nanog mailing list archives
Re: Private use of non-RFC1918 IP space (IPv6-MW)
From: "Patrick W. Gilmore" <patrick () ianai net>
Date: Wed, 4 Feb 2009 19:02:56 -0500
On Feb 4, 2009, at 6:56 PM, Scott Howard wrote:
On Mon, Feb 2, 2009 at 9:35 PM, Patrick W. Gilmore <patrick () ianai net>wrote:Except the RIRs won't give you another /48 when you have only used onetrillion IP addresses.Of course they will! A /48 is only the equivalent of 65536 "networks" (each network being a /64). Presuming that ISPs allocate /64 networks to each connected subscriber, then a /48 is only 65k subscribers, or say around a maximum of 200k IP addresses in use at any one time (presuming no NAT and anaverage of 3-4 IP-based devices per subscriber)IPv4-style utilization ratios do make some sense under IPv6, but not at theaddress level - only at the network level.
First, it was (mostly) a joke.Second, where did you get 4 users per /64? Are you planning to hand each cable modem a /64?
-- TTFN, patrick
Current thread:
- Re: Private use of non-RFC1918 IP space, (continued)
- Re: Private use of non-RFC1918 IP space Anthony Roberts (Feb 02)
- Re: Private use of non-RFC1918 IP space Patrick W. Gilmore (Feb 02)
- Re: Private use of non-RFC1918 IP space Mark Andrews (Feb 02)
- Re: Private use of non-RFC1918 IP space Patrick W. Gilmore (Feb 03)
- IPv6 space (was: RE: Private use of non-RFC1918 IP space ) Deepak Jain (Feb 03)
- Re: Private use of non-RFC1918 IP space Stephen Sprunk (Feb 02)
- Re: Private use of non-RFC1918 IP space Patrick W. Gilmore (Feb 03)
- Re: Private use of non-RFC1918 IP space Trey Darley (Feb 03)
- Re: Private use of non-RFC1918 IP space Heather Schiller (Feb 03)
- Re: Private use of non-RFC1918 IP space (IPv6-MW) Scott Howard (Feb 04)
- Re: Private use of non-RFC1918 IP space (IPv6-MW) Patrick W. Gilmore (Feb 04)
- Re: Private use of non-RFC1918 IP space (IPv6-MW) Seth Mattinen (Feb 04)
- v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP space (IPv6-MW)] Patrick W. Gilmore (Feb 04)
- Re: v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP space (IPv6-MW)] Howard C. Berkowitz (Feb 04)
- Re: v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP space (IPv6-MW)] Matthew Moyle-Croft (Feb 04)
- Re: v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP space (IPv6-MW)] Mark Andrews (Feb 04)
- Re: v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP space (IPv6-MW)] Matthew Moyle-Croft (Feb 04)
- Re: v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP space (IPv6-MW)] Jack Bates (Feb 05)
- Re: v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP space (IPv6-MW)] Iljitsch van Beijnum (Feb 05)
- Re: v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP space (IPv6-MW)] Anthony Roberts (Feb 04)
- Message not available
- Re: v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP space (IPv6-MW)] Matthew Moyle-Croft (Feb 04)