Linux Force DHCP client (dhclient) to renew ip address
May 17, 2010The -r flag explicitly releases the current lease, and once the lease has been released, the client exits. For example, open terminal and type the command:
sudo dhclient -r
Now obtain fresh IP:
sudo dhclient
There is no need to restart network service. Above command should work with any Linux distro such as RHEL, Fedora, CentOS, Ubuntu and others. On a related note you can also try out the following commands:
ifdown eth0
ifup eth0
/etc/init.d/network restart
or
/etc/init.d/networking restart