Hi all, I am not really sure this is the correct newsletter for my question, if not please apologize me and suggest me a right newsletter, thanks. My goal is to simulate more than one IP interface using just a physical interface, for do that I tried using this alias Ifconfing ethX:1 <IP> But when I try to send a packet over that interface I see the IP source the same as the original, and real, Ethernet interface. Then I tried to use TAP interface but I was unable to "link" them with my physical one, I notice them can communicate each others but can not ping (ping -I tap0 <ip real IF>) the original one. It is still valid if I create a bridge with all them. I would like avoid to install many Virtual Box as I need but what I want is exactly what it do: build a new virtual interface and bridge it with a real one in order to have more IP interface attached at one physical. Any suggestion ? Thanks in advance, Pietro.