Systems and methods are disclosed herein for obtaining data about a network having at least a first node and a second node. A server transmits to the first node a first request for the first node to send a communication to the second node. The server is outside of the network, and the first request includes a first address of the first node and a second address of the second node. The server receives, from the first node, an indication of whether the communication to the second node is successful. The server receives, from the first node, a second request for access to a file stored on the server, determines that the file is stored locally at the second node, and transmits, to the first node, an instruction to retrieve the file from the second node, when the communication to the second node is successful.