I am hoping to connect a Win XP and Ubuntu to an Orange Livebox with ethernet connections. The XP is very close to the Livebox and therefore no problem, however the Ubuntu machine will need a 25m ethernet cable. Will a standard cable do, or will it have to be shielded cable ( not normally available in France at those lengths)? Wireless connection is not an option due to the very thick walls of old French houses and my very limited understanding of the subject! Thanks for any help.
You should have no problem with a good cable. I have a 30M trailing BB Cable from my phone socket (Dual phone and filter) supplied by BT and it works well. So it should be the same with an ethernet cable. Offices use much longer cables than that!