[ipv6-tf] Odp: po debacie.

Bartek Gajda gajda w man.poznan.pl
Pią, 27 Mar 2009, 10:24:33 CET


Maciej Łopaciński wrote:
> Dokument  ripe-450, punkt 4.3 http://www.ripe.net/docs/ripe-450.html 
>
> 4.3. Minimum allocation
> RIRs will apply a minimum size for IPv6 allocations to facilitate
> prefix-based filtering.
> The minimum allocation size for IPv6 address space is /32. 
>   
Mysle ze wprowadzenie przydzialow PI bedzie rownoczesne z odpowiednimi
rekomendacjami co do ustawien filtrow, inaczej przeciez bylby to strzal
w noge i byloby to bez sensu.

Prosze rzucic okiem na proposal w RIPE
http://www.ripe.net/ripe/policies/proposals/2006-01.html

"Assignments will be made from a separate 'designated block' to
facilitate filtering practices."

Sadze wiec, ze PI w wersji dla IPv6 bedzie dawalo takie same gwarancje
routingu jak IPv4 i nie ma tutaj sie czego obawiac. Oczywiscie zycie to
zweryfikuje.

Ponadto warto zauwazyc, iz w wielkiej Ameryce nikt nie gwarantuje
routowalnosci:

https://www.arin.net/policy/nrpm.html#six42
6.4.2. Routability not guaranteed
There is no guarantee that any address allocation or assignment will be
globally routable.
However, RIRs must apply procedures that reduce the possibility of
fragmented address space which may lead to a loss of routability.

a nawet w ich policy tez nie ma slowa na ten temat:

https://www.arin.net/policy/nrpm.html#six58
6.5.8. Direct assignments from ARIN to end-user organizations
6.5.8.1. Criteria
To qualify for a direct assignment, an organization must:
   1. not be an IPv6 LIR; and
   2. qualify for an IPv4 assignment or allocation from ARIN under the
IPv4 policy currently in effect, or demonstrate efficient utilization of
all direct IPv4 assignments and allocations, each of which must be
covered by any current ARIN RSA.
6.5.8.2. Initial assignment size
Organizations that meet the direct assignment criteria are eligible to
receive a direct assignment. The minimum size of the assignment is /48.
Organizations requesting a larger assignment must provide documentation
justifying the need for additional subnets. An HD-Ratio of .94 must be
met for all assignments larger than a /48.
These assignments shall be made from a distinctly identified prefix and
shall be made with a reservation for growth of at least a /44. This
reservation may be assigned to other organizations later, at ARIN's
discretion.
6.5.8.3. Subsequent assignment size
Additional assignments may be made when the need for additional subnets
is justified. Justification will be determined based on the .94 HD-Ratio
metric. When possible, assignments will be made from an adjacent address
block.


wiec propozycja RIPE w tym kontekscie wyglda nawet lepiej:

pozdrawiam,
Bartek




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