D-Link Blog Home

1.Enable WPA encryption on D-Link DIR-450/DIR-451

WPA is a strong form of wireless encryption, however not all wireless adapters support this feature. If your wireless adapter does not support WPA you will want to use WEP to secure your wireless network.

Step 1: Open a web browser and type the IP address of the D-Link DIR-450/451 router into the address bar (default is http://192.168.0.1).

Step 2: The default username is admin (all lower case) and the default password is blank (nothing). Click on OK.

Step 3: Click on the Setup tab at the top and then click on Wireless Settings on the left-hand side.

Step 4: Select the type of WPA encryption you would like to use with your wireless adapter from the Security Mode drop down menu. For WPA-PSK select Enable WPA- Personal Wireless Security (enhanced).

Note: All wireless products on the wireless network must have the same level of security to connect to the network.

Step 5: In the WPA Personal section, configure the following:

Select the Cipher Type

TKIP (Temporal Key Integrity Protocol) provides per-packet key generation and is based on WEP.
AES (Advanced Encryption Standard) is a very secure block based encryption.

Select the PSK or EAP

When PSK is selected, your wireless clients will need to provide a Passphrase for authentication.
When EAP is selected, you will need to have a RADIUS server on your network which will handle the authentication of all your wireless clients.

Enter your Passphrase

The key can contain up to 63 alphanumeric characters (any letters or numbers). It cannot be shorter than eight characters, although for proper security it needs to be of ample length and should not be a commonly known phrase.

Re-Enter your Passphrase
Step 6: Click the Save Settings button to save your settings.

2.Enable WEP encryption on D-Link DIR-450/DIR-451

Note: Enabling WEP on a DRAFT N connection will cap the speed to 54mbps. To gain the Draft N possible speeds, WPA2 is recomended. However WPA will also work.

Step 1: Open a web browser and type the IP address of the DIR series router into the address bar (default is http://192.168.0.1).

Step 2: The default username is admin (all lower case) and the default password is blank (nothing). Click on OK.

Step 3: Click on the Setup tab at the top and then click on Wireless Settings on the lefthand side.

Step 4: From the Wireless Security Mode dropdown menu, select WEP encryption. WEP is the wireless encryption standard. To use it you must enter the same key(s) into the router and all wireless clients you wish to connect.

For 64 bit keys you must enter 10 hex digits into each key box. For 128 bit keys you must enter 26 hex digits into each key box. A hex digit is either a number from 0 to 9 or a letter from A to F.

You may also enter any text string into a WEP key box, in which case it will be converted into a hexadecimal key using the ASCII values of the characters. A maximum of 5 text characters can be entered for 64 bit keys, and a maximum of 13 characters for 128 bit keys.

Step 5: Click on Save Settings to save your settings.

Tags: DIR-450, DIR-451, WEP, WPA

Connect a Wireless Network Using Windows 7 on D-Link DI-604 Router.

It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before configuring your wireless adapter. If you are joining an existing network, you will need to know the security key or passphrase being used.

1. Click on the wireless icon in your system tray (lower-right corner).

2. The utility will display any available wireless networks in your area.

3. Highlight the wireless network (SSID) you would like to connect to and click the Connect button.
If you get a good signal but cannot access the Internet, check your TCP/IP settings for your wireless adapter. Refer to the Networking Basics section in this manual for more information.

4. The following window appears while your computer tries to connect to the router.

5.Enter the same security key or passphrase that is on your router and click Ok.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.

Tags: DI-604, WPA

WPA is a more powerful security technology for Wi-Fi networks than WEP. It provides strong data protection by using encryption as well as strong access controls and user authentication. WPA utilizes 128-bit encryption keys and dynamic session keys to ensure your wireless network’s privacy and enterprise security.

There are two basic forms of WPA:

• WPA Enterprise (requires a Radius server)
• WPA Personal (also known as WPA-PSK)

Either can use TKIP or AES for encryption. Not all WPA hardware supports AES.

WPA-PSK is basically an authentication mechanism in which users provide some form of credentials to verify that they should be allowed access to a network. This requires a single password entered into each WLAN node (Access Points, Wireless Routers, client adapters, bridges). As long as the passwords match, a client will be granted access to a WLAN.

Encryption mechanisms used for WPA and WPA-PSK are the same. The only difference between the two is in WPA-PSK, authentication is reduced to a simple common password, instead of user-specific credentials.

The Pre-Shared Key (PSK) mode of WPA is considered vulnerable to the same risks as any other shared password system – dictionary attacks for example. Another issue may be key management difficulties such as removing a user once access has been granted where the key is shared among multiple users, not likely in a home environment.

Tags: PSK, WPA, WPA-PSK

The PSP (PlayStation® Portable) only supports WPA, not WPA2. If you are using WPA/Auto, you may need to lock the router to WPA only (firmware 1.07 or higher). This will allow you to connect to your PSP. To switch to WPA only, follow these steps:

Step 1: Open a web browser and type the IP address of the DIR series(D-Link DIR-655) router into the address bar (default is http://192.168.0.1).

Step 2: The default username is admin (all lower case) and the default password is blank (nothing). Click on OK.

Step 3: Click on the Setup tab at the top and then click on Wireless Settings on the lefthand side.

Step 4: From the Wireless Security Mode dropdown menu, select WPA-Personal.

Step 5: From the WPA dropdown menu, select WPA Only.

Step 6: Under Pre-shared Key, enter the desired Pre-Shared Key.

Step 7: Click on Save Settings to save your settings.

Tags: DIR-655, PSP, WPA

Step 1: Open a web browser and type the IP address of the D-Link DIR series router into the address bar (default is http://192.168.0.1). Press Enter

Step 2: The default username is admin (all lower case) and the default password is blank (nothing). Click on OK.

Step 3: Click on the Setup tab at the top and then click on Wireless Settings on the lefthand side.

Step 4: From the Wireless Security Mode dropdown menu, select WPA-Personal encryption.

Step 5: From the WPA Mode dropdown, Under WPA, select the form of WPA you would like to use.

Use WPA or WPA2 mode to achieve a balance of strong security and best compatibility. This mode uses WPA for legacy clients while maintaining higher security with stations that are WPA2 capable. Also the strongest cipher that the client supports will be used.

For best security, use WPA2 Only mode. This mode uses AES(CCMP) cipher and legacy stations are not allowed access with WPA security.

For maximum compatibility, use WPA Only. This mode uses TKIP cipher. Some gaming and legacy devices work only in this mode. To achieve better wireless performance use WPA2 Only security mode (or in other words AES cipher).

Step 6: In the Pre-Shared Key box, enter the desired Pre-shared key.

This is the “password” that allows communication between you’re encrypted client (e.g. the PSP or your wireless computer) and the encrypted wireless signal coming from the router. This password must contain at least 8 characters, the characters can be anything you can create from your keyboard.

Step 7: Click on Save Settings to save your settings.

Tags: router, WPA