D-Link AirPlus Xtreme G DWL-2000AP User manual

How To Set Up Wireless Network Security
Part 1: WEP
Part 2: WPA-PSK
Part 3-1: RADIUS Server Installation
Part 3-2: 802.1x-TLS
Part 3-3: WPA
You can secure your wireless connection using one of the methods described below. Choose the
one most suitable for your network. For simple networks WEP or WPA-PSK are most suitable,
complex networks with installed RADIUS services can use WPA.
Part 1: WEP
Step1: Setting up Access Point’s WEP encryption key.
1. Log into the Access Point using your WEB browser (e.g. Internet Explorer). Go to Wireless
configuration page (Home > Wireless).
Select the WEP option (Enable).
2. Select the “Key Mode” (ASCII or Hex).
ASCII (American Standard Code for Information Interchange): the standard for assigning numerical
values to the set of letters in the Roman alphabet and typographic characters.
HEX (Hexadecimal): numbers from 0 to 9 and letters from A to F.
3. Select WEP Key length.
64 bit: 5 ASCII or 10 Hex charcters
128 bit: 13 ASCII or 26 Hex characters
4. Select default key.
There are 4 WEP keys that can be used. Default key is the key number 1.
Select key 1, other three keys can be ignored.
5. Press “Apply” to complete your settings.

Step 2: Setting up Workstation’s WEP Key.
2a. If you are using D-Link Wireless Utility to configure your D-Link Wireless Card:
1. Open the D-Link AirPlus wireless utility by double-clicking on the bar graph icon and select
Encryption.
2. Put a check in the “Data Encryption” box and select “Shared Authentication” in the auth. mode
menu. Select 64, or 128 encryption for the key length. Under key 1 type in the Hex or ASCII
encryption key that was entered into the wireless router/access point.
2b. If you are using Windows XP to configure your wireless card:
1. Right-click “My Network Places” on your desktop and click “Properties” (or go to Start > Control
Panel > Network)
2. Select your Wireless LAN Card, right click on the icon and select “Properties”. Click on “Wireless
Network” tab.
3. Select the Access Point which you going to connect to and click “Configuration” on the right.
4. Under “Wireless Network Properties” tick “Data encryption (WEP Enabled)”.
Uncheck “The key is provided for me automatically”.
5. Select “key index” which is the default key for your station (Note: in some versions of Windows
the indexes are from 0 to 3 which are mapped to keys 1 to 4).
6. Key in your WEP Key value into “Network Key” (exactly the same as the one entered on your
Access Point).
8. Press “OK” to finish your workstation’s WEP settings.

Part 2: WPA-PSK
Since WPA-PSK standard is an extention of WEP key technology, its configuration is very similar to
the WEP key configuration:
Step1: Setting up Access Point’s WPA-PSK
1. Log into the Access Point using your WEB browser (e.g. Internet Explorer). Go to Wireless
configuration page (Home > Wireless).
Select the WPA-PSK option (Enable).
2. Key in your security code (no less than eight characters)
3. Press “Apply” to complete Access Point’s configuration.
Step2: Setting up Workstation’s WPA-PSK
1. We are using Windows XP as an example.
2. Right-click “My Network Places” on your desktop and click “Properties” (or go to Start > Control
Panel > Network)
3. Select your Wireless LAN Card, right click on the icon and select “Properties”. Click on “Wireless
Network” tab.
4. Select the Access Point which you going to connect to and click “Configuration” on the right.
5. Under “Network Authentication” select “WPA-PSK”.
Under “Data encryption” select “TKIP”
7. Key in your “Network Key” which should be same you entered on your Access Point
8. Press “OK” to finish your workstation’s WPA-PSK settings.

Part 3: 802.1x and WPA
Part 3-1: RADIUS Server Installation
WPA implementation requires RADUIS services running on your network.
We will use RADIUS Server running on Windows 2000 and 802.1x-TLS as an example.
Setting up RADIUS Server:
•Windows 2000 Server with Active Directory configuration.
•The server is set as Domain controller with DHCP/DNS enabled.
•For 802.1x, Windows 2000 requires Service Pack 3 or later.
•For WPA, Windows 2000 requires Service Pack 4 or later.
Step 1: Certificate Authority Installation
1. Logon into your Windows 2000 server as Administrator.
2. Go to Start > Control Panel > Add or Remove Programs.
3. Select “Add or remove Windows Components”.
4. Tick ”Certificate Services” and press “Next”.
5. Click “Enterprise root CA” press “Next”.

6. Put a CA name to identify this Certificate Service and press “Next”.
7. Specify data storage location, database and recode files and Press “Next”.
8. You will see “Computer processing Internet information service. You need to stop this service to
continue”. Press “Yes” to continue.
9. Press “Complete” to finish the Wizard.

Step 2: Certificate Authority Configuration
1. Go to Start>Program files> System administrative tools>Certificate Authority.
2. Open “Wireless” (the one you added into your system), right-click on the “Policy Setting” and
select “New”.
3. Select “Certificate to Issue”
4. Select two Certificates: ”Authenticated Session” and ”Smartcard Logon” by holding down Ctrl key.
Press “OK” to continue.
5. Go to Start> Program> System Administrative Tools> Active Directory Users and Computers.
6. Right Click on your Domain and click “Properties”.

7. Select “Group Policy” tab and tick “default Domain Policy” click on “Properties”.
8. Select Computer configuration > Security Setting > Public Key Policies
9. Right Click “Automatic Certificate Request Setting”, select “New” then click on “Automatic
Certificate Request”.

10. The Automatic Certificate Request Setup Wizard will guide you through the Automatic Certificate
Request Setup, Click next to continue.
11. Select ”Computer” certificate template and press “Next”.
12. Press ”Complete” to finish Automatic Certificate Request configuration Wizard.
13. Go to Start > Run type “CMD” press Enter.
14. Under Dos command type “c:\secedit/refreshpolicy machine_policy” and press Enter.