Originally Posted by rd813
hehe..nice answer..but if you are at my place..this "network admin" is so damned arrogant and cocky when he talk about his skill..and one more thing he also download torrent..my curiosity is how they block it?
Then I don't think here is the right place to report your admin's [alleged] misbehavior.
Blocking MAC address is quite straightforward, at least with Linux. If that is the case, he may be just setting iptables rules against you. Perhaps this could be done by configuring dhcpd too. Also there's arpwatch for auditing LAN activities.