On Thu, May 19, 2016 at 10:19 AM, Mikael Abrahamsson <swmike@swm.pp.se> wrote:
PD: In my opinion it should be /48 by default, static and opt-in to dynamic, no extra charge on top of the Internet service price, but I know many ISPs will not agree :-( Here just trying to collect the info in a single place.
[Disclaimer] I've not been involved in ISP business for a while] but... why /48? /56 would give 256 subnets. ought to be enough for anybody IMHO (unless your definition of 'residential customer' is quite different from mine...)
My opinion is that anything between /56 and /48 is fine. As far as I know, current RIPE policy gives the ISP the option to without motivation, ask for enough IPv6 addresses to offer each customer a /48 and I'd like to keep it that way.
But you're correct, it seems most deployments are going for /56 for no more reason than that it "should work for everybody". Of course /48 works as well as it's a superset of /56. I'm not going to give anyone who gives everybody a /48 a hard time and I don't want RIPE to do it either.
Oh, don't get me wrong - I'm not going to give anyone a hard time for assigning /48 for households. I was asking only because I've spent some time recently on various v6 address plans and by default I'm assigning /56, so I'm just wondering if I'm missing anything and there is any good reason for assigning /48 (the only reason I can think of is 'one day that site might want to be multihomed...'). -- SY, Jen Linkova aka Furry