I used to use a network Emulator+Physics/Traffic Simulator called NCTUns to research vehicle networking back in 2010. I remember it was pretty cool. If I recal

I used to use a network Emulator+Physics/Traffic Simulator called NCTUns to research vehicle networking back in 2010. I remember it was pretty cool. If I recall correctly, I could run several instances of all kinds of networking gear, configure wireless interfaces, place physical barriers, roads, etc... then I could see how packets and routing tables would behave while the emulated instances of routers/switches/APs moved around the physical world. Pausing the would, clicking on a little car, and serialing into a particular router that was running Cisco IOS was always pretty mind blowing to me though. They had all kinds of custom protocols that could route network traffic depending on which direction the traffic was flowing: you didn't want packets to get stuck in loops, hopping back and forth between oncoming traffic. Especially in sparse environments. I don't know what happened to it, it looks like it got spun off into a commercial company: http://nsl.cs.nctu.edu.tw/NSL/nctuns.html http://nsl.cs.nctu.edu.tw/NSL/nctuns.html