On Thu, Nov 28, 2013 at 9:07 PM, Leo Vegoda <leo.vegoda@icann.org> wrote: ....
Is a /60 what is considered generous these days?
I do not think so. I think that is more minimal than generous.
I thought a /48 was considered normal and a /56 was considered a bit tight. What prefix lengths are residential access providers handing out by default these days?
A /60 appears (by reports from AT&T and Comcast customers) seems to be the current behavior for some residential access providers. I am sure one can find counter examples. And while I can rationalize the thinking (I suspect few home users currently use more than 16 internal networks), with solutions that will eventually depend on further prefix sub-delegation downstream (aka HIPNet), /60 feels a bit tight. I would certainly feel more comfortable seeing the providers start offering at least a /56, if not a /48, if requested by the customer. It is conceivable that the residential providers intend to offer more than a /60 at additional costs (as they offer more than one IPv4 address today), or to offer more than a /60 only to those that request it (to minimize some perceived "waste" of IPv6 numbers). I would expect that "Business" customers will almost certainly see different offerings (/48s?). It is also conceivable that the residential providers have not (yet) thought it all through. Gary