ReScan : High performance mass scan responder

It is currently challenging to let students run internet-wide scans using real tools such as ZMap or MASSCAN. If they were to perform these scans on the real internet they will not all obtain the same results, making assessment hard and not scalable for larger groups of students. Furthermore, we believe it to be beneficial to provide a virtual environment for students to experiment in before interacting with real-world networks, machines, network operators and internet service providers and cause real-world consequences. No such simulated environment exists for the internet-wide scale these tools operate on. Therefore we propose an approach to create a virtual internet that can intercept and respond to probes at the scale and the speed of these mass scan tools. We create a working version of this approach and experimentally verify that this approach sufficiently reaches its goals.