MitM’ing my STB (IPTV with a set-top-box)

The easiest way to do this is to create an ethernet bridge between the provider and the STB and then capture the traffic. A better solution would be to create a man-in-the-middle between the STB and the provider which can modify the traffic and thus substitute some crappy channels with the paid channels. The built-in network adapter is connected to the provider and the USB adapter is connected to the STB.

Source: xakcop.com