Router and MAC addresses with WI-FI
Hi. If I build a router, a PC with GNU/Linux or BSD, which will share Internet access to several other machines in LAN with various OSes, can I divide Internet access basing on MAC addresses of computers to allow some of them access and prevent for others, having WI-FI users in this LAN? (So I'll be able to close Internet access for any machine at any time even if they get it through WI-FI.) And if yes, what software does this part of job?