In an embodiment, a first client device establishes a P2P connection with a second client device. While the P2P connection is still established, the first client device receives a request to send data to the second client device via the P2P connection, and then sends the data to a server along with an indication of a temporary identifier of the second client device without notifying an operator of the first client device that the data is being sent to the server. In another embodiment, the server receives the data, maps the temporary identifier to a unique network address of the second client device and generates a record of the data transmission between the respective client devices. In another embodiment, the server maintains an association for the temporary identifier after the first and second client devices are disconnected from their P2P connection to permit supplemental communication.