teredo.ipv6.microsoft.com off?

[Marco Sommani]

On 18/lug/2013, at 22:09, Brian E Carpenter <brian.e.carpenter at gmail.com> wrote:

> Wait... I had the impression that iff there was no other IPv6 connectivity,
> Teredo was used in older Windows because of the generic "prefer IPv6" rule.
> The default RFC 3484 table covers 6to4 but not Teredo.
> 
> Recent Windows deprefs Teredo of course.
> 
>   Brian

Right. The policy table in RFC 3484 has no specific entry for prefix 2001::/32. This is corrected in the table of RFC 6724:

      Prefix        Precedence Label
      ::1/128               50     0
      ::/0                  40     1
      ::ffff:0:0/96         35     4
      2002::/16             30     2
      2001::/32              5     5
      fc00::/7               3    13
      ::/96                  1     3
      fec0::/10              1    11
      3ffe::/16              1    12

-- 
Marco Sommani
Consiglio Nazionale delle Ricerche
Istituto di Informatica e Telematica
Via Giuseppe Moruzzi 1
56124 Pisa - Italia
work: +390506212127
mobile: +393487981019 
fax: +390503158327
mailto:marco.sommani at iit.cnr.it

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