How to access internet through a laptop wireless network?

Question

i' ve 3 laptops and set already wireless network between them, one of them is connected to ADSL internet with cable. how to share it in wireless network for accessing other two laptops?

Answer 1

http://www.youtube.com/watch?v=3lNqqryPB...

doesn't work with vista though

but this video will get you connected

Answer 2

Configuring the Host Computer (laptop with internet)

After you install an 802.11b adapter on a computer, Windows XP will automatically detect the card, install drivers, and display an icon in the notification area. If the computer is in an environment where other wireless networks are in range, Windows should display a list of available networks automatically. However, if no wireless networks are in range, the wireless connection icon may display a red “X” and may not automatically open a View Wireless Networks window. To open this window, click the icon for the wireless connection.

Do not select an available network at this time if any are displayed in the Available networks listing. If your computer previously connected to a preferred access point, remove all preferred access points. This will ensure that a connection is made only to the ad hoc network that you are trying to configure.

Next, click the Advanced tab at the top of the window. Select Computer to computer (ad hoc) networks only and clear the Automatically connect to non-preferred networks box if it is selected. This setting, along with removing preferred networks, ensures connection to the ad hoc network only.

Click the Wireless Networks tab again. Under Preferred Networks, click Add, as shown in Figure 1. In the Wireless Network Properties dialog box, specify a Network name (SSID). Use any name desired, but be sure to use it to configure all computers. Note that the network type is already marked as a computer-to-computer network and that this cannot be changed since it has already been specified that a connection should be made to only ad hoc networks.

Wireless Equivalency Protocol (WEP) settings are not being configured at this time because it's easier to get an ad hoc wireless network running smoothly before attempting to configure WEP data encryption. The decision on whether or not to use WEP should be based on your environment. In most cases, for optimum protection and security, after your ad hoc network is running properly, you should return to Wireless Network Properties and specify WEP settings.

After configuring the network name (SSID) in the Wireless Network Properties dialog box, the new ad hoc network will be displayed with a PC Card icon to designate that this is a computer-to-computer network.

Note the red X. When a second computer is in range and the new ad hoc network is connected, the display changes to show a working computer-to-computer network without the X.

Configuring a Client Computer (comps without internet)

The new ad hoc network is listed (and is identified by the PC Card icon). Highlight the network name, and then click Configure. Because WEP will not be configured at this time, click OK.

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Sharing the Connection

Now that a successful ad hoc wireless network has been created, we'll set up Internet Connection Sharing.

1. Open Network Connections on the host computer. (Click Start, click Control Panel, click Switch to classic view, and then click Network Connections.

2. Click the connection to be shared, and under Network Tasks, click Change settings of this connection.

3. On the Advanced tab, select the Allow other network users to connect through this computer's Internet connection check box.

4. If you are not using a third party firewall and have not already set up the Internet Connection Firewall (ICF), be sure to check the box enabling this feature. (Read more about why to enable ICF in an earlier column, Don't Let the Defense Rest.)

5. Finally, optionally enable the setting to let other users control or enable this connection.

After completing ICS configuration, the Network Connection window on the host computer will display the original wired Ethernet connection and display the status as Shared as well as Enabled. The Network Connection window on the client computer will display the connection on the host as an Internet Gateway.

Configuring WEP (security so others cant get in)

As connectivity has now been established successfully, the next step is to return to Network Properties and configure WEP settings to ensure the best security possible for the ad hoc network.

On the host computer, open the Wireless Network Properties dialog box and select the Data encryption (WEP enabled) check box. Consult the documentation provided by your wireless card manufacturer for the key format and key length.

Use the highest level of encryption possible (key length) that is supported by your hardware and drivers. Agere's Orinoco Silver cards are used here, and only support 64-bit WEP (also known as 40 bits). Using the latest drivers and firmware, Windows XP actually automatically detects that this hardware only supports 64-bit encryption and will not allow setting the key to 128 bit. Be sure that if you use an ASCII network key that you pick random characters and letters that can't be easily guessed. The final step is to use the same key and encryption settings and configure the client computer(s). Note: for additional security, consider changing the key on a regular weekly basis.