Hi. I'm looking for script which could give access to internet for only one mac from for example three. This is a situation: somebody has 3 PC's at home but pays only for one, the first PC which he turn on would get access (beacause it was first) and if he want to have access on the second, he must turn off the first one and so on... In access restriction it is impossible to do. Maybe iptables can bring me such possibility?