On Tue, Dec 7, 2010 at 6:23 AM, Mathieu Baudier <mbaudier at argeo.org> wrote: >> > b) Do I get charged by my ISP on a per-device basis? >> > This is no science fiction. > Some big providers in some countries limit the number of device that > can connect to internet. You have to register the MAC address of your > single PC (which, by the way, is expected to run Windows or MacOS) > > In that case, a NAT router sending the MAC address expected by the > provider could have (maybe, possibly...) been very handy. > (I won't tell more, even though I have left the country and the > provider in question) I've had such a provider. This is why you can assign a MAC address to a dsl router's WAN interface.