This diagnostic command displays all current TCP/IP network configuration values. This command is useful on computers running DHCP because it enables users to determine which TCP/IP configuration values have been configured by DHCP. If you enter only ipconfig without parameters, the response is a display of all of the current TCP/IP configuration values, including IP address, subnet mask, and default gateway.
Syntax
ipconfig [/all | /renew [adapter] | /release [adapter]]
Parameters
all
Produces a full display. Without this switch, ipconfig displays only the IP address, subnet mask, and default gateway values for each network card.
renew [adapter]
Renews DHCP configuration parameters. This option is available only on computers running the DHCP Client service. To specify an adapter name, type the adapter name that appears when you use ipconfig without parameters.
release [adapter]
Releases the current DHCP configuration. This option disables TCP/IP on the local computer and is available only on DHCP clients. To specify an adapter name, type the adapter name that appears when you use ipconfig without parameters.