1. A method for routing network traffic using a one-way router, comprising: receiving network traffic from one or more network traffic sources; establishing one or more source sessions with the one or more network traffic sources; selectively transmitting one or more synthetic destination application responses to the one or more network traffic sources via the one or more source sessions; transmitting the network traffic through one or more one-way data diodes each corresponding to the one or more source sessions; establishing one or more destination sessions with one or more network traffic destinations, the one or more destination sessions each isolated from the one or more source sessions by a corresponding one of the one or more one-way data diodes; transmitting network traffic from the one or more one-way data diodes to the one or more network traffic destinations via the one or more destination sessions; receiving one or more destination responses from the one or more network traffic destinations responsive to the network traffic; and selectively transmitting one or more synthetic source application responses to the one or more network traffic destinations.