North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: It's Ars Tech's turn to bang the IPv4 exhaustion drum
Michael Thomas wrote: > Justin M. Streiner wrote: >> On Tue, 19 Aug 2008, [email protected] wrote: >> >>>> I don't have a problem with assigning customers a /64 of v6 >>>> space. >>> >>> Why so little? Normally customers get a /48 except for residential >>> customers who can be given a /56 if you want to keep track of >>> different block sizes. If ARIN will give you a /48 for every >>> customer, then why be miserly with addresses? >> >> I don't operate an ISP network (not anymore, anyway...). My customers >> are departments within my organization, so a /64 per department/VLAN >> is more sane/reasonable for my environment. > > Uh, the lower 64 bits of an IP6 address aren't used for routing you > know? They're essentially the mac address, or some other sort of > autoconf'd host identifier. Last I heard, the smallest allocation is > supposed to be a /48 -- I hadn't heard of the /56 thing that Michael > was speaking of, though I'm not surprised. There's 64 bits for > routing... no need to be so stingy :) > Last time I asked about this on the ipv6 list I got smacked for thinking about using anything other than a /64 for subnets, even on point to point links. ~Seth
|