The Internet uses an IP address -- a 32-bit number represented in dotted-decimal notation -- as a unique identifier to determine the location of a computer. Each PC that connects to the Internet is given an IP address, allowing it to communicate with other computers over the wide-area network. Internet service providers assign either a dynamic -- a temporary address -- or static -- permanent address -- IP to a customer's computer. If you're looking to set up a network in your home or office and your ISP gave you a static IP, you'll need this address to set up your router.
Click the Start button, then "Control Panel." Enter "network" into the search field and then select "Network and Sharing Center" from the results.
Click "Change Adapter Settings." Double-click "Local Area Connection" if the computer is connected to the Internet via Ethernet; double-click "Wireless Network Connection" if the computer is connected to the Internet via a Wi-Fi network.
Click "Details." Review the information to the right of the IPv4 address field to find your static IP.
Command Line Method
Click "Start | All Programs | Accessories | Command Prompt." Type "ipconfig" (without the quotes) into the prompt.
Press "Enter" to view your network details. Scroll up to the section named Ethernet Adapter Local Area Connection if connected to the Internet via a wired connection; scroll up to the section named Wireless LAN Adapter Wireless Network Connection if on a Wi-Fi network.
Review the information to the left of the IPv4 Address field to find your static IP address.
- If you are setting up your Internet connection for the first time, contact your ISP for information about your service.
- You'll also need to know the default gateway and subnet mask to configure your router. You can obtain this information using the same methods as finding the IP address.
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