A method, apparatus, and computer-readable media for transferring data from a first network to a second network through a network device, comprising. It comprises receiving a frame of the data from the first network, the frame comprising an internet protocol address; transmitting the frame to a media access controller of the network device; transmitting the frame from the media access controller to a processor of the network device, wherein the processor modifies the internet protocol address; transmitting the frame from the processor to the media access controller; and transmitting the frame from the media access controller to the second network.