I have a home LAN that will soon have ADSL access. I am trying to
give only some of the users on my LAN Internet access while
prohibiting others from doing so. One method I thought of is matching
IP addresses to corresponding mac addresses. That is, my Linux server
will check to make sure that a certain computer that has been assigned
a certain IP address will have a certain mac address before access is
given. I haven't been able to locate such an option in the I.P.
Masquerading software or the IPChains software. I do not want to
modify the C++ source code to do so unless it is absolutely necessary.
Any other suggestions is welcomed.