def get_device(self):
        """
        Returns a reference to the device that is represented by this node.
        Returns None if no such device can be determined.
        """
        addr = self.address
        servers = [server for server in pyrax.cloudservers.list()
                if addr in server.networks.get("private", "")]
        try:
            return servers[0]
        except IndexError:
            return None