I've a script to automatically block internet access after 11pm (23:00) and restore it at 6am (06:00). The script adds and remove some drop rules in iptables.
Unfortunately the filtering rule refers to the IP address. Since the user may easily change its ip address by hand he may thus bypass the filter.
The question is if its possible to define an IP table DROP rule that filters on ethernet address ?
PS: I expect an example as answer, not a simple yes or no ! ;)