D-Link DWL-7200AP - AirPremier AG - Wireless Access... User manual

Manual
Building Networks for People
D-Link AirPremier™ AG
DWL-7200AP
802.11a/802.11g Dualband Wireless
108Mbps Access Point with PoE

2
Contents
Package Contents ................................................................................ 3
Introduction ........................................................................................... 4
Connections ......................................................................................... 5
LEDs ..................................................................................................... 6
Features ............................................................................................... 7
Wireless Basics .................................................................................... 8
Installation Considerations ................................................................. 10
Getting Started ....................................................................................11
Using the Configuration Menu ............................................................ 13
Using the AP Manager ........................................................................ 35
Troubleshooting .................................................................................. 56
Technical Specifications ..................................................................... 62
Contacting Technical Support ............................................................. 65
Warranty and Registration .................................................................. 66

3
Package Contents
Contents of Package:
D-Link AirPremier™ AG DWL-7200AP
802.11a/802.11g Dualband Wireless 108Mbps Access Point with
PoE
Power over Ethernet base unit
Power Adapter-DC 48V, 0.4A
Power cord
Manual and Warranty on CD
Quick Installation Guide
Ethernet Cable
Internet Explorer Version 6.0 or Netscape Navigator Version
7.0 and above
Computers with Windows, Macintosh, or Linux-based
operating systems with an installed Ethernet adapter
Note: Using a power supply with a different voltage rating than the one included with
the DWL-7200AP 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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At least 128MB of memory and a 500MHz processor
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4
Introduction
The DWL-7200AP is capable of operating in one of 5 different modes to meet your
wireless networking needs. The DWL-7200AP can operate as an access point, or in
access point-to-access point bridging mode, or in access point-to-multipoint bridging
mode, or in AP client mode, or as a repeater.
Use less wiring, enjoy increased flexibility, save time and money with PoE (Power over
Ethernet). With PoE, the DWL-7200AP shares power and data over the CAT5 cable,
making the setup of your network less expensive and more convenient.
An ideal solution for quickly creating and extending a wireless local area network
(WLAN) in offices or other workplaces, trade shows and special events, the DWL-
7200AP provides data transfers at up to 108Mbps in Super AG Mode when used with
other D-Link AirPremierTM AG products. (The 802.11g standard is backwards compatible
with 802.11b devices.)
At up to fifteen times the speed of previous wireless devices (up to 108Mbps* in Super
AG Mode), you can work faster and more efficiently, increasing productivity. With the
DWL-7200AP, bandwidth-intensive applications like graphics or multimedia will benefit
significantly because large files are able to move across the network quickly.
Inclusion of all three standards (802.11g; 802.11a; 802.11b) means that the DWL-7200AP
is versatile enough to allow connection to almost any 802.11 network or device.
The DWL-7200AP has the newest, strongest and most advanced security features
available today. When used with other 802.11 WPA (Wi-Fi Protected Access) compatible
products in a network with a RADIUS server, the security features include:
WPA: Wi-Fi Protected Access which authorizes and identifies users based on a secret
key that changes automatically at regular intervals. 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 ensures much
greater security than the standard WEP security. (By contrast, the previous WEP
encryption implementations required the keys to be changed manually.)
For home users that will not incorporate a RADIUS server in their network, the security
for the DWL-7200AP, used in conjunction with other WPA-compatible 802.11 products,
will still be much stronger than ever before. Utilizing the Pre-Shared Key mode of WPA,
the DWL-7200AP will obtain a new security key every time it connects to the 802.11
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 DWL-7200AP, you will automatically receive a new key every time
you connect, vastly increasing the safety of your communication.
“Maximum wireless signal rate derived from IEEE Standard 802.11a and 80211.g specfications. 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
Receptor
for the
Power
Adapter.
Pressing the
Reset Button
restores the
DWL-7200AP
to its original
factory default
settings.
The LAN Port is Auto-MDI/
MDIX. You can insert either
a straight-through or a
crossover Ethernet cable in
this port in order to connect
the DWL-7200AP to the
local network.

6
LEDs
LED stands for Light-Emitting Diode. The DWL-7200AP Wireless Access Point
has 3 LEDs as shown below:
10M (Link/Act):
Blinking green light
indicates activity
(data transfer rates
of up to 10Mbps) on
the Ethernet Port;
solid green light
indicates connection.
Power:
Solid green light
indicates connection.
11a WLAN & 11b/g WLAN:
100M (Link/Act):
Blinking green light
indicates activity on the
Fast Ethernet Port; solid
green light indicates
connection.
Fast Ethernet supports
data transfer rates up to
100Mbps.
Blinking green light indicates
activity on the respective
WLAN; solid green light
indicates connection.

7
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Compatible with the 802.11b standard to provide a wireless data rate of up
to 11Mbps - that means you can migrate your system to the 802.11g standard
on your own schedule without sacrificing connectivity.
Easy Installation with PoE (Power over Ethernet).
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Better security with WPA- The DWL-7200AP can securely connect to wireless
clients on the network using WPA (Wi-Fi Protected Access) providing a much
higher level of security for your data and communications than has previously
been available.
Faster Wireless Networking with speeds up to 108Mbps in Super AG
mode
Compatible with 802.11a, 802.11b and 802.11g Devices - Fully compatible
with the IEEE 802.11a, 802.11b and 802.11g standards, the DWL-7200AP
can connect with existing 802.11b-, 802.11g- or 802.11a-compliant wireless
network adapter cards.
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5 Different Operation modes - Capable of operating in one of four different
operation modes to meet your wireless networking requirements: Access Point,
AP-to-AP Bridging, AP-to-Multipoint Bridging, AP Client, or Repeater.
Features
LEDs
LED stands for Light-Emitting Diode. The DWL-7200AP Wireless Access Point
with PoE has 5 Green LEDs as shown below:
Power
LAN (10/100)
WLAN
(802.11a and
802.11b or
802.11g)
A steady light indicates a connection to a power
source
A steady light indicates a connection to the Ethernet
port; a blinking light indicates activity
LED LED Activity
A blinking light indicates activity in the respective
wireless mode: 802.11a and/or 802.11b/802.11g

8
Wireless Basics
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.
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 Wireless Local Area Network (WLAN) is a 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.
People use WLAN 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.
Inexpensive Solution - Wireless network devices are as competitively priced as
conventional Ethernet network devices. The DWL-7200AP saves money by providing
multi-functionality, configurable in one of four different modes.
Scalability - WLANs can be configured in a variety of ways 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.

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The DWL-7200AP offers the most advanced network security features available today,
including WPA.
In addition to its compatibility with 802.11g and 802.11a devices, the DWL-7200AP
is compatible with 802.11b devices. This means that if you have an existing 802.11b
network, or a network with a mixture of 802.11g, 802.11a and 802.11b, the devices in
that network will be compatible with the DWL-7200AP.
Wireless Basics (continued)
Standards-Based Technology
The DWL-7200AP Wireless Access Point utilizes the 802.11a, 802.11b and the 802.11g
standards.
The IEEE 802.11g standard is an extension of the 802.11b standard. It increases the
data rate up to 54Mbps (108Mbps in Super AG Mode) 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 D-Link DWL-7200AP will automatically sense the best possible connection speed
to ensure the greatest speed and range possible.
The DWL-7200AP is compatible, in default mode, with the following wireless products:
Wireless Cardbus Adapters used with laptop computers
D-Link AirPremierTM AG DWL-AG530
Wireless PCI cards used with desktop computers
The DWL-7200AP is also interoperable with other 802.11a, 802.11g and
802.11b standards-compliant devices.
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D-Link AirPremierTM AG DWL-AG660

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Wireless Basics (continued)
Installation Considerations
The D-Link AirPremier™ AG DWL-7200AP 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 your product away (at least 3-6 feet or 1-2 meters) from electrical devices
or appliances that generate RF noise.
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Keep the number of walls and ceilings between the DWL-7200AP and other
network devices to a minimum - each wall or ceiling can reduce your DWL-
7200AP’s range from 3-90 feet (1-30 meters.) Position your devices so that the
number of walls or ceilings is minimized.
1
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.
2
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.
3

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A laptop computer with a wireless adapter -
D-Link AirPremierTM AG DWL-AG660
A desktop computer with a wireless adapter -
D-Link AirPremierTM AG DWL-AG530
A cable modem - D-Link DCM-201
Getting Started
On the following pages we will show you an example of an Infrastructure Network
incorporating the DWL-7200AP.
An Infrastructure network contains an access point or a wireless router. The
Infrastructure Network example shown on the following page contains the following
D-Link network devices (your existing network may be comprised of other devices):
An Ethernet router - D-Link DI-604
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A wireless access point -
D-Link AirPremier™ AG DWL-7200AP
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Right out of the box, with its default settings, the DWL-7200AP will automati-
cally connect with other D-Link AirPremierTM AG products.
If you need to assign IP addresses to the computers on the network, please
remember that the IP address for each computer must be in the same IP
address range as all the computers in the network, and the subnet mask
must be exactly the same for all the computers in the network.
For example: If the first computer is assigned an IP address of 192.168.0.2 with a
subnet mask of 255.255.255.0, then the second computer can be assigned an IP
address of 192.168.0.3 with a subnet mask of 255.255.255.0, etc.
IMPORTANT: If computers or other devices are assigned the same IP
address, one or more of the devices may not be visible on the network.
IP ADDRESS
Note: If you are using a DHCP-capable router in your network you will not
need to assign a static IP address.

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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 an Ethernet broadband router such as
the DI-604 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
AirPremierTM AG DWL-AG660 wireless PCI adapter into an available PCI slot
on your desktop computer.
(See the printed Quick Installation Guide included with the DWL-AG660.)
Install the D-Link AirPremierTM AG DWL-AG530 wireless Cardbus adapter into
a laptop computer.
(See the printed Quick Installation Guide included with the DWL-AG530.)
Getting Started (continued)
For a typical wireless setup at home (as shown above), please do the
following:
Setting up a
Wireless
Infrastructure
Network
2
Connect the Ethernet Broadband Router, via the PoE unit, to the DWL-
7200AP. (See the printed Quick Installation Guide included with the DWL-
7200AP.)
1
6
3
4
5

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Note: if you have changed the default IP address assigned to the DWL-7200AP, make sure to
enter the correct IP address.
Using the Configuration Menu
Home > Wizard
The Home>Wizard screen
will appear. Please refer to the
Quick Installation Guide for
more information regarding
the Setup Wizard.
After you have completed the Setup Wizard (please see the Quick Installation Guide that
came with the product) you can access the Configuration menu at any time by opening
the Web browser and typing in the IP address of the DWL-7200AP. The DWL-7200AP
default IP address is shown below:
 Open the Web browser
 Type in the IP address of the
DWL-7200AP
http://192.168.0.50
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Type admin in the User Name field
Leave the Password blank.
(However, if you have changed
the password, please enter the
correct password.)
Click OK
admin
DWL-7200AP

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Using the Configuration Menu (continued)
Home > Wireless
Channel- 52 is the default channel for 802.11a, and 6 is the default channel for
802.11g. All devices on the network must share the same channel.
Wireless
Band- Select IEEE802.11a (default) or IEEE802.11g.
SSID- Service Set Identifier (SSID) is the name designated for a specific
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.
SSID
Broadcast- Enable or Disable SSID Broadcast. Enabling this feature broadcasts
the SSID across the network.
Apply- Click Apply to save the changes.
Radio
Frequency-
The radio frequency will reflect the wireless band that has been selected.
IEEE802.11a - 5.26GHz
IEEE802.11g - 2.437GHz

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Using the Configuration Menu (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 DWL-7200AP. These settings may be
referred to as private settings. You may change the LAN IP address if needed. The LAN
IP address is private to your internal network and cannot be seen on the Internet.
Click Apply to save the changes.
Get IP From- Select Static (Manual) or Dynamic (DHCP) as the method you
will use to assign an IP address to the DWL-7200AP.
Apply-
Default Gateway- This field is optional. Enter in the lP address of the router on
your network.
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: 192.168.0.50

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Using the Configuration Menu (continued)
Advanced > Mode
The DWL-7200AP can be configured to perform in any of five modes: Wireless Access
Point, Wireless Bridge, Multi-Point Bridge, AP Client or Repeater.
Access Point - is the default setting. This mode is used to create a wireless LAN.
PtP Bridge - will allow you to connect two LANs together. The wireless bridge will
only work with another DWL-7200AP. Click to enable and enter the MAC address of
the remote bridge.

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Using the Configuration Menu (continued)
Advanced > Mode (continued)
PtMP Bridge - will allow you to connect multiple wireless LANs together. Other
wireless LANs must be using DWL-7200APs. Click to enable, and enter up to 8 remote
AP MAC addresses.
Apply - Click Apply if you have made any changes.
Click Site Survey to see the configuration of the devices on the network.
MAC Address - Media Access Control Address
A unique hardware address that identifies a device on a network. It is assigned
at the factory and cannot be changed. Usually you will find this address on a
sticker on the device or on the packaging.
Find the MAC address of the DWL-7200AP that is acting as a Remote Access
Point or a Remote Bridge, by going to Status > Device Info in the configuration
utility of the remote DWL-7200AP. There you will find the MAC address.
AP Repeater - will allow you to repeat the wireless signal of the root AP. Click to enable
and enter the MAC address of the root AP.
AP Client - will transform any IEEE802.3 Ethernet device (e.g., a computer, printer,
etc.) into an 802.11a or 802.11g wireless client when it communicates with another
DWL-7200AP that is acting as an AP. Click to enable and enter the MAC address of
the DWL-7200AP that is acting as the AP.

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Using the Configuration Menu (continued)
Advanced > Performance > 802.11a
Transmit
Power-
Choose full, half (-3dB), quarter (-6dB), eighth (-9dB), minimum power.
Frequency-
The frequency is 5.26GHz.
Auto Channel Select-
The access point automatically selects
the best channel for communication.
The default setting is Disabled.
Fragment
Length-
The fragmentation threshold, which is specified in bytes, deter-
mines whether packets will be fragmented. Packets exceeding the
2346 byte setting will be fragmented before transmission. 2346
is the default setting
DTIM- (Delivery Traffic Indication Message)- DTIM is a countdown in-
forming clients of the next window for listening to broadcast and
multicast messages.
Wireless Band-
IEEE802.11a is selected (default).
Data Rate-
Select the transmission rate for the
network. The default is Auto.
Beacon Interval- Beacons are packets sent by an access point to synchronize a
network. Specify a beacon interval value. The default (100) is
recommended.
RTS Length- This value should remain at its default setting of 2346.
If you encounter inconsistent data flow, only minor modifications to
the value range between 256 and 2346 are recommended
Super Mode- Super Mode is a group of performance enhancement features that
increase end user application throughput in an 802.11a network.
For top performance, all wireless devices on the network should
be Super Mode capable. Select either Disabled, Super Mode
without Turbo, Super Mode with Dynamic Turbo, or Super Mode
with Static Turbo.
Disabled- Standard 802.11a support, no enhanced capabilities.
Super Mode
without Turbo-
Capable of Packet Bursting, FastFrames, Compression, and no
Turbo mode.
This tool can be helpful for security purposes if you wish to limit
the transmission range.
Channel-
The default channel is 52.

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Using the Configuration Menu (continued)
Super Mode with
Dynamic Turbo-
Capable of Packet Bursting, FastFrames, Compression, and
Dynamic Turbo. This setting is backwards compatible with non-
Turbo (legacy) devices. Dynamic Turbo mode is only enabled
when all devices on the wireless network are configured with
Super Mode with Dynamic Turbo enabled.
Super Mode with
Static Turbo-
Capable of Packet Bursting, FastFrames, Compression, and
Static Turbo. This setting is not backwards compatible with non-
Turbo (legacy) devices. Static turbo mode is always on and is
only enabled when all the devices on the wireless network are
configured with Super Mode with Static Turbo enabled.
Radio Wave- Select ON or OFF.
Advanced > Performance>802.11a (continued)
Frequency-
The frequency is 2.437GHz.
Channel-
The default channel is 6.
Fragment
Length-
The fragmentation threshold, which is specified in bytes, determines
whether packets will be fragmented. Packets exceeding the 2346
byte setting will be fragmented before transmission. 2346 is the
default setting.
DTIM- (Delivery Traffic Indication Message)- DTIM is a countdown
informing clients of the next window for listening to broadcast
and multicast messages.
Wireless Band-
IEEE802.11g is selected.
Data Rate-
Select the transmission rate for the
network. The default is Auto.
Beacon Interval- Beacons are packets sent by an access point to synchronize
a network. Specify a beacon interval value. The default (100)
is recommended.
Advanced > Performance > 802.11g

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Using the Configuration Menu (continued)
Advanced > Performance> 802.11g (continued)
Transmit
Power-
Choose full, half (-3dB), quarter (-6dB), eighth (-9dB), minimum power.
RTS Length-
This value should remain at its default setting of 2346. If you encounter
inconsistent data flow, only minor modifications to the value range
between 256 and 2346 are recommended.
Super Mode- Super Mode is a group of performance enhancement features that
increase end user application throughput in an 802.11g network.
For top performance, all wireless devices on the network should
be Super Mode capable. Select either Disabled, Super Mode
without Turbo, Super Mode with Dynamic Turbo, or Super Mode
with Static Turbo.
Disabled- Standard 802.11g support, no enhanced capabilities.
Super Mode
without Turbo-
Capable of Packet Bursting, FastFrames, Compression, and no
Turbo mode.
This tool can be helpful for security purposes if you wish to limit
the transmission range.
Super Mode
with Dynamic
Turbo-
Capable of Packet Bursting, FastFrames, Compression, and Dynamic
Turbo. This setting is backwards compatible with non-Turbo (legacy)
devices. Dynamic Turbo mode is only enabled when all devices on
the wireless network are configured with Super Mode with Dynamic
Turbo enabled.
Super Mode
with Static
Turbo-
Capable of Packet Bursting, FastFrames, Compression, and Static
Turbo. This setting is not backwards compatible with non-Turbo
(legacy) devices. Static turbo mode is always on and is only enabled
when all the devices on the wireless network are configured with
Super Mode with Static Turbo enabled.
802.11g only- For increased speed in your network, enable this option.
802.11b devices will be excluded.
Radio Wave- Select ON or OFF.