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Page 46 / 83 Scroll up to view Page 41 - 45
4²
D-L±nk DIR-451 User Manual
Sect±on 4 - Secur±ty
Configure WEP
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 configuration by opening a web browser and entering the IP address of the router (192.168.0.1).
Click on
.Wireless.Settings
on the left side.
2. Next to
Security Mode
, select
Enable
WEP.Security
.
3. Next to
Authentication
, select
Open
or
Shared.Key
.
4. Select either
64-bit
or
128-bit
encryption from the drop-down
menu next to
WEP Encryption
.
5. Next to
Key Type
, select either
Hex
or
ASCII
.
Hex (recommended) - Letters A-F and numbers 0-9 are valid.
ASCII - All numbers and letters are valid.
6. Next to
Key 1
, enter a WEP key that you create. Make sure
you enter this key exactly on all your wireless devices. You
may enter up to 4 different keys.
7. Click
Save.Settings
to save your settings. If you are configuring the router with a wireless adapter, you will lose
connectivity until you enable WEP on your adapter and enter the same WEP key as you did on the router.
Page 47 / 83
4³
D-L±nk DIR-451 User Manual
Sect±on 4 - Secur±ty
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-specific 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.
Page 48 / 83
44
D-L±nk DIR-451 User Manual
Sect±on 4 - Secur±ty
Configure WPA-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 configuration by opening a web browser and entering the IP address of the router (192.168.0.1).
Click on
.Wireless.Settings
on the left side.
2. Next to
Security Mode
, select
Enable.WPA-Personal.Security
or
Enable.WPA2-Personal.Security
.
3. Next to
Cipher Mode
, select
TKIP,.AES,.
or
.Auto
.
4. Next to
PSK/EAP
, select
PSK
.
5. Next to
Passphrase
, enter a key (passphrase). The key is an
alpha-numeric password between 8 and 63 characters
long. The password can include symbols (!?*&_) and
spaces. Make sure you enter this key exactly the same
on all other wireless clients.
6. Enter the passphrase again next to
Confirmed Passphrase
.
7. Click
Save.Settings
to save your settings. If you are configuring the router with a wireless adapter, you will lose
connectivity until you enable WPA-PSK (or WPA2-PSK) on your adapter and enter the same passphrase as you did
on the router.
Page 49 / 83
45
D-L±nk DIR-451 User Manual
Sect±on 4 - Secur±ty
Configure WPA (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 configuration by opening a web browser and entering the IP address of the router (192.168.0.1).
Click on
.Wireless.Settings
on the left side.
2. Next to
Security Mode
, select
Enable.WPA-Personal.Security
or
Enable.WPA2-Personal.Security
.
3. Next to
Cipher Mode
, select
TKIP,.AES,.
or
.Auto
.
4. Next to
PSK/EAP
, select
EAP
.
5. Next to
RADIUS Server 1
enter the IP Address of your RADIUS
server.
6. Next to
Port
, enter the port you are using with your RADIUS server. 1812 is the default port.
7. Next to
Shared Secret
, enter the security key.
8. If you have a secondary RADIUS server, enter its IP address, port, and secret key.
9. Click
Apply.Settings
to save your settings.
Page 50 / 83
4´
D-L±nk DIR-451 User Manual
Sect±on 5 - Connect±ng to a W±reless 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.
Right-click on the wireless computer icon in your system tray
(lower-right corner next to the time). Select
Connect.to.a.
network
.
If you receive the
Wireless.Networks.Detected
bubble, click on
the center of the bubble to access the utility.
or
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.

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