This is totally worth reading just for the the 3D text diagrams. and more. https://www.ietf.org/archive/id/draft-thubert-v6ops-yada-yatt-03.html -- I tried to build a better future, a few times: https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org Dave Täht CEO, TekLibre, LLC