> A /48 per 'site' is good, especially in the case of > businesses, for home-usage though, most very likely a /56 > will be more than enough. As such IMHO having 2 sizes, one > business, one homeuser, would not be a bad compromise, > otherwise the really large ISP's, eg the ones having multiple > million customers, would need multiple million /48's and then > the address space consumption suddenly really goes really > fast. Having /56's there would slow that down a little bit. A > /56 is still 256 /64's, and I have a hard time believing that > most people even on lists such as ARIN ppml or the various > IETF ones will ever configure that many subnets at home. I would still like to get to the bottom of this issue and understand what things a /56 assignment size will break. I strongly suspect that these things will not be of great importance to networks in the home, but I would still like to know what they are and document the issues clearly. Also, I strongly suspect that the IETF did not consider the situation of in-home networks in great detail when they reached the conclusion of /48 for all sites, because at that time, there were few, if any, companies planning Internet deployments on the same scale as the phone system. I suspect that we have grown things a bit faster than was expected. --Michael Dillon _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf