A piece in TechRadar says: Devices that use IPv4 to connect to the internet use less power than gadgets running on IPv6. A report by the Internet Engineering Task Force (IETF) has found, by comparing identical smartphones running on IPv4 and IPv6 respectively, that IPv6 requires roughly 5% more power to run. 5% may seem like a small amount, but when multiplied by a billion or two, that number becomes a significant energy expenditure. It then goes on to say that the solution is to forget IPv6 and instead lease IPv4 addresses. By an astonishing coincidence, the author is a guy who leases IPv4 addresses. https://www.techradar.com/news/the-environmental-opportunity-of-unused-ipv4s You do not have to tell me this is nonsense, the IETF doesn't produce reports, and certainly not reports about phone power consumption (so please don't.) But does anyone have any idea what this "report' might be? R's, John
