DIR-412行動無線寬頻路由器
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.
Manual Revisions
Revision Date Description
1.0 October 20, 2009 • First Draft.
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 © 2009 by D-Link Systems, Inc.
All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed written permission
from D-Link Systems, Inc.
iD-Link DIR-412 User Manual
Table of Contents
Table of Contents
Preface...........................................................................i
Manual Revisions ..................................................... i
Trademarks .............................................................. i
Product Overview ........................................................1
Package Contents ...................................................1
System Requirements .............................................2
Features ..................................................................3
Hardware Overview ................................................. 4
Connections ....................................................... 4
Top View ............................................................ 5
Switching Between WAN Mode/3G Router
Mode ..................................................................6
Installation ....................................................................7
Before you Begin ..................................................... 7
Wireless Installation Considerations ........................ 8
Network Diagram .................................................... 9
WAN Connection ...............................................9
Network Diagram .................................................. 10
3G Connection ................................................. 10
Connect to Cable/DSL/Satellite Modem ................ 11
Connect to a 3G Internet Service ..........................13
Connect to Another Router .................................... 14
Conguration ............................................................. 16
Web-based Conguration Utility ............................ 16
Internet Connection Setup Wizard (3G Mode) . 17
Manual Conguration (3G Mode) ....................20
3G Internet Connection ................................ 20
Internet Connection Setup Wizard (WAN
Mode) ............................................................... 21
Manual Conguration (WAN Mode) ................. 28
Static IP Address .......................................... 29
Dynamic IP Address (DHCP) ....................... 30
PPPoE (Username/Password) .....................31
PPTP (Username/Password) ....................... 33
L2TP (Username/Password) ........................35
Russia PPTP (Dual Access) ........................37
Russia PPPoE (Dual Access) ...................... 39
Wireless Settings ............................................. 41
Manual Wireless Network Setup .................. 42
Network Settings .............................................. 44
DHCP Server Settings .................................45
DHCP Reservation .......................................46
Virtual Server ...................................................47
Port Forwarding ...............................................49
Application Rules .............................................50
QoS Engine .....................................................51
Network Filters ................................................. 52
Website Filters ................................................. 53
Firewall Settings ..............................................54
Firewall Rules ............................................... 55
Advanced Wireless Settings ............................ 57
Wi-Fi Protected Setup ...................................... 58
iiD-Link DIR-412 User Manual
Table of Contents
Advanced Network Settings ............................. 59
UPnP ............................................................59
Internet Ping Block ....................................... 59
Internet Port Speed ...................................... 59
Multicast Streams ......................................... 59
Administrator Settings ...................................... 60
Change Password ........................................60
Remote Management ................................... 60
Time Settings ................................................... 61
E-mail Settings ................................................. 62
System Settings ............................................... 63
Update Firmware .............................................64
DDNS ............................................................... 65
System Check .................................................. 66
Schedules ........................................................67
Device Information ........................................... 68
Logs .................................................................69
Using Windows Vista® ...........................................81
Congure WPA/WPA2 ..................................... 82
Connect Using WCN 2.0 .................................. 84
Using Windows® XP ............................................... 85
Congure WPA-PSK ........................................ 86
Troubleshooting ........................................................ 88
Wireless Basics ......................................................... 92
What is Wireless? .................................................. 93
Tips ........................................................................ 95
Wireless Modes ..................................................... 96
Networking Basics ....................................................97
Check your IP address ..........................................97
Statically Assign an IP address .............................98
Technical Specications........................................... 99
Statistics ..........................................................70
Internet Sessions .............................................71
Wireless ...........................................................72
Support ............................................................73
Wireless Security.......................................................74
What is WPA? .......................................................74
Wireless Connection Setup Wizard ....................... 75
Add Wireless Device with WPS Wizard .................78
Congure WPA-Personal (PSK) ............................ 79
Congure WPA-Enterprise (RADIUS) ...................80
Connect to a Wireless Network ................................81
iiiD-Link DIR-412 User Manual
Section 1 - Product Overview
Product Overview
Package Contents
D-Link DIR-412 Wireless N Router
(Available in White or Black*)
Power Adapter
Ethernet Cable
CD-ROM
Note: Using a power supply with a different voltage rating than the one included with the DIR-412 will cause damage and void the warranty for this
product.
*The white version of the DIR-412 Wireless N Router will be used for all diagrams in this user manual.
1D-Link DIR-412 User Manual
Section 1 - Product Overview
System Requirements
Network Requirements
Web-based Conguration
Utility Requirements
• An Ethernet-based Cable or DSL modem
• IEEE 802.11n-draft/g wireless clients
• 10/100 Ethernet
Computer with the following:
• Windows®, Macintosh, or Linux-based operating
system
• An installed Ethernet adapter
Browser Requirements:
• Internet Explorer 6.0 or higher
• Mozilla 1.7.12 or higher
• Firefox 1.5 or higher
• Safari 1.0 or higher (with Java 1.3.1 or higher)
• Flock 0.7.14 or higher
• Opera 6.0 or higher
CD Installation Wizard
Requirements
Windows® Users: Make sure you have the latest version
of Java installed. Visit www.java.com to download the
latest version.
Computer with the following:
• Windows® XP with Service Pack 2 or Vista
• An installed Ethernet adapter
• CD-ROM drive
®
2D-Link DIR-412 User Manual
Section 1 - Product Overview
• Faster Wireless Networking - The DIR-412 provides up to 300Mbps* wireless connection with other
802.11n wireless clients. This capability allows users to participate in real-time activities online, such as
video streaming, online gaming, and real-time audio.
• Compatible with 802.11g Devices - The DIR-412 is still fully compatible with the IEEE 802.11g standard,
so it can connect with existing 802.11g PCI, USB and Cardbus adapters.
• 3G Internet Connection Support - Connect a 3G USB dongle to the DIR-412 to access 3G Internet
Services.
• Advanced Firewall Features - The Web-based user interface displays a number of advanced network
management features including:
• Content Filtering - Easily applied content ltering based on MAC Address, URL, and/or
Domain Name.
Features
• Filter Scheduling - These lters can be scheduled to be active on certain days or for a
duration of hours or minutes.
• Secure Multiple/Concurrent Sessions - The DIR-412 can pass through VPN sessions. It
supports multiple and concurrent IPSec and PPTP sessions, so users behind the DIR-412
can securely access corporate networks.
• User-friendly Setup Wizard - Through its easy-to-use Web-based user interface, the DIR-412 lets you
control what information is accessible to those on the wireless network, whether from the Internet or from
your company’s server. Congure your router to your specic settings within minutes.
* Maximum wireless signal rate derived from IEEE Standard 802.11g and Draft 802.11n specications. Actual data throughput will vary. Network conditions and
environmental factors, including volume of network trafc, building materials and construction, and network overhead, lower actual data throughput rate. Environmental
conditions will adversely affect wireless signal range.
3D-Link DIR-412 User Manual
Section 1 - Product Overview
Hardware Overview
Connections
WAN Mode/3G Router Mode Switch
Use this switch to change between
WAN mode and 3G Router mode.
Ethernet Port
In WAN mode the Ethernet port is used to connect
to your WAN connection. In 3G mode the Ethernet
port is used to connect to your LAN connection.
Power Receptor
Receptor for the supplied power
adapter.
Reset
Pressing the Reset button restores the router to
its original factory default settings.
4D-Link DIR-412 User Manual
Section 1 - Product Overview
Hardware Overview
Top View
Power LED
Lights orange during bootup. Lights
green when router has booted
up. A solid green light indicates
a proper connection to the power
supply. If the LED blinks orange
the system has failed.
Ethernet LED
A solid green light indicates that a link
has been established. This LED blinks
during data transmission.
3G USB Connection
Connect your 3G USB dongle to this
port if you want to use a 3G Internet
connection.
Internet LED
A solid green light indicates a
successful 3G connection. A solid
orange light indicates a 3G error, a
WAN failure, or a system failure. A
blinking green light indicates that the
WAN connection is enabled when the
Router is operating in WAN mode.
WLAN LED
A solid green light indicates that
the wireless segment is ready.
This LED blinks during wireless
data transmission.
WPS Button
Press the WPS button for 1 second to
initiate the WPS process. The button will
ash blue while a WPS connection is being
established. The button will light blue for 300
seconds if a successful WPS connection
has been made.
5D-Link DIR-412 User Manual
Section 1 - Product Overview
Hardware Overview
Switching Between WAN Mode/3G Router Mode
The DIR-412 features a hardware switch that enables users to switch between WAN mode and 3G router mode.
When the DIR-412 is operating in WAN mode, WAN connectivity is achieved via the DIR-412’s Ethernet port. In this
mode LAN clients need to access the DIR-412 via the DIR-412’s wireless connection. When the DIR-412 is operating in
WAN mode network connectivity is more resilient as Internet connectivity can be failed over to a backup 3G connection,
if the main WAN connection fails.
When the DIR-412 is in 3G router mode, LAN clients can access the DIR-412 via the DIR-412’s Ethernet connection,
as well as via the wireless connection. The disadvantage of 3G router mode is that if the 3G connection fails, Internet
connectivity on the network will be lost.
6D-Link DIR-412 User Manual
Section 2 - Installation
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.
Before you Begin
• Please congure the router with the computer that was last connected directly to your modem.
• You can only use the Ethernet port on your modem. If you were using the USB connection before using
the router, then you must turn off your modem, disconnect the USB cable and connect an Ethernet cable
to the Ethernet port on the router, and then turn the modem back on. In some cases, you may need to
call your ISP to change connection types (USB to Ethernet).
• If you have DSL and are connecting via PPPoE, make sure you disable or uninstall any PPPoE software
such as WinPoet, Broadjump, or Enternet 300 from your computer or you will not be able to connect to
the Internet.
7D-Link DIR-412 User Manual
Section 2 - Installation
Wireless Installation Considerations
The D-Link wireless router lets you access your network using a wireless connection from virtually anywhere within
the operating range of your wireless network. Keep in mind, however, that the number, thickness and location of
walls, ceilings, or other objects that the wireless signals must pass through, may limit the range. Typical ranges vary
depending on the types of materials and background RF (radio frequency) noise in your home or business. The key
to maximizing wireless range is to follow these basic guidelines:
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.
8D-Link DIR-412 User Manual
Section 2 - Installation
Network Diagram
WAN Connection
9D-Link DIR-412 User Manual
Section 2 - Installation
Network Diagram
3G Connection
10D-Link DIR-412 User Manual
Section 2 - Installation
Connect to Cable/DSL/Satellite Modem
If your Internet connection is provided using a cable/DSL/satellite modem, carry out the following procedure before
connecting the router to a cable/DSL/satellite modem:
• Move the WAN Mode/3G Router Mode switch on the DIR-412 so that it is in the 3G Router Mode position.
• Congure the wireless settings on the DIR-412 in 3G Router mode (see “Wireless Settings” on page 41
for more information).
• After conguring the wireless settings, move the WAN Mode/3G Router Mode switch so that it is in
the WAN Mode position.
To connect to a cable/DSL/Satellite modem, please follow the steps below:
1. Place the router in an open and central location. Do not plug the power adapter into the router.
2. Turn the power off on your modem. If there is no on/off switch, then unplug the modem’s power adapter. Shut down
your computer.
3. Unplug the Ethernet cable (that connects your computer to your modem) from your computer and place it into the
Ethernet port on the router.
5. Turn on or plug in your modem. Wait for the modem to boot (about 30 seconds).
6. Plug the power adapter to the router and connect to an outlet or power strip. Wait about 50 seconds for the router
to boot.
7. Turn on your computer.
8. Use the wireless connection on your computer to connect to the router, using the wireless settings you congured
11D-Link DIR-412 User Manual
Section 2 - Installation
previously.
9. Verify the link lights on the router. The power light, Internet light, and the Wireless LAN light should be lit. If not,
make sure your computer, modem, and router are powered on and verify the cable connections are correct.
10. Skip to “Conguration” on page 16 to congure your router.
12D-Link DIR-412 User Manual
Section 2 - Installation
Connect to a 3G Internet Service
If you are using a 3G USB dongle to connect to the Internet, please follow the steps below:
1. Move the WAN Mode/3G Router Mode switch on the DIR-412 so that it is in the 3G Router Mode position.
2. Place the router in an open and central location. Do not plug the power adapter into the router.
3. Turn the power off on your modem. If there is no on/off switch, then unplug the modem’s power adapter. Shut down
your computer.
4. Insert your 3G USB dongle into the DIR-412’s 3G USB Internet connection.
5. Unplug the Ethernet cable (that connects your computer to your modem) from your computer and place it into the
Ethernet port on the router.
6. Turn on or plug in your modem. Wait for the modem to boot (about 30 seconds).
7. Plug the power adapter to the router and connect to an outlet or power strip. Wait about 50 seconds for the router
to boot.
8. Turn on your computer.
9. Verify the link lights on the router. The power light, Internet light, and the Wireless LAN light should be lit. If not,
make sure your computer and router are powered on and verify the cable connections are correct.
10. Skip to “Conguration” on page 16 to congure your router.
13D-Link DIR-412 User Manual
Section 2 - Installation
Connect to Another Router
If you are connecting the D-Link router to another router to use as a wireless access point and/or switch, you will have
to do the following before connecting the router to your network:
• Move the WAN Mode/3G Router Mode switch on the DIR-412 so that it is in the 3G Router Mode position.
• Disable UPnP
• Disable DHCP
• Change the LAN IP address to an available address on your network. The Ethernet port on the router
cannot accept a DHCP address from your other router.
To connect to another router, please follow the steps below:
1. Plug the power into the router. Connect one of your computers to the Ethernet port using an Ethernet cable. Make
sure your IP address on the computer is 192.168.0.xxx (where xxx is between 2 and 254). Please see the Networking
Basics section for more information. If you need to change the settings, write down your existing settings before
making any changes. In most cases, your computer should be set to receive an IP address automatically in which
case you will not have to do anything to your computer.
™
2. Open a web browser and enter http://192.168.0.1 and press Enter. When the login window appears, set the user
name to Admin and leave the password box empty. Click Log In to continue.
3. Click on Advanced and then click Advanced Network. Uncheck the Enable UPnP checkbox. Click Save Settings
to continue.
4. Click Setup and then click Network Settings. Uncheck the Enable DHCP Server server checkbox. Click Save
Settings to continue.
5. Under Router Settings, enter an available IP address and the subnet mask of your network. Click Save Settings to
14D-Link DIR-412 User Manual
Section 2 - Installation
save your settings. Use this new IP address to access the conguration utility of the router in the future. Close the
browser and change your computer’s IP settings back to the original values as in Step 1.
6. Disconnect the Ethernet cable from the router and reconnect your computer to your network.
7. Connect an Ethernet cable into the Ethernet port of the router and connect it to your other router.
8. To congure your wireless network, open a web browser and enter the IP address you assigned to the router. Refer
to the Conguration and Wireless Security sections for more information on setting up your wireless network.
15D-Link DIR-412 User Manual
Section 3 - Configuration
Configuration
This section will show you how to congure your new D-Link wireless router using the web-based conguration
utility.
Web-based Configuration Utility
To access the conguration utility, open a web-browser
such as Internet Explorer and enter the IP address of
the router (192.168.0.1).
Type Admin in the User Name eld and then enter
your password. Leave the password blank by default.
Click the Login button to log in to the router.
If you get a Page Cannot be Displayed error, please
refer to the Troubleshooting section for assistance.
16D-Link DIR-412 User Manual
Section 3 - Configuration
Internet Connection Setup Wizard (3G Mode)
Once logged into the web interface of the router, the Setup > Internet page will appear. Click the Internet Connection
Setup Wizard button to quickly congure your router using the setup wizard.
If you want to enter your settings without running the wizard, click Manual Internet Connection Setup and skip to
“Manual Conguration (3G Mode)” on page 20.
17D-Link DIR-412 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.
18D-Link DIR-412 User Manual
Section 3 - Configuration
Congure your 3G Internet Connection settings and
then click Next to continue.
Click Connect to save your settings. Once the router
has nished rebooting, click Continue. Please allow
1-2 minutes to connect.
19D-Link DIR-412 User Manual
Section 3 - Configuration
Manual Configuration (3G Mode)
3G Internet Connection
If you opt to set up your Internet connection manually, you will be redirected to a WAN page that allows you to congure
your 3G conguration parameters.
Country:
ISP:
User Name:
Password:
Dial Number:
APN:
Reconnect
Mode:
Maximum
Idle Time:
Select your country from the drop-down menu.
Select your Internet Service Provider (ISP) from the
drop-down menu.
Enter the user name for your 3G Internet connection.
Enter the password for your 3G Internet connection.
Enter the dial number for your 3G service provider.
Enter the Access Point Name (APN) for your 3G service
provider.
Click a radio button to choose a reconnection mode. The
options are Always-on, Connect on demand, or Manual.
Enter the maximum amount of time the Internet connection
should be maintained during inactivity. To disable this
feature, enable the Always-on reconnect mode.
MTU:
Maximum Transmission Unit. You may need to change the
MTU for optimal performance with your specic ISP. The
default is 1500.
Click the Save Settings button when you have nished conguring the 3G connection.
20D-Link DIR-412 User Manual
Section 3 - Configuration
Internet Connection Setup Wizard (WAN Mode)
Once logged into the web interface of the router, the Setup > Internet page will appear. Click the Internet Connection
Setup Wizard button to quickly congure your router using the setup wizard.
If you want to enter your settings without running the wizard, click Manual Internet Connection Setup and skip to
“Manual Conguration (WAN Mode)” on page 28.
21D-Link DIR-412 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.
22D-Link DIR-412 User Manual
Section 3 - Configuration
Select the type of Internet connection you will use
on your WAN connection. Check the Skip 3G
Conguaration box if you do not want to congure
the router’s 3G connection.
Click Next to continue.
If you selected Dynamic IP Address, you may need
to enter the MAC address of the computer that was
last connected directly to your modem. If you are
currently using that computer, click Copy Your PC’s
MAC Address and then click Next to continue.
The Host Name is optional but may be required by
some ISPs. The default host name is “DIR-412”.
23D-Link DIR-412 User Manual
Section 3 - Configuration
If you selected PPPoE, enter your PPPoE username
and password. Click Next to continue.
Select Static if your ISP assigned you the IP address,
subnet mask, gateway, and DNS server addresses.
Note: Make sure to remove your PPPoE software
from your computer. The software is no longer
needed and will not work through a router.
If you selected PPTP, enter your PPTP username
and password. Click Next to continue.
24D-Link DIR-412 User Manual
Section 3 - Configuration
If you selected L2TP, enter your L2TP username
and password. Click Next to continue.
If you selected Static IP Address Connection, enter
the network settings supplied by your Internet
provider. Click Next to continue.
25D-Link DIR-412 User Manual
Section 3 - Configuration
Russia PPTP (dual mode) and Russia PPPoE
(dual mode) are specically for Russian users.
Please ll in the username and password given by
Russia ISPs and click Next to continue.
Other users may ignore these 2 settings.
26D-Link DIR-412 User Manual
Section 3 - Configuration
If you left the Skip 3G Conguration checkbox
unchecked in Step 3 of the Internet Connection
Setup Wizard, the following window appears:
Configure the parameters for your 3G Internet
Connection and click next to Continue.
Click Connect to save your settings and reboot the
router. Please allow 1-2 minutes to connect.
27D-Link DIR-412 User Manual
Section 3 - Configuration
Manual Configuration (WAN Mode)
If you opt to set up your Internet connection manually, you will be redirected to a WAN page that allows you to select
your Internet type and enter the correct conguration parameters.
Internet
Connection
Type:
3G Internet
Connection:
Select your Internet connection type using
the “My Internet Connection is:” drop-down
menu. To enable the Router to connect to the
Internet via the 3G Internet connection in the
event that the WAN connection fails, check
the Enable WAN Failover box. Congure the
parameters for your WAN connection in the
section below the Internet Connection Type
section as described in the following pages.
If enabling the WAN Failover feature, congure
the parameters for your 3G Internet Connection.
Click the Save Settings button when you have
nished conguring the WAN connection.
28D-Link DIR-412 User Manual
Section 3 - Configuration
Manual Configuration (WAN Mode)Manual Configuration (WAN Mode)
Static IP Address
Choose Static IP (DHCP) from the My Internet Connection is drop-down menu if all the Internet port’s IP information
is provided to you by your ISP. You will need to enter in the IP address, subnet mask, gateway address, and DNS
address(es) provided to you by your ISP. Each IP address entered in the elds must be in the appropriate IP form,
which are four octets separated by a dot (x.x.x.x). The Router will not accept the IP address if it is not in this format.
IP Address:
Subnet Mask:
Default Gateway:
DNS Servers:
MTU:
MAC Address:
Enter the IP address assigned by your ISP.
Enter the Subnet Mask assigned by your ISP.
Enter the Gateway assigned by your ISP.
Enter the Primary and Secondary DNS server
IP addresses assigned by your ISP.
Maximum Transmission Unit - you may need to
change the MTU for optimal performance with
your specic ISP. 1500 is the default MTU.
The default MAC Address is set to the Internet
port’s physical interface MAC address on the
Broadband Router. It is not recommended that
you change the default MAC address unless
required by your ISP. You can use the Clone
Your PC’s MAC Address button to replace
the Internet port’s MAC address with the MAC
address of your Ethernet card.
29D-Link DIR-412 User Manual
Section 3 - Configuration
Manual Configuration (WAN Mode)
Dynamic IP Address (DHCP)
Choose Dynamic IP (DHCP) from the My Internet Connection is drop-down menu if all WAN IP information is
obtained from your ISP.
Host Name:
DNS Addresses:
MTU:
MAC Address:
The Host Name is optional but may be required
by some ISPs. The default host name is the
device name of the Router and may be changed.
Enter the Primary and Secondary DNS server
IP addresses assigned by your ISP.
Maximum Transmission Unit - you may need to
change the MTU for optimal performance with
your specic ISP. 1500 is the default MTU.
The default MAC Address is set to the Internet
port’s physical interface MAC address on the
Broadband Router. It is not recommended that
you change the default MAC address unless
required by your ISP. You can use the Clone
Your PC’s MAC Address button to replace
the Internet port’s MAC address with the MAC
address of your Ethernet card.
30D-Link DIR-412 User Manual
Section 3 - Configuration
Manual Configuration (WAN Mode)
PPPoE (Username/Password)
Choose PPPoE (Username/Password) from the My Internet Connection is drop-down menu if your ISP uses a
PPPoE connection. Your ISP will provide you with a username and password. This option is typically used for DSL
services. Make sure to remove your PPPoE software from your computer. The software is no longer needed and will
not work through a router.
Address Mode:
IP Address:
User Name:
Password:
Service Name:
Reconnect
Mode:
Maximum Idle
Time:
Select Static if your ISP assigned you the IP
address, subnet mask, gateway, and DNS
server addresses. In most cases, select
Dynamic.
Enter the IP address (Static PPPoE only).
Enter your PPPoE user name.
Enter your PPPoE password and then retype
the password in the next box.
Enter the ISP Service Name (optional).
Select either Always-on, On-Demand, or
Manual.
Enter a maximum idle time during which the
Internet connection is maintained during
inactivity. To disable this feature, enable Autoreconnect.
31D-Link DIR-412 User Manual
Section 3 - Configuration
DNS Mode:
MTU:
MAC Address:
Click the Receive DNS from ISP radio button if you want to dynamically receive the DNS Server IP addresses from your
ISP. To manually enter the DNS Server IP addresses, click the Enter DNS Manually radio button and enter the DNS Server
IP addresses in the Primary DNS Server and Secondary DNS Server elds.
Maximum Transmission Unit - you may need to change the MTU for optimal performance with your specic ISP. 1492 is the
default MTU.
The default MAC Address is set to the Internet port’s physical interface MAC address on the Broadband Router. It is not
recommended that you change the default MAC address unless required by your ISP. You can use the Clone Your PC’s
MAC Address button to replace the Internet port’s MAC address with the MAC address of your Ethernet card.
32D-Link DIR-412 User Manual
Section 3 - Configuration
Manual Configuration (WAN Mode)
PPTP (Username/Password)
Choose PPTP (Username/Password) from the My Internet Connection is drop-down menu if if your ISP uses a PPTP
connection. Your ISP will provide you with a username and password. This option is typically used for DSL services.
Address Mode:
PPTP IP Address:
PPTP Subnet
Mask:
PPTP Gateway IP
Address:
PPTP Server IP
Address:
Username:
Password:
Select Static if your ISP assigned you the IP
address, subnet mask, gateway, and DNS
server addresses. In most cases, select
Dynamic.
Enter the IP address (Static PPTP only).
Enter the Subnet Mask (Static PPTP only).
Enter the Gateway IP address provided by your
ISP (Static PPTP only).
Enter the Server IP provided by your ISP
(optional).
Enter your PPTP username.
Enter your PPTP password and
password in the next box.
Reconnect Mode:
Maximum Idle
Time:
Select either Always-on, On-Demand, or
Manual.
Enter a maximum idle time during which the
Internet connection is maintained during
inactivity. To disable this feature, enable Autoreconnect.
33D-Link DIR-412 User Manual
Section 3 - Configuration
DNS Servers:
MTU:
MAC Address:
Enter the Primary and Secondary DNS Server Addresses (Static PPTP only).
Maximum Transmission Unit - you may need to change the MTU for optimal performance with your specic ISP. 1400 is the
default MTU.
The default MAC Address is set to the Internet port’s physical interface MAC address on the Broadband Router. It is not
recommended that you change the default MAC address unless required by your ISP. You can use the Clone Your PC’s
MAC Address button to replace the Internet port’s MAC address with the MAC address of your Ethernet card.
34D-Link DIR-412 User Manual
Section 3 - Configuration
Manual Configuration (WAN Mode)
L2TP (Username/Password)
Choose L2TP (Username/Password) from the My Internet Connection is drop-down menu if your ISP uses an L2TP
connection. Your ISP will provide you with a username and password. This option is typically used for DSL services.
Address Mode:
L2TP IP Address:
L2TP Subnet
Mask:
L2TP Gateway IP
Address:
L2TP Server IP
Address:
User Name:
Password:
Select Static IP if your ISP assigned you
the IP address, subnet mask, gateway, and
DNS server addresses. In most cases, select
Dynamic IP.
Enter the L2TP IP address supplied by your ISP
(Static IP only).
Enter the Subnet Mask supplied by your ISP
(Static L2TP only).
Enter the Gateway IP address provided by your
ISP (Static L2TP only).
Enter the Server IP address provided by your
ISP (optional).
Enter your L2TP user name.
Enter your L2TP password and then retype the
password in the next box.
Reconnect Mode:
Select either Always-on, On-Demand, or
Manual.
35D-Link DIR-412 User Manual
Section 3 - Configuration
Maximum Idle
Time:
DNS Servers:
MTU:
MAC Address:
Enter a maximum idle time during which the Internet connection is maintained during inactivity. To disable this feature, enable
Auto-reconnect.
Enter the Primary and Secondary DNS Server Addresses (Static L2TP only).
Maximum Transmission Unit - you may need to change the MTU for optimal performance with your specic ISP. 1400 is the
default MTU.
The default MAC Address is set to the Internet port’s physical interface MAC address on the Broadband Router. It is not
recommended that you change the default MAC address unless required by your ISP. You can use the Clone Your PC’s
MAC Address button to replace the Internet port’s MAC address with the MAC address of your Ethernet card.
36D-Link DIR-412 User Manual
Section 3 - Configuration
Manual Configuration (WAN Mode)
Russia PPTP (Dual Access)
Choose Russia PPTP (Dual Access) from the My Internet Connection is drop-down menu if your ISP uses a PPTP
connection. Your ISP will provide you with a username and password. This option is typically used for DSL services.
Address Mode:
PPTP IP Address:
PPTP Subnet
Mask:
PPTP Gateway IP
Address:
PPTP Server IP
Address:
Username:
Password:
Select Static IP if your ISP assigned you
the IP address, subnet mask, gateway, and
DNS server addresses. In most cases, select
Dynamic IP.
Enter the IP address (Static PPTP only).
Enter the Subnet Mask (Static PPTP only).
Enter the Gateway IP address provided by your
ISP (Static PPTP only).
Enter the Server IP provided by your ISP
(optional).
Enter your PPTP username. Check the MPPE
box to enable the MPPE encryption protocol
between the DIR-412 and PPTP server.
Enter your PPTP password and then retype the
password in the next box.
Reconnect Mode:
Select either Always-on, On-Demand, or
Manual.
37D-Link DIR-412 User Manual
Section 3 - Configuration
Maximum Idle
Time:
DNS Servers:
MTU:
MAC Address:
Enter a maximum idle time during which the Internet connection is maintained during inactivity. To disable this feature, enable
Auto-reconnect.
Enter the Primary and Secondary DNS Server Addresses (Static PPTP only).
Maximum Transmission Unit - you may need to change the MTU for optimal performance with your specic ISP. 1400 is the
default MTU.
The default MAC Address is set to the Internet port’s physical interface MAC address on the Broadband Router. It is not
recommended that you change the default MAC address unless required by your ISP. You can use the Clone Your PC’s
MAC Address button to replace the Internet port’s MAC address with the MAC address of your Ethernet card.
38D-Link DIR-412 User Manual
Section 3 - Configuration
Manual Configuration (WAN Mode)
Russia PPPoE (Dual Access)
Choose Russia PPoE (Dual Access) from the My Internet Connection is drop-down menu if your ISP uses a PPPoE
connection. Your ISP will provide you with a username and password. This option is typically used for DSL services.
Address Mode:
IP Address:
User Name:
Password:
Service Name:
Reconnect
Mode:
Maximum Idle
Time:
Select Static if your ISP assigned you the IP
address, subnet mask, gateway, and DNS
server addresses. In most cases, select
Dynamic.
Enter the IP address (Static PPPoE only).
Enter your PPPoE user name. Check the MPPE
box to enable the MPPE encryption protocol
between the DIR-412 and PPPoE server.
Enter your PPPoE password and then retype
the password in the next box.
Enter the ISP Service Name (optional).
Select either Always-on, On-Demand, or
Manual.
Enter a maximum idle time during which the
Internet connection is maintained during
inactivity. To disable this feature, enable
Auto-reconnect.
39D-Link DIR-412 User Manual
Section 3 - Configuration
DNS Mode:
MAC Address:
MTU:
Click the Receive DNS from ISP radio button if you want to dynamically receive the DNS Server IP addresses from your
ISP. To manually enter the DNS Server IP addresses, click the Enter DNS Manually radio button and enter the DNS Server
IP addresses in the Primary DNS Server and Secondary DNS Server elds.
The default MAC Address is set to the Internet port’s physical interface MAC address on the Broadband Router. It is not
recommended that you change the default MAC address unless required by your ISP. You can use the Clone Your PC’s
MAC Address button to replace the Internet port’s MAC address with the MAC address of your Ethernet card.
Maximum Transmission Unit - you may need to change the MTU for optimal performance with your specic ISP. 1492 is the
default MTU.
40D-Link DIR-412 User Manual
Section 3 - Configuration
Wireless Settings
If you want to congure the wireless settings on your
router using the wizard, click Wireless Network Setup
Wizard and refer to “Wireless Connection Setup
Wizard” on page 75.
Click Add Wireless Device with WPS if you want to
add a wireless device using Wi-Fi Protected Setup
(WPS) and refer to “Add Wireless Device with WPS
Wizard” on page 78.
If you want to manually congure the wireless settings
on your router click Manual Wireless Network Setup
and refer to the next page.
41D-Link DIR-412 User Manual
Section 3 - Configuration
Enable Auto
Manual Wireless Network Setup
Enable Wireless:
Wireless Network
Name:
Channel Selection:
Wireless Channel:
Transmission
Rate:
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. Click Add New to create your
own time schedule to enable the wireless function.
Service Set Identier (SSID) is the name of your
wireless network. Create a name using up to 32
characters. The SSID is case-sensitive.
The Auto Channel Scan setting can be selected to
allow the DIR-412 to choose the channel with the least
amount of interference.
Indicates the channel setting for the DIR-412. 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.
If you enable Auto Channel Scan, this option will be
greyed out.
Select the transmit rate. It is strongly suggested to
select Best (Auto) for best performance.
WMM Enable:
WMM (Wi-Fi Multimedia) is QoS for your wireless
network. Check this box to improve the quality of video
and voice applications for your wireless clients. This
feature is not available in 802.11n congurations.
42D-Link DIR-412 User Manual
Section 3 - Configuration
Enable Hidden
Wireless:
Wireless Security:
Enabling Hidden Mode is another way to secure your network. With this option enabled, no wireless clients will
be able to see your wireless network when they perform a scan to see what’s available. In order for your wireless
devices to connect to your router, you will need to manually enter the Wireless Network Name on each device.
Refer to Section 4- Wireless security for more information regarding wireless security.
43D-Link DIR-412 User Manual
Section 3 - Configuration
Network Settings
This section will allow you to change the local network settings of the router and to congure the DHCP settings.
Router IP Address:
Default Subnet Mask:
Device Name:
Local Domain Name:
Enable DNS Relay:
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 conguration utility.
Enter the Subnet Mask. The default subnet mask is
255.255.255.0.
Enter the Device name (set to “DIR-412” by default).
Enter the Domain name (Optional).
Uncheck the box to transfer the DNS server information
from your ISP to your computers. If checked, your
computers will use the router for a DNS server.
44D-Link DIR-412 User Manual
Section 3 - Configuration
DHCP Server Settings
DHCP stands for Dynamic Host Control Protocol. The DIR-412 has a built-in DHCP server. The DHCP Server will
automatically assign an IP address to the computers on the LAN/private network. Be sure to set your computers to be
DHCP clients by setting their TCP/IP settings to “Obtain an IP Address Automatically.” When you turn your computers
on, they will automatically load the proper TCP/IP settings provided by the DIR-412. The DHCP Server will automatically
allocate an unused IP address from the IP address pool to the requesting computer. You must specify the starting and
ending address of the IP address pool.
Enable DHCP
Server:
DHCP IP Address
Range:
DHCP Lease Time:
Check this box to enable the DHCP server on your
router. Uncheck to disable this function.
Enter the starting and ending IP addresses for
the DHCP server’s IP assignment.
Note: If you statically (manually) assign IP
addresses to your computers or devices, make
sure the IP addresses are outside of this range
or you may have an IP conict.
The length of time for the IP address lease. Enter the Lease time in minutes.
45D-Link DIR-412 User Manual
Section 3 - Configuration
DHCP Reservation
If you want a computer or device to always have the same IP address assigned, you can create a DHCP reservation.
The router will assign the IP address only to that computer or device.
Congure the parameters, as described below, to create a new DHCP Reservation.
Note: This IP address must be within the DHCP IP Address Range.
DHCP
Reservations List:
Number of
Dynamic DHCP
Clients:
Computer Name:
IP Address:
MAC Address:
Displays a list of the DHCP reservations that have been congured
on the router.
In this section, you can see information about the LAN devices that
are currently being leased IP addresses.
Enter the computer name or select a computer name from the
drop-down menu on the right-hand side and click <<.
Enter the IP address you want to assign to the computer or device.
This IP Address must be within the DHCP IP Address Range.
Enter the MAC address of the computer or device.
When you have nished conguring the above settings, check the boxes next to the DHCP Reservation entries you
want to add to the DHCP Reservations List and click the Save Settings button at the top or bottom of the window to
save your entries and activate your reservations.
46D-Link DIR-412 User Manual
Section 3 - Configuration
Virtual Server
The DIR-412 can be congured as a virtual server so that remote users accessing Web or FTP services via the public
IP address can be automatically redirected to local servers in the LAN (Local Area Network).
The DIR-412 rewall feature lters out unrecognized packets to protect
your LAN network so all computers networked with the DIR-412 are
invisible to the outside world. If you wish, you can make some of the
LAN computers accessible from the Internet by enabling Virtual Server.
Depending on the requested service, the DIR-412 redirects the external
service request to the appropriate server within the LAN network.
The DIR-412 is also capable of port-redirection meaning incoming
trafc to a particular port may be redirected to a different port on the
server computer.
Each virtual service that is created will be listed at the bottom of the
screen in the Virtual Servers List. Pre-dened virtual services are
already listed in the table. You may use them by enabling them and
assigning the server IP to use that particular virtual service.
For a list of ports for common applications, please visit the Support
section for more information.
47D-Link DIR-412 User Manual
Section 3 - Configuration
The Virtual Server feature allows you to open a single port. If you would like to open a range of ports, refer to the next
page. Congure the parameters, as described below, to create a new Virtual Server entry.
Name:
IP Address:
Public Port/
Private Port:
Protocol Type:
Enter a name for the rule or select an application
from the drop-down menu. Select an application
and click << to populate the elds.
Enter the IP address of the computer on your
local network that you want to allow the incoming
service to. If your computer is receiving an IP
address automatically from the router (DHCP),
you computer will be listed in the “Computer
Name” drop-down menu. Select your computer
and click <<.
Enter the port number that you want to open next
to Private Port and Public Port. The private and
public ports are usually the same. The private
port is the port being used by the application on
the computer within your local network, and the
public port is the port seen from the Internet side.
Select TCP, UDP, or Both from the drop-down menu.
Inbound Filter:
Schedule:
Select Allow All (most common) or a created Inbound lter. You may create your own inbound lters in the Advanced >
Inbound Filter page.
The schedule of time when the Virtual Server Rule will be enabled. The schedule may be set to Always, which will allow the
particular service to always be enabled. You can create your own times in the Tools > Schedules section.
48D-Link DIR-412 User Manual
Section 3 - Configuration
Port Forwarding
Port Forwarding is a feature that allows you to open a single port or a range of ports and redirect the data received
through those ports to a single PC on your network.
Name:
IP Address:
Public Port/
Private Port:
Traffic Type:
Enter a name for the rule or select an application
from the drop-down menu. Select an application
and click << to populate the elds.
Enter the IP address of the computer on your
local network that you want to allow the incoming
service to. If your computer is receiving an IP
address automatically from the router (DHCP),
you computer will be listed in the “Computer
Name” drop-down menu. Select your computer
and click <<.
Enter the range of ports that you want to open
next to the Private Port and Public Port elds.
The private and public ports are usually the
same. The private ports are the ports being
used by the application on the computer within
your local network, and the public ports are the
ports seen from the Internet side.
Use the drop-down menu to select whether
TCP, UDP, or All types of trafc are being used
for the port forwarding rule.
Schedule:
Select a schedule for when the Port Forwarding
Rule will be enabled. The schedule may
be se t to Al w a y s , which will allow the
particular service to always be enabled.
You ca n create yo u r own ti m e s in th e
Tools > Schedules section.
49D-Link DIR-412 User Manual
Section 3 - Configuration
Application Rules
Some applications require multiple connections, such as Internet gaming, video conferencing, Internet telephony and
others. These applications have difculties working through NAT (Network Address Translation). Special Applications
makes some of these applications work with the DIR-412. If you need to run applications that require multiple connections,
specify the port normally associated with an application in the “Trigger Port” eld, select the protocol type as TCP or
UDP, then enter the rewall (public) ports associated with the trigger port to open them for inbound trafc.
The DIR-412 provides some predened applications in the table on the bottom of the web page. Select the application
you want to use and enable it.
Name:
Trigger:
Traffic Type:
Firewall:
Traffic Type:
Schedule:
Enter a name for the rule. You may select a
pre-dened application from the drop-down
menu and click <<.
This is the port used to trigger the application. It
can be either a single port or a range of ports.
Select the protocol of the trigger port (TCP,
UDP, or All).
This is the port number on the Internet side that
will be used to access the application. You may
dene a single port or a range of ports. You
can use a comma to add multiple ports or port
ranges.
Select the protocol of the rewall port (TCP,
UDP, or All).
Select a schedule for when the Application Rule
will be enabled. If you do not see the schedule
you need in the list of schedules, go to the
Tools -> Schedules screen and create a new
schedule.
50D-Link DIR-412 User Manual
Section 3 - Configuration
QoS Engine
The QoS Engine option helps improve your network gaming performance by prioritizing applications. By default the
QoS Engine settings are disabled and application priority is not classied automatically.
Enable QoS Engine:
Automatic Uplink
Speed:
Measured Uplink
Speed:
Manual Uplink
Speed:
Connection Type:
This option is disabled by default. Enable this option for
better performance and experience with online games and
other interactive applications, such as VoIP.
This option will allow your router to automatically determine
the uplink speed of your Internet connection.
This displays the detected uplink speed.
The speed at which data can be transferred from the
router to your ISP. This is determined by your ISP. ISP’s
offer speed as a download/upload pair. For example,
1.5Mbits/284Kbits. Using this example, you would enter
284. Alternatively you can test your uplink speed with a
service such as www.dslreports.com.
This option allows you to select your connection type. Users can select “auto-detect” or choose the xDSL or cable networks
if they know.
Detected xDSL or
Other Frame Relay
Network:
This displays if xDSL or another type of frame relay network has been detected. The DIR-412 can detect the network and
the user can conrm this.
51D-Link DIR-412 User Manual
Section 3 - Configuration
Network Filters
Use MAC (Media Access Control) Filters to allow or deny LAN (Local Area Network) computers by their MAC addresses
from accessing the Network. You can either manually add a MAC address or select the MAC address from the list of
clients that are currently connected to the Broadband Router.
Configure MAC
Filtering:
MAC Address:
DHCP Client:
Schedule:
Select Turn MAC Filtering Off, allow MAC addresses
listed below, or deny MAC addresses listed below
from the drop-down menu.
Enter the MAC address you would like to lter.
To nd the MAC address on a computer, please refer
to the Networking Basics section in this manual.
Select a DHCP client from the drop-down menu and
click << to copy the MAC Address from the DHCP
client.
Select a schedule for when the Network Filter will be
enabled.The user can click the New Schedule button
to bring up the “Schedule Webpage” to congure a
new schedule.
52D-Link DIR-412 User Manual
Section 3 - Configuration
Website Filters
Website Filters are used to allow you to set up a list of allowed Web sites that can be used by multiple users through
the network. To use this feature select to Allow or Deny, enter the domain or website and click Add, and then click
Save Settings. You must also select Apply Web Filter under the Access Control section (page 40).
Configure Website
Filter Below:
Website URL:
Schedule:
Select Deny or Allow computers access to
only these sites.
Enter the URLs that you want to allow or deny.
Use the drop-down menu to select the schedule
for the Network Filter rule. Click the New
Schedule button to bring up the “Schedule
Webpage” to congure the new schedule.
53D-Link DIR-412 User Manual
Section 3 - Configuration
Firewall Settings
A rewall protects your network from the outside world. The D-Link DIR-412 offers a rewall type functionality. The SPI feature helps
prevent cyber attacks. Sometimes you may want a computer exposed to the outside world for certain types of applications. If you choose
to expose a computer, you can enable DMZ. DMZ is short for Demilitarized Zone. This option will expose the chosen computer completely
to the outside world.
Enable SPI:
DMZ Host:
Firewall Rules:
SPI (Stateful Packet Inspection, also known as dynamic packet
ltering) helps to prevent cyber attacks by tracking more state per
session. It validates that the trafc passing through the session
conforms to the protocol.
Check the Enable DMZ box and specify the IP address of the
computer on the LAN that you want to have unrestricted Internet
communication in the DMZ IP Address eld. Use the drop-down
menu to specify a host that currently has a DHCP lease from the
DIR-412. If this computer has obtained its IP address automatically
using DHCP, be sure to make a static reservation on the System >
Network Settings page so that the IP address of the DMZ machine
does not change.
Use this section to create rules that deny or allow trafc from passing
through the device. See the following page for information on how to
create rewall rules.
54D-Link DIR-412 User Manual
Section 3 - Configuration
Firewall Rules
To create a rewall rule, congure the parameters as described below:
Name:
Action:
Interface:
Protocol:
Enter a name for the rewall rule.
Use the drop-down menu to specify if the router
should Allow or Deny traffic matching the
rewall rule.
Use the drop-down menus to select the Source
and Destination interfaces for the Firewall Rule
Use the IP Address fields next to each
Interface drop-down menu to specify the IP
address ranges for the Source/Destination
interfaces.
The rst host in the IP address range should
be entered in the top eld and the last host in
the IP address range should be entered in the
eld beneath for boththe Source/Destination
intefaces.
Use the drop-down menu to select the protocol
that will be used for the rewall rule (TCP, UDP,
ICMP, or ALL).
55D-Link DIR-412 User Manual
Section 3 - Configuration
Port Range:
Schedule:
Enter the range of ports that the rewall rule will apply to.
The rst port in the port range should be entered in the top eld and the last host in the port range should be entered in the
eld beneath.
Use the drop-down menu to select the schedule for the Network Filter rule. Click the New Schedule button to bring up the
“Schedule Webpage” to congure the new schedule.
56D-Link DIR-412 User Manual
Section 3 - Configuration
Advanced Wireless Settings
Transmit Power:
Beacon Period:
RTS Threshold:
Fragmentation:
DTIM Interval:
Preamble Type:
Set the transmit power of the antennas.
Beacons are packets sent by an Access Point to
synchronize a wireless network. Specify a value. 100
is the default setting and is recommended.
This value should remain at its default setting of 2432.
If inconsistent data ow is a problem, only a minor
modication should be made.
The fragmentation threshold, which is specied in bytes,
determines whether packets will be fragmented. Packets
exceeding the 2346 byte setting will be fragmented
before transmission. 2346 is the default setting.
(Delivery Trafc Indication Message) 1 is the default
setting. A DTIM is a countdown informing clients of the
next window for listening to broadcast and multicast
messages.
Select Short or Long Preamble. The preamble denes the length of the CRC block (Cyclic Redundancy Check is a common
technique for detecting data transmission errors) for communication between the wireless router and the roaming wireless
network adapters. Note: High network trafc areas should use the Short Preamble type.
Wireless Mode:
Short Guard
Interval:
Use the drop-down menu to selec the wireless modes you want to enable on the router. The available options are 802.11n
only, 802.11 Mixed(g/b), and 802.11 Mixed(n/g/b).
Check this box to reduce the guard interval time therefore increasing the data capacity. However, it’s less reliable and may
create higher data loss.
57D-Link DIR-412 User Manual
Section 3 - Configuration
Wi-Fi Protected Setup
Wi-Fi Protected
Setup:
PIN Settings:
Add Wireless
Station:
Check this box to enable the function
Use the buttons to generate a new PIN or Reset the PIN
to Default settings.
Click the button to start the wizard that sets up the WPA
function. Please refer to Section 4-Wireless security “Add
wireless device with WPA wizard” for more information.
58D-Link DIR-412 User Manual
Section 3 - Configuration
Advanced Network Settings
UPnP:
WAN Ping:
WAN Port Speed:
Multicast
Streams:
To use the Universal Plug and Play (UPnP™) feature
check the Enable UPNP box. UPNP provides
compatibility with networking equipment, software
and peripherals.
Unchecking the box will not allow the DIR-412 to
respond to pings. Blocking the Ping may provide some
extra security from hackers. Check the box to allow
the Internet port to be “pinged”.
You may set the port speed of the Internet port to
10Mbps, 100Mbps, or auto. Some older cable or
DSL modems may require you to set the port speed
to 10Mbps.
Check the Enable Multicast Streams box to allow
multicast trafc to pass through the router from the
Internet.
Check the Wireless Enhance Mode box to enable
the router to forward all multicast streams from the
Internet to the wireless station using a unicast stream.
This feature helps improve the quality of multimedia
applications for wireless users.
UPnP
Internet Ping Block
Internet Port Speed
Multicast Streams
59D-Link DIR-412 User Manual
Section 3 - Configuration
Administrator Settings
This page will allow you to change the Administrator and User passwords. You can also enable Remote Management.
There are two accounts that can access the management interface through the web browser. The accounts are admin
and user. Admin has read/write access while user has read-only access. User can only view the settings but cannot
make any changes. Only the admin account has the ability to change both admin and user account passwords.
Admin Password:
Enable Graphical
Authentication:
Enable Remote
Management:
Remote Admin
Port:
Enter and conrm a new password for the Administrator
Login Name. The administrator can make changes to
the settings.
Check this box to enable graphical authentication. The
device supports this function to prevent phishing.
Remote management allows the DIR-412 to be
configured from the Internet by a web browser. A
username and password is still required to access the
Web-Management interface. In general, only a member
of your network can browse the built-in web pages to
perform Administrator tasks. This feature enables you to
perform Administrator tasks from the remote (Internet)
host.
The port number used to access the DIR-412.
Example: http://x.x.x.x:8080 whereas x.x.x.x is the
Internet IP address of the DIR-412 and 8080 is the port
used for the Web Management interface.
Remote Management
Change Password
60D-Link DIR-412 User Manual
Section 3 - Configuration
Time Settings
The Time Conguration option allows you to congure, update, and maintain the correct time on the internal system
clock. From this section you can set the time zone that you are in and set the Time Server. Daylight Saving can also
be congured to automatically adjust the time when needed.
Time Zone:
Enable Daylight
Saving:
Sync your
Computer’s Time
Settings:
Autromatic
Time and Date
Configuration:
NTP Server Used:
Select the Time Zone from the drop-down menu.
Check the box to enable Daylight Saving time.
Click this button to set the device’s time the same
to local PC.
Check the box to enable the device to automatically
synchronize with a D-Link NTP Server. NTP stands
for Network Time Protocol. NTP synchronizes
computer clock times in a network of computers.
This will only connect to a server on the Internet,
not a local server.
Select one of the D-Link NTP Servers from the
drop-down menu. The DIR-412 will then synchronize
it’s clock to be the same time as the D-Link Internet
time server. Click the Update Now button to
synchronize with the D-Link Internet time server
immediatley.
Set the Time and
Date Manually:
Click the Save Settings button to save any changes made.
To manually input the time, use the drop-down
menus to enter the values in these elds for the
Year, Month, Day, Hour, Minute, and Second.
61D-Link DIR-412 User Manual
Section 3 - Configuration
E-mail Settings
The Email feature can be used to send the system log les, router alert messages, and rmware update notication
to your e-mail address.
From Email
Address:
To Email Address:
Email Subject:
SMTP Server
Address:
Account Name:
Password:
Send Mail Now:
This e-mail address will appear as the sender when
you receive a log le or rmware upgrade notication
via e-mail.
Enter the e-mail address where you want the e-mail sent.
Enter a subject for the e-mails that will be sent from the
Router.
Enter the IP address of the SMTP server for sending
e-mail.
Enter your account name for sending e-mail.
Enter the password associated with the account.
Re-type the password associated with the account in
the Verify Password eld.
Click the Send Mail Now button to send a test message from the Router to the specied e-mail address.
62D-Link DIR-412 User Manual
Section 3 - Configuration
System Settings
Save Settings to
Local Hard Drive:
Load Settings
from Local Hard
Drive:
Restore to Factory
Default Settings:
Reboot the
Device:
Use this option to save the current router conguration
settings to a le on the hard disk of the computer you
are using. First, click the Save button. You will then
see a le dialog, where you can select a location and
le name for the settings.
Use this option to load previously saved router
conguration settings. First, use the Browse control
to nd a previously save le of conguration settings.
Then, click the Load button to transfer those settings
to the router.
Click the Restore button to restore all conguration
settings back to the settings that were in effect at the
time the router was shipped from the factory. Any
settings that have not been saved will be lost, including
any rules that you have created. If you want to save
the current router conguration settings, use the Save
button above.
Click to reboot the router.
Clear Language
Pack:
Click the Clear button to restore the device back to the
English interface version and remove other languages
installed for the system web pages.
63D-Link DIR-412 User Manual
Section 3 - Configuration
Update Firmware
You can upgrade the rmware of the Router here. Make sure the rmware you want to use is on the local hard drive of
the computer. Click on Browse to locate the rmware le to be used for the update. Please check the D-Link support
site for rmware updates at http://support.dlink.com. You can download rmware upgrades to your hard drive from the
D-Link support site.
Firmware
Information:
Firmware
Upgrade:
Language Pack
Upgrade:
Displays the current firmware version and date.
You can also check the availability of a new rmware
version online. If so, download the new rmware to
your hard drive.
After you have downloaded the new rmware, click
the Browse control to locate the rmware update
on your hard drive. Click Upload to complete the
rmware upgrade.
This function allows the user to transfer the language
of the GUI from English to their own language by
upgrading the language pack. Click the Browse
control to locate the desired language pack on your
hard drive. Click Upload to complete the language
pack upgrade.
64D-Link DIR-412 User Manual
Section 3 - Configuration
DDNS
The DDNS feature allows you to host a server (Web, FTP, Game Server, etc…) using a domain name that you have
purchased (www.whateveryournameis.com) with your dynamically assigned IP address. Most broadband Internet
Service Providers assign dynamic (changing) IP addresses. Using a DDNS service provider, your friends can enter in
your domain name to connect to your server no matter what your IP address is.
Enable DDNS:
Server Address:
Host Name:
User Account:
Password:
DDNS Account
Testing:
Dynamic Domain Name System is a method of
keeping a domain name linked to a changing IP
Address. Check the box to enable DDNS.
Choose your DDNS provider from the drop down
menu.
Enter the Host Name that you registered with your
DDNS service provider.
Enter the User Name for your DDNS account.
Enter the Password for your DDNS account.
This is to test if the DDNS account is valid for use.
65D-Link DIR-412 User Manual
Section 3 - Configuration
System Check
The System Check feature allows you to verify the physical connectivity on both the LAN and Internet interface.
Ping Test:
Ping Results:
The Ping Test is used to send Ping packets to
test if a computer is on the Internet. Enter the IP
Address that you wish to Ping, and click Ping.
The results of your ping attempts will be displayed
here.
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Section 3 - Configuration
Schedules
Name:
Days:
Time:
Add:
Schedule Rules
List:
Enter a name for your new schedule.
Select a day, a range of days, or All Week to
include every day.
Check All Day - 24hrs or use the Start Time
and End Time elds to specify the start and
end time for your schedule.
Click Add to add your schedule.
The list of schedules will be listed here. Click
the Edit icon to make changes or click the
Delete icon to remove the schedule.
67D-Link DIR-412 User Manual
Section 3 - Configuration
Device Information
This page displays the current information for the DIR-412. It will display the LAN, WAN (Internet), and Wireless
information.
If your Internet connection is set up for a Dynamic IP address then a
Release button and a Renew button will be displayed. Use Release
to disconnect from your ISP and use Renew to connect to your ISP.
If your Internet connection is set up for PPPoE, PPTP, L2TP, Russia
PPTP, or Russia PPPoE a Connect button and a Disconnect button
will be displayed. Use Disconnect to drop the Internet connection and
use Connect to establish the Internet connection.
See the following for more information.
General:
3G WAN/WAN:
LAN:
Wireless LAN:
Displays the router’s time and rmware version.
Displays the MAC address and the public IP
settings for the router.
Displays the MAC address and the private (local)
IP settings for the router.
Displays the wireless MAC address and your
wireless settings such as SSID and Channel.
68D-Link DIR-412 User Manual
Section 3 - Configuration
Logs
The router automatically logs (records) events of possible interest in it’s internal memory. If there isn’t enough internal
memory for all events, logs of older events are deleted but logs of the latest events are retained. The Logs option allows
you to view the router logs. You can dene what types of events you want to view and the level of the events to view.
This router also has external Syslog Server support so you can send the log les to a computer on your network that
is running a Syslog utility.
Log Type:
Log Level:
First Page:
Last Page:
Previous:
Next:
Clear:
Use the radio buttons to choose the types of
messages that should be displayed from the log.
System, Firewall & Security, and Router Status
messages can be selected.
There are three levels of message importance:
Informational, Warning, and Critical. Use the radio
buttons to select the levels that should be displayed
in the log.
Click this button to view the rst page of the log le.
Click this button to view the last page of the log le.
Click this button to view the previous page of the log
le.
Click this button to view the next page of the log le.
Clears all of the log contents.
Link to Log
Settings:
The user can click the button to “ link to log settings”
and save the logs to a local hard drive or to a Syslog
server.
69D-Link DIR-412 User Manual
Section 3 - Configuration
Statistics
The screen below displays the Trafc Statistics. Here you can view the amount of packets that pass through the DIR-412
on the Internet, LAN and Wireless connections. The trafc counter will reset if the device is rebooted.
70D-Link DIR-412 User Manual
Section 3 - Configuration
Internet Sessions
The Internet Sessions page displays full details of active Internet sessions through your router. An Internet session is
a conversation between a program or application on a LAN-side computer and a program or application on a WANside computer.
NAPT Sessions:
NAPT Active
Sessions:
Displays information about the NAPT Sessions
on the router. Including the number of TCP
Sessions, the number of UDP Sessions, and
the combined number TCP and UDP NAPT
Sessions.
Displays the IP address of the local application
and the TCP/UDP packets being sent by
the source IP address for each NAPT Active
Session.
71D-Link DIR-412 User Manual
Section 3 - Configuration
Wireless
The wireless client table displays a list of current connected wireless clients. This table also displays the connection
time and MAC address of the connected wireless clients.
72D-Link DIR-412 User Manual
Section 3 - Configuration
Support
73D-Link DIR-412 User Manual
Section 4 - Security
Wireless Security
This section will show you the different levels of security you can use to protect your data from intruders. The DIR-412
offers the following types of security:
• WPA2 (Wi-Fi Protected Access 2) • WPA2-PSK(Pre-Shared Key)
• WPA (Wi-Fi Protected Access) • WPA-PSK (Pre-Shared Key)
What is WPA?
WPA, or Wi-Fi Protected Access, is a Wi-Fi standard that was designed to improve the security features of WEP (Wired
Equivalent Privacy).
The 2 major improvements over WEP:
• Improved data encryption through the Temporal Key Integrity Protocol (TKIP). TKIP scrambles the keys
using a hashing algorithm and, by adding an integrity-checking feature, ensures that the keys haven’t
been tampered with. WPA2 is based on 802.11i and uses Advanced Encryption Standard (AES) instead
of TKIP.
• User authentication, which is generally missing in WEP, through the extensible authentication protocol
(EAP). WEP regulates access to a wireless network based on a computer’s hardware-specic MAC
address, which is relatively simple to be sniffed out and stolen. EAP is built on a more secure public-key
encryption system to ensure that only authorized network users can access the network.
WPA-PSK/WPA2-PSK uses a passphrase or key to authenticate your wireless connection. The key is an alpha-numeric
password between 8 and 63 characters long. The password can include symbols (!?*&_) and spaces. This key must
be the exact same key entered on your wireless router or access point.
WPA/WPA2 incorporates user authentication through the Extensible Authentication Protocol (EAP). EAP is built on a
more secure public key encryption system to ensure that only authorized network users can access the network.
74D-Link DIR-412 User Manual
Section 4 - Security
Wireless Connection Setup Wizard
To run the security wizard, browse to the Setup page and then click the Wireless Network Setup Wizard button.
75D-Link DIR-412 User Manual
Section 4 - Security
Enter the SSID (Service Set Identier). The SSID is the name of
your wireless network. Create a name using up to 32 characters.
The SSID is case-sensitive.
If you would like the router to automatically assign a network
key to your network, click the Automatically assign a network
key radio button.
Click Next to continue.
Alternativley, click the Manually assign a network key radio
button to create your own network key.
Click Next to continue.
The following window appears if you selected the option to
manually create your own network key.
Type a password that you would like to use for wireless security
in the Wireless Security Password eld.
Click Next to continue.
76D-Link DIR-412 User Manual
Section 4 - Security
The following window appears to indicate that the Wireless
Connection Setup Wizard is complete.
If you selected the option that automatically generated a
network key, the automatically generated key will display next
to the Pre-Shared Key eld.
If you manually specied a network key, the Wireless Security
Password that you specied will display next to the Pre-Shared
Key eld.
Click Save to nish the Security Wizard.
77D-Link DIR-412 User Manual
Section 4 - Security
Add Wireless Device with WPS Wizard
From the Setup > Wireless Settings screen, click Add
Wireless Device with WPS.
Select Auto to add a wireless client using WPS (Wi-Fi Protected
Setup). Once you select Auto and click Connect, you will have
a 120 second time limit to apply the settings to your wireless
client(s) and successfully establish a connection.
If you select Manual, a settings summary screen will appear.
Write down the security key and enter this on your wireless
clients.
PIN: Select this option to use PIN method. In order to use this
method you must know the wireless client’s 8 digit PIN and
click Connect.
PBC: Select this option to use PBC (Push Button) method to
add a wireless client. Click Connect.
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Section 4 - Security
Configure WPA-Personal (PSK)
It is recommended to enable encryption on your wireless router before your wireless network adapters. Please establish
wireless connectivity before enabling encryption. Your wireless signal may degrade when enabling encryption due to
the added overhead.
1. Log into the web-based conguration by opening a web browser
and entering the IP address of the router (192.168.0.1). Click on
Setup and then click Wireless Settings on the left side and then
click the Manual Wireless Network Setup button.
2. Select Enable WPA/WPA2 Wireless Security (enhanced) from
the Security Mode drop-down menu.
3. Select Auto(TKIP/AES), TKIP, or AES from the Cipher Type
drop-down menu. If you have wireless clients that use both types,
use TKIP/AES.
4. Select PSK from the PSK / EAP drop-down menu.
5. Enter a key (passphrase) in the Network Key eld. The key is entered as a pass-phrase in either ASCII or HEX format.
If using ASCII format the pass-phrase must be between 8-63 characters. If using HEX format the pass-phrase must
be 64 characters. The ASCII or HEX pass-phrase must be the same at both ends of the wireless connection.
6. Click Save Settings to save your settings. If you are conguring the router with a wireless adapter, you will lose
connectivity until you enable WPA-PSK on your adapter and enter the same passphrase as you did on the router.
79D-Link DIR-412 User Manual
Section 4 - Security
Configure WPA-Enterprise (RADIUS)
It is recommended to enable encryption on your wireless router before your wireless network adapters. Please establish
wireless connectivity before enabling encryption. Your wireless signal may degrade when enabling encryption due to
the added overhead.
1. Log into the web-based conguration by opening a web browser
and entering the IP address of the router (192.168.0.1). Click on
Setup and then click Wireless Settings on the left side and then
click the Manual Wireless Network Setup button.
2. Select Enable WPA/WPA2 Wireless Security (Enhanced) from
the Security Mode drop-down menu.
3. Select Auto(TKIP/AES), TKIP, or AES from the Cipher Type
drop-down menu. If you have wireless clients that use both types,
use TKIP/AES.
4. Select EAP from the PSK / EAP drop-down menu.
5. Enter the IP Address of your RADIUS server in the RADIUS Server IP Address eld.
6. Enter the port you are using with your RADIUS server in the Port eld.
7. Enter the security key in the Shared Secret eld.
8. Click Save Settings to save your settings. If you are conguring the router with a wireless adapter, you will lose
connectivity until you enable WPA-Enterprise (RADIUS) on your adapter and enter the same passphrase as you did
on the router.
80D-Link DIR-412 User Manual
Section 5 - Connecting to a Wireless Network
Connect to a Wireless Network
Using Windows Vista
®
Windows Vista® users may use the built-in wireless utility. If you are using another company’s utility or Windows® 2000,
please refer to the user manual of your wireless adapter for help with connecting to a wireless network. Most utilities
will have a “site survey” option similar to the Windows Vista® utility as seen below.
If you receive the Wireless Networks Detected bubble, click
on the center of the bubble to access the utility.
or
Right-click on the wireless computer icon in your system tray
(lower-right corner next to the time). Select Connect to a
network.
The utility will display any available wireless networks in your
area. Click on a network (displayed using the SSID) and click
the Connect button.
If you get a good signal but cannot access the Internet,
check you TCP/IP settings for your wireless adapter. Refer
to the Networking Basics section in this manual for more
information.
81D-Link DIR-412 User Manual
Section 5 - Connecting to a Wireless Network
Configure WPA/WPA2
It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before conguring
your wireless adapter. If you are joining an existing network, you will need to know the security key or passphrase
being used.
1. Open the Windows Vista® Wireless Utility by right-clicking
on the wireless computer icon in your system tray (lower
right corner of screen). Select Connect to a network.
2. Highlight the wireless network (SSID) you would like to
connect to and click Connect.
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Section 5 - Connecting to a Wireless Network
3. Enter the same security key or passphrase that is on your router
and click Connect.
It may take 20-30 seconds to connect to the wireless network. If the
connection fails, please verify that the security settings are correct.
The key or passphrase must be exactly the same as on the wireless
router.
83D-Link DIR-412 User Manual
Section 5 - Connecting to a Wireless Network
Connect Using WCN 2.0
The router supports Wi-Fi protection, referred to as WCN 2.0 in Windows Vista®. The following instructions for setting
this up depends on whether you are using Windows Vista® to congure the router or third party software.
When you rst set up the router, Wi-Fi protection is disabled and uncongured. To enjoy the benets of Wi-Fi protection,
the router must be both enabled and congured. There are three basic methods to accomplish this: use Windows
Vista’s built-in support for WCN 2.0, use software provided by a third party, or manually congure.
If you are running Windows Vista®, log into the router and click the Enable checkbox in the Advanced > Wi-Fi Protected
Setup window. Use the Current PIN that is displayed in the PIN Settings section of Advanced > Wi-Fi Protected
Setup window or choose to click the Generate New PIN button or Reset PIN to Default button.
If you are using third party software to set up Wi-Fi Protection, carefully follow the directions. When you are nished,
proceed to the next section to set up the newly-congured router.
84D-Link DIR-412 User Manual
Section 5 - Connecting to a Wireless Network
Using Windows® XP
Windows® XP users may use the built-in wireless utility (Zero Conguration Utility). The following instructions are for
Service Pack 2 users. If you are using another company’s utility or Windows® 2000, please refer to the user manual
of your wireless adapter for help with connecting to a wireless network. Most utilities will have a “site survey” option
similar to the Windows® XP utility as seen below.
If you receive the Wireless Networks Detected bubble, click
on the center of the bubble to access the utility.
or
Right-click on the wireless computer icon in your system tray
(lower-right corner next to the time). Select View Available
Wireless Networks.
The utility will display any available wireless networks in your
area. Click on a network (displayed using the SSID) and click
the Connect button.
If you get a good signal but cannot access the Internet, check you
TCP/IP settings for your wireless adapter. Refer to the Networking
Basics section in this manual for more information.
85D-Link DIR-412 User Manual
Section 5 - Connecting to a Wireless Network
Configure WPA-PSK
It is recommended to enable WEP on your wireless router or access point before conguring your wireless adapter. If
you are joining an existing network, you will need to know the WEP key being used.
1. Open the Windows® XP Wireless Utility by right-clicking
on the wireless computer icon in your system tray
(lower-right corner of screen). Select View Available
Wireless Networks.
2. Highlight the wireless network (SSID) you would like to
connect to and click Connect.
86D-Link DIR-412 User Manual
Section 5 - Connecting to a Wireless Network
3. The Wireless Network Connection box will appear. Enter the
WPA-PSK passphrase and click Connect.
It may take 20-30 seconds to connect to the wireless network. If the
connection fails, please verify that the WPA-PSK settings are correct.
The WPA-PSK passphrase must be exactly the same as on the
wireless router.
87D-Link DIR-412 User Manual
Section 6 - Troubleshooting
Troubleshooting
This chapter provides solutions to problems that can occur during the installation and operation of the DIR-412. Read
the following descriptions if you are having problems. (The examples below are illustrated in Windows® XP. If you
have a different operating system, the screen shots on your computer will look similar to the following examples.)
1. Why can’t I access the web-based conguration utility?
When entering the IP address of the D-Link router (192.168.0.1 for example), you are not connecting to a website on
the Internet or have to be connected to the Internet. The device has the utility built-in to a ROM chip in the device itself.
Your computer must be on the same IP subnet to connect to the web-based utility.
• Make sure you have an updated Java-enabled web browser. We recommend the following:
• Internet Explorer 6.0 or higher
• Netscape 8 or higher
• Mozilla 1.7.12 (5.0) or higher
• Opera 8.5 or higher
• Safari 1.2 or higher (with Java 1.3.1 or higher)
• Camino 0.8.4 or higher
• Firefox 1.5 or higher
• Verify physical connectivity by checking for solid link lights on the device. If you do not get a solid link light, try using
a different cable or connect to a different port on the device if possible. If the computer is turned off, the link light may
not be on.
• Disable any Internet security software running on the computer. Software rewalls such as Zone Alarm, Black Ice,
Sygate, Norton Personal Firewall, and Windows® XP rewall may block access to the conguration pages. Check the
help les included with your rewall software for more information on disabling or conguring it.
88D-Link DIR-412 User Manual
Section 6 - Troubleshooting
• Congure your Internet settings:
• Go to Start > Settings > Control Panel. Double-click the Internet Options Icon. From the Security tab,
click the button to restore the settings to their defaults.
• Click the Connection tab and set the dial-up option to Never Dial a Connection. Click the LAN Settings
button. Make sure nothing is checked. Click OK.
• Go to the Advanced tab and click the button to restore these settings to their defaults. Click OK three
times.
• Close your web browser (if open) and open it.
• Access the web management. Open your web browser and enter the IP address of your D-Link router in the address
bar. This should open the login page for your the web management.
• If you still cannot access the conguration, unplug the power to the router for 10 seconds and plug back in. Wait
about 30 seconds and try accessing the conguration. If you have multiple computers, try connecting using a different
computer.
2. What can I do if I forgot my password?
If you forgot your password, you must reset your router. Unfortunately this process will change all your settings back
to the factory defaults.
To reset the router, locate the reset button (hole) on the rear panel of the unit. With the router powered on, use a
paperclip to hold the button down for 10 seconds. Release the button and the router will go through its reboot process.
Wait about 30 seconds to access the router. The default IP address is 192.168.0.1. When logging in, the username is
admin and leave the password box empty.
89D-Link DIR-412 User Manual
Section 6 - Troubleshooting
3. Why can’t I connect to certain sites or send and receive e-mails when connecting through my router?
If you are having a problem sending or receiving e-mail, or connecting to secure sites such as eBay, banking sites,
and Hotmail, we suggest lowering the MTU in increments of ten (Ex. 1492, 1482, 1472, etc).
Note: AOL DSL+ users must use MTU of 1400.
To nd the proper MTU Size, you’ll have to do a special ping of the destination you’re trying to go to. A destination
could be another computer, or a URL.
• Click on Start and then click Run.
• Windows® 95, 98, and Me users type in command (Windows® NT, 2000, and XP users type in cmd) and
press Enter (or click OK).
• Once the window opens, you’ll need to do a special ping. Use the following syntax:
ping [url] [-f] [-l] [MTU value]
Example: ping yahoo.com -f -l 1472
90D-Link DIR-412 User Manual
Section 6 - Troubleshooting
You should start at 1472 and work your way down by 10 each time. Once you get a reply, go up by 2 until you get a
fragmented packet. Take that value and add 28 to the value to account for the various TCP/IP headers. For example,
lets say that 1452 was the proper value, the actual MTU size would be 1480, which is the optimum for the network
we’re working with (1452+28=1480).
Once you nd your MTU, you can now congure your router with the proper MTU size.
To change the MTU rate on your router follow the steps below:
• Open your browser, enter the IP address of your router (192.168.0.1) and click OK.
• Enter your username (admin) and password (blank by default). Click OK to enter the web conguration
page for the device.
• Click on Setup>Internet and then click Manual Internet Connection Setup.
• To change the MTU enter the number in the MTU eld and click Save Settings to save your settings.
• Test your e-mail. If changing the MTU does not resolve the problem, continue changing the MTU in
increments of ten.
91D-Link DIR-412 User Manual
Appendix A - Wireless Basics
Wireless Basics
D-Link wireless products are based on industry standards to provide easy-to-use and compatible high-speed wireless
connectivity within your home, business or public access wireless networks. Strictly adhering to the IEEE standard,
the D-Link wireless family of products will allow you to securely access the data you want, when and where you want
it. You will be able to enjoy the freedom that wireless networking delivers.
A wireless local area network (WLAN) is a cellular computer network that transmits and receives data with radio signals
instead of wires. Wireless LANs are used increasingly in both home and ofce environments, and public areas such
as airports, coffee shops and universities. Innovative ways to utilize WLAN technology are helping people to work and
communicate more efciently. Increased mobility and the absence of cabling and other xed infrastructure have proven
to be benecial for many users.
Wireless users can use the same applications they use on a wired network. Wireless adapter cards used on laptop
and desktop systems support the same protocols as Ethernet adapter cards.
Under many circumstances, it may be desirable for mobile network devices to link to a conventional Ethernet LAN in
order to use servers, printers or an Internet connection supplied through the wired LAN. A Wireless Router is a device
used to provide this link.
92D-Link DIR-412 User Manual
Appendix A - Wireless Basics
What is Wireless?
Wireless or Wi-Fi technology is another way of connecting your computer to the network without using wires.
Wi-Fi uses radio frequency to connect wirelessly, so you have the freedom to connect computers anywhere
in your home or ofce network.
Why D-Link Wireless?
D-Link is the worldwide leader and award winning designer, developer, and manufacturer of networking
products. D-Link delivers the performance you need at a price you can afford. D-Link has all the products
you need to build your network.
How does wireless work?
Wireless works similar to how cordless phone work, through radio signals to transmit data from one point
A to point B. But wireless technology has restrictions as to how you can access the network. You must be
within the wireless network range area to be able to connect your computer. There are two different types of
wireless networks Wireless Local Area Network (WLAN), and Wireless Personal Area Network (WPAN).
Wireless Local Area Network (WLAN)
In a wireless local area network, a device called an Access Point (AP) connects computers to the network.
The access point has a small antenna attached to it, which allows it to transmit data back and forth over radio
signals. With an indoor access point as seen in the picture, the signal can travel up to 300 feet. With an outdoor
access point the signal can reach out up to 30 miles to serve places like manufacturing plants, industrial
locations, college and high school campuses, airports, golf courses, and many other outdoor venues.
93D-Link DIR-412 User Manual
Appendix A - Wireless Basics
Wireless Personal Area Network (WPAN)
Bluetooth is the industry standard wireless technology used for WPAN. Bluetooth devices in WPAN operate
in a range up to 30 feet away.
Compared to WLAN the speed and wireless operation range are both less than WLAN, but in return it
doesn’t use nearly as much power which makes it ideal for personal devices, such as mobile phones, PDAs,
headphones, laptops, speakers, and other devices that operate on batteries.
Who uses wireless?
Wireless technology as become so popular in recent years that almost everyone is using it, whether it’s for
home, ofce, business, D-Link has a wireless solution for it.
Home
• Gives everyone at home broadband access
• Surf the web, check e-mail, instant message, and etc
• Gets rid of the cables around the house
• Simple and easy to use
Small Ofce and Home Ofce
• Stay on top of everything at home as you would at ofce
• Remotely access your ofce network from home
• Share Internet connection and printer with multiple computers
• No need to dedicate ofce space
94D-Link DIR-412 User Manual
Appendix A - Wireless Basics
Where is wireless used?
Wireless technology is expanding everywhere not just at home or ofce. People like the freedom of mobility
and it’s becoming so popular that more and more public facilities now provide wireless access to attract people.
The wireless connection in public places is usually called “hotspots”.
Using a D-Link Cardbus Adapter with your laptop, you can access the hotspot to connect to Internet from
remote locations like: Airports, Hotels, Coffee Shops, Libraries, Restaurants, and Convention Centers.
Wireless network is easy to setup, but if you’re installing it for the rst time it could be quite a task not knowing
where to start. That’s why we’ve put together a few setup steps and tips to help you through the process of
setting up a wireless network.
Tips
Here are a few things to keep in mind, when you install a wireless network.
Centralize your router or Access Point
Make sure you place the router/access point in a centralized location within your network for the best
performance. Try to place the router/access point as high as possible in the room, so the signal gets dispersed
throughout your home. If you have a two-story home, you may need a repeater to boost the signal to extend
the range.
Eliminate Interference
Place home appliances such as cordless telephones, microwaves, and televisions as far away as possible
from the router/access point. This would signicantly reduce any interference that the appliances might cause
since they operate on same frequency.
95D-Link DIR-412 User Manual
Appendix A - Wireless Basics
Security
Don’t let you next-door neighbors or intruders connect to your wireless network. Secure your wireless network
by turning on the WPA or WEP security feature on the router. Refer to the product manual for detailed
information on how to set this up.
Wireless Modes
There are basically two modes of networking:
• Infrastructure – All wireless clients will connect to an access point or wireless router.
• Ad-Hoc – Directly connecting to another computer, for peer-to-peer communication, using wireless
network adapters on each computer, such as two or more DIR-412 wireless network Cardbus adapters.
An Infrastructure network contains an Access Point or wireless router. All the wireless devices, or clients, will connect
to the wireless router or access point.
An Ad-Hoc network contains only clients, such as laptops with wireless cardbus adapters. All the adapters must be in
Ad-Hoc mode to communicate.
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