nanog mailing list archives
Re: ISP customer assignments
From: Owen DeLong <owen () delong com>
Date: Mon, 5 Oct 2009 15:47:29 -0700
It's very likely that they won't understand, won't have to, and will still need them.
Let's face it, most customer's don't know what an IP address is, really, but, they
still need them and they still use them all the time.It is, as someone else stated, very likely that there will be home routers that have multiple zones on multiple interfaces each of which gets a different /64
from a /56 or /48 handed to it by the upstream DHCP-PD box. Owen On Oct 5, 2009, at 11:10 AM, Brian Johnson wrote:
What would be "wrong" with using a /64 for a customer who only has a local network? Most home users won't understand what a subnet is. - Brian-----Original Message----- From: wherrin () gmail com [mailto:wherrin () gmail com] On Behalf OfWilliamHerrin Sent: Monday, October 05, 2009 11:58 AM To: Brian Johnson Cc: nanog () nanog org Subject: Re: ISP customer assignments On Mon, Oct 5, 2009 at 11:27 AM, Brian Johnson <bjohnson () drtel com> wrote:From what I can tell from an ISP perspective, the design of IPv6 isforassignment of a /64 to an end user. Is this correct? Is this how itiscurrently being done? If not, where am I going wrong?No. A /64 is one *subnet*. Essentially the standard, static size for any Ethernet LAN. For a customer, the following values are more appropriate: /128 - connecting exactly one computer. Probably only useful for your dynamic dialup customers. Any always-on or static-IP customer should probably have a CIDR block. /48 - current ARIN/IETF recommendation for a downstream customerconnecting more than one computer unless that customer is large enoughto need more than 65k LANs. /56 - in some folks opinion, slightly more sane than assigning a 65k subnets and bazillions of addresses to a home hobbyist with half a dozen PC's./60 - the smallest amount you should allocate to a downstream customerwith more than one computer. Anything smaller will cost you extra management overhead from not matching the nibble boundary for RDNS delegation, handling multiple routes when the customer grows, not matching the standard /64 subnet size and a myriad other obscure issues. Regards, Bill Herrin --William D. Herrin ................ herrin () dirtside com bill () herrin us3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004
Current thread:
- Re: ISP customer assignments, (continued)
- Re: ISP customer assignments Dan White (Oct 05)
- Re: ISP customer assignments Ricky Beam (Oct 05)
- Re: ISP customer assignments Dan White (Oct 06)
- RE: ISP customer assignments TJ (Oct 05)
- Re: ISP customer assignments Valdis . Kletnieks (Oct 05)
- Message not available
- Re: ISP customer assignments Dan White (Oct 06)
- Re: ISP customer assignments TJ (Oct 06)
- Re: ISP customer assignments James Hess (Oct 06)
- Re: ISP customer assignments Michael Dillon (Oct 08)
- Re: ISP customer assignments Steven Bellovin (Oct 05)
- Re: ISP customer assignments Owen DeLong (Oct 05)
- Re: ISP customer assignments Michael Thomas (Oct 05)
- Re: ISP customer assignments David Andersen (Oct 05)
- Re: ISP customer assignments Michael Thomas (Oct 05)
- Re: ISP customer assignments David Barak (Oct 05)
- Re: ISP customer assignments David Conrad (Oct 05)
- Re: ISP customer assignments Adrian Chadd (Oct 05)
- Re: ISP customer assignments Joe Greco (Oct 05)