ipconfig (standing for "

Internet Protocol The Internet Protocol (IP) is the network layer communications protocol in the Internet protocol suite for relaying datagrams across network boundaries. Its routing function enables internetworking, and essentially establishes the Internet. IP ...

configuration") is a console application program of some computer

operating system An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for ...

s that displays all current

TCP/IP The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suite are ...

network configuration values and refreshes

Dynamic Host Configuration Protocol The Dynamic Host Configuration Protocol (DHCP) is a network protocol, network management protocol used on Internet Protocol (IP) networks for automatically assigning IP addresses and other communication parameters to devices connected to the netw ...

(DHCP) and Domain Name System (DNS) settings.

Implementations

The command is available in

Microsoft Windows Windows is a Product lining, product line of Proprietary software, proprietary graphical user interface, graphical operating systems developed and marketed by Microsoft. It is grouped into families and subfamilies that cater to particular sec ...

ReactOS ReactOS is a Free and open-source software, free and open-source operating system for i586/amd64 personal computers that is intended to be binary-code compatibility, binary-compatible with computer programs and device drivers developed for Wind ...

, and in

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macOS macOS, previously OS X and originally Mac OS X, is a Unix, Unix-based operating system developed and marketed by Apple Inc., Apple since 2001. It is the current operating system for Apple's Mac (computer), Mac computers. With ...

. The ReactOS version was developed by Ged Murphy and is licensed under the GPL.

Microsoft Windows, ReactOS

The ipconfig command supports the command-line switch /all. This results in more detailed information than ipconfig alone. An important additional feature of ipconfig is to force refreshing of the DHCP IP address of the host computer to request a different IP address. This is done using two commands in sequence. First, ipconfig /release is executed to force the client to immediately give up its lease by sending the server a DHCP release notification which updates the server's status information and marks the old client's IP address as "available". Then, the command ipconfig /renew is executed to request a new IP address. Where a computer is connected to a cable or DSL modem, it may have to be plugged directly into the modem network port to bypass the router, before using ipconfig /release and turning off the power for a period of time, to ensure that the old IP address is taken by another computer. The /flushdns parameter can be used to clear the Domain Name System (DNS) cache to ensure future requests use fresh DNS information by forcing hostnames to be resolved again from scratch.)

Apple macOS

ipconfig in Mac OS X serves as a wrapper to the IPConfiguration agent, and can be used to control the

Bootstrap Protocol The Bootstrap Protocol (BOOTP) is a computer networking protocol used in Internet Protocol networks to automatically assign an IP address to network devices from a configuration server. The BOOTP was originally defined in published in 1985. Whi ...

and DHCP client from the command-line interface. For example, you can release and renew an IP address if it happened to be assigned incorrectly by the DHCP server during the automated assignment process. Like most

Unix Unix (, ; trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, a ...

-based operating systems, Mac OS X also uses

ifconfig 






ifconfig (short for ''interface config'') is a system administration utility in Unix-like operating systems for  network interface configuration.

The utility is a command-line interface 




A command-line interface (CLI) is a means of inter ...

for more direct control over network interfaces, such as configuring static IP addresses. The Ifconfig command in Linux has been replaced by the IP command

References

External links

*Windows
Microsoft TechNet Ipconfig article

VariableGHz article detailing ipconfig settings in Vista

ipconfig
documentation for

Windows Windows is a Product lining, product line of Proprietary software, proprietary graphical user interface, graphical operating systems developed and marketed by Microsoft. It is grouped into families and subfamilies that cater to particular sec ...

*Mac OS X ** {{Windows commands Windows communication and services Windows administration MacOS-only software made by Apple Inc.

Implementations

Microsoft Windows, ReactOS

Apple macOS

See also

References

Further reading

External links