Check unauthorized Internet access
In large network of computers where data sharing takes place too often, there are risks of unauthorized Internet access by outsiders. In order to prevent integrity of your data across the network, it is significant to make it highly secure by setting up password, changing advanced settings, turning on firewall protection and creating network security key.
You can block unauthorized Internet access based on Mac addresses. Here you go:
This procedure is applicable to Mac device versions – 9.6.0 build 16 onwards. Mac address are highly secure and rarely change that becomes one of the biggest reasons to preferred them over IP addresses.