D-Link AirPlusXtremeG DI-624 User manual

High-Speed 2.4 GHz
Manual
Building Networks for People
Wireless Router
D-Link AirPlus Xtreme G
DI-624
TM
Version 1.06

2
Contents
Package Contents ................................................................................ 3
Introduction ........................................................................................... 4
Wireless Basics .................................................................................... 8
Getting Started ....................................................................................11
Using the Configuration Menu ............................................................ 12
Networking Basics .............................................................................. 40
Troubleshooting .................................................................................. 55
Technical Specifications ..................................................................... 62
Frequently Asked Questions .............................................................. 65
Contacting Technical Support ............................................................. 93
Warranty ............................................................................................. 94
Registration ........................................................................................ 97

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Internet Explorer Version 6.0 or Netscape Navigator
Version 6.0 and Above
Contents of Package:
D-Link AirPlus XTREME G DI-624
High-Speed 2.4GHz Wireless Router
Power Adapter-DC 5V, 3.0A
Manual and Warranty on CD
Quick Installation Guide
Ethernet Cable (All the DI-624’s Ethernet ports are Auto-MDIX)
Computers with Windows, Macintosh, or Linux-based
operating systems with an installed Ethernet adapter
Package Contents
Note: Using a power supply with a different voltage rating than the one included with
the DI-624 will cause damage and void the warranty for this product.
If any of the above items are missing, please contact your reseller.
System Requirements for Configuration:
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Ethernet-Based Cable or DSL Modem
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4
Introduction
The D-Link AirPlus Xtreme G DI-624 High-Speed Wireless Router is an 802.11g high-
performance, wireless router that supports high-speed wireless networking at home,
at work or in public places.
Unlike most routers, the DI-624 provides data transfers at up to 108 Mbps* (compared
to the standard 54 Mbps) when used with other D-Link AirPlus Xtreme G products. The
802.11g standard is backwards compatible with 802.11b products. This means that you
do not need to change your entire network to maintain connectivity. You may sacrifice
some of 802.11g’s speed when you mix 802.11b and 802.11g devices, but you will not
lose the ability to communicate when you incorporate the 802.11g standard into your
802.11b network. You may choose to slowly change your network by gradually replacing
the 802.11b devices with 802.11g devices .
In addition to offering faster data transfer speeds when used with other 802.11g products,
the DI-624 has the newest, strongest, most advanced security features available today.
When used with other 802.11g WPA (WiFi Protected Access) and 802.1x compatible
products in a network with a RADIUS server, the security features include:
WPA: Wi-Fi Protected Access authorizes and identifies users based on a secret key
that changes automatically at a regular interval. WPA uses TKIP (Temporal
Key Integrity Protocol) to change the temporal key every 10,000 packets (a
packet is a kind of message transmitted over a network.) This insures much
greater security than the standard WEP security. (By contrast, the older WEP
encryption required the keys to be changed manually.)
802.1x: Authentication is a first line of defense against intrusion. In the Authentication
process the server verifies the identity of the client attempting to connect to the
network. Unfamiliar clients would be denied access.
For home users that will not incorporate a RADIUS server in their network, the security
for the DI-624, used in conjunction with other 802.11g products, will still be much stronger
than ever before. Utilizing the Pre Shared Key mode of WPA, the DI-624 will obtain a
new security key every time it connects to the 802.11g network. You only need to input
your encryption information once in the configuration menu. No longer will you have to
manually input a new WEP key frequently to ensure security, with the DI-624, you will
automatically receive a new key every time you connect, vastly increasing the safety
of your communications.
*Maximum wireless signal derived from IEEE Standard 802.11g specifications. Actual data throughput will
vary. Network conditions and environmental factors, including volume of network traffic, building materials
and construction, and network overhead lower actual data throughput rate.

5
Connections
All Ethernet Ports (WAN and LAN)
are auto MDI/MDIX, meaning you
can use either a straight-through or
a crossover Ethernet cable.
The Auto MDI/
MDIX WAN port is
the connection for
the Ethernet cable
to the Cable or
DSL modem
Auto MDI/MDIX
LAN ports
automatically sense
the cable type
when connecting to
Ethernet-enabled
computers.
Receptor
for the
Power
Adapter
Pressing the
Reset Button
restores the
router to its
original factory
default settings.

6
LEDs
WLAN LED
A solid light
indicates that the
wireless segment
is ready. This LED
blinks during wire-
less data trans-
mission.
POWER LED
A solid light in-
dicates a proper
connection to the
power supply.
STATUS
A blinking light
indicates that the
DI-624 is ready.
WAN LED
A solid light indicates
connection on the
WAN port. This LED
blinks during data
transmission.
LOCAL
NETWORK LED
A solid light indi-
cates a connection
to an Ethernet-en-
abled computer on
ports 1-4. This LED
blinks during data
transmission.

7
Features
WPA (Wi Fi Protected Access) authorizes and identifies users based on a
secret key that changes automatically at a regular interval, for example:
802.1x Authentication in conjunction with the RADIUS server verifies the
identity of would be clients
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TKIP (Temporal Key Integrity Protocol), in conjunction with a RADIUS
server, changes the temporal key every 10,000 packets, ensuring
greater security
Pre Shared Key mode means that the home user, without a RADIUS
server, will obtain a new security key every time the he or she con-
nects to the network, vastly improving the safety of communications
on the network
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Backwards compatible with the 802.11b standard to provide a wireless data
rate of up to 11Mbps
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Fully compatible with the 802.11g standard to provide a wireless data rate of
up to 108Mbps
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Utilizes OFDM technology (Orthogonal Frequency Division Multiplexing)
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User-friendly configuration and diagnostic utilities
Operates in the 2.4GHz frequency range
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Connects multiple computers to a Broadband (Cable or DSL) modem to
share the Internet connection
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IP Filtering
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Advanced Firewall features
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DHCP server enables all networked computers to automatically receive IP
addresses
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Web-based interface for Managing and Configuring
Access Control to manage users on the network
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Supports special applications that require multiple connections
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Equipped with 4 10/100 Ethernet ports, 1 WAN port, Auto MDI/MDIX
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URL Filtering
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Domain Blocking
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Scheduling
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Supports NAT with VPN pass-through, providing added security
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MAC Filtering
*Maximum wireless signal derived from IEEE Standard 802.11g specifications. Actual data throughput will
vary. Network conditions and environmental factors, including volume of network traffic, building materials
and construction, and network overhead lower actual data throughput rate.

8
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. D-Link wireless products will allow you access to the data
you want, when and where you want it. You will be able to enjoy the freedom that
wireless networking brings.
A WLAN is a cellular computer network that transmits and receives data with radio signals
instead of wires. WLANs are used increasingly in both home and office 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 efficiently.
Increased mobility and the absence of cabling and other fixed infrastructure have proven
to be beneficial 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.
People use wireless LAN technology for many different purposes:
Mobility - Productivity increases when people have access to data in any location
within the operating range of the WLAN. Management decisions based on real-time
information can significantly improve worker efficiency.
Low Implementation Costs – WLANs are easy to set up, manage, change
and relocate. Networks that frequently change can benefit from WLANs ease of
implementation. WLANs can operate in locations where installation of wiring may be
impractical.
Installation and Network Expansion - Installing a WLAN system can be fast and
easy and can eliminate the need to pull cable through walls and ceilings. Wireless
technology allows the network to go where wires cannot go - even outside the home
or office.
Scalability – WLANs can be configured in a variety of topologies to meet the needs
of specific applications and installations. Configurations are easily changed and range
from peer-to-peer networks suitable for a small number of users to larger infrastructure
networks to accommodate hundreds or thousands of users, depending on the number
of wireless devices deployed.
Inexpensive Solution - Wireless network devices are as competitively priced as
conventional Ethernet network devices.

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Standards-Based Technology
The DI-624 Wireless Broadband Router utilizes the new 802.11g standard.
The IEEE 802.11g standard is an extension of the 802.11b standard. It increases the
data rate up to 54Mbps* within the 2.4GHz band, utilizing OFDM technology.
This means that in most environments, within the specified range of this device, you
will be able to transfer large files quickly or even watch a movie in MPEG format over
your network without noticeable delays. This technology works by transmitting high-
speed digital data over a radio wave utilizing OFDM (Orthogonal Frequency Division
Multiplexing) technology. OFDM works by splitting the radio signal into multiple
smaller sub-signals that are then transmitted simultaneously at different frequencies
to the receiver. OFDM reduces the amount of crosstalk (interference) in signal
transmissions.
The DI-624 is backwards compatible with 802.11b devices. This means that if you have
an existing 802.11b network, the devices in that network will be compatible with 802.11g
devices at speeds of up to 11Mbps in the 2.4GHz range.
Wireless Basics (continued)
*Maximum wireless signal rate based on IEEE Standard 802.11g specifications. Actual data throughput will
vary. Network conditions and environmental factors, including volume of network traffic, building materials
and construction, and network overhead lower actual data throughput rate.

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Wireless Basics (continued)
Installation Considerations
The D-Link AirPlus Xtreme G DI-624 lets you access your network, using a wireless
connection, from virtually anywhere within its operating range. 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:
Keep the number of walls and ceilings between the DI-624 and other network
devices to a minimum - each wall or ceiling can reduce your D-Link wireless
product’s range from 3-90 feet (1-30 meters.) Position your devices so that
the number of walls or ceilings is minimized.
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.
Keep your product away (at least 3-6 feet or 1-2 meters) from electrical
devices or appliances that generate extreme RF noise.
Building Materials can impede the wireless signal - a solid metal door or
aluminum studs may have a negative effect on range. Try to position wireless
devices and computers with wireless adapters so that the signal passes
through drywall or open doorways and not other materials.
1
2
3
4

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Please remember that D-Link AirPlus Xtreme G wireless devices are pre-
configured to connect together, right out of the box, with their default settings.
You will need broadband Internet access (a Cable or DSL-subscriber line into
your home or office).
Consult with your Cable or DSL provider for proper installation of the modem.
Connect the Cable or DSL modem to the DI-624 Wireless Broadband Router
(see the printed Quick Installation Guide included with your router.)
If you are connecting a desktop computer to your network, install the D-Link
AirPlus Xtreme G DWL-G520 wireless PCI adapter into an available PCI slot
on your desktop computer. You may also install the DWL-520+, or the DWL-
520.
Install the D-Link DWL-G650 wireless Cardbus adapter into a laptop computer.
(See the printed Quick Installation Guide included with the DWL-G650.)
Getting Started
For a typical wireless setup at home (as shown above),
please do the following:
Setting up a
Wireless 1
2
3
4
Install the D-Link DFE-530TX+ adapter into a desktop computer. The four
Ethernet LAN ports of the DI-624 are Auto MDI/MDIX and will work with both
Straight-Through and Cross-Over cable.
(See the printed Quick Installation Guide included with the DFE-530TX+.)
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5

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Type admin in the User
Name field
Leave the
Password blank
Click OK
Whenever you want to configure your network or
the DI-624, you can access the Configuration Menu
by opening the web-browser and typing in the IP
Address of the DI-624. The DI-624 default IP Address
is shown at right:
 Open the web browser
 Type in the IP Address of
the Router (http://192.168.0.1)
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Using the Configuration Menu
Home > Wizard
The Home>Wizard
screen will appear.
Please refer to the
Quick Installation
Guide for more infor-
mation regarding the
Setup Wizard.
Note: if you have changed the default IP Address assigned to
the DI-624, make sure to enter the correct IP Address.
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These buttons appear
on most of the configu-
ration screens in this
section. Please click on
the appropriate button
at the bottom of each
screen after you have
made a configuration
change.
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.
.
.
.

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Using the Configuration Menu (continued)
Home > Wireless
Keys 1-4- Input up to 4 WEP keys; select the one you wish to use.
Key Type- Select HEX or ASCII.
WEP Encryption- Select the level of encryption desired: 64-bit, or 128-bit.
SSID- Service Set Identifier (SSID) is the name designated for a spe-
cific wireless local area network (WLAN). The SSID’s factory
default setting is default. The SSID can be easily changed to
connect to an existing wireless network or to establish a new
wireless network.
WEP- Wired Equivalent Privacy (WEP) is a wireless security protocol
for Wireless Local Area Networks (WLAN). WEP provides se-
curity by encrypting the data that is sent over the WLAN. Select
Enabled or Disabled. Disabled is the default setting. (Note: If
you enable encryption on the DI-624 make sure to also enable
encryption on all the wireless clients or wireless connection will
not be established.)
Channel- 6 is the default channel. All devices on the network must share
the same channel. (Note: The wireless adapters will automati-
cally scan and match the wireless setting.)

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Using the Configuration Menu (continued)
Home > WAN > Dynamic IP Address
DI-754
Host Name- 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.
MAC Address- The default MAC Address is set to the WAN’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.
Clone
MAC Address-
The default MAC address is set to the WAN’s physical interface
MAC address on the Broadband Router. You can use the “Clone
MAC Address” button to copy the MAC address of the Ethernet
Card installed by your ISP and replace the WAN MAC address
with the MAC address of the router. It is not recommended
that you change the default MAC address unless required by
your ISP.
Dynamic
IP Address-
Choose Dynamic IP Address to obtain IP Address information
automatically from your ISP. Select this option if your ISP does
not give you any IP numbers to use. This option is commonly
used for Cable modem services.
Primary/
Secondary DNS
Address-
Enter an MTU value only if required by your ISP. Otherwise,
leave it at the default setting.
MTU-
Enter a DNS Address if you do not wish to use the one
provided by your ISP.

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Home > WAN > Static IP Address
Static IP Address-
IP Address-
Subnet Mask-
ISP
Gateway Address-
Primary
DNS Address-
Secondary
DNS Address-
Choose Static IP Address if all WAN 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 fields 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.
Input the public IP Address provided by your ISP.
Input your Subnet mask. (All devices in the network must have
the same subnet mask.)
Input the public IP address of the ISP to which you are
connecting.
Input the primary DNS (Domain Name Server) IP address
provided by your ISP.
This is optional.
Enter an MTU value only if required by your ISP. Otherwise,
leave it at the default setting.
MTU-
Using the Configuration Menu (continued)

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Using the Configuration Menu (continued)
Home > WAN > PPPoE
IP Address- This option is only available for Static PPPoE. Enter the static
IP Address for the PPPoE connection.
(Continued on the next page)
User Name- Your PPPoE username provided by your ISP.
Service Name- Enter the Service Name provided by your ISP (optional).
Retype Password- Re-enter the PPPoE password
PPPoE-
Static PPPoE-you have an assigned (static) IP Address.
Choose this option if your ISP uses PPPoE. (Most DSL users
will select this option.)
Dynamic PPPoE- receive an IP Address automatically from
Primary DNS
Address-
Primary DNS IP address provided by our ISP
Secondary DNS
Address-
This option is only available for Static PPPoE. Enter the static
IP Address for the PPPoE connection.
Choose PPPoE (Point
to Point Protocol over
Ethernet) if your ISP
uses a PPPoE con-
nection. Your ISP will
provide you with a
username and pass-
word. This option is
typically used for DSL
services. Select Dy-
namic PPPoE to ob-
tain an IP address
automatically for your
PPPoE connection.
Select Static PPPoE
to use a static IP ad-
dress for your PPPoE
connection.
Please be sure
to remove
any existing
PPPoE client
software
installed on your
computers.

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Using the Configuration Menu (continued)
Home > WAN > PPPoE continued
Home > LAN
LAN is short for Local Area Network. This is considered your internal network. These
are the IP settings of the LAN interface for the DI-624. These settings may be referred
to as Private settings. You may change the LAN IP address if needed. The LAN IP ad-
dress is private to your internal network and cannot be seen on the Internet.
Auto-reconnect- If enabled, the DI-624 will automatically connect to your ISP
after your system is restarted or if the PPPoE connection is
MTU- Maximum Transmission Unit-1492 is the default setting-you
may need to change the MTU for optimal performance with
your specific ISP.
Local Domain- This field is optional. Enter in the local domain name.
Subnet Mask- The subnet mask of the LAN interface.
The default subnet mask is 255.255.255.0
IP Address- The IP address of the LAN interface. The default IP address
is: 192.168.0.1

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Using the Configuration Menu (continued)
Home > DHCP
DHCP stands for Dynamic Host Control Protocol. The DI-624 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
DI-624. 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.
DHCP Server- Select Enabled or Disabled. The default setting is Enabled.
Starting
IP Address- The starting IP address for the DHCP server’s IP assignment
Ending
IP Address- The ending IP address for the DHCP server’s IP assignment
Lease Time- The length of time for the IP lease. Enter the Lease time. The
default setting is one hour
DI-754

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Advanced > Virtual Server
Using the Configuration Menu (continued)
The DI-624 can be configured 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 DI-624 firewall feature filters out unrecognized packets to protect your LAN
network so all computers networked with the DI-624 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 DI-
624 redirects the external service request to the appropriate server within the LAN
The DI-624 is also capable of port-redirection, meaning incoming traffic 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. There are pre-defined virtual services already in the table. You
may use them by enabling them and assigning the server IP to use that particular
virtual service.

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Advanced > Virtual Server continued
Using the Configuration Menu (continued)
Example #1:
Protocol Type- The protocol used for the virtual service.
Public Port- The port number on the WAN (Wide Area Network) side that
will be used to access the virtual service.
Private Port- The port number of the service used by the Private IP com-
Schedule- The schedule of time when the virtual service will be enabled.
The schedule may be set to Always, which will allow the
particular service to always be enabled. If it is set to Time,
select the time frame for the service to be enabled. If the
system time is outside of the scheduled time, the service will
be disabled.
Virtual Server- Select Enabled or Disabled.
Name- Enter the name referencing the virtual service.
Private IP- The server computer in the LAN (Local Area Network) that will
be providing the virtual services.
If you have a Web server that you wanted Internet users
to access at all times, you would need to enable it. Web
(HTTP) server is on LAN (Local Area Network) computer
192.168.0.25. HTTP uses port 80, TCP.
Name: Web Server
Private IP: 192.168.0.25
Protocol Type: TCP
Private Port: 80
Public Port: 80
Schedule: always