A method for mobile node operations includes communicating with a first point of attachment in a first radio network through a radio interface tuned to the first radio network, and encapsulating a first frame in a second radio network format within a media independent control frame. The method also includes transmitting the media independent control frame with the first frame in the second radio network format encapsulated therein to a second point of attachment in a second radio network using the radio interface tuned to the first radio network.