Hi. Any one know how to block a MAC address from DHCP or through other means? I got a guy who is connecting a laptop at all sorts of odd times to my network. Unfortunately he is also using a fixed IP address which clashes with my file server. I have his laptopís MAC address but nothing else and I need to block him through his MAC only. Is there any way of doing this through either DHCP or other software? I also tried blocking him on the switches. I use HP Procurve intelligent switches but can not find any options on their setup menus to block a MAC address. Any ideas?
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blocking a MAC address