Explore VLAN hopping, ARP poisoning, and Man-in-the-Middle attacks in virtualized environments through this comprehensive conference talk from ANYCon 2017. Delve into the publication history of the research, key questions, and potential consequences. Examine various test scenarios and results using both old and new hardware specifications. Witness demonstrations of VLAN hopping attacks, including switch spoofing and double-tagging, across different network configurations. Gain insights into the Address Resolution Protocol (ARP) process, ARP spoofing results, and mitigation strategies. Conclude by comparing virtual and physical environments in terms of security vulnerabilities and countermeasures.