D-Link DWR-921 User manual

Version 1.00 |31/07/2018
D-Link DWR-921 User Manual DWR-921
4G LTE Router
User Manual

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D-Link DWR-921 User Manual
Preface
D-Link reserves the right to revise this publication and to make changes in the content hereof without obligation to notify any person or organization of
such revisions or changes.
Trademarks
D-Link and the D-Link logo are trademarks or registered trademarks of D-Link Corporation or its subsidiaries in the United States or other countries. All
other company or product names mentioned herein are trademarks or registered trademarks of their respective companies.
Copyright © 2013 by D-Link Corporation, Inc.
All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed written permission from D-Link Corporation, Inc.

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D-Link DWR-921 User Manual
FCC Regulations
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that may cause undesired operation.
This device has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for compliance could void the user ‘s authority to operate the equipment.
The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
This device complies with FCC radiation exposure limits set forth for an uncontrolled environment. In order to avoid the possibility of exceeding the FCC
radio frequency exposure limits, human proximity to the antenna shall not be less than 20cm (8 inches) during normal operation.

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D-Link DWR-921 User Manual
Table of Content
Preface ........................................................................................................ 2
Trademarks ............................................................................................. 2
FCC Regulations....................................................................................... 3
Product Overview....................................................................................... 7
Package Contents.................................................................................... 7
System Requirements ............................................................................. 7
Introduction ............................................................................................ 8
Hardware Overview ................................................................................ 9
Rear Panel ........................................................................................... 9
Side Panel.......................................................................................... 10
Front Panel........................................................................................ 11
Installation................................................................................................ 12
Connect to Your Network ..................................................................... 12
Wireless Installation Considerations..................................................... 13
Configuration............................................................................................ 14
Web-based Configuration Utility .......................................................... 14
Home..................................................................................................... 15
Internet ................................................................................................. 15
DWR-921 ............................................................................................... 15
Connected Clients ................................................................................. 16
Settings ..................................................................................................... 17
WAN ...................................................................................................... 17
Static IP.............................................................................................. 18
Dynamic IP (DHCP Client) .................................................................. 19
PPPoE ................................................................................................ 20
IPv6........................................................................................................ 21
IPv6 Static.......................................................................................... 21
IPv6 Auto ........................................................................................... 22
IPv6 6RD ............................................................................................ 23
Status................................................................................................. 23
Mobile Network .................................................................................... 24
Operation Mode.................................................................................... 25
Wi-Fi Settings............................................................................................ 26
Wireless Security Mode ........................................................................ 28
ACL ........................................................................................................ 29
Site Survey............................................................................................. 30
Wi-Fi Protected Setup (WPS) ................................................................ 31
LAN............................................................................................................ 32
IPv4........................................................................................................ 32
IPv6........................................................................................................ 33

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D-Link DWR-921 User Manual
RADVD................................................................................................... 34
Tunnel 6 over 4 ..................................................................................... 36
VPN ........................................................................................................... 37
PPTP ...................................................................................................... 37
L2TPv2 ................................................................................................... 38
L2TPv3 ................................................................................................... 39
Status .................................................................................................... 40
USB............................................................................................................ 41
Disk Information ................................................................................... 41
Account Management .......................................................................... 42
Samba Account ................................................................................. 42
Account Table ................................................................................... 43
Share Folder .......................................................................................... 44
Current Share Folder Table ............................................................... 44
Features .................................................................................................... 45
Quality of Service (QoS) ........................................................................ 45
Firewall.................................................................................................. 48
Advance Firewall Settings ................................................................. 48
DDOS ................................................................................................. 49
IP Filtering ......................................................................................... 50
Port Filtering ..................................................................................... 51
Mac Filtering ..................................................................................... 52
Port Forwarding .................................................................................... 53
URL Filtering .......................................................................................... 54
Route ..................................................................................................... 55
Default Route .................................................................................... 55
Static Route ....................................................................................... 56
Dynamic DNS......................................................................................... 57
Management ............................................................................................ 58
Time....................................................................................................... 58
NTP Server......................................................................................... 58
Auto Reboot ...................................................................................... 59
System Log ............................................................................................ 60
System Settings ..................................................................................... 61
Administrator .................................................................................... 61
System............................................................................................... 62
Statistics ................................................................................................ 63
User Statistics.................................................................................... 63
Interface Statistics............................................................................. 64
Diagnostics ............................................................................................ 65
Ping.................................................................................................... 65
Traceroute......................................................................................... 65
TR069 .................................................................................................... 66
Upgrade................................................................................................. 67
Connecting to a Wireless Network ........................................................... 68
Using Windows 10/8.1/8 ...................................................................... 68

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D-Link DWR-921 User Manual
Using Windows 7 .................................................................................. 71
Using Windows Vista™.......................................................................... 73
Using Windows® XP .............................................................................. 74
Troubleshooting ....................................................................................... 75
Tips............................................................................................................ 77
Networking Basics .................................................................................... 78
Check your IP address ........................................................................... 78
Statically Assign an IP address .............................................................. 79
Technical Specifications ........................................................................... 80

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D-Link DWR-921 User Manual
Product Overview
Package Contents
•D-Link DWR-921 4G LTE Router
•Power Adapter
•QIG and Warranty Documentations
•Cat5e Ethernet Cable
Note: Using a power supply with a different voltage rating than the one included with the DWR-921 will cause damage and void the warranty for this
product.
System Requirements
•A compatible (U)SIM card with service. *
•Computer with Windows, Mac OS, or Linux-based operating system with an installed Ethernet adapter
•Java-enabled browser such as Internet Explorer 6, Safari 4.0, Chrome 20.0, or Firefox 7 or above (for configuration)
*Subject to services and service terms available from your carrier.

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D-Link DWR-921 User Manual
Introduction
The D-Link 4G LTE Router allows users to access worldwide mobile broadband networks and share them with a number of wired and wireless devices. Once
connected, users can transfer data, stream media, and send SMS messages. Simply insert your UMTS/HSUPA SIM card and share your 3G/4G Internet
connection through a secure 802.11n wireless network or using any of the four 10/100 Ethernet ports.
The DWR-921 keeps your wireless network safe with WPA/WPA2 wireless encryption, preventing unauthorized users from accessing your network. The
DWR-921 utilizes dual-active firewalls (SPI and NAT) to prevent potential attacks across the Internet and includes MAC address filtering to control which
clients can access your network, and what content they can access.
The DWR-921 4G LTE Router can be installed quickly and easily almost anywhere. This router is great for situations where an impromptu wireless network is
required, or wherever conventional network access is unavailable. The DWR-921 can even be installed in buses, trains, or boats, allowing passengers to
access the Internet while commuting.

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D-Link DWR-921 User Manual
Power Switch
Power Connector
Ethernet Port
WAN Port
Hardware Overview
Rear Panel
Port
Function
LAN Ethernet Ports
For connection to a network device such as a desktop or notebook computer.
WAN Ethernet Port
For connection to a DSL/Cable modem or router
Power Connector
Connects to the included power adapter.
Power Switch
Turns the device on or off.

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D-Link DWR-921 User Manual
USB Port
Reset Button
WPS Button
Hardware Overview
Side Panel
Function
USB Port
Connect a USB Drive to share Media across the Network
Reset
Press and hold for 10 seconds while device is powered ON to reset device back to factory default settings
WPS
Wireless Protected Setup. Connect Devices using WPS functionality
Hardware Overview

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D-Link DWR-921 User Manual
WAN
Wi-Fi
USB
Power
LAN 4
LAN 4
LAN 4
LAN 4
WPS
LTE
Front Panel
LED
Function
Power
Solid Blue: Power is ON
WAN
Solid Blue: Cable is Connected but no Data transmitted
Flashing Blue: Data is being transmitted
LAN 1-4
Solid Blue: Ethernet connection has been established
Flashing Blue: Data is being transmitted
Wi-Fi
Solid Blue: Wi-Fi connection is ON
Flashing Blue: Data is transmitted over Wi-Fi connection
OFF: Wi-Fi function is switched OFF
WPS
Solid Blue: Connection has been established
Flashing Blue: Device is looking for other WPS enabled devices
OFF: Function disabled or Inactive
USB
Solid Blue: USB connected
OFF: No USB drive Connected
LTE
Solid Blue: Mobile connection Established but no Data transmitted
OFF: Mobile connection not Established or SIM not attached

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D-Link DWR-921 User Manual
Installation
This section will guide you through the installation process. Placement of the router is very important. Do not place the router in an enclosed area such as a
closet, cabinet, or in an attic or garage.
Connect to Your Network
1. Ensure that your DWR-921 4G LTE Router is disconnected and powered off.
2. Insert a standard (U)SIM card into the SIM card slot on the bottom of the router. The gold contacts should face downwards.
Caution: Always unplug/power down the router before installing or removing the SIM card. Never insert or remove the SIM card while the
router is in use.
3. Insert your Internet/WAN network cable into the WAN port on the back of the router (if applicable).
Note: The 3G/4G connection can also be used as a backup WAN. Once a backup is configured, the router will automatically use 3G for the
Internet connection if the Ethernet WAN is not available.
4. Insert the Ethernet cable into the LAN Port 1 on the back panel of the DWR-921 4G LTE Router and an available Ethernet port on the
network adapter in the computer you will use to configure the router.
Note: The DWR-921 4G LTE Router LAN Ports are Auto-MDI/MDIX, so both patch and crossover Ethernet cables can be used.
5. Connect the power adapter to the power connecter on the back panel of your DWR-921 4G LTE Router. Plug the other end of the
power adapter into a wall outlet or power strip and turn the device on.
a. The Power LED will light up to indicate that power has been supplied to the router.
b. After a few moments, if the router is running correctly the following LED’s should be on: Power, WAN (when connected), LAN 1-
4 (if connected), Wi-Fi, LTE (when mobile sim is attached).

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D-Link DWR-921 User Manual
Wireless Installation Considerations
The DWR-921 can be accessed using a wireless connection from anywhere within the operating range of your wireless network. Keep in mind
that the quantity, thickness, and location of walls, ceilings, or other objects that the wireless signals must pass through may limit the range of
the wireless signal. Ranges vary depending on the types of materials and background RF (radio frequency) noise in your home or office. The
key to maximizing the wireless range is to follow these basic guidelines:
1. Minimize the number of walls and ceilings between the router and other network devices. Each wall or ceiling can reduce your
adapter’s range from 3 to 90 feet (1 to 30 meters).
2. Be aware of the direct line between network devices. A wall that is 1.5 feet thick (0.5 meters), at a 45-degree angle appears to be
almost 3 feet (1 meter) thick. At a 2-degree angle it can appear over 42 feet (14 meters) thick. Position devices so that the signal will
travel straight through a wall or ceiling (instead of at an angle) for better reception.
3. Try to position access points, wireless routers, and computers so that the signal passes through open doorways or drywall. Materials
such as glass, metal, brick, insulation, concrete, and water can affect wireless performance. Large objects such as fish tanks, mirrors,
filing cabinets, metal doors, and aluminium studs may also have a negative effect on range.
4. If you are using 2.4 GHz cordless phones, make sure that the phone base is as far away from your wireless device as possible. The base
transmits a signal even if the phone is not in use. In some cases, cordless phones, X-10 wireless devices, and electronic equipment such
as ceiling fans, fluorescent lights, and home security systems may dramatically degrade wireless connectivity.

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D-Link DWR-921 User Manual
Configuration
This section will show you how to configure your new D-Link mobile router using the web-based configuration utility
Web-based Configuration Utility
To access the configuration utility, open a web browser such as Internet
Explorer and enter the IP address of the router (192.168.1.254 by default).
To login to the configuration utility, enter admin as the username and
password and click on Login or press enter.
The configuration utility will open to the Home page. You can view
different configuration pages by clicking on the categories at the top
of the screen (Home/Settings/Features/Management), and then
selecting a configuration page from the bar below the Main Menu
categories.

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D-Link DWR-921 User Manual
Home
The Home page allows you to view your Internet Connection info, as well as the view the connected devices.
Internet
On this page, you can view information about the Internet status of the DWR-921,
including MAC Address, Connection Type, Network Status, Connection Uptime, IP
Address, Default Gateway, Primary DNS Server and Secondary DNS Server.
DWR-921
This wizard will guide you through a step-by-step process to configure your router
to connect to the Internet.

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D-Link DWR-921 User Manual
Connected Clients
This page shows the IP addresses and host names of all the PCs in your network

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D-Link DWR-921 User Manual
Settings
This Page allows for certain settings to be changed or modified
WAN
On this page, you can configure the parameters of the different WAN connection and view the status for this connection.
Static IP Address
Connections:
Choose this option if your Internet Service Provider provided you with IP address information that has to be
manually configured. See “Static IP” on page 13 for information about how to configure this type of connection.
DHCP Client (Dynamic
IP Address):
Choose this if your Internet connection automatically provides you with an IP address. Most cable modems use
this type of connection. See “Dynamic IP (DHCP)” on page 14 for information about how to configure this type of
connection.
Username /
Password Connection
(PPPoE):
Choose this option if your Internet connection requires a username and password to connect. Most DSL modems
use this style of connection. See “PPPoE” on page 15 for information about how to configure this type of
connection.

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D-Link DWR-921 User Manual
Static IP
Choose this Internet connection if your ISP assigns you a static IP address. After modifying any settings, click Save & Apply to save your
changes.
IP Address:
Enter the IP address assigned to your network connection.
Subnet Mask:
Enter the subnet mask.
Default Gateway:
Enter the default gateway.
MTU:
You may need to change the Maximum Transmission Unit (MTU)
for optimal performance. The default value is 1500.
DNS 1:
Enter the primary DNS server.
DNS 2:
Enter the secondary DNS server.
Enable VLAN:
Enter the VLAN ID value

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D-Link DWR-921 User Manual
Dynamic IP (DHCP Client)
This section will help you to obtain IP address information automatically from your ISP. Use this option if your ISP didn’t provide you with IP
address information and/or a username and password. After modifying any settings, click Save & Apply to save your changes.
Enable:
Enable or Disable WAN connection
WAN Access Type:
Dynamic IP (DHCP)
MTU:
You may need to change the Maximum Transmission Unit
(MTU) for optimal performance. The default value is 1500.
Enable VLAN:
Enable or Disable VLAN (once enable VLAN ID should be
entered).

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D-Link DWR-921 User Manual
PPPoE
Choose this Internet connection if your ISP provides you with a PPPoE account. After modifying any settings, click Save Settings to save your
changes.
WAN Access Type:
Select PPPoE.
Username:
Enter the Username as provided by the ISP.
Password:
Enter the Password as provided by the ISP.
Service Name:
Enter the Service Name (Default blank)
MTU:
Enter the Maximum Transmission Unit default 1492
Connection Type:
Choose between 3 types:
•Continuous (default)
•Connect on Demand
•
Manal
Enable VLAN:
Enable or Disable VLAN (If enabled enter VLAN ID).