Legitimate network scanners can no longer read MAC addresses, which means all administrators can go by now are IP addresses. What Does This Mean for Legitimate Network Scanners? I won’t say whom, but I think we can all guess. A MAC address is unique to one particular device, and certain apps were using that information to track users. Thanks to developers misusing that information, apps can’t use the ARP table to view MAC addresses on iOS 11 anymore. This is what maps an IP address to your specific device’s network connection. In previous versions of iOS, apps had access to MAC addresses by way of the address resolution protocol (ARP) tables stored within the device. This applies to Ethernet, Wi-Fi, and Bluetooth network devices. An important piece of network administration is now missing from Fing - the MAC address - because of changes in iOS 11 What’s the Deal With Being Able to View MAC Addresses on iOS 11?Ī MAC address, or a media access control address, is a unique identifier for a network interface. Thanks to the unscrupulous misuse by some developers, apps can’t view MAC addresses on iOS 11 any longer. For that matter, anybody who uses their iOS device to manage or secure a network, home or otherwise, is impacted. One change in iOS 11 will frustrate many network administrators.
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