nanog mailing list archives
Re: Definitive Guide to IPv6 adoption
From: Owen DeLong <owen () delong com>
Date: Mon, 18 Oct 2010 12:00:25 -0700
On Oct 18, 2010, at 11:18 AM, Jon Lewis wrote:
On Mon, 18 Oct 2010, Owen DeLong wrote:The customers should get /48s. The /56 guideline is merely that and only for the smallest of sites. It's also subsequently turned out to be bad advice.Can you elaborate on why /56 is "bad advice" and if you're saying it only for this case or if you're saying assignment of /56 to any customers is a bad idea? Dealing with a data center where customer machines typically get by today with a /29 of IPv4, is a /56 really not enough for their forseeable future?
I think it's generally a bad idea. /48 is the design architecture for IPv6. It allows for significant innovation in the SOHO arena that we haven't accounted for in some of our current thinking. In a datacenter environment, you might want to actually assign /64s to needed subnets, but, in a situation where you are serving remote end-sites, a /48 per end-site is, IMHO, the minimum size that should be issued.
I realize our /32 could support more customers than we're likely to fit in the data center at /48 per customer, but is that enough of a reason to assign 65k /64 subnets to each customer machine?
Datacenter is a whole different ball of wax. Nothing wrong with giving your customers /48s, but, the right size in a datacenter may well depend on a lot of things about your business model, the nature of your customers, etc. Certainly I would not deny a /48 to any customer that requested one. Owen
Current thread:
- Re: Definitive Guide to IPv6 adoption, (continued)
- Re: Definitive Guide to IPv6 adoption Joel Jaeggli (Oct 16)
- Re: Definitive Guide to IPv6 adoption Dobbins, Roland (Oct 16)
- RE: Definitive Guide to IPv6 adoption Brandon Kim (Oct 16)
- Re: Definitive Guide to IPv6 adoption Franck Martin (Oct 16)
- Re: Definitive Guide to IPv6 adoption Owen DeLong (Oct 17)
- RE: Definitive Guide to IPv6 adoption Tony Hain (Oct 18)
- Re: Definitive Guide to IPv6 adoption Randy Carpenter (Oct 18)
- Re: Definitive Guide to IPv6 adoption Jack Bates (Oct 18)
- Re: Definitive Guide to IPv6 adoption Owen DeLong (Oct 18)
- Re: Definitive Guide to IPv6 adoption Jon Lewis (Oct 18)
- Re: Definitive Guide to IPv6 adoption Owen DeLong (Oct 18)
- Re: Definitive Guide to IPv6 adoption Doug Barton (Oct 18)
- Re: Definitive Guide to IPv6 adoption Seth Mattinen (Oct 18)
- Re: Definitive Guide to IPv6 adoption Mark Smith (Oct 18)
- Re: Definitive Guide to IPv6 adoption Owen DeLong (Oct 19)
- Re: Definitive Guide to IPv6 adoption Tony Finch (Oct 19)
- Re: Definitive Guide to IPv6 adoption Owen DeLong (Oct 19)
- Re: Definitive Guide to IPv6 adoption David Conrad (Oct 18)
- Re: Definitive Guide to IPv6 adoption - Sparse IPv6 allocation John Curran (Oct 18)
- Re: Definitive Guide to IPv6 adoption - Sparse IPv6 allocation Randy Carpenter (Oct 18)
- Re: Definitive Guide to IPv6 adoption - Sparse IPv6 allocation John Curran (Oct 18)