Patent ID: 9634987
Date: 2017-04-25
CPC Classifications: H04L

Claim:
1. A non-transitory computer readable medium comprising instructions which, when executed by a processor, causes the processor to: transmit a first message from a client device to a network device and an echo device, wherein the network device responds to a first format of message and the echo device response to a second format of message; determine a format of the first message transmitted by the client device to the network device and the echo device; based on the determined format of message transmitted by the client device, determine at the network device or the echo device, a media access control (MAC) address of the client device, wherein the MAC address is determined in response to the first message; and receive, at the client device, a second message including the MAC address of the client device, wherein the second message is transmitted in response to the first message; the first message is generated by an application executing on the client device; the application is blocked from accessing the MAC address of the client device when generating the first message; and the application accesses the MAC address of the client device from the second message.