![]() This is especially true if the network relies on MAC address controls or DHCP reservations with specific policies tied to IP addresses or IP address ranges. In private and corporate networks, MAC address randomization is seen as a hindrance to policy enforcement and a nuisance on the network. WatchGuard already uses this knowledge to determine if a client device is using its real MAC address or not and filters out these addresses in some analytics reports. ![]() For a simple rule, any MAC address where the first octet ends with 2, 6, A, or E is a random MAC address. The mechanism to generate private MAC addresses hasn’t changed, making it possible for access points and network equipment to determine if the address that a device is probing with is real or fake. While this implementation is somewhat unique in that it does more to protect user privacy, this is not the first time this feature has been added to operating systems. Apple has made headlines for their iOS 14 update that enables randomized Mac addresses by default. For those running the latest operating systems for your computers, phones, and tablets, you may have noticed the changes to how your device connects to wireless networks.
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