(IP 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); for example, ipconfig /all displays a variety of data, including the computer's name (host name), Ethernet MAC address and DNS server addresses. See NSLOOKUP and netstat.
IPCONFIG COMMAND LINE SWITCHES
Reporting Displays
no switch IP, subnet mask & default
gateway addresses
/all above + host name,
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
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