Among the biggest challenges with IPv6 is understanding the impacts it can have in situations in which you would not normally think a network protocol would change behavior or change what is happening. Pv6 can become frustrating, unexpectedly impactful, and, at its worst, operationally disruptive. While it is not uncommon to make regular network changes for things like Ethernet ports, virtual local area networks (VLANs), and even IPv4 network configurations, IPv6 is not well understood by many and therefore can be a mystery to those trying to work with it. The wrong configuration option or setting could have an impact that was never intended. With IPv6 being enabled and for all practical purposes preferred in the Windows operating system (OS), much greater challenges than anticipated can arise.