I have a desktop computer running Ubuntu 12.04. I have installed DRBL to handle DHCP server and Clonezilla Server. I have a network card in my desktop with 2 ports in it. These 2 ports are bonded together and are used by DRBL. There is a 3rd port integrated in the motherboard. I want to use this 3rd port for internet. DRBL knows that this is set for internet. EDIT: "Ubuntu Network-Manager has stopped recognising the connections (device not managed)." - I have now uninstalled Network-Manager. It use to say that eth1 was default (first port in the network card) I want eth0 to be default as that is the Internet port.
How do I make eth0 as the default port without using Network-Manager?