Windows operating system provide
ipconfig command for network related administration like show ip address, request IP address from DHCP set IP address etc. In this tutorial we will look how can we release and renew IP address. For more information about
ipconfig command read following tutorial.
Open Command Prompt
We can open command prompt in different ways. The easiest way is
Run and type
cmd and press enter like following screenshot. Click open will start MD-DOS.
List Current IP Address
We can list current interfaces and their related IP addresses with the
ipconfig command like below.
Release All IP Address
As we see that we have IP address assigned to the interface Local Area Connection. We should first release the IP address with
ipconfig /relase . This will release all IP addresses of all interfaces
> ipconfig /release
Release Specific Interface IP Address
In previous example we have released all interfaces all IP addresses. This is not useful if we have multiple interfaces and we only want single interfaces IP address to release. We can specify the interface name to release given interface IP address. In this example we will only release IP address of
Local Area Connection . Be warned that the name of the interface should be correct to work properly.
> ipconfig /release "Local Area Connection"
Renew IP Address
In order to get new IP address from DHCP server we should renew our IP address with
ipconfig /renew command like below. This will run DHCP mechanism and get new IP address from the DHCP server. But some DHCP servers prefer to provide same IP address for same MAC address.
> ipconfig /renew