An method for M2M communications and an M2M node are disclosed. The M2M node provides a communication management function for communication between a first service layer in a first network and a second service layer in a second network. The M2M node receives a first message from a first application in the first service layer. The first message encapsulates a second message. The M2M node determines based on at least a first attribute identifying an expiration time after which the communication management function does not facilitate communication, that the communication management function is available to process the first message. The M2M node determines based on at least a second attribute defining an access control list identifying applications in the first service layer for which the communication management function may provide processing, that the communication management function is available to process the first message from the first application.