Hacked my school wi-fi , i want to make its security better

#1

Greetings Everyone… So Im just beginning with pentesting… but the other day i was at school and i hacked into my schools network. i then noticed it had a login page which asked for a voucher code. I proceeded to randomly type numbers but it didnt work… after doing this i proceeded to make a scan of the network. i then got mac addresses of device`s on the network and decided to try changing my mac address to one of those… so this worked. i got complete access to the network… i was wondering what other different measures they are to restrict the access of devices on a network apart from their mac address… would be great to hear what you guys think…

#2

Only if you have access to the router admin page, 192.168.1.1 or something similar, then you will be able to set a DHCP rules to filter any Mac address that is not assigned to the router.