Limit users via MAC

Hi,

can someone point me in the right direction regarding user/traffic filtering via MAC.
I am trying to achive that only a device which is assigned an IP via DHCP can transfer data over internet (throuh Router)..

For example:
1x User connects his router or HomePC and ROS assignes an IP with MAC.
1x If user manualy changes the IP to some other IP in subnet it SHOULD NOT work and pass traffic!

Can I do that in ROS?
And How?

I think this will head you in the right direction. http://forum.mikrotik.com/t/preventing-any-static-ip-allocation-on-dhcp-router/52165/1

This method forces DHCP usage, and won’t allow static IP addresses because it maintains a list of MAC addresses in the ARP table.

Of course, watch out for people that will change/spoof their own MAC address to match someone elses.

Thanx I will check it!

You might also want to check this thread: http://forum.mikrotik.com/t/dhcp-only/56737/3