Mimicry transformation method, device and system of Ethernet gateway

The invention discloses a mimicry transformation method, device and system for an Ethernet gateway. The method comprises the following steps: respectively forwarding received data to an application protocol stack of each heterogeneous processor in the Ethernet gateway by utilizing a dispatcher; processing the received data by using each application protocol stack, respectively forwarding the processed data to a mimicry voter, and outputting a judgment result by the mimicry voter; and when a certain application protocol stack is found to be attacked based on the judgment result, performing multi-dimensional dynamic reconstruction based on an unattacked application protocol stack by utilizing a dynamic reconstructor, recovering the correctness of the attacked application protocol stack, and ensuring the normal operation of the Ethernet gateway by utilizing the unattacked application protocol stack at the same time. According to the method, attacks of some unknown vulnerabilities and backdoors can be better defe