi-Fi coverage without dead zones in living units of complicated planning or it’s needed to create a large temporary Wi-Fi network for an outdoor event.
Multi-user MIMO technology allows to distribute the router’s resources to let multiple wireless clients use the Wi-Fi network efficiently, keeping high rates for HD media streaming, lag-free gaming, and fast transfer of large files.
Transmit Beamforming technology allows to flexibly change the antennas’ radiation pattern and to redistribute the signal directly to wireless devices connected to the router. Smart adjustment of Wi-Fi clients is useful for networks based on several D-Link access points or routers ­ when the smart adjustment function is configured on each of them, a client always connects to the access point (router) with the highest signal level.

1 Up to 300Mbps for 2.4GHz and up to 867Mbps for 5GHz. 2 Up to 6 devices.
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Overview

Support of guest Wi-Fi network allows you to create a separate wireless network with individual security settings and maximum rate limitation. Devices connected to the guest network will be able to access the Internet, but will be isolated from the devices and resources of the router’s LAN.
The wireless router DIR-842 includes a built-in firewall. The advanced security functions minimize threats of hacker attacks, prevent unwanted intrusions to your network, and block access to unwanted websites for users of your LAN.
The SSH protocol support provides more secure remote configuration and management of the router due to encryption of all transmitted traffic, including passwords.
In addition, the router supports IPsec and allows to create secure VPN tunnels. Support of the IKEv2 protocol allows to provide simplified message exchange and use asymmetric authentication engine upon configuration of an IPsec tunnel.
The router also supports the SkyDNS web content filtering service, which provides more settings and opportunities for safer Internet experience for home users of all ages and for professional activities of corporate users.
Now the schedules are also implemented; they can be applied to the rules and settings of the firewall and used to reboot the router at the specified time or every specified time period, to set rules for limitation of wireless client maximum bandwidth, and to enable/disable the wireless network and the Wi-Fi filter.
The new ad blocking function effectively blocks advertisements which appear during web surfing.
You can configure the settings of the wireless router DIR-842 via the user-friendly web-based interface (the interface is available in two languages ­ in Russian and in English).
The configuration wizard allows you to quickly switch DIR-842 to one of the following modes: router (for connection to a wired or wireless ISP), access point, repeater, or client, and then configure all needed setting for operation in the selected mode in several simple steps.
Also DIR-842 supports configuration and management via mobile application for Android smartphones.
You can simply update the firmware: the router itself finds approved firmware on D-Link update server and notifies when ready to install it.

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Overview

Specifications*
Hardware
Processor RAM Flash Interfaces LEDs
Buttons
Antenna MIMO Power connector
Software
WAN connection types
Network functions

· RTL8197FH-VG (1GHz)
· 128MB, DDR2, built in processor
· 128MB, SPI NAND
· 10/100/1000BASE-T WAN port · 4 10/100/1000BASE-T LAN ports
· Power · Internet · WLAN 2.4G · WLAN 5G
· RESET button to restore factory default settings · WPS button to connect mesh network devices, set up wireless connection, and
enable/disable wireless network
· Four external non-detachable antennas (5dBi gain)
· 2 x 2, MU-MIMO
· Power input connector (DC)
· PPPoE · IPv6 PPPoE · PPPoE Dual Stack · Static IPv4 / Dynamic IPv4 · Static IPv6 / Dynamic IPv6 · PPPoE + Static IP (PPPoE Dual Access) · PPPoE + Dynamic IP (PPPoE Dual Access) · PPTP/L2TP + Static IP · PPTP/L2TP + Dynamic IP
· DHCP server/relay · Advanced configuration of built-in DHCP server · Stateful/Stateless mode for IPv6 address assignment, IPv6 prefix delegation · Automatic obtainment of LAN IP address (for access point/repeater/client
modes) · DNS relay · Dynamic DNS · Static IPv4/IPv6 routing · IGMP/MLD Proxy · RIP · Support of UPnP · Support of VLAN · WAN ping respond · Support of SIP ALG · Support of RTSP · WAN failover · Autonegotiation of speed, duplex mode, and flow control / Manual speed and
duplex mode setup for each Ethernet port · Built-in UDPXY application · Wake-on-LAN support

* The device features are subject to change without notice. For the latest versions of the firmware and relevant documentation, visit www.dlink.ru.
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Software
Firewall functions
VPN
Management and monitoring

· Network Address Translation (NAT) · Stateful Packet Inspection (SPI) · IPv4/IPv6 filter · MAC filter · URL filter · Ad blocking function · DMZ · Virtual servers · Built-in SkyDNS web content filtering service
· IPsec/PPTP/L2TP/PPPoE pass-through · PPTP/L2TP tunnels · L2TP over IPsec client · IPsec tunnels
Transport/Tunnel mode IKEv1/IKEv2 support DES encryption NAT Traversal Support of DPD (Keep-alive for VPN tunnels)
· Local and remote access to settings through SSH/TELNET/WEB (HTTP/HTTPS)
· Bilingual web-based interface for configuration and management (Russian/English)
· Support of D-Link Assistant application for Android smartphones · Notification on connection problems and auto redirect to settings · Firmware update via web-based interface · Automatic notification on new firmware version · Saving/restoring configuration to/from file · Support of logging to remote host · Automatic synchronization of system time with NTP server and manual
time/date setup · Ping utility · Traceroute utility · TR-069 client · Schedules for rules and settings of firewall, automatic reboot, limitation of
wireless client maximum bandwidth, and enabling/disabling wireless network and Wi-Fi filter · Automatic upload of configuration file from ISP’s server (Auto Provision) · Configuration of action for hardware buttons

Wireless Module Parameters
Standards
Frequency range
The frequency range depends upon the radio frequency regulations applied in your country Wireless connection security

· IEEE 802.11ac Wave 2 · IEEE 802.11a/b/g/n · IEEE 802.11k/v · IEEE 802.11w
· 2400 ~ 2483.5MHz · 5150 ~ 5350MHz · 5650 ~ 5850MHz
· WEP · WPA/WPA2 (Personal/Enterprise) · WPA3 (Personal) · filter · WPS (PBC/PIN)

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Wireless Module Parameters
Advanced functions
Wireless connection rate
Transmitter output power The maximum value of the transmitter output power depends upon the radio frequency regulations applied in your country

· EasyMesh function · Support of client mode · WMM (Wi-Fi QoS) · Information on connected Wi-Fi clients · Advanced settings · Smart adjustment of Wi-Fi clients · Guest Wi-Fi / support of MBSSID · Rate limitation for wireless network/separate MAC addresses · Periodic scan of channels, automatic switch to least loaded channel · Support of 5GHz TX Beamforming · Autonegotiation of channel bandwidth in accordance with environment
conditions (20/40 Coexistence) · Support of STBC · CoovaChilli authentication portal · Support of Band Steering
· IEEE 802.11a: 6, 9, 12, 18, 24, 36, 48, and 54Mbps · IEEE 802.11b: 1, 2, 5.5, and 11Mbps · IEEE 802.11g: 6, 9, 12, 18, 24, 36, 48, and 54Mbps · IEEE 802.11n (2.4GHz/5GHz): from 6.5 to 300Mbps (MCS0­MCS15) · IEEE 802.11ac (5GHz): from 6.5 to 867Mbps
· 802.11a (typical at room temperature 25 °C) 15dBm at 6, 9, 12, 18, 24, 36, 48, 54Mbps
· 802.11b (typical at room temperature 25 °C) 15dBm at 1, 2, 5.5, 11Mbps
· 802.11g (typical at room temperature 25 °C) 15dBm at 6, 9, 12, 18, 24, 36, 48, 54Mbps
· 802.11n (typical at room temperature 25 °C) 2.4GHz, HT20 15dBm at MCS0/8~7/15 2.4GHz, HT40 15dBm at MCS0/8~7/15 5GHz, HT20 15dBm at MCS0/8~7/15 5GHz, HT40 15dBm at MCS0/8~7/15
· 802.11ac (typical at room temperature 25 °C) VHT20 15dBm at MCS0~8 VHT40 15dBm at MCS0~9 VHT80 15dBm at MCS0~9

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Wireless Module Parameters
Receiver sensitivity

· 802.11a (typical at PER < 10% (1000-byte PDUs) at room temperature 25 °C) -95dBm at 6Mbps -93dBm at 9Mbps -92dBm at 12Mbps -90dBm at 18Mbps -87dBm at 24Mbps -84dBm at 36Mbps -80dBm at 48Mbps -78dBm at 54Mbps
· 802.11b (typical at PER = 8% (1000-byte PDUs) at room temperature 25 °C) -90dBm at 1Mbps -92dBm at 2Mbps -93dBm at 5.5Mbps -96dBm at 11Mbps
· 802.11g (typical at PER < 10% (1000-byte PDUs) at room temperature 25 °C) -94dBm at 6Mbps -92dBm at 9Mbps -90dBm at 12Mbps -89dBm at 18Mbps -87dBm at 24Mbps -84dBm at 36Mbps -80dBm at 48Mbps -77dBm at 54Mbps
· 802.11n (typical at PER = 10% (1000-byte PDUs) at room temperature 25 °C) 2.4GHz, HT20 -95dBm at MCS0/8 -91dBm at MCS1/9 -88dBm at MCS2/10 -86dBm at MCS3/11 -82dBm at MCS4/12 -79dBm at MCS5/13 -77dBm at MCS6/14 -75dBm at MCS7/15 2.4GHz, HT40 -92dBm at MCS0/8 -89dBm at MCS1/9 -86dBm at MCS2/10 -83dBm at MCS3/11 -80dBm at MCS4/12 -77dBm at MCS5/13 -74dBm at MCS6/14 -72dBm at MCS7/15 5GHz, HT20 -95dBm at MCS0/8 -93dBm at MCS1/9 -90dBm at MCS2/10 -87dBm at MCS3/11 -83dBm at MCS4/12 -79dBm at MCS5/13 -77dBm at MCS6/14 -75dBm at MCS7/15 5GHz, HT40 -92dBm at MCS0/8 -89dBm at MCS1/9 -86dBm at MCS2/10 -83dBm at MCS3/11 -80dBm at MCS4/12 -76dBm at MCS5/13 -74dBm at MCS6/14 -72dBm at MCS7/15

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Wireless Module Parameters
Modulation schemes

· 802.11ac (typical at PER = 10% (1000-byte PDUs) at room temperature 25 °C) VHT20 -95dBm at MCS0 -92dBm at MCS1 -90dBm at MCS2 -86dBm at MCS3 -83dBm at MCS4 -79dBm at MCS5 -77dBm at MCS6 -75dBm at MCS7 -71dBm at MCS8 VHT40 -92dBm at MCS0 -89dBm at MCS1 -87dBm at MCS2 -84dBm at MCS3 -80dBm at MCS4 -76dBm at MCS5 -74dBm at MCS6 -72dBm at MCS7 -68dBm at MCS8 -66dBm at MCS9 VHT80 -89dBm at MCS0 -86dBm at MCS1 -83dBm at MCS2 -80dBm at MCS3 -77dBm at MCS4 -73dBm at MCS5 -71dBm at MCS6 -69dBm at MCS7 -66dBm at MCS8 -64dBm at MCS9
· 802.11a: BPSK, QPSK, 16QAM, 64QAM with OFDM · 802.11b: DQPSK, DBPSK, DSSS, CCK · 802.11g: BPSK, QPSK, 16QAM, 64QAM with OFDM · 802.11n: BPSK, QPSK, 16QAM, 64QAM with OFDM · 802.11ac: BPSK, QPSK, 16QAM, 64QAM, up to 256QAM with OFDM

Physical Parameters
Dimensions (L x W x H) Weight

· 177 x 139 x 50 mm (6.97 x 5.47 x 1.97 in) · 287 g (0.63 lb)

Operating Environment
Power Temperature
Humidity

· Output: 12V DC, 1A
· Operating: from 0 to 40 °C · Storage: from -20 to 65 °C
· Operating: from 10% to 90% (non-condensing) · Storage: from 5% to 95% (non-condensing)

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi EasyMesh Gigabit Router User Manual
Product Appearance
Upper Panel

Overview

LED
Power

Figure 1. Upper panel view.

Mode

Description

Blinking orange The router is being loaded.

Solid white

The router is powered on.

No light

The router is powered off.

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LED
Internet
WLAN 2.4G WLAN 5G

Mode

Description

Solid white

The default WAN connection is on.

Solid orange

· The default WAN connection is off, or · there are no WAN connections created, or · the WAN cable is not connected.

Blinking orange

The firmware is being updated.
When the LED is blinking for more than two minutes, the device is in the emergency mode. In this case, it is required to power the device off and on.
If the device is loaded in the emergency mode again, it is necessary to restore the factory default settings via the hardware RESET button.

No light

The device is configured as an access point or repeater.

Solid white

The router’s WLAN of the relevant band is on.

Data transfer through the Wi-Fi network of the relevant
Fast blinking white
band.

When attempting to connect a mesh network device in the Controller role or add a wireless device via the hardware WPS button, both LEDs are blinking.
Slow blinking white When attempting to connect mesh network devices in the Agent role or add a wireless device via the webbased interface, the LED of the band selected in the settings of the EasyMesh or WPS function is blinking.

No light

The router’s WLAN of the relevant band is off.

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi EasyMesh Gigabit Router User Manual
Back Panel

Overview

Port WPS
RESET LAN 1-4

Figure 2. Back panel view.
Description
A button to connect mesh network devices, set up wireless connection (the WPS function), and enable/disable the wireless network. To connect mesh network devices: with the device turned on and factory default settings or with the EasyMesh function enabled in the router settings, press the button, hold it for 2 seconds, and release. To use the WPS function: with the device turned on, press the button, hold it for 2 seconds, and release. The WLAN 2.4G and WLAN 5G LEDs should start blinking white slowly. To disable the router’s wireless network: with the device turned on, press the button, hold for 10 seconds, and release. The WLAN 2.4G and WLAN 5G LEDs should turn off.
A button to restore the factory defaults. To restore the factory defaults, push the button (with the device turned on), hold it for 10 seconds, and then release the button.
4 Ethernet ports to connect computers or network devices.

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Port

Description

INTERNET DC IN 12V=1A

A port to connect to a cable or DSL modem or to a private Ethernet line (it is recommended to use the cable included in the delivery package).
Power connector.

The device is also equipped with four external non-detachable Wi-Fi antennas.

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Delivery Package
The following should be included: · Router DIR-842 · Power adapter DC 12V/1A · Ethernet cable · “Quick Installation Guide” (brochure).
The “User Manual” and “Quick Installation Guide” documents are available on D-Link website (see www.dlink.ru).

!

Using a power supply with a different voltage rating than the one included will cause damage and void the warranty for this product.

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Installation and Connection

CHAPTER 3. INSTALLATION AND CONNECTION
Before You Begin
Please, read this manual prior to installing the device. Make sure that you have all the necessary information and equipment.
Computer or Mobile Device
Configuration of the wireless dual band gigabit router with a built-in 4-port switch DIR-842 (hereinafter referred to as “the router”) is performed via the built-in web-based interface. The webbased interface is available from any operating system that supports a web browser. Also you can use D-Link Assistant application for Android mobile devices (smartphones or tablets).
PC Web Browser The following web browsers are recommended:
· Apple Safari 8 and later · Google Chrome 48 and later · Microsoft Internet Explorer 10 and later · Microsoft Edge 20.10240 and later · Mozilla Firefox 44 and later · Opera 35 and later. For successful operation, JavaScript should be enabled on the web browser. Make sure that JavaScript has not been disabled by other software (such as virus protection or web user security packages) running on your computer.
Wired or Wireless NIC (Ethernet or Wi-Fi Adapter)
Any computer that uses the router should be equipped with an Ethernet or Wi-Fi adapter (NIC). If your computer is not equipped with such a device, install an Ethernet or Wi-Fi adapter prior to using the router.
Wireless Connection
Wireless workstations from your network should be equipped with a wireless 802.11a, b, g, n, or ac NIC (Wi-Fi adapter). In addition, you should specify the values of SSID, channel number and security settings defined in the web-based interface of the router for all these wireless workstations.

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Connecting to Mobile Device with D-Link Assistant Application
1. Connect the power cord to the power connector port on the back panel of the router, then plug the power adapter into an electrical outlet or power strip.
2. Make sure that the Wi-Fi connection on your mobile device is on. To switch it on, go to the mobile device settings.
3. In the list of available wireless networks on your mobile device, select the wireless network DIR-842 (for operating in the 2.4GHz band) or DIR-842-5G (for operating in the 5GHz band).
4. In the opened window, enter the network key (see WPS PIN on the barcode label on the bottom panel of the device) as the password and connect to the wireless network of DIR842.
5. Launch D-Link Assistant application on your mobile device. The application is available for Android smartphones in Google Play.

D-Link Assistant for Android
6. Make sure that the application correctly identified the router to which you connect. 7. In the application interface, select the Advanced Settings menu option to go through the
Initial Configuration Wizard or finish the Wizard earlier and go the configuration menu (for the description of the configuration pages, see the relevant section of the Configuring via Web-based Interface chapter). As you perform initial configuration of the router via Wi-Fi connection, note that
! immediately after changing the wireless default settings of the router you will need to reconfigure the wireless connection using the newly specified settings.
If you changed the administrator password via the web-based interface, when DIR-842 is accessed with the application the next time, click the ENTER LOGIN/PASSWORD button. Enter the username (admin) and the password you specified.
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Connecting to PC
PC with Ethernet Adapter
1. Connect an Ethernet cable between any of LAN ports located on the back panel of the router and the Ethernet port of your PC.
2. Connect the power cord to the power connector port on the back panel of the router, then plug the power adapter into an electrical outlet or power strip.
Then make sure that your PC is configured to obtain an IP address automatically (as DHCP client).

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Obtaining IP Address Automatically (OS Windows 7)
1. Click the Start button and proceed to the Control Panel window. 2. Select the Network and Sharing Center section. (If the Control Panel has the category
view (the Category value is selected from the View by drop-down list in the top right corner of the window), choose the View network status and tasks line under the Network and Internet section.)on the left part of the window, select the C

Figure 3. The Control Panel window. Page 21 of 254

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3. In the menu located on the left part of the window, select the Change adapter settings line.

Figure 4. The Network and Sharing Center window. Page 22 of 254

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4. In the opened window, right-click the relevant Local Area Connection icon and select the Properties line in the menu displayed.

Figure 5. The Network Connections window.

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5. In the Local Area Connection Properties window, on the Networking tab, select the Internet Protocol Version 4 (TCP/IPv4) line. Click the Properties button.

Figure 6. The Local Area Connection Properties window. Page 24 of 254

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6. Make sure that the Obtain an IP address automatically and Obtain DNS server address automatically choices of the radio buttons are selected. Click the OK button.

Figure 7. The Internet Protocol Version 4 (TCP/IPv4) Properties window.
7. Click the OK button in the connection properties window.
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Obtaining IP Address Automatically (OS Windows 10)
1. Click the Start button and proceed to the Settings window. 2. Select the Network & Internet section.

Figure 8. The Windows Settings window. Page 26 of 254

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3. In the Change your network settings section, select the Change adapter options line.

Figure 9. The Network & Internet window. Page 27 of 254

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4. In the opened window, right-click the relevant Local Area Connection icon and select the Properties line in the menu displayed.

Figure 10. The Network Connections window.

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5. In the Local Area Connection Properties window, on the Networking tab, select the Internet Protocol Version 4 (TCP/IPv4) line. Click the Properties button.

Figure 11. The local area connection properties window. Page 29 of 254

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6. Make sure that the Obtain an IP address automatically and Obtain DNS server address automatically choices of the radio buttons are selected. Click the OK button.

Figure 12. The Internet Protocol Version 4 (TCP/IPv4) Properties window.
7. Click the Close button in the connection properties window.
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PC with Wi-Fi Adapter
1. Connect the power cord to the power connector port on the back panel of the router, then plug the power adapter into an electrical outlet or power strip.
2. Make sure that your Wi-Fi adapter is on. As a rule, modern notebooks with built-in wireless NICs are equipped with a button or switch that turns on/off the wireless adapter (refer to your PC documents). If your PC is equipped with a pluggable wireless NIC, install the software provided with your Wi-Fi adapter.
Then make sure that your Wi-Fi adapter is configured to obtain an IP address automatically (as DHCP client).

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Obtaining IP Address Automatically and Connecting to Wireless Network (OS Windows 7)
1. Click the Start button and proceed to the Control Panel window. 2. Select the Network and Sharing Center section. (If the Control Panel has the category
view (the Category value is selected from the View by drop-down list in the top right corner of the window), choose the View network status and tasks line under the Network and Internet section.)

Figure 13. The Control Panel window.
3. In the menu located on the left part of the window, select the Change adapter settings line.
4. In the opened window, right-click the relevant Wireless Network Connection icon. Make sure that your Wi-Fi adapter is on, then select the Properties line in the menu displayed.
5. In the Wireless Network Connection Properties window, on the Networking tab, select the Internet Protocol Version 4 (TCP/IPv4) line. Click the Properties button.
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6. Make sure that the Obtain an IP address automatically and Obtain DNS server address automatically choices of the radio buttons are selected. Click the OK button.

Figure 14. The Internet Protocol Version 4 (TCP/IPv4) Properties window.
7. Click the OK button in the connection properties window. 8. To open the list of available wireless networks, select the icon of the wireless network
connection and click the Connect To button or left-click the network icon in the notification area located on the right side of the taskbar.
Figure 15. The notification area of the taskbar.
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9. In the opened Wireless Network Connection window, select the wireless network DIR-842 (for operating in the 2.4GHz band) or DIR-842-5G (for operating in the 5GHz band) and click the Connect button.

Figure 16. The list of available networks.
10. In the opened window, enter the network key (see WPS PIN on the barcode label on the bottom panel of the device) in the Security key field and click the OK button.
11. Wait for about 20-30 seconds. After the connection is established, the network icon will be displayed as the signal level scale. If you perform initial configuration of the router via Wi-Fi connection, note that
! immediately after changing the wireless default settings of the router you will need to reconfigure the wireless connection using the newly specified settings.
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Obtaining IP Address Automatically and to Wireless Network (OS Windows 10)
1. Click the Start button and proceed to the Settings window. 2. Select the Network & Internet section.

Connecting

Figure 17. The Windows Settings window.
3. In the Change your network settings section, select the Change adapter options line.
4. In the opened window, right-click the relevant Wireless Network Connection icon. Make sure that your Wi-Fi adapter is on, then select the Properties line in the menu displayed.
5. In the Wireless Network Connection Properties window, on the Networking tab, select the Internet Protocol Version 4 (TCP/IPv4) line. Click the Properties button.
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6. Make sure that the Obtain an IP address automatically and Obtain DNS server address automatically choices of the radio buttons are selected. Click the OK button.

Figure 18. The Internet Protocol Version 4 (TCP/IPv4) Properties window.
7. Click the Close button in the connection properties window. 8. To open the list of available wireless networks, select the icon of the wireless network
connection and click the Connect To button or left-click the network icon in the notification area located on the right side of the taskbar.
Figure 19. The notification area of the taskbar.
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9. In the opened Wireless Network Connection window, select the wireless network DIR-842 (for operating in the 2.4GHz band) or DIR-842-5G (for operating in the 5GHz band) and click the Connect button.

Figure 20. The list of available networks.
10. In the opened window, enter the network key (see WPS PIN on the barcode label on the bottom panel of the device) in the Security key field and click the Next button.
11. Allow or forbid your PC to be discoverable by other devices on this network (Yes / No).

Figure 21. PC discovery settings.
12. Wait for about 20-30 seconds. After the connection is established, the network icon will be displayed as a dot with curved lines indicating the signal level. If you perform initial configuration of the router via Wi-Fi connection, note that
! immediately after changing the wireless default settings of the router you will need to reconfigure the wireless connection using the newly specified settings.
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Connecting to Web-based Interface
When you have configured your computer, you can access the web-based interface and configure needed parameters (create a WAN connection, change the parameters of the wireless network, specify the settings of the firewall, etc.).
Clients connected to the router with default settings do not have access to the Internet. To
! get started, please set your own password used to access the web-based interface and, if needed, configure other settings recommended by your ISP.
Start a web browser (see the Before You Begin section, page 18). In the address bar of the web browser, enter the domain name of the router (by default, dlinkrouter.local) with a dot at the end and press the Enter key. Also you can enter the IP address of the device (by default, 192.168.0.1).

Figure 22. Connecting to the web-based interface of the DIR-842 device.
If the error “The page cannot be displayed” (or “Unable to display the page”/”Could not
! connect to remote server”) occurs upon connecting to the web-based interface of the router, make sure that you have properly connected the router to your computer.
If the device has not been configured previously or the default settings have been restored, after access to the web-based interface the Initial Configuration Wizard opens (see the Initial Configuration Wizard section, page 45).

Figure 23. The page for running the Initial Configuration Wizard.

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If you configured the device previously, after access to the web-based interface the login page opens. Enter the username (admin) in the Username field and the password you specified in the Password field, then click the LOGIN button.

Figure 24. The login page.
In order not to log out, move the Stay signed in switch to the right. After closing the web browser or rebooting the device, you need to enter the username and the password again. If you enter a wrong password several times, the web-based interface will be blocked for a while. Please wait for one minute and reenter the password you specified.

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Web-based Interface Structure
Summary Page
On the Summary page, detailed information on the device state is displayed.

Figure 25. The summary page. Page 40 of 254

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The Device Information section displays the model and hardware version of the router, the firmware version, and other data.
To contact the technical support group (to send an e-mail), left-click the support e-mail address. After clicking the line, the e-mail client window for sending a new letter to the specified address opens.
To change the operation mode of the device, left-click the name of the mode in the Device mode line. In the opened window, click the Initial Configuration Wizard link (for the detailed description of the Wizard, see the Initial Configuration Wizard section, page 45).
If needed, you can disable the LEDs of the device. To do this, move the Enable LEDs switch to the left. In order to enable the LEDs, move the switch to the right and reboot the device.
The Wi-Fi 2.4 GHz and Wi-Fi 5 GHz sections display data on the state of the device’s wireless network, its name and the authentication type, and availability of an additional wireless network in the relevant band.
In the WAN section, data on the type and status of the existing WAN connection are displayed. In the LAN section, the IPv4 and IPv6 address of the router and the number of wired and wireless clients of the device are displayed. The LAN Ports section displays the state of the device’s LAN ports and data transfer mode of active ports.

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Home Page
The Home page displays links to the most frequently used pages with device’s settings.

Figure 26. The Home page.
Other settings of the router are available in the menu in the left part of the page.
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Menu Sections
To configure the router use the menu in the left part of the page. In the Initial Configuration section you can run the Initial Configuration Wizard. The Wizard allows you to configure the router for operation in the needed mode and specify all parameters necessary for getting started (for the description of the Wizard, see the Initial Configuration Wizard section, page 45).
The pages of the Statistics section display data on the current state of the router (for the description of the pages, see the Statistics section, page 74).
The pages of the Connections Setup section are designed for configuring basic parameters of the LAN interface of the router and creating a connection to the Internet (for the description of the pages, see the Connections Setup section, page 82).
The pages of the Wi-Fi section are designed for specifying all needed settings of the router’s wireless network (for the description of the pages, see the Wi-Fi section, page 121).
The pages of the Advanced section are designed for configuring additional parameters of the router (for the description of the pages, see the Advanced section, page 159).
The pages of the Firewall section are designed for configuring the firewall of the router (for the description of the pages, see the Firewall section, page 198).
The pages of the System section provide functions for managing the internal system of the router (for the description of the pages, see the System section, page 218).
The pages of the SkyDNS section are designed for configuring the SkyDNS web content filtering service (for the description of the pages, see the SkyDNS section, page 244).
To exit the web-based interface, click the Logout line of the menu.

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Notifications
The router’s web-based interface displays notifications in the top right part of the page.

Figure 27. The web-based interface notifications.
Click the icon displaying the number of notifications to view the complete list and click the relevant button.

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CHAPTER 4. CONFIGURING VIA WEB-BASED INTERFACE

Initial Configuration Wizard
To start the Initial Configuration Wizard, go to the Initial Configuration section. On the opened page, click the OK button and wait until the factory default settings are restored.

Figure 28. Restoring the default settings in the Wizard.
If you perform initial configuration of the router via Wi-Fi connection, please make sure that you are connected to the wireless network DIR-842 (for operating in the 2.4GHz band) or DIR-8425G (for operating in the 5GHz band) and click the NEXT button.

Figure 29. Checking connection to the wireless network.
Click the START button.

Figure 30. Starting the Wizard.

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On the opened page, click YES in order to leave the current language of the web-based interface or click NO to select the other language.

Figure 31. Selecting a language.
You can finish the wizard earlier and go to the menu of the web-based interface. To do this, click the ADVANCED SETTINGS button. On the opened page, change the default settings: specify the administrator password in the User’s interface password and Password confirmation and the name of the wireless network in the 2.4GHz and 5GHz bands in the Network name 2.4 GHz (SSID) and Network name 5 GHz (SSID) fields correspondingly. Then click the APPLY button.

Figure 32. Changing the default settings.
To continue the configuration of the router via the Wizard, click the CONTINUE button.
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Selecting Operation Mode
Select the needed operation mode and click the NEXT button.
Router
In order to connect your device to a wired ISP, on the Device mode page, from the Connection method list, select the Autonomous value. Then from the Work mode list select the Router value. In this mode you can configure a WAN connection, set your own settings for the wireless network in the 2.4GHz and 5GHz bands, configure LAN ports to connect an STB or VoIP phone, and set your own password for access to the web-based interface of the device.

Figure 33. Selecting an operation mode. The Router mode.

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In order to connect your device to a wireless ISP (WISP), on the Device mode page, from the Connection method list, select the Autonomous value. Then from the Work mode list select the WISP Repeater value. In this mode you can connect your device to another access point, configure a WAN connection, set your own settings for the wireless network in the 2.4GHz and 5GHz bands, and set your own password for access to the web-based interface of the device.

Figure 34. Selecting an operation mode. The WISP Repeater mode.

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Access Point or Repeater
In order to connect your device to a wired router for adding a wireless network to the existing local network, on the Device mode page, from the Connection method list, select the Autonomous value. Then from the Work mode list select the Access point value. In this mode you can change the LAN IP address, set your own settings for the wireless network in the 2.4GHz and 5GHz bands, and set your own password for access to the web-based interface of the device.

Figure 35. Selecting an operation mode. The Access point mode.

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In order to connect your device to a wireless router for extending the range of the existing wireless network, on the Device mode page, from the Connection method list, select the Autonomous value. Then from the Work mode list select the Repeater value. In this mode you can change the LAN IP address, connect your device to another access point, set your own settings for the wireless network in the 2.4GHz and 5GHz bands, and set your own password for access to the web-based interface of the device.

Figure 36. Selecting an operation mode. The Repeater mode.
In order to let wired PCs connected to your device access the network of a wireless router, on the Device mode page, from the Connection method list, select the Autonomous value. Then from the Work mode list select the Client value. In this mode you can change the LAN IP address, connect your device to another access point, and set your own password for access to the web-based interface of the device.

Figure 37. Selecting an operation mode. The Client mode. Page 50 of 254

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Mesh Network Main Device (Controller)
In order to configure DIR-842 as a main device of your mesh network, from the Connection method list, select the EasyMesh value. Then from the Device role list, select the Controller value. From the Backhaul list, select the band where your mesh network operates. Also you can connect devices into the mesh network using an Ethernet cable by connecting it to LAN ports of the main and subordinate device or two subordinate devices.
! The EasyMesh function cannot operate in both bands simultaneously. Select one of the bands (2.4GHz or 5GHz) for all devices of the configured network.
You can connect Agent devices with factory defaults to the main mesh network device via the hardware WPS button. To do this, on the main device, in the Backhaul drop-down list, select the Ethernet or 5 GHz option and complete the configuration of the main device via the Wizard. Then press the hardware WPS button on both devices, hold it for 2 seconds, and release. Wait for about 4 minutes for the subordinate device to receive all mesh network settings and web-based interface password from the main device.

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In order to connect your main device to a wired ISP, from the Work mode list, select the Router value. In this mode you can configure a WAN connection, set your own settings for the wireless network in the 2.4GHz and 5GHz bands, configure LAN ports to connect an STB or VoIP phone, and set your own password for access to the web-based interface of the device.

Figure 38. Configuring the EasyMesh function for the main device. The Router mode. Page 52 of 254

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In order to connect your main device to a wireless ISP (WISP), from the Work mode list, select the WISP Repeater value. In this mode you can connect your device to another access point, configure a WAN connection, set your own settings for the wireless network in the 2.4GHz and 5GHz bands, and set your own password for access to the web-based interface of the device.

Figure 39. Configuring the EasyMesh function for a main device. The WISP Repeater mode. Page 53 of 254

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Mesh Network Subordinate Device (Agent)
In order to configure DIR-842 as a subordinate device of your mesh network, from the Connection method list, select the EasyMesh value. Then from the Device role list, select the Agent value. From the Backhaul list, select the band where your main device (in the Controller role) operates. Also you can connect devices into the mesh network using an Ethernet cable by connecting it to LAN ports of the main and subordinate device or two subordinate devices.
Then a subordinate device is configured in the access point mode. In this mode you can change the LAN IP address and set your own password for access to the web-based interface of the device.

Figure 40. Configuring the EasyMesh function for a subordinate device. Page 54 of 254

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Changing LAN IPv4 Address
This configuration step is available for the Access point, Repeater, and Client modes. 1. Select the Automatic obtainment of IPv4 address to let DIR-842 automatically obtain the LAN IPv4 address. 2. In the Hostname field, you should specify a domain name of the router using which you can access the web-based interface after finishing the Wizard. Enter a new domain name of the router ending with .local or leave the value suggested by the router.
! In order to access the web-based interface using the domain name, in the address bar of the web browser, enter the name of the router with a dot at the end.
If you want to manually assign the LAN IPv4 address for DIR-842, do not select the Automatic obtainment of IPv4 address checkbox and fill in the IP address, Subnet mask, DNS IP address, Hostname fields and, if needed, the Gateway IP address field. Make sure that the assigned address does not coincide with the LAN IPv4 address of the router to which your device connects.

Figure 41. The page for changing the LAN IPv4 address.
3. Click the NEXT button to continue or click the BACK button to return to the previous page.
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Wi-Fi Client
This configuration step is available for the WISP Repeater, Repeater, and Client modes. 1. On the Wi-Fi lient page, click the WIRELESS NETWORKS button and select the network to which you want to connect in the opened window. When you select a network, the Network name (SSID) and BSSID fields are filled in automatically.
If you cannot find the needed network in the list, click the UPDATE LIST icon ( ).
2. If a password is needed to connect to the selected network, fill in the relevant field. Click the Show icon ( ) to display the entered password.

Figure 42. The page for configuring the Wi-Fi client.
If you connect to a hidden network, select the band where the hidden network operates from the Frequency band list and enter the network name in the Network name (SSID) field. Then select a needed value from the Network authentication list and then, if needed, enter the password in the relevant field.
When the Open or WEP authentication type is selected, the following settings are displayed on the page:

Parameter

Description

For Open authentication type only.

Enable encryption WEP

The checkbox activating WEP encryption. When the checkbox is selected, the Default key ID drop-down list, the Encryption key WEP as HEX checkbox, and four Encryption key fields are displayed on the page.

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Parameter

Description

Default key ID

The number of the key (from first to fourth) which will be used for WEP encryption.

Encryption key WEP as Select the checkbox to set a hexadecimal number as a key for

HEX

encryption.

Encryption key (1-4)

Keys for WEP encryption. The router uses the key selected from the Default key ID drop-down list. It is required to specify all the fields. Click the Show icon ( ) to display the entered key.

When the WPA-PSK, WPA2-PSK, WPA-PSK/WPA2-PSK mixed, WPA3-SAE, or WPA2PSK/WPA3-SAE mixed authentication type is selected, the following fields are displayed:

Parameter

Description

Password PSK

A password for WPA encryption. Click the Show icon ( ) to display the entered password.

An encryption method: TKIP, AES, or TKIP+AES.

Encryption type

TKIP and TKIP+AES encryption types are not available for WPA3-SAE and WPA2-PSK/WPA3-SAE mixed authentication types.

3. Click the NEXT button to continue or click the BACK button to return to the previous page.

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Configuring WAN Connection
This configuration step is available for the Router and WISP Repeater modes.
You should configure your WAN connection in accordance with data provided by your
! Internet service provider (ISP). Make sure that you have obtained all necessary information prior to configuring your connection. Otherwise contact your ISP.
1. On the Internet connection type page, click the SCAN button (available for the Router mode only) to automatically specify the connection type used by your ISP or manually select the needed value from the Connection type list.
2. Specify the settings necessary for the connection of the selected type. 3. If a particular MAC address was registered by your ISP upon concluding the agreement,
from the MAC address assignment method drop-down list (available for the Router mode only), select the Manual value and enter this address in the MAC address field. Choose the Clone MAC address of your device value to place the MAC address of your network interface card in the field, or leave the Default MAC address value to place the router’s WAN interface MAC address in the field. 4. If the Internet access is provided via a VLAN channel, select the Use VLAN checkbox and fill in the VLAN ID field (available for the Router mode only). 5. Click the NEXT button to continue or click the BACK button to return to the previous page.

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Static IPv4 Connection

Configuring via Web-based Interface

Figure 43. The page for configuring Static IPv4 WAN connection.
Fill in the following fields: IP address, Subnet mask, Gateway IP address, and DNS IP address.
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Static IPv6 Connection

Configuring via Web-based Interface

Figure 44. The page for configuring Static IPv6 WAN connection.
Fill in the following fields: IP address, Prefix, Gateway IP address, and DNS IP address.
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PPPoE, IPv6 PPPoE, PPPoE Dual Stack, PPPoE + Dynamic IP (PPPoE Dual Access) Connections

Figure 45. The page for configuring PPPoE WAN connection.
In the Username field enter the login and in the Password field enter the password provided by your ISP. Click the Show icon ( ) to display the entered password. If authorization is not required, select the Without authorization checkbox.
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PPPoE + Static IP (PPPoE Dual Access) Connection

Figure 46. The page for configuring PPPoE + Static IP (PPPoE Dual Access) WAN connection.
In the Username field enter the login and in the Password field enter the password provided by your ISP. Click the Show icon ( ) to display the entered password. If authorization is not required, select the Without authorization checkbox. Also fill in the following fields: IP address, Subnet mask, Gateway IP address, and DNS IP address.
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PPTP + Dynamic IP or L2TP + Dynamic IP Connection

Figure 47. The page for configuring PPTP + Dynamic IP WAN connection.
In the Username field enter the login and in the Password field enter the password provided by your ISP. Click the Show icon ( ) to display the entered password. If authorization is not required, select the Without authorization checkbox. In the VPN server address field, enter the IP address or full domain name of the PPTP or L2TP authentication server.
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PPTP + Static IP or L2TP + Static IP Connection

Configuring via Web-based Interface

Figure 48. The page for configuring PPTP + Static IP WAN connection.
In the Username field enter the login and in the Password field enter the password provided by your ISP. Click the Show icon ( ) to display the entered password. If authorization is not required, select the Without authorization checkbox. In the VPN server address field, enter the IP address or full domain name of the PPTP or L2TP authentication server. Also fill in the following fields: IP address, Subnet mask, Gateway IP address, and DNS IP address.
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Configuring Wireless Network
This configuration step is available for the Router, Access point, WISP Repeater, and Repeater modes.
1. On the Wireless Network 2.4 GHz page, in the Network name field, specify your own name for the wireless network in the 2.4GHz band or leave the value suggested by the router.
2. In the Password field, specify your own password for access to the wireless network or leave the value suggested by the router (WPS PIN of the device, see the barcode label).
3. If the router is used as a Wi-Fi client, you can specify the same parameters of the wireless network as specified for the network to which you are connecting. To do this, click the USE button (available for the WISP Repeater and Repeater modes only).
4. You can restore the parameters of the wireless network specified before resetting to factory defaults. To do this, click the RESTORE button.

Figure 49. The page for configuring the wireless network. Page 65 of 254

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5. If you want to create an additional wireless network isolated from your LAN in the 2.4GHz band, select the Enable guest network checkbox (available for the Router and WISP Repeater modes only).

Figure 50. The page for configuring the wireless network.
6. In the Network name field, specify your own name for the guest wireless network or leave the value suggested by the router.
7. If you want to create a password for access to the guest wireless network, deselect the Open network checkbox and fill in the Password field.
8. If you want to limit the bandwidth of the guest wireless network, select the Enable shaping checkbox and fill in the Shaping field.
9. Click the NEXT button to continue or click the BACK button to specify other settings. 10. On the Wireless Network 5 GHz page, specify needed settings for the wireless network
in the 5GHz band and click the NEXT button.

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Configuring LAN Ports for IPTV/VoIP
This configuration step is available for the Router mode. 1. On the IPTV page, select the Is an STB connected to the device checkbox.

Figure 51. The page for selecting a LAN port to connect an IPTV set-top box.
2. Select a free LAN port for connecting your set-top box. 3. If the IPTV service is provided via a VLAN channel, select the Use VLAN ID checkbox
and fill in the VLAN ID field. 4. Click the NEXT button to continue or click the BACK button to specify other settings.

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5. On the VoIP page, select the Is an IP phone connected to the device checkbox.

Figure 52. The page for selecting a LAN port to connect a VoIP phone.
6. Select a free LAN port for connecting your IP phone. 7. If the VoIP service is provided via a VLAN channel, select the Use VLAN ID checkbox
and fill in the VLAN ID field. 8. Click the NEXT button to continue or click the BACK button to specify other settings.

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Changing Web-based Interface Password
On this page, you should change the default administrator password. To do this, enter a new password in the User’s interface password and Password confirmation fields. You may set any password except admin. Use digits, Latin letters (uppercase and/or lowercase), and other characters available in the US keyboard layout.3

Figure 53. The page for changing the web-based interface password.
Remember or write down the new password for the administrator account. In case of losing
! the new password, you can access the settings of the router only after restoring the factory default settings via the hardware RESET button. This procedure wipes out all settings that you have configured for your router. Click the NEXT button to continue or click the BACK button to return to the previous page. On the next page, check all specified settings. Also you can save a text file with parameters set by the Wizard to your PC. To do this, click the SAVE CONFIGURATION FILE button and follow the dialog box appeared. To finish the Wizard, click the APPLY button. The router will apply settings and reboot. Click the BACK button to specify other settings.
3 0-9, A-Z, a-z, space, !”#$%&'()*+,-./:;<=>?@[]^_`{|}~. Page 69 of 254

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If the Wizard has configured a WAN connection, after clicking the APPLY button, the page for checking the Internet availability opens.

Figure 54. Checking the Internet availability.
If the router has been successfully connected to the Internet, click the FINISH button.
If problems appeared when connecting to the Internet, click the CHECK AGAIN button to recheck the state of the WAN connection.
If problems of connection have not been solved, contact the technical support of your ISP (as a rule, the technical support phone is provided with the agreement) or the D-Link technical support (the phone number will be displayed on the page after several attempts of checking the connection).
To specify other settings, click the ADVANCED SETTINGS button. After clicking the ADVANCED SETTINGS button, the Home page opens (see the Home Page section, page 42).

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Connection of Multimedia Devices
The Multimedia Devices Connection Wizard helps to configure LAN ports or available wireless interfaces of the router for connecting additional devices, for example, an IPTV set-top box or IP phone. Contact your ISP to clarify if you need to configure DIR-842 in order to use these devices.
To start the Wizard, on the Home page, select the Connection of Multimedia Devices section.
If you need to select a port or wireless interface in order to use an additional device, left-click the relevant element in the LAN section (the selected element will be marked with a frame). Then click the APPLY button.

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If you need to configure a connection via VLAN, click the ADVANCED MODE button.

Figure 56. The Multimedia Devices Connection Wizard. The advanced mode.
In the WAN section, click the Add icon ( ).
Figure 57. Adding a connection.
In the opened window, specify a name of the connection for easier identification in the Name field (you can specify any name). Specify the VLAN ID provided by your ISP and click the SAVE button. Then in the LAN section, from the Bridged with drop-down list of the element corresponding to the LAN port or wireless interface to which the additional device is connected, select the created connection. Click the APPLY button.
! The selected port or wireless interface cannot use the default connection to access the Internet.
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To deselect the port or wireless interface in the simplified mode, left-click the selected element (the frame will disappear) and click the APPLY button.
To deselect the port or wireless interface in the advanced mode, select the No value from the Bridged with drop-down list of the element corresponding to the needed LAN port or interface. Then in the WAN section, select the connection via VLAN which will not be used any longer and click the DELETE button. Then click the APPLY button.

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Statistics
The pages of this section display data on the current state of the router: · network statistics · IP addresses leased by the DHCP server · the routing rules and routing tables · data on devices connected to the router’s network and its web-based interface, and information on current sessions of these devices · statistics for traffic passing through ports of the router · addresses of active multicast groups · statistics for IPsec tunnels of the router.
Network Statistics
On the Statistics / Network Statistics page, you can view statistics for all connections existing in the system (WAN connections, LAN, WLAN). For each connection the following data are displayed: name and state (when the connection is on, its name is highlighted in green, when the connection is off, its name is highlighted in red), IP address and subnet mask, and volume of data received and transmitted (with increase of the volume the units of measurement are changed automatically: byte, Kbyte, Mbyte, Gbyte).

Figure 58. The Statistics / Network Statistics page.
To view detailed data on a connection, click the line corresponding to this connection.
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DHCP
The Statistics / DHCP page displays the information on devices that have been identified by hostnames and MAC addresses and have got IP addresses from the DHCP server of the router.

Figure 59. The Statistics / DHCP page.

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Routing
The Statistics / Routing page displays the routing rules and routing tables.

Figure 60. The Statistics / Routing page.
The Rules section displays routing rules, their corresponding routing tables, incoming and outgoing interfaces, priority levels, and other data. The Tables section displays the list of routing tables stored in the device’s memory. To view detailed information on routes, left-click the relevant line in the table.
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Figure 61. The routing table page.
The opened page displays the information on routes in the selected routing table. The table contains destination IP addresses, gateways, subnet masks, and other data.

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Clients and Sessions
On the Statistics / Clients and Sessions page, you can view the list of devices connected to the local network of the router and information on current sessions of each device.

Figure 62. The Statistics / Clients and Sessions page.
For each device the following data are displayed: the IP address, the MAC address, and the network interface to which the device is connected.
To view the information on current sessions of a device, select this device in the table. On the opened page, the following data for each session of the selected device will be displayed: the protocol for network packet transmission, the source IP address and port, and the destination IP address and port.

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Port Statistics
On the Statistics / Port Statistics page, you can view statistics for traffic passing through ports of the router. The information shown on the page can be used for diagnosing connection problems.

Figure 63. The Statistics / Port Statistics page.
To view the full list of counters for a port, click the line corresponding to this port.

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Multicast Groups
The Statistics / Multicast Groups page displays addresses of active multicast groups (including IPTV channels and groups for transferring service information) to which the device is subscribed, and the interface through which the device is subscribed.

Figure 64. The Statistics / Multicast Groups page.

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IPsec Statistics
On the Statistics / IPsec Statistics page, you can view statistics for IPsec tunnels of the router. For each tunnel the following data are displayed: name and state (when the connection is on, its name is highlighted in green, when the connection is off, its name is highlighted in red), remote host address or domain name, operation mode and connection type, and number of packets and volume of data received and transmitted.

Figure 65. The Statistics / IPsec Statistics page.
To view detailed data on a tunnel, click the line corresponding to this tunnel.

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Connections Setup
In this menu you can configure basic parameters of the router’s local area network and configure connection to the Internet (a WAN connection).
WAN
On the Connections Setup / WAN page, you can create and edit connections used by the router. By default, a Dynamic IPv4 connection is configured in the system. It is assigned to the INTERNET port of the router.

Figure 66. The Connections Setup / WAN page. The simplified mode.
To edit an existing connection, click the EDIT button. On the opened page, change the needed parameters and click the APPLY button. To disconnect a connection and establish it again, click the RECONNECT button. To remove an existing connection and create a new one, click the CHANGE CONFIGURATION button. Upon that the connection creation page opens. To create several WAN connections, go to the advanced mode. To do this, click the ADVANCED MODE button.
! When connections of some types are created, the Connections Setup / WAN page is automatically displayed in the advanced mode.
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Figure 67. The Connections Setup / WAN page. The advanced mode.
To create a new connection, click the ADD button ( ) in the Connections List section. Upon that the connection creation page opens. To edit an existing connection, in the Connections List section, left-click the relevant line in the table. On the opened page, change the needed parameters and click the APPLY button. To disconnect a connection and establish it again, select the checkbox located to the left of the relevant line in the table and click the RECONNECT button. To remove a connection, in the Connections List section, select the checkbox located to the left of the relevant line in the table and click the DELETE button ( ). To allow multicast traffic (e.g. streaming video) for a connection, click the IGMP/MLD link (for the description of the page, see the IGMP/MLD section, page 179). To use one of existing WAN connections as the default IPv4 or IPv6 connection, in the Default Gateway section, select the choice of the radio button which corresponds to this connection. To return to the simplified mode, click the SIMPLIFIED MODE button (the button is unavailable if several WAN connections are created).
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Creating Dynamic IPv4 or Static IPv4 WAN Connection
On the connection creation page, in the General Settings section, select the relevant value from the Connection type drop-down list and specify the needed values.

Figure 68. The page for creating a new Static IPv4 connection. The General Settings section.

Parameter

Description

General Settings

Interface

A physical or virtual WAN interface to which the new connection will be assigned.

Connection name A name for the connection for easier identification.

Enable connection

Move the switch to the right to enable the connection. Move the switch to the left to disable the connection.

NAT

If the switch is moved to the right, the network address translation function for IPv4 is enabled. Do not disable the function unless your ISP requires this.

Ping

If the switch is moved to the right, the router responds to ping requests from the external network through this connection. For security reasons, it is recommended to disable this function.

RIP

Move the switch to the right to allow using RIP for this connection.

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Figure 69. The page for creating a new Static IPv4 connection. The Ethernet section.

Parameter

Description

Ethernet

MAC address

A MAC address assigned to the interface. This parameter is mandatory if your ISP uses MAC address binding. In the field, enter the MAC address registered by your ISP upon concluding the agreement.
To set the MAC address of the network interface card (of the computer that is being used to configure the router at the moment) as the MAC address of the WAN interface, move the Clone MAC address of your NIC switch to the right. When the switch is moved to the right, the field is unavailable for editing.
To set the router’s MAC address, click the RESTORE DEFAULT MAC ADDRESS button (the button is available when the switch is moved to the right).

MTU

The maximum size of units transmitted by the interface.

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Figure 70. The page for creating a new Static IPv4 connection. The IPv4 section.

Parameter

Description

IPv4

IP address

For Static IPv4 type Enter an IP address for this WAN connection.

Subnet mask

Enter a subnet mask for this WAN connection.

Gateway IP address Enter an IP address of the gateway used by this WAN connection.

Primary DNS / Secondary DNS

Enter addresses of the primary and secondary DNS servers in the relevant fields.

For Dynamic IPv4 type

Obtain DNS server addresses
automatically

Move the switch to the right to configure automatic assignment of DNS server addresses. Upon that the Primary DNS and Secondary DNS fields are not available for editing.

Primary DNS / Secondary DNS

Enter addresses of the primary and secondary DNS servers in the relevant fields.

Vendor ID

The identifier of your ISP. Optional.

Hostname

A name of the router specified by your ISP. Optional.

When all needed settings are configured, click the APPLY button.

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Creating Dynamic IPv6 or Static IPv6 WAN Connection
On the connection creation page, in the General Settings section, select the relevant value from the Connection type drop-down list and specify the needed values.

Figure 71. The page for creating a new Static IPv6 connection. The General Settings section.

Parameter

Description

General Settings

Interface

A physical or virtual WAN interface to which the new connection will be assigned.

Connection name A name for the connection for easier identification.

Enable connection

Move the switch to the right to enable the connection. Move the switch to the left to disable the connection.

NATv6

If the switch is moved to the right, the network address translation function for IPv6 is enabled. Do not disable the function unless your ISP requires this.

Ping

If the switch is moved to the right, the router responds to ping requests from the external network through this connection. For security reasons, it is recommended to disable this function.

RIPng

Move the switch to the right to allow using RIPng for this connection.

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Figure 72. The page for creating a new Static IPv6 connection. The Ethernet section.

Parameter

Description

Ethernet

MAC address

A MAC address assigned to the interface. This parameter is mandatory if your ISP uses MAC address binding. In the field, enter the MAC address registered by your ISP upon concluding the agreement.
To set the MAC address of the network interface card (of the computer that is being used to configure the router at the moment) as the MAC address of the WAN interface, move the Clone MAC address of your NIC switch to the right. When the switch is moved to the right, the field is unavailable for editing.
To set the router’s MAC address, click the RESTORE DEFAULT MAC ADDRESS button (the button is available when the switch is moved to the right).

MTU

The maximum size of units transmitted by the interface.

Figure 73. The page for creating a new Static IPv6 connection. The IPv6 section. Page 88 of 254

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Parameter

Description

IPv6

For Static IPv6 type

IPv6 address

Enter an IPv6 address for this WAN connection.

Prefix

The length of the subnet prefix. The value 64 is used usually.

Gateway IPv6 address Enter an IPv6 address of the gateway used by this WAN connection.

Primary IPv6 DNS server / Secondary IPv6
DNS server

Enter addresses of the primary and secondary IPv6 DNS servers in the relevant fields.

For Dynamic IPv6 type

Get IPv6

Select a method for IPv6 address assignment from the drop-down list or leave the Automatically value.

Enable prefix delegation

From the drop-down list, select the mode of a prefix request from a delegating DHCPv6 server to configure a range of IPv6 addresses for the local network.
· None: The mode without prefix request.
· Auto: The mode with the ability to request a prefix. When this value is selected, the router requests a prefix from a DHCPv6 server. Upon that obtaining a prefix is not mandatory to establish the connection.
· Force: The mode with forced prefix request. When this value is selected, the router requests a prefix from a DHCPv6 server. Upon that obtaining a prefix is mandatory to establish the connection.

Obtain DNS server addresses
automatically

Move the switch to the right to configure automatic assignment of IPv6 DNS server addresses. Upon that the Primary IPv6 DNS server and Secondary IPv6 DNS server fields are not available for editing.

Primary IPv6 DNS server / Secondary IPv6
DNS server

Enter addresses of the primary and secondary IPv6 DNS servers in the relevant fields.

When all needed settings are configured, click the APPLY button.

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Creating PPPoE WAN Connection
On the connection creation page, in the General Settings section, select the relevant value from the Connection type drop-down list and specify the needed values.

Figure 74. The page for creating a new PPPoE connection. The General Settings section.

Parameter

Description

General Settings

Interface

A physical or virtual WAN interface to which the new connection will be assigned.

Connection name A name for the connection for easier identification.

Enable connection

Move the switch to the right to enable the connection. Move the switch to the left to disable the connection.

NAT

If the switch is moved to the right, the network address translation function for IPv4 is enabled. Do not disable the function unless your ISP requires this.

Ping

If the switch is moved to the right, the router responds to ping requests from the external network through this connection. For security reasons, it is recommended to disable this function.

RIP

Move the switch to the right to allow using RIP for this connection.

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Figure 75. The page for creating a new PPPoE connection. The Ethernet section.

Parameter

Description

Ethernet

MAC address

A MAC address assigned to the interface. This parameter is mandatory if your ISP uses MAC address binding. In the field, enter the MAC address registered by your ISP upon concluding the agreement.
To set the MAC address of the network interface card (of the computer that is being used to configure the router at the moment) as the MAC address of the WAN interface, move the Clone MAC address of your NIC switch to the right. When the switch is moved to the right, the field is unavailable for editing.
To set the router’s MAC address, click the RESTORE DEFAULT MAC ADDRESS button (the button is available when the switch is moved to the right).

MTU

The maximum size of units transmitted by the interface.

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Figure 76. The page for creating a new PPPoE connection. The PPP section.

Parameter

Description

PPP

Without authorization

Move the switch to the right if you don’t need to enter a username and password to access the Internet.

Username

A username (login) to access the Internet.

Password

A password to access the Internet. Click the Show icon ( ) to display the entered password.

Service name

The name of the PPPoE authentication server.

MTU

The maximum size of units transmitted by the interface.

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Parameter
Encryption protocol
Authentication protocol
Keep Alive
Dial on demand Static IP address
PPP debug

Description
Select a method of MPPE encryption.
· No encryption: MPPE encryption is not applied.
· MPPE 40 128 bit: MPPE encryption with a 40-bit or 128-bit key is applied.
· MPPE 40 bit: MPPE encryption with a 40-bit key is applied.
· MPPE 128 bit: MPPE encryption with a 128-bit key is applied.
MPPE encryption can be applied only if the MS-CHAP, MSCHAPv2, or AUTO value is selected from the Authentication protocol drop-down list.
Select a required authentication method from the drop-down list or leave the AUTO value.
If the switch is moved to the right, the router sends echo requests in order to check the connection state. After several consecutive unanswered requests the router restarts the PPP connection. If needed, change the interval (in seconds) between requests and the number of unanswered requests in the LCP interval and LCP failures fields correspondingly or leave the default values.
Move the switch to the right if you want the router to establish connection to the Internet on demand. In the Maximum idle time field, specify a period of inactivity (in seconds) after which the connection should be terminated.
Fill in the field if you want to use a static IP address to access the Internet.
Move the switch to the right if you want to log all data on this PPP connection debugging. Upon that the Debugging messages value should be selected from the Level drop-down list on the System / Log page (see the Log section, page 232).

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Figure 77. The page for creating a new PPPoE connection. The IPv4 section.

Parameter

Description

Obtain DNS server addresses
automatically

Move the switch to the right to configure automatic assignment of DNS server addresses. Upon that the Primary DNS and Secondary DNS fields are not available for editing.

Primary DNS / Secondary DNS

Enter addresses of the primary and secondary DNS servers in the relevant fields.

When all needed settings are configured, click the APPLY button. In the simplified mode, after clicking the button, the window for creating an additional connection opens.

If your ISP offers access to local services (e.g. audio and video resources), click the CREATE CONNECTION button. On the page displayed, specify the parameters for the connection of the Dynamic IPv4 or Static IPv4 type and click the APPLY button.

If you do not need to create an additional connection, click the SKIP button. In this case, the Connections Setup / WAN page opens.

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Creating PPTP, L2TP, or L2TP over IPsec WAN Connection
On the connection creation page, in the General Settings section, select the relevant value from the Connection type drop-down list and specify the needed values.

Figure 78. The page for creating a new PPTP connection. The General Settings section.

Parameter

Description

General Settings

Connection name A name for the connection for easier identification.

Enable connection

Move the switch to the right to enable the connection. Move the switch to the left to disable the connection.

NAT

If the switch is moved to the right, the network address translation function for IPv4 is enabled. Do not disable the function unless your ISP requires this.

Ping

For the PPTP and L2TP types only.
If the switch is moved to the right, the router responds to ping requests from the external network through this connection. For security reasons, it is recommended to disable this function.

For the PPTP and L2TP types only. RIP
Move the switch to the right to allow using RIP for this connection.

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Figure 79. The page for creating a new PPTP connection. The PPP section.

Parameter

Description

PPP

Without authorization

Move the switch to the right if you don’t need to enter a username and password to access the Internet.

Username

A username (login) to access the Internet.

Password

A password to access the Internet. Click the Show icon ( ) to display the entered password.

VPN server address

The IP address or full domain name of the PPTP or L2TP authentication server.

MTU

The maximum size of units transmitted by the interface.

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Parameter

Description

Encryption protocol

Select a method of MPPE encryption.
· No encryption: MPPE encryption is not applied.
· MPPE 40 128 bit: MPPE encryption with a 40-bit or 128bit key is applied.
· MPPE 40 bit: MPPE encryption with a 40-bit key is applied.
· MPPE 128 bit: MPPE encryption with a 128-bit key is applied.
MPPE encryption can be applied only if the MS-CHAP, MSCHAPv2, or AUTO value is selected from the Authentication protocol drop-down list.

Authentication protocol

Select a required authentication method from the drop-down list or leave the AUTO value.

Keep Alive

If the switch is moved to the right, the router sends echo requests in order to check the connection state. After several consecutive unanswered requests the router restarts the PPP connection. If needed, change the interval (in seconds) between requests and the number of unanswered requests in the LCP interval and LCP failures fields correspondingly or leave the default values.

Dial on demand

Move the switch to the right if you want the router to establish connection to the Internet on demand. In the Maximum idle time field, specify a period of inactivity (in seconds) after which the connection should be terminated.

Static IP address

Fill in the field if you want to use a static IP address to access the Internet.

PPP debug

Move the switch to the right if you want to log all data on this PPP connection debugging. Upon that the Debugging messages value should be selected from the Level drop-down list on the System / Log page (see the Log section, page 232).

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Figure 80. The page for creating a new PPTP connection. The IPv4 section.

Parameter

Description

Obtain DNS server addresses
automatically

Move the switch to the right to configure automatic assignment of DNS server addresses. Upon that the Primary DNS and Secondary DNS fields are not available for editing.

Primary DNS / Secondary DNS

Enter addresses of the primary and secondary DNS servers in the relevant fields.

Figure 81. The page for creating a new L2TP over IPsec connection. The IPsec section.
! Setting for both parties which establish the tunnel should be the same.
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Parameter Pre-shared key
Enable PFS
DPD action

Description
IPsec (for the L2TP over IPsec type)
A key for mutual authentication of the parties. Click the Show icon ( ) to display the entered key.
Move the switch to the right to enable the PFS option (Perfect Forward Secrecy). If the switch is moved to the right, a new encryption key exchange will be used upon establishing the IPsec tunnel. This option enhances the security level of data transfer, but increases the load on DIR-842.
Using DPD protocol (Dead Peer Detection) allows to check the status of the remote host in the tunnel: if encrypted packets exchange between the router and the remote host breaks down, the router starts sending DPD requests to the remote host. Select the needed action from the drop-down list.
· Restart: Restart the tunnel connection immediately.
· Hold: Reestablish the connection upon request when the traffic matching the tunnel appears.
· Clear: Close the tunnel connection with no further action.
· Off: Disable DPD. When this value is selected, the DPD delay and DPD timeout fields are not available for editing.

DPD delay

A time period (in seconds) between DPD messages. By default, the value 30 is specified.

DPD timeout

A waiting period for the response to a DPD message (in seconds). If the host does not answer in the specified time, the router breaks down the tunnel connection, updates information on it, and tries to reestablish the connection. By default, the value 120 is specified.

Specify connection port

Move the switch to the right to change the port used for data exchange with the other party enter the needed value in the Port field displayed. By default, the value 1701 is specified.

When all needed settings are configured, click the APPLY button. After clicking the button, the window for additional configuration of the connection opens.

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If you want to use this WAN connection to access the Internet, select the to the Internet choice of the radio button. Then select an existing connection which will be used to access the PPTP/L2TP server and click the CONTINUE button; or select the create a new connection choice of the radio button and click the CREATE CONNECTION button.
If you have already configured the connection to the Internet and you want to use this WAN connection only to connect to the virtual private network, select the to the virtual private network choice of the radio button and click the CONTINUE button.
After creating a connection of the L2TP over IPsec type, on the Advanced / IPsec page, in the Status section, and on the IPsec Statistics page the current state of the IPsec tunnel is displayed.

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Creating PPPoE IPv6 or PPPoE Dual Stack WAN Connection
On the connection creation page, in the General Settings section, select the relevant value from the Connection type drop-down list and specify the needed values.

Figure 82. The page for creating a new PPPoE IPv6 connection. The General Settings section.

Parameter

Description

General Settings

Interface

A physical or virtual WAN interface to which the new connection will be assigned.

Connection name A name for the connection for easier identification.

Enable connection

Move the switch to the right to enable the connection. Move the switch to the left to disable the connection.

NAT

For the PPPoE Dual Stack type only.
If the switch is moved to the right, the network address translation function for IPv4 is enabled. Do not disable the function unless your ISP requires this.

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Parameter NATv6 Ping RIP RIPng

Description
If the switch is moved to the right, the network address translation function for IPv6 is enabled. Do not disable the function unless your ISP requires this.
If the switch is moved to the right, the router responds to ping requests from the external network through this connection. For security reasons, it is recommended to disable this function.
For the PPPoE Dual Stack type only. Move the switch to the right to allow using RIP for this connection.
Move the switch to the right to allow using RIPng for this connection.

Figure 83. The page for creating a new PPPoE IPv6 connection. The Ethernet section.

Parameter

Description

Ethernet

MAC address

A MAC address assigned to the interface. This parameter is mandatory if your ISP uses MAC address binding. In the field, enter the MAC address registered by your ISP upon concluding the agreement.
To set the MAC address of the network interface card (of the computer that is being used to configure the router at the moment) as the MAC address of the WAN interface, move the Clone MAC address of your NIC switch to the right. When the switch is moved to the right, the field is unavailable for editing.
To set the router’s MAC address, click the RESTORE DEFAULT MAC ADDRESS button (the button is available when the switch is moved to the right).

MTU

The maximum size of units transmitted by the interface.

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Figure 84. The page for creating a new PPPoE IPv6 connection. The PPP section.

Parameter

Description

PPP

Without authorization

Move the switch to the right if you don’t need to enter a username and password to access the Internet.

Username

A username (login) to access the Internet.

Password

A password to access the Internet. Click the Show icon ( ) to display the entered password.

Service name

The name of the PPPoE authentication server.

MTU

The maximum size of units transmitted by the interface.

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Parameter
Encryption protocol
Authentication protocol
Keep Alive Static IP address
PPP debug

Description
Select a method of MPPE encryption.
· No encryption: MPPE encryption is not applied.
· MPPE 40 128 bit: MPPE encryption with a 40-bit or 128-bit key is applied.
· MPPE 40 bit: MPPE encryption with a 40-bit key is applied.
· MPPE 128 bit: MPPE encryption with a 128-bit key is applied.
MPPE encryption can be applied only if the MS-CHAP, MSCHAPv2, or AUTO value is selected from the Authentication protocol drop-down list.
Select a required authentication method from the drop-down list or leave the AUTO value.
If the switch is moved to the right, the router sends echo requests in order to check the connection state. After several consecutive unanswered requests the router restarts the PPP connection. If needed, change the interval (in seconds) between requests and the number of unanswered requests in the LCP interval and LCP failures fields correspondingly or leave the default values.
Fill in the field if you want to use a static IP address to access the Internet.
Move the switch to the right if you want to log all data on this PPP connection debugging. Upon that the Debugging messages value should be selected from the Level drop-down list on the System / Log page (see the Log section, page 232).

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Figure 85. The page for creating a new PPPoE Dual Stack connection. The IPv4 section.

Parameter

Description

IPv4 (for the PPPoE Dual Stack type)

Obtain DNS server addresses
automatically

Move the switch to the right to configure automatic assignment of DNS server addresses. Upon that the Primary DNS and Secondary DNS fields are not available for editing.

Primary DNS / Secondary DNS

Enter addresses of the primary and secondary DNS servers in the relevant fields.

Figure 86. The page for creating a new PPPoE Pv6 connection. The IPv6 section.

Parameter

Description

IPv6

Get IPv6

Select a method for IPv6 address assignment from the drop-down list or leave the Automatically value.

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Parameter

Description

Enable prefix delegation

From the drop-down list, select the mode of a prefix request from a delegating DHCPv6 server to configure a range of IPv6 addresses for the local network.
· None: The mode without prefix request.
· Auto: The mode with the ability to request a prefix. When this value is selected, the router requests a prefix from a DHCPv6 server. Upon that obtaining a prefix is not mandatory to establish the connection.
· Force: The mode with forced prefix request. When this value is selected, the router requests a prefix from a DHCPv6 server. Upon that obtaining a prefix is mandatory to establish the connection.

Obtain DNS server addresses
automatically

Move the switch to the right to configure automatic assignment of IPv6 DNS server addresses. Upon that the Primary IPv6 DNS server and Secondary IPv6 DNS server fields are not available for editing.

Primary IPv6 DNS server / Secondary
IPv6 DNS server

Enter addresses of the primary and secondary IPv6 DNS servers in the relevant fields.

When all needed settings are configured, click the APPLY button.

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LAN
To configure the router’s local interface, go to the Connections Setup / LAN page.
IPv4 Go to the IPv4 tab to change the IPv4 address of the router, configure the built-in DHCP server, specify MAC address and IPv4 address pairs, or add own DNS records.

Figure 87. Configuring the local interface. The IPv4 tab. The Local IP Address section.

Parameter

Description

Local IP Address

Mode of local IP address assignment
IP address Mask

Available if the Access point, Repeater, or Client mode was selected in the Initial Configuration Wizard.
Select the needed value from the drop-down list.
· Static: The IPv4 address, subnet mask, and the gateway IP address are assigned manually.
· Dynamic: The router automatically obtains these parameters from the LAN DHCP server or from the router to which it connects. When this value is selected, the controls of the Dynamic IP Addresses section are not available. Also when this value is selected, the Obtain DNS server addresses automatically switch is displayed on the tab.
The IPv4 address of the router in the local subnet. By default, the following value is specified: 192.168.0.1.
The mask of the local subnet. By default, the following value is specified: 255.255.255.0.

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Parameter Gateway IP address
Hostname Obtain DNS server
addresses automatically
DNS IP address

Description
Available if the Access point, Repeater, or Client mode was selected in the Initial Configuration Wizard.
The gateway IPv4 address which is used by the router to connect to the Internet (e.g., for synchronizing the system time with an NTP server). Optional.
The name of the device assigned to its IPv4 address in the local subnet.
Available if the Access point, Repeater, or Client mode was selected in the Initial Configuration Wizard.
Move the switch to the right to configure automatic assignment of DNS server IPv4 addresses. Upon that the DNS IP address field is not available for editing.
Available if the Access point, Repeater, or Client mode was selected in the Initial Configuration Wizard.
If needed, specify a DNS server IPv4 address for the selected mode of local IP address assignment.
If you want to specify several DNS servers, click the ADD button, and in the line displayed, enter the IPv4 address.
To remove the address, click the DELETE button ( ) in the line of the address.
The DNS servers specified on this page will have higher priority than the servers specified on the Advanced / DNS page.

Figure 88. Configuring the local interface. The IPv4 tab. The Dynamic IP Addresses section. Page 108 of 254

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Parameter

Description

Dynamic IP Addresses

Mode of IPv4 address assignment
Start IP End IP SELECT ADDRESS RANGE Lease time
DNS relay

An operating mode of the router’s DHCP server.
· Disable: The router’s DHCP server is disabled, clients’ IP addresses are assigned manually.
· DHCP: The router assigns IP addresses to clients automatically in accordance with the specified parameters. When this value is selected, the Start IP, End IP, Lease time fields, the SELECT ADDRESS RANGE button, and the DNS relay switch are displayed on the tab. Also when this value is selected, the DHCP Options, Static IP Addresses, and Hosts sections are displayed on the tab.
· Relay: An external DHCP server is used to assign IP addresses to clients. When this value is selected, the External DHCP server IP, Option 82 Circuit ID, Option 82 Remote ID, and Option 82 Subscriber ID fields are displayed on the tab. Available if the Router or WISP Repeater mode was selected in the Initial Configuration Wizard.
The start IP address of the address range used by the DHCP server to distribute IP addresses to clients.
The end IP address of the address range used by the DHCP server to distribute IP addresses to clients.
Use the button to set one of the available IP address ranges. In the window displayed, select the needed range and click the SAVE button to automatically fill in the Start IP and End IP fields.
The lifetime of IP addresses leased by the DHCP server. At the end of this period the leased IP address is revoked and can be distributed to another device, unless the previous device has confirmed the need to keep the address.
Move the switch to the right so that the devices connected to the router obtain the address of the router as the DNS server address.
Move the switch to the left so that the devices connected to the router obtain the address transmitted by the ISP or specified on the Advanced / DNS page as the DNS server address.

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Parameter

Description

The IPv4 address of the external DHCP server which assigns IPv4 addresses to the router’s clients.
To specify several IPv4 addresses, click the ADD button, and in the External DHCP server IP line displayed, enter an IPv4 address.

To remove the IPv4 address, click the DELETE button ( ) in the line of the address.
Option 82 Circuit ID The value of the relevant field of DHCP option 82. Do not fill in the Option 82 Remote ID fields unless your ISP or the administrator of the external DHCP Option 82 Subscriber ID server provided these values.
When all needed settings are configured, click the APPLY button.
In the DHCP Options section, you can change default values for some options of DHCP protocol (IP address, subnet mask, DNS servers) or specify additional parameters which the built-in DHCP server should send to clients to configure the local network.

Figure 89. Configuring the local interface. The IPv4 tab. The section for configuring DHCP options.
To do this, click the ADD button ( ).

Figure 90. Configuring the local interface. The IPv4 tab. The window for configuring a DHCP option.

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In the opened window, you can specify the following parameters:

Parameter

Description

Supported DHCP options

From the drop-down list, select an option which you want to configure.

Options value

Specify the value for the selected option.

Force

Move the switch to the right to let the DHCP server send the selected option regardless of the client’s request.
Move the switch to the left to let the DHCP server send the selected option only when the client requests it.

After specifying the needed parameters, click the SAVE button.

To edit the parameters of an option, left-click the relevant line in the table. In the opened window, change the needed parameters and click the SAVE button.

To remove the value of an option, select the checkbox located to the left of the relevant line in the

table and click the DELETE button ( ). Then click the APPLY button.

In the Static IP Addresses section, you can specify MAC address and IPv4 address pairs (set a fixed IPv4 address in the local area network for a device with a certain MAC address). The router assigns IPv4 addresses in accordance with the specified pairs only when the DHCP server is enabled (in the Dynamic IP Addresses section, the DHCP value is selected from the Mode of IPv4 address assignment drop-down list).

Figure 91. Configuring the local interface. The IPv4 tab. The section for creating MAC-IPv4 pairs.
To create a MAC-IPv4 pair, click the ADD button ( ). In the opened window, fill in the MAC address field. You can choose a device connected to the router’s LAN at the moment. To do this, select the relevant MAC address from the drop-down list (the field will be filled in automatically). Then in the IP address field, enter an IPv4 address which will be assigned to the device with the specified MAC address. In the Hostname field, specify a network name of the device for easier identification. To limit the time of the specified IPv4 address assignment, specify the required value in the Lease time field. Click the SAVE button.
To edit the settings for an existing MAC-IPv4 pair, left-click the relevant line in the table. In the opened window, change the needed parameters and click the SAVE button.
To remove a MAC-IPv4 pair, select the checkbox located to the left of the relevant line in the table
and click the DELETE button ( ). Then click the APPLY button.

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If needed, you can add your own address resource records. To do this, click the ADD button ( ) in the Hosts section (available if in the Dynamic IP Addresses section the DHCP value is selected from the Mode of IPv4 address assignment drop-down list).

Figure 92. Configuring the local interface. The IPv4 tab. The window for adding a DNS record.
In the Name field, specify the hostname or full domain name to which the specified IPv4 address will correspond. In the IP address field, specify a host from the internal or external network. You can choose a device connected to the router’s LAN at the moment. To do this, select the relevant IPv4 address from the drop-down list (the field will be filled in automatically). To specify several IP addresses, click the ADD button. Click the SAVE button.
To edit an existing record, in the Hosts section, select the relevant line in the table. In the opened window, change the needed parameters and click the SAVE button.
To remove a record, in the Hosts section, select the checkbox located to the left of the relevant line
in the table and click the DELETE button ( ).
After completing the work with records, click the APPLY button.

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IPv6
Go to the IPv6 tab to change or add the IPv6 address of the router, configure IPv6 addresses assignment settings, specify MAC address and IPv6 address pairs, or add own DNS records.

Figure 93. Configuring the local interface. The IPv6 tab. The Local IPv6 Address section.
To add an IPv6 address of the router, click the ADD button. In the line displayed, enter an IPv6 address and then a slash followed by a decimal value of the prefix length. To change an IPv6 address of the router, edit the corresponding line.

To remove an IPv6 address, click the DELETE ( Then click the APPLY button.
Also you can specify the following parameters:

) button in the corresponding line of the table.

Parameter

Description

Local IPv6 Address

Gateway IPv6 address

Available if the Access point, Repeater, or Client mode was selected in the Initial Configuration Wizard.
The gateway IPv6 address which is used by the router to connect to the Internet (e.g., for synchronizing the system time with an NTP server). Optional.

Hostname

The name of the device assigned to its IPv6 address in the local subnet.

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Parameter

Description

DNS IP address

Available if the Access point, Repeater, or Client mode was selected in the Initial Configuration Wizard.
If needed, specify a DNS server IPv6 address.
If you want to specify several DNS servers, click the ADD button, and in the line displayed, enter the IPv6 address.

To remove the address, click the DELETE button ( ) in the line of the address.
The DNS servers specified on this page will have higher priority than the servers specified on the Advanced / DNS page.
In the Dynamic IP Addresses section, you can configure IPv6 addresses assignment settings.

Figure 94. Configuring the local interface. The IPv6 tab. The Dynamic IP Addresses section. Page 114 of 254

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Parameter

Description

Dynamic IP Addresses

Mode of IPv6 address assignment
Start IP / End IP SELECT ADDRESS
RANGE

Select the needed value from the drop-down list.
· Disable: Clients’ IPv6 addresses are assigned manually.
· Stateless: Clients themselves configure IPv6 addresses using the prefix.
· Stateful: The built-in DHCPv6 server of the router allocates addresses from the range specified in the Start IP and End IP fields. Also when this value is selected, the Static IP Addresses and Hosts sections are displayed on the tab.
· Relay: An external DHCP server is used to assign IPv6 addresses to clients. When this value is selected, the External DHCP server IP field is displayed on the tab. Available if the Router or WISP Repeater mode was selected in the Initial Configuration Wizard.
The start and the end values for the latest hextet (16 bit) of the range of IPv6 addresses which the DHCPv6 server distributes to clients.
Use the button to set one of the available IP address ranges. In the window displayed, select the needed range and click the SAVE button to automatically fill in the Start IP and End IP fields.

Lease time

The lifetime of IPv6 addresses provided to clients.

The default route for LAN clients
DNS relay
External DHCP server IP

Move the switch to the right to let the clients, that received IPv6 addresses or configured them using the prefix, use the router as the default IPv6 route.
Move the switch to the right so that the devices connected to the router obtain the address of the router as the DNS server address.
Move the switch to the left so that the devices connected to the router obtain the address transmitted by the ISP or specified on the Advanced / DNS page as the DNS server address.
The IPv6 address of the external DHCP server which assigns IPv6 addresses to the router’s clients.
To specify several IPv6 addresses, click the ADD button, and in the line displayed, enter an IPv6 address.

To remove the IPv6 address, click the DELETE button ( line of the address.
When all needed settings are configured, click the APPLY button.

) in the

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In the Static IP Addresses section, you can specify MAC address and IPv6 address pairs (set a fixed IPv6 address in the local area network for a device with a certain MAC address). The router assigns IPv6 addresses in accordance with the specified pairs only when the Stateful value is selected from the Mode of IPv6 address assignment drop-down list in the Dynamic IP Addresses section.

Figure 95. Configuring the local interface. The IPv6 tab. The section for creating MAC-IPv6 pairs.
To create a MAC-IPv6 pair, click the ADD button ( ). In the opened window, fill in the MAC address field. You can choose a device connected to the router’s LAN at the moment. To do this, select the relevant MAC address from the drop-down list (the field will be filled in automatically). Then in the IP address field, enter an IPv6 address which will be assigned to the device with the specified MAC address. In the Hostname field, specify a network name of the device for easier identification. To limit the time of the specified IPv6 address assignment, specify the required value in the Lease time field. Click the SAVE button.
To edit the settings for an existing MAC-IPv6 pair, left-click the relevant line in the table. In the opened window, change the needed parameters and click the SAVE button.
To remove a MAC-IPv6 pair, select the checkbox located to the left of the relevant line in the table
and click the DELETE button ( ). Then click the APPLY button.
If needed, you can add your own address resource records. To do this, click the ADD button ( ) in the Hosts section (available if in the Dynamic IP Addresses section the Stateful value is selected from the Mode of IPv6 address assignment drop-down list).

Figure 96. Configuring the local interface. The IPv6 tab. The window for adding a DNS record.
In the Name field, specify the hostname or full domain name to which the specified IPv6 address will correspond. In the IP address field, specify a host from the internal or external network. You can choose a device connected to the router’s LAN at the moment. To do this, select the relevant IPv6 address from the drop-down list (the field will be filled in automatically). To specify several IP addresses, click the ADD button. Click the SAVE button.
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To edit an existing record, in the Hosts section, select the relevant line in the table. In the opened window, change the needed parameters and click the SAVE button. To remove a record, in the Hosts section, select the checkbox located to the left of the relevant line in the table and click the DELETE button ( ). After completing the work with records, click the APPLY button.

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WAN Failover
On the Connections Setup / WAN Failover page, you can enable the WAN backup function, which provides you with uninterrupted access to the Internet. When your main connection breaks down, the router activates the backup connection; and when the main channel is recovered, the router switches to it and disconnects the reserve one.

Figure 97. The Connections Setup / WAN Failover page.
To activate the backup function, create several WAN connections. After that go to the Connections Setup / WAN Failover page, move the Enable switch to the right.
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In the Connections IPv4 section, the existing IPv4 connections are displayed in order of their priority. The first connection on the list serves as the main connection, the others are backup connections.
To change the priority of a connection, left-click the relevant line in the table.

Figure 98. The window for changing the priority of a connection.
In the opened window, specify the needed parameters.

Parameter

Description

Check with ping

Move the switch to the right to let the router use ICMP ping mechanism for checking the connection.
Move the switch to the left to let the router check only the status of the connection (may be useful for unstable connections).

Priority

The priority level of the connection. Level 1 is for the main connection, the others are backup connections. Select the required value from the drop-down list.

After specifying the needed parameters, click the SAVE button.

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In the Check with ping section, specify settings of checking the connection using ICMP ping mechanism.

Parameter

Description

Check with ping

A time period (in seconds) between regular checks of the hosts’ availability. By default, the value 30 is specified. The value of this field should be higher than product of Waiting for response and Number of ping requests fields values. Interval between checks After a successful check the router keeps using the main connection. If the check fails, the router repeats it. After two failed checks the next operational connection from the list will be used as the default connection.

Waiting for response

A time period (in seconds) allocated for a response to one ping request.

Number of ping requests

The number of ping requests sent for each check.
A check is considered failed in case none of the sent ping requests receive a response.

External IP addresses that the router will check for availability via ICMP ping mechanism.

Hosts

Click the ADD HOST button, and in the line displayed, enter an IP address or leave values suggested by the router.

To remove an IP address from the list, click the Delete icon ( ) in the line of the address.

When all needed settings are configured, click the APPLY button.

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Wi-Fi
In this menu you can specify all needed settings for your wireless network.
Basic Settings
In the Wi-Fi / Basic Settings section, you can change basic parameters for the wireless interface of the router and configure the basic and additional wireless networks. To configure the 2.4GHz band or 5GHz band, go to the relevant tab. To configure the wireless network in which the wireless client automatically chooses the preferred band when it is connecting or when the network conditions change, use the Band Steering technology.

Figure 99. Basic settings of the wireless LAN in the 2.4GHz band. Page 121 of 254

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In the Basic Settings section, the following parameters are available:

Parameter

Description

Enable Wireless

To enable Wi-Fi connection, move the switch to the right.
To disable Wi-Fi connection, move the switch to the left.
To enable/disable Wi-Fi connection on a schedule, click the Set
schedule icon ( ). In the opened window, from the Rule dropdown list, select the Create rule value to create a new schedule (see the Schedule section, page 227) or select the Select an existing one value to use the existing one. Existing schedules are displayed in the Rule name drop-down list.
To enable Wi-Fi connection at the time specified in the schedule and disable it at the other time, select the Enable wireless connection value from the Action drop-down list and click the SAVE button.
To disable Wi-Fi connection at the time specified in the schedule and enable it at the other time, select the Disable wireless connection value from the Action drop-down list and click the SAVE button.
To change or delete the schedule, click the Edit schedule icon ( ). In the opened window, change the parameters and click the SAVE button or click the DELETE FROM SCHEDULE button.

Country

The country you are in. Select a value from the drop-down list.

Wireless mode

Operating mode of the wireless network of the router. This parameter defines standards of the devices that will be able to use your wireless network. Select a value from the drop-down list.

Select channel automatically
Enable additional channels

Move the switch to the right to let the router itself choose the channel with the least interference.
If the switch is moved to the left, the device automatically selects one of available standard channels. To use additional channels (the 12th and 13th ­ in the 2.4 GHz band, the 100th and higher ­ in the 5 GHz band), move the switch to the right.

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Parameter

Description

Channel

The wireless channel number.
To select a channel manually, left-click; in the opened window, select a channel and click the SAVE button. The action is available, when the Select channel automatically switch is moved to the left.
To make the router select the currently least loaded channel, click

the Refresh icon ( ). The icon is displayed, when the Select channel automatically switch is moved to the right.

Enable periodic scanning

Move the switch to the right to let the router search for a free channel in certain periods of time. When the switch is moved to the right, the Scanning period field is available for editing.

Scanning period

Specify a period of time (in seconds) after which the router rescans channels.

When you have configured the parameters, click the APPLY button.

To edit the settings of the basic wireless network, in the Wi-Fi Network section, change the needed parameters and click the APPLY button.

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Documents / Resources

D-Link DIR-842-R7 Wave 2 Wi-Fi Easy Mesh Gigabit Router [pdf] User Manual DIR-842-R7 Wave 2 Wi-Fi Easy Mesh Gigabit Router, DIR-842-R7, Wave 2 Wi-Fi Easy Mesh Gigabit Router, Easy Mesh Gigabit Router, Mesh Gigabit Router, Gigabit Router

References

• User Manual