Hi Marshall,
Thanks for this update about ARIN's work.
Comments below.
Le 12 oct. 2010 à 17:06, Marshall Eubanks a écrit :
...
What worries me (and others) is that to give end
users an IPv6 /56 will generally require the assignments as short as /24s
to ISPs, due to the encapsulation of v4 addresses inside of v6 addresses :
"The 6rd prefix is an RIR delegated IPv6 prefix. It must encapsulate
an IPv4 address and must be short enough so that a /56 or /60 can be
given to subscribers."
56 - 32 = a /24
Note that the first large scale deployment of native IPv6 (i.e. with LIR
provided prefixes), was done with 6rd.
Customers, of which I am, initially had only /64s.
This was because their ISP started with a /32 (the only one it could get
quickly, i.e. without arguing about its multi-million customer base), but this
was in practice enough for IPv6 to work in typical residential and soho sites.
When Free.fr obtained a /26, our IPv6 prefixes became /60s, i.e. enough for all
typical sites that aren't very large private networks
(tools.ietf.org/html/rfc5569).
In my understanding,, suggesting that people should have fear, uncertainty, and
doubt, about 6rd, is therefore acting against early IPv6-service deployment and
use.
IMHO, it's better to encourage them.
As I personally don't follow ARIN's work, pleas feel free to forward this to
your colleagues there.
Regards,
RD
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