In Windows, ipconfig is a console application designed to run from the Windows command prompt. This utility allows you to get the IP address information of a Windows computer. It also allows some control over your network adapters, IP addresses (DHCP-assigned specifically), even your DNS cache. Ipconfig replaced the older winipcfg utility. From the command prompt, type ipconfig to run the utility with default options. The output of the default command contains the IP address, network mask, and gateway for all physical and virtual network adapters. The ipconfig command supports several command line options. The command ipconfig/?displays the set of available options. This option displays the same IP addressing information for each adapter as the default option. Additionally, it displays DNS and WINS settings for each adapter as well as a whole host of additional information. This option terminates any active TCP/IP connections on all network adapters and releases those IP addresses for use by other applications. Ipconfig/release can be used with specific Windows connection names. In this case, the command affects only the specified connections, not all connections. The command accepts either full connection names or wildcard names. Examples: ipconfig /release "Local Area Connection 1"ipconfig /release *Local* This option re-establishes TCP/IP connections on all network adapters. As with the release option, ipconfig /renew takes an optional connection name specifier. Both /renew and /release options only work on clients configured for dynamic (DHCP) addressing.
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Displays all current TCP/IP network configuration values and refreshes Dynamic Host Configuration Protocol (DHCP) and Domain Name System (DNS) settings. Used without parameters, ipconfig displays Internet Protocol version 4 (IPv4) and IPv6 addresses, subnet mask, and default gateway for all adapters. Syntaxipconfig [/allcompartments] [/all] [/renew [<adapter>]] [/release [<adapter>]] [/renew6[<adapter>]] [/release6 [<adapter>]] [/flushdns] [/displaydns] [/registerdns] [/showclassid <adapter>] [/setclassid <adapter> [<classID>]]Parameters
ExamplesTo display the basic TCP/IP configuration for all adapters, type: ipconfigTo display the full TCP/IP configuration for all adapters, type: ipconfig /allTo renew a DHCP-assigned IP address configuration for only the Local Area Connection adapter, type: ipconfig /renew Local Area ConnectionTo flush the DNS resolver cache when troubleshooting DNS name resolution problems, type: ipconfig /flushdnsTo display the DHCP class ID for all adapters with names that start with Local, type: ipconfig /showclassid Local*To set the DHCP class ID for the Local Area Connection adapter to TEST, type: ipconfig /setclassid Local Area Connection TESTAdditional References |