I need to start eth0 network interface during boot, but only if cable is plugged in. I have following in my /etc/network/interfacesauto loiface lo inet loopbackauto eth0iface eth0 inet dhcpThe problem is, when the cable is not plugged in, the computer still tries to reach the dhcp server and it takes long time to time out and eventually boot.Is there some way to skip the eth0 configuration if link is not detected?I am using Debian Wheezy
ifup eth0 timeout during boot
networking;boot;networkcard