D-Link DIR-451 User manual

2D-Link DIR-451 User Manual
Table of Contents
Product Overview ........................................................ 4
Package Contents ................................................... 4
System Requirements ............................................. 4
Introduction..............................................................5
Features .................................................................. 6
Hardware Overview ................................................. 8
Connections....................................................... 8
LEDs ..................................................................9
Installation..................................................................10
Connect to your Network ....................................... 10
Wireless Installation Considerations...................... 12
Conguration............................................................. 13
Web-based Conguration Utility ............................ 13
Setup Wizard ................................................... 14
UMTS Setup .................................................... 17
Wireless Settings ............................................. 18
Network Settings.............................................. 20
DHCP Server Settings .....................................21
Virtual Server ................................................... 22
Port Forwarding ............................................... 23
Application Rules ............................................. 24
Network Filter................................................... 25
Website Filter................................................... 26
Firewall Settings .............................................. 27
Advanced Wireless Settings ............................28
Advanced Network Settings.............................29
Administrator Login Name:........................... 30
Administrator Password: .............................. 30
Remote Management:.................................. 30
Administrator Settings...................................... 30
Time Settings................................................... 31
System Settings............................................... 32
Firmware Upgrade ........................................... 33
DDNS............................................................... 34
System Check.................................................. 35
Schedules ........................................................36
Log Settings..................................................... 37
Device Information........................................... 38
Log................................................................... 39
Stats................................................................. 40
Wireless Stats.................................................. 40
Support ............................................................41
Wireless Security....................................................... 42
What is WEP? .......................................................42
Congure WEP...................................................... 43
What is WPA? .......................................................44
Congure WPA-PSK ............................................. 45
Congure WPA (RADIUS)..................................... 46
Table of Contents

3D-Link DIR-451 User Manual
Table of Contents
Connect to a Wireless Network................................ 47
Using Windows®XP............................................... 47
Congure WEP...................................................... 48
Congure WPA-PSK ............................................. 50
Troubleshooting ........................................................ 52
Wireless Basics .........................................................54
What is Wireless?.................................................. 55
Tips........................................................................ 57
Wireless Modes ..................................................... 58
Networking Basics .................................................... 59
Check your IP address .......................................... 59
Statically Assign an IP address ............................. 60
Technical Specications........................................... 61
Contacting Technical Support ................................. 63
Warranty..................................................................... 64
Registration................................................................70

4D-Link DIR-451 User Manual
Section 1 - Product Overview
• D-Link DIR-451 Mobile Router
• Power Adapter
• Ethernet Cable
• Manual and Warranty on CD
System Requirements
• A compatible 32-bit PCMCIA (UMTS) card with service*.
• Computers with Windows®, Macintosh®, or Linux-based operating systems with an installed Ethernet
adapter
• Internet Explorer Version 6.0 or Netscape Navigator™ Version 6.0 and above (for conguration)
* Subject to services and service terms available from your carrier.
Product Overview
Package Contents
Note: Using a power supply with a different voltage rating than the one included
with the DIR-451 will cause damage and void the warranty for this product.

5D-Link DIR-451 User Manual
Section 1 - Product Overview
Introduction
D-Link announces a fast, mobile network router which allows you to share a high speed Internet connection virtually
anywhere by connecting an UMTS notebook adapter or USB-enable phone. You can get a high speed Internet
connection just about anywhere within your wireless broadband network. This router is extremely useful in situations
where a wired broadband connection is not available. Quickly set up a Wi-Fi hotspot and provide your workgroup with
an Internet connection to check email and browse the web or share le. Maximize your investment in your mobile
Internet access subscription by using this router as a xed broadband Internet solution for the home instead of paying
additional fees for cable or DSL.

6D-Link DIR-451 User Manual
Section 1 - Product Overview
Device Interfaces
• LAN Ethernet Support
• 4 Port 10/100 Mbps switch
• Complies with IEEE 802.3u specication
• Supports Auto-Negotiation
• Supports Auto-MDI/MDIX
• Supports IEEE 802.3x Flow Control in Full Duplex mode
• 3G Module Slot
• Connecting an UMTS Notebook Adapter
Function support
• Network Address Translation
• Stateful Packet Inspection
• TCP Connection state & sequence number validation
• Virtual Server
• Virtual Server is used to allow Internet users access to LAN services.
• Port Triggering / Special Applications support
• Special Application is used to run applications that require multiple connections.
• MAC Address Filtering
• Apply to WLAN and/or LAN. Select type of lter - Allow list or Deny list 64 Entries.
• DHCP Server
• Set up as a DHCP Server to distribute IP addresses to the LAN.
• DNS Relay
• WAN DNS Servers if available OR DNS requests directed to the Gateway IP address.
• Access Control
• Allow Policy Based on Schedule & IP Address
• Deny specic port ranges (8 Ranges Per Policy)
Features

7D-Link DIR-451 User Manual
Section 1 - Product Overview
• Allow all WEB access OR Allow access to a specied list of domain names (64 Domains)
• Web base setup wizard
• Step by step setting procedure
• L2TP Pass Through
• VPN Pass Through
• IPsec Pass Through
CONFIGURATION & ADMINISTRATION
• Web based interface
• Web Based Conguration Wizard
• Dynamic DNS
• E-mail Reporting
• Statistics
• Firmware upgrade
• Current Time & Daylight savings adjustment
• Conguration Save & Restore
• Remote management
• Device Manager
WIRELESS FEATURES
• SuperG & Turbo (108 Mbps) modes
• Wireless Security:
• WEP 64/128 bit
• WPA/WPA2
• WPA-PSK/WPA2-PSK
• Channel Select
• SSID Broadcast
• TX Power Adjust
• WMM
• WCN
*Available for future upgrade.

8D-Link DIR-451 User Manual
Section 1 - Product Overview
Hardware Overview
Connections
Power Receptor
Receptor for the Power
Adapter.
Reset Button
Pressing the Reset Button restores
the router to its original factory default
settings.
LAN Ports
These ports automatically sense
the cable type when connecting to
Ethernet-enabled computers. These
are Auto MDI/MDIX ports.
Internet Slot
Use this slot if a 32-bit PCMCIA
card is used for your connection.

9D-Link DIR-451 User Manual
Section 1 - Product Overview
Hardware Overview
LEDs
WAN LED
A solid light indicates connection
on the WAN port. This LED blinks
during data transmission.
WLAN LED
A solid light indicates that the wireless
segment is ready. This LED blinks during
wireless data transmission.
LAN LEDs
A solid light indicates a connection
to an Ethernet-enabled computer on
ports 1-4. The LED blinks during data
Power LED
A solid light indicates a proper
connection to the power supply.
Status LED
A blinking light indicates that the
DIR-451 is ready.
USB LED
A blinking light indicates
that the DIR-451 is

10D-Link DIR-451 User Manual
Section 2 - Installation
Connect to your Network
Installation
This section will walk you through the installation process. Placement of the router is very important. Do not place the
router in an enclosed area such as a closet, cabinet, or in the attic or garage.
Note: Ensure that the power to your DIR-451 Mobile Router is not connected before performing the installation
steps below.
32-bit PCMCIA (UMTS) Card Connection
Note: To preserve the life of your phone’s battery, it is recommended that you use your phone’s charging cradle when
connected to the DIR-451 Mobile Router.
1. Attach the antenna.
a. Remove the antenna from its plastic wrapper.
b. Screw the antenna in a clockwise direction to the back panel of the unit.
c. Once secured, position the antenna upward at its connecting joint. This will ensure optimal reception.
2. Insert your wireless 32-bit PCMCIA (UMTS) card into the internet 32-bit PCMCIA Card Slot.
3. Insert the Ethernet cable into LAN Port 1 on the back panel of the DIR-451 Mobile Router, and an available Ethernet
port on the network adapter in the computer you will use to congure the unit.
Note: The DIR-451 Mobile Router LAN Ports are “Auto-MDI/MDIX.” This provides either patch or crossover
Ethernet cable LAN Port access.

11D-Link DIR-451 User Manual
Section 2 - Installation
4. Connect the power adapter to the receptor on the back panel of your DIR-451 Mobile Router. Then plug the other
end of the power adapter into the wall outlet or power strip.
a. The Power LED will turn ON to indicate power has been applied.
b. Other LEDs will ash ON and OFF as the DIR-451 Mobile Router performs initialization and Internet connection
processes. This will take a few minutes.
c. When complete, the following LEDs will illuminate blue: Power, Status, WAN, WLAN, and LAN Port 1 (or
your specic LAN Port connection).

12D-Link DIR-451 User Manual
Section 2 - Installation
Wireless Installation Considerations
The D-Link mobile router lets you access your network using a wireless connection from virtually anywhere within the
operating range of your wireless network. Keep in mind, however, that the number, thickness and location of walls,
ceilings, or other objects that the wireless signals must pass through, may limit the range. Typical ranges vary depending
on the types of materials and background RF (radio frequency) noise in your home or business. The key to maximizing
wireless range is to follow these basic guidelines:
1. Keep the number of walls and ceilings between the D-Link router and other network devices to a
minimum - each wall or ceiling can reduce your adapter’s range from 3-90 feet (1-30 meters.) Position
your devices so that the number of walls or ceilings is minimized.
2. Be aware of the direct line between network devices. A wall that is 1.5 feet thick (.5 meters), at a
45-degree angle appears to be almost 3 feet (1 meter) thick. At a 2-degree angle it looks over 42 feet
(14 meters) thick! Position devices so that the signal will travel straight through a wall or ceiling (instead
of at an angle) for better reception.
3. Building Materials make a difference. A solid metal door or aluminum studs may have a negative effect on
range. Try to position access points, wireless routers, and computers so that the signal passes through
drywall or open doorways. Materials and objects such as glass, steel, metal, walls with insulation, water
(sh tanks), mirrors, le cabinets, brick, and concrete will degrade your wireless signal.
4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that
generate RF noise.
5. If you are using 2.4GHz cordless phones or X-10 (wireless products such as ceiling fans, lights, and
home security systems), your wireless connection may degrade dramatically or drop completely. Make
sure your 2.4GHz phone base is as far away from your wireless devices as possible. The base transmits
a signal even if the phone in not in use.

13D-Link DIR-451 User Manual
Section 3 - Configuration
Configuration
This section will show you how to congure your new D-Link mobile router using the web-based conguration utility.
Web-based Configuration Utility
To access the conguration utility, open a web-browser
such as Internet Explorer and enter the IP address of
the router (192.168.0.1).
Enter the user name (admin) and your password. Leave
the password blank by default.
If you get a Page Cannot be Displayed error, please
refer to the Troubleshooting section for assistance.

14D-Link DIR-451 User Manual
Section 3 - Configuration
Setup Wizard
You may run the setup wizard to quickly setup your router.
Click Setup Wizard to launch the wizard.
Click Launch Internet Connection Setup Wizard to
begin.
Click Setup Wizard
Click Launch Internet Connection
Setup Wizard to begin.

15D-Link DIR-451 User Manual
Section 3 - Configuration
Click Next to continue.
Create a new password and then click Next to continue.
Select your time zone from the drop-down menu and then click Next
to continue.
Click Next
Click Next
Click Next

16D-Link DIR-451 User Manual
Section 3 - Configuration
Select the ISP Card from the drop-down list and then click Username /
Password Connection (WWAN). Click Next to continue.
Click Next
Enter your WWAN user name, password, and server information. If you do
not have this information, please contact your ISP.
Click Next
Click Connect to save your settings. Once the router is nished rebooting,
click Continue. Please allow 1-2 minutes to connect.
Click Continue

17D-Link DIR-451 User Manual
Section 3 - Configuration
Select your ISP Card from the drop-down menu.
Enter your User Name for your UMTS connection.
Enter your Password for your UMTS connection.
Enter your Password again for conrmation.
Enter the name of your network server (optional).
The default is #777. This eld should not be altered
except when required by your service provider.
ISP Card:
User Name:
Password:
Retype Password:
Server Name:
Dial Number:
UMTS Setup

18D-Link DIR-451 User Manual
Section 3 - Configuration
Check the box to enable the wireless function. If
you do not want to use wireless, uncheck the box
to disable all the wireless functions.
Service Set Identier (SSID) is the name of your
wireless network. Create a name using up to 32
characters. The SSID is case-sensitive.
Indicates the channel setting for the DIR-451. By
default the channel is set to 6. The Channel can
be changed to t the channel setting for an existing
wireless network or to customize the wireless
network. The Auto Channel Scan setting can
be selected to allow the DIR-451 to choose the
channel with the least amount of interference.
Super G is a group of performance enhancement
features that increase end user application
throughput in an 802.11g network. Super G
is backwards compatible to standard 802.11g
devices. For top performance, all wireless devices
on the network should be Super G capable. Select
either Disabled, Super G without Turbo, or Super
G with Dynamic Turbo.
• Disabled - Standard 802.11g support, no enhanced capabilities.
• Super G without turbo - Capable of Packet Bursting, FastFrames, Compression, but no Turbo mode.
• Super G with Dynamic Turbo - Capable of Packet Bursting, FastFrames, Compression, and Dynamic Turbo.
This setting is backwards compatible with non-Turbo (legacy) devices. Dynamic Turbo mode is only enabled when
all devices on the wireless network are Super G with Dynamic Turbo enabled.
Enable Wireless:
Wireless Channel:
Wireless Settings
Wireless Network
Name:
Super G Mode:

19D-Link DIR-451 User Manual
Section 3 - Configuration
Please refer to Section 4 - Wireless Security for information on setting up security and encryption.
Extended Range Mode helps reduce dead spots by improving the reception algorithm, which allows your wireless clients to
associate with the DIR-451 at farther distances. Select either Enabled or Disabled.
Enable this mode if your network is made up of purely 802.11g devices. If you have both 802.11b and 802.11g wireless
clients, uncheck the box.
Check this option if you would not like the SSID of your wireless network to be broadcasted by the DIR-450. If this option is
checked, the SSID of the DIR-451 will not be seen by Site Survey utilities so your wireless clients will have to know the SSID
of your DIR-451 in order to connect to it.
Extended Range
Mode:
802.11g Only
Mode:
Enable Hidden
Wireless:

20D-Link DIR-451 User Manual
Section 3 - Configuration
This section will allow you to change the local network settings of the router and to congure the DHCP settings.
Network Settings
Enter the IP address of the router. The default
IP address is 192.168.0.1.
If you change the IP address, once you click
Apply, you will need to enter the new IP address
in your browser to get back into the conguration
utility.
Enter the Subnet Mask. The default subnet mask
is 255.255.255.0.
Enter the Domain name (Optional).
Check the box to transfer the DNS server
information from your ISP to your computers. If
unchecked, your computers will use the router
for a DNS server.
IP Address:
Subnet Mask:
Local Domain:
Enable DNS Relay:
Refer to the next page for DHCP information.