Scanners and printers can be redirected over a WAN in an efficient manner by employing a proxy device. When a client terminal has established a remote display protocol connection with a server over a WAN and attempts to redirect a printer, scanner, or other similar device over the connection, the device can instead be redirected to a proxy device that is on the same LAN as the client terminal. The proxy device can then establish a driver mapping connection with the server for the purpose of sending commands pertaining to the redirected device. In this way, the communications over the WAN will be simpler driver mapping commands rather than numerous USB-based IRPs and will therefore not suffer from the latency of the WAN.