Relate to: System utility, Network, Console

Default location: %WinDir%\System32\ipconfig.exe

Useful information about: ipconfig.exe

Description: IP Configuration Utility

Version: 6.0.6000.16386 (vista_rtm.061101-2205)

Size: 26112 (25K)

MD5: 1FA8C5689C2227010178F88B70307887

Ipconfig.exe is a command-line tool you can use to renew and release leases obtained from a Dynamic Host Configuration Protocol (DHCP) server, and display your IP settings.

USAGE:

ipconfig [/allcompartments] [/? | /all |

/renew [adapter] | /release [adapter] |

/renew6 [adapter] | /release6 [adapter] |

/flushdns | /displaydns | /registerdns |

/showclassid adapter |

/setclassid adapter [classid] ]

where

adapter Connection name

(wildcard characters * and ? allowed, see examples)

Options:

/? Display this help message

/all Display full configuration information.

/allcompartments Display information for all compartments.

/release Release the IPv4 address for the specified adapter.

/release6 Release the IPv6 address for the specified adapter.

/renew Renew the IPv4 address for the specified adapter.

/renew6 Renew the IPv6 address for the specified adapter.

/flushdns Purges the DNS Resolver cache.

/registerdns Refreshes all DHCP leases and re-registers DNS names

/displaydns Display the contents of the DNS Resolver Cache.

/showclassid Displays all the dhcp class IDs allowed for adapter.

/setclassid Modifies the dhcp class id.

The default is to display only the IP address, subnet mask and

default gateway for each adapter bound to TCP/IP.

For Release and Renew, if no adapter name is specified, then the IP address

leases for all adapters bound to TCP/IP will be released or renewed.

For Setclassid, if no ClassId is specified, then the ClassId is removed.

Examples:

> ipconfig ... Show information

> ipconfig /all ... Show detailed information

> ipconfig /renew ... renew all adapters

> ipconfig /renew EL* ... renew any connection that has its

name starting with EL

> ipconfig /release *Con* ... release all matching connections,

eg. "Local Area Connection 1" or

"Local Area Connection 2"

> ipconfig /allcompartments ... Show information about all

compartments

> ipconfig /allcompartments /all ... Show detailed information about all

compartments

Read more: http://support.microsoft.com/kb/223413

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