Also found in: Wikipedia.
IPCONFIG(Internet Protocol CONFIGuration) A Windows command line utility that is used to manage the IP address assigned to the machine it is running in. Used without any additional parameters, it displays the computer's currently assigned IP, subnet mask and default gateway addresses. IPCONFIG has several command line switches (parameters) preceded with a slash (see list below). The Mac counterpart is IFCONFIG. See NSLOOKUP and netstat.
IPCONFIG COMMAND LINE SWITCHESReporting Displays no switch IP, subnet mask & default gateway addresses /all the above + hostname, MAC address, DNS server addresses, etc. /displaydns contents of DNS cache /showclassid all DHCP class IDs for adapter Management Action /release release IP address /renew renew IP address /flushdns purge DNS cache /registerdns refresh leases & reregister DNS /setclassid update DHCP class ID