A method and apparatus for identifying resources available at a device in a communication network. A Resource Directory Proxy node receives a first message from the device. The first message relates to a change in at least one resource available at the device. The Resource Directory Proxy then sends, to a Resource Directory node selected from a set of Resource Directory nodes, a second message. The second message includes the change in the at least one of the resources available. There is also provided a method and apparatus for providing data from the device is provided. A Mirror Proxy Proxy node receives from the device a data message that includes an identity of the device and data obtained by the device. The Mirror Proxy Proxy node selects, from a set of Mirror Proxy nodes, a Mirror Proxy node, and sends to the selected Mirror Proxy node a further data message, the further data message including the identity of the device and the data obtained by the device.