hi all , i'd wan't to ruin a guy in my lan , we are 10 in our lan at school , and i want to ruin his Mac adress so he wont use internet anymore , how can i ruin it ? cause a guy told me that he did it before but not how to do , someone know ? i just know that u need to ruin his mac adress with cmd or smth like that , cause he banned me from his server and i want change my mac ip , and i want to ruin his one
ps : sorry for my english , if u didn't understand something just tell me i will explain better
pss : i posted here cause i don't know where to post sorry ,