Hi, I have two questions about networking. 1) When applying MAC address filtering on my belkin router am I correct in assuming that it will apply to all network cards, both wired and wireless? 2) I have a network at home that two of my housemates use to access the internet. We do not do any kind of file sharing etc. I have recently installed Ubuntu on an old laptop of mine and would like to be able to access files and the printer on my desktop. Is it possible to set up a sub-network that allows me to file and printer share between the desktop (winxp) and the laptop (ubuntu), that does not allow the other computers connected to the router access to my files etc? I know that Ubuntu and Windows XP will network together, I just don't know how to go about it and ensure that my housemates can't access my computers or me their. Will.