Virtual ethernet and ispcp_network daemon

[Nuxwin]

All this will improved. For some reasons (eg /etc/network/interfaces file is not available with all dists), the on the fly configuration at boot must be conserved. The next implementation will detect automatically the network configuration such as the Ip addresses that are added from GUI or configured in another way (eg. with scripts, manually...). With the next implementation, it will be possible to disable an interface or an IP address even if it has not been added via the GUI.