On Fri, 2004-05-21 at 15:55, Eiffel Wu wrote: > >> >On Fri, 21 May 2004, Eiffel Wu wrote: <SNIP> > >in other words, there can be multiple Teredo IPv6 service prefixes. > >Anyone can establish one just if the operator has a /32 prefix to > >spare. Many probably don't :). > How many ISPs have a /32 prefix ? A lot, from http://www.sixxs.net/tools/grh/tla/ 1x /20 1x /23 58x /24 1x /27 56x /28 1x /30 1x /31 603x /32 26x /35 The /24 and 28's are mostly 6bone btw. Total of 748 TLA's ;) > As i know, now there are no ISPs that have a /32 prefix in China. http://www.sixxs.net/tools/grh/tla/all/?country=cn 11 pieces of RIR TLA's, 6 in the routing tables, 5 not. Additionally 3 6bone prefixes (1 /24 + 2x /28) Nopes, that is not even 1% probably of China, I realise that quite well, so just kick those ISP's and let them get address space. > Moreover, There are thousands of million NAT users in China, which > will need > many of Teredo relays and corresponding Teredo /32 prefixes. ISP's should use Teredo/6to4/ISATAP/6in4/.... as a transition method and not for 'ever'. Also 1 /32 could do as they are mapped inside the /32, you wouldn't want to be the Teredo server then though ;) > When does Chinese > ISPs have so many /32 prefixes ? i don't think the day will come soon. http://www.apnic.net -> fill in the forms, show the need, done. But that is all policy, which has nothing to do with the IETF. And it is *EASY* to get IPv6 address space even at APNIC. I suggest you contact APNIC and inquire there about the possibilities. Greets, Jeroen
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