What is the the difference between WEP, WPA-Personal, WPA2-Personal, WPA-Enterprise, WPA2-Enterprise, and RADIUS ?

What's the difference between WEP, WPA-Personal, WPA2-Personal, WPA-Enterprise, WPA2-Enterprise, and RADIUS and why should each secutiy be used over others?


WEP.
This security mode is defined in the original IEEE 802.11 standard. This mode is no longer recommended because of its weak security protection. Users are urged to migrate to WPA2.
Encryption : Select a level of WEP encryption, 40 / 64 bits (10 hex digits) or 104 / 128 bits (26 hex digits).
Passphrase : If you want to generate WEP keys using a Passphrase, then enter the Passphrase in the field provided and click the Generate key.
Key 1-4 If you want to manually enter WEP keys, then complete the fields provided. Each WEP key can consist of the letters "A" through "F" and the numbers "0" through "9". It should be 10 characters in length for 40/64-bit encryption or 26 characters in length for 104/128-bit encryption.

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WPA-Personal.
WPA2-Personal is recommended.
Encryption :

The default is TKIP or AES.

Pre-Shared Key :
Enter a key of 8-63 characters.

Key Renewal :
Enter a Key Renewal period, which instructs the device how often it should change encryption keys. The default is 3600 seconds.

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WPA2-Personal.
Encryption :
The default is TKIP or AES.

Pre-Shared Key
Enter a key of 8-63 characters.

Key Renewal
Enter a Key Renewal period, which instructs the device how often it should change encryption keys. The default is 3600 seconds.

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WPA-Enterprise.
This WPA used in coordination with a RADIUS server for client authentication. (This should only be used when a RADIUS server is connected to the device.) Note: WPA2-Enterprise is recommended.

Encryption
The default is TKIP or AES.

RADIUS Server
Enter the RADIUS server's IP address.

RADIUS Port
Enter the port number used by the RADIUS server. The default is 1812.

Shared Key
Enter the key used by the device and RADIUS server.

Key Renewal
Enter a Key Renewal period, which instructs the device how often it should change encryption keys. The default is 3600 seconds.

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WPA2-Enterprise.
This WPA2 used in coordination with a RADIUS server for client authentication. (This should only be used when a RADIUS server is connected to the device.)

Encryption
The default is TKIP or AES.

RADIUS Server
Enter the RADIUS server's IP address.

RADIUS Port
Enter the port number used by the RADIUS server. The default is 1812.

Shared Key
Enter the key used by the device and RADIUS server.

Key Renewal
Enter a Key Renewal period, which instructs the device how often it should change encryption keys. The default is 3600 seconds.

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RADIUS
WPA2-Enterprise is recommended.

RADIUS Server
Enter the RADIUS server's IP address.

RADIUS Port
Enter the port number used by the RADIUS server. The default is 1812.

Shared Key
Enter the key used by the device and RADIUS server

Wireless Security

Important tips to secure the Wireless Network on the Linksys Router.

Change the default password of the Router / Access Point :

In the setup page click on Administration tab and change the password there, click Save Settings.

Enable Wireless Encryption :

In the Setup page, click Wireless and than click Wireless Security (subtab).

Setup Mac Address Filtering :

Every wireless device has a unique mac address or a physical address. The routers maintains a table that keep track of the mac addresses of all the devices connecting to them. To setup the mac address filtering, on the setup page, click Wireless tab, click Wireless Access (sub tab). By enabling this feature, you can permit / prevent only certain computers' access to the router.

Assign Static IP Addresses to the computers :

By assigning static IP Address to the computer, you wont have to rely on the router's DHCP server. Also you can change the Local IP Address on the router. Remember the IP Addresses that is being assigned to the computers is in the network range of the Local IP Address of the router. After doing this, disable the DHCP on the router. All these settings can be done from the Setup page of the router.

Disable the SSID Broadcast :

If you disable the SSID broadcast the name of the network will no longer be displayed (broadcasted). A wireless profile needs to be created on the computer. Also try not connecting to any free hotspots, as it exposes the computer to security risks. Change the security encryption at regular intervals (eg. after every 2 months)

Validating Identity.

I have a WAG160N. Im able to go online from the computers connected to the modem with ethwrnet cable. However when i try connecting from computers those are wireless, im getting this error : Windows cannot find a certificate to logon to the network.
What do i do ?


Solution :

• Right click wireless connection icon
• Click on view available wireless network
• Than click on change advance settings inte left(SP2) or Advance(SP1)
• Click the second TAB on the top [Wireless networks]
• Clear preffered networks. Click on ADD below preffered network box.
• Put in the details for the titles mentioned below

Association(Tab)

• Network Name (SSID) : Put in your wireless network name
• Data Encryption should be check
• Network Authentication(Shared mode) should be unchecked
• Uncheck the box "The key is provideded for me automatically" and put the network key and confirm it.

Authentication(Tab)

• Check Enable IEEE 802.1x
• Now uncheck Authenticate as Computer when computer info is available
• Now uncheck Authenticate as as guest when user or Computer when computer info is unavailable
• Uncheck Enable IEEE 802.1x
• Click OK. Restart the computer. Should start working.

Also if you change the wireless security to WPA2 Personal, the chances of getting the same error are minimal.

Setup WPA on Linksys Router !

How can I set up WPA on my Linksys Router?

Step 1 : Access the router’s Setup page.

Step 2 : When the router’s web-based, setup page appears, click Wireless and select Wireless Security.

Step 3 : Select WPA Personal under the Security Mode drop-down menu.

Step 4 : Select TKIP on WPA Algorithms.

Step 5 : Enter your desired WPA Key on the WPA Shared Key field such as “MyPrivateKey.” This will serve as your network key whenever you connect to your wireless network.

NOTE : Do not share this key. This key will secure your wireless network. Leave Group Key Renewal to 3600 seconds.

Step 6 : Click Save Settings.