| Windows Help and How-to | |
Using Internet Gateway Device Discovery and Control In this articleInternet Gateway Device Discovery and Control (IGDDC) is a Windows feature designed to help you manage Internet gateway devices (devices that connect a home network to the Internet), such as routers or base stations. With an Internet gateway device, you can share a Digital Subscriber Line (DSL) or cable modem Internet connection with all of the computers on your network. If your home network has an Internet connection through an Internet gateway device or a host computer (one that connects directly to the Internet), you can use IGDDC to monitor and change settings for the Internet connection from any computer on the network that is running Windows.
| Why use IGDDC? | | With IGDDC, anyone on the network can: | • | Remotely connect or disconnect the shared Internet connection. | | • | Open or close ports through the firewall.
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If your network has a host computer, the network administrator can control these settings and prevent other network users from accessing them. |
 | To enable IGDDC | | | | | | 1.
| Open Network Connections by clicking the Start button  , clicking Control Panel, clicking Network and Internet, clicking Network and Sharing Center, and then clicking Manage network connections. | | 2.
| Right-click the connection that you want to share, and then click Properties.  If you are prompted for an administrator password or confirmation, type the password or provide confirmation. | | 3.
| Click the Sharing tab, and then select the Allow other network users to connect through this computer’s Internet connection check box. | | 4.
| If desired, you can also select the Allow other network users to control or disable the shared Internet connection check box. | | 5.
| Optionally, to allow other network users to use services running on your network, click Settings, and then select the services you want to allow. | | 6.
| Open Network and Sharing Center by clicking the Start button , clicking Control Panel, clicking Network and Internet, and then clicking Network and Sharing Center. | | 7.
| If network discovery is set to Off, click the arrow button  to expand the section, click Turn on network discovery, and then click Apply. If you are prompted for an administrator password or confirmation, type the password or provide confirmation. |
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| The Internet gateway device icon | | If you enable ICS and then turn on network discovery in Network and Sharing Center, an Internet gateway device icon is added to the Network folder on the Start menu. For more information, see What is network discovery?  | | The Internet gateway device icon |
If you don't see the icon on your computer, make sure that: | • | Your computer is connected to the network. | | • | You have a good wireless signal (applies only to wireless networks). To check signal strength, hold your mouse pointer over the networking icon 
in the notification area. | | • | Your Internet gateway device or host computer is configured correctly and is connected to the network. |
If the icon still does not appear: | | | | 1.
| Open Network Connections by clicking the Start button , clicking Control Panel, clicking Network and Internet, clicking Network and Sharing Center, and then clicking Manage network connections. | | 2.
| Right-click the connection, and then click Diagnose. Windows will try to diagnose or repair the network connection. |
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| Using IGDDC with earlier versions of Windows | | On computers running Windows XP, the Internet gateway device icon appears in the Network Connections folder, under Internet Gateway. On computers running Windows 98 and Windows Millennium Edition, the icon appears in the Communications program group and in the taskbar. To use IGDDC on computers running Windows 98, Windows 98 Second Edition, or Windows Millennium Edition, run the Network Setup Wizard from the Windows CD or floppy disk. |
Router
A device that sends, or routes, information between two networks (for example, between a home network and the Internet). Routers find the quickest paths for sending information, which makes network connections faster. Routers can be wired or wireless.
UPnP technology __elbasuer__ UPnP technology
A networking standard that allows devices such as personal computers, peripherals, intelligent appliances, and wireless devices to connect to a network and to communicate with each other.
Digital Subscriber Line (DSL) __elbasuer__ Digital Subscriber Line (DSL)
A type of high-speed Internet connection using standard telephone wires. This is also referred to as a broadband connection.
Port
A hardware- or software-based interface used to transfer information between a computer and other devices. Hardware ports are physical connections that are visible on the outside of the computer. Software ports are the numbered gateways in programs that software programs use to exchange information.
Notification area __elbasuer__ Notification area
The area on the right side of the Windows taskbar. It contains shortcuts to programs and important status information.
Modem
A device that allows computer information to be transmitted and received over a telephone line or through broadband services such as cable or DSL. Modems are most commonly used to connect to the Internet.
Network
A group of computers or other devices, such as printers and scanners, that communicate either wirelessly or by using a physical connection, such as an Ethernet cable or a phone line.
Firewall
Software or hardware that can help protect a computer from hackers or malicious software. A firewall helps prevent malicious software (such as worms) from gaining access to a computer through a network or over the Internet, and helps prevent a computer from sending malicious software to other computers.
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Help and How-to
