Dynamic IP addresses are the most common method of assigning an IP address to a network based device (such as a computer, printer, etc) because it reduces the network administration overhead. Today's office and work force are in a constant state of flux. People with mobile devices (such as tablets, smartphones, and laptops) will move from location to location, even desktop users can get moved around within a company on a semi-regular basis.
Note: If a Windows client makes a DHCP request for an IP address and doesn't get a reply in a timely manor, then it will switch to using Automatic Private IP Addressing (APIPA). APIPA is a private IP address range (169.254.0.0 to 169.254.255.255) that allows devices on a network using this address range to communicate with themselves. To configure this service, click on the Alternate Configuration tab in the Internet Protocol (TCP/IP) dialog.If all devices used a static IP address, it would cause a network administration nightmare, they would all have to be changed every time a device was moved. Most static IP addresses are assigned to servers or network based devices like routers or DNS servers. These devices need a static IP address because other devices on the network depend on knowing how to contact them.
To configure the TCP/IP addressing (dynamic or static) in Windows, follow the instructions below:
- From the Start screen, type Network and click Settings on the right. Click the Network and Sharing Center icon. In the left pane, click the Change adapter settings link.
- Right-click the active network connection (note: this selection can change between systems depending on the equipment that is installed), and select Properties.
- Select Internet Protocol Version 4 (TCP/IPv4) [or Internet Protocol Version 6 (TCP/IPv6) depending on how your network is configured] and the press the Properties button.
- To find the TCP/IP address of the local computer, from the command prompt type: IPCONFIG /ALL.
- To request a new DHCP address, from an administrator command prompt type: IPCONFIG /RELEASE and then type: IPCONFIG /RENEW