Hi, On Thu, Nov 26, 2009 at 04:53:22PM +0000, Lutz Donnerhacke wrote:
I see you point, that more specifics of 2002::/16 are disallowed by RFC3056, but this can easily be changed. 6rd uses the same way to modify RFC3056: It requires a huge parallel prefix (and route) per ISP.
Well, the point is that 6rd does *not* require another prefix per ISP, if done within their LIR allocation. As opposed to announce umpteen IPv4 prefixes that this LIR holds as more-specifics under 2002::/16. A second prefix for 6rd is only required under the proposal that a LIR could get a second (larger) temporary prefix to deploy IPv6 via 6rd, and later return that when all the network has migrated to "native" internal IPv6. I'm not convinced that this is a workable approach, as the criteria for "this has to be returned, if ...!" are usually quite hard to judge from the outside, and people tend to forget about good intentions... Gert Doering -- technologist -- Total number of prefixes smaller than registry allocations: 144438 SpaceNet AG Vorstand: Sebastian v. Bomhard Joseph-Dollinger-Bogen 14 Aufsichtsratsvors.: A. Grundner-Culemann D-80807 Muenchen HRB: 136055 (AG Muenchen) Tel: +49 (89) 32356-444 USt-IdNr.: DE813185279