[6bone] private ASNs and the Default-Free-Zone

Rik van Riel riel@conectiva.com.br
Fri, 25 Oct 2002 12:05:05 -0200 (BRST)


On 25 Oct 2002, Nicolas DEFFAYET wrote:
> On Fri, 2002-10-25 at 12:15, John Fraizer wrote:
>
> > This is not a problem:
> >
> > ipv6-site:    COMPENDIUM-AR
> > origin:       AS45328
> > descr:        Compendium, Buenos Aires, AR
> > country:      AR
> > prefix:       3FFE:8260::/28
>
> Do you think that it's normal to allocate a pTLA with an unallocated ASN
> ?

It's horrible, but when Horape got the COMPENDIUM pTLA he
quickly found out that ARIN plain _refused_ to give out ASNs
for ipv6-only sites.

I have heard some noises about an ipv4 multihoming site whose
ASN we might be allowed to use for ipv6, though. I hope to know
more about that soon.

> > Beyond that, if you peer with someone who uses a private ASN, use the
> > following command (or equiv for your router) on the peering session:
> >
> >  neighbor 3ffe:xxxx::xxxx remove-private-AS

> 3ffe:ffff::/32
> 1 2 3 65000
>
> If AS3 use remove-private-AS, other network will get this:
>
> 3ffe:ffff::/32
> 1 2 3
>
> AS3 is not the source of 3ffe:ffff::/32, the source is 65000

... which would violate RFC 2772, since AS3 wouldn't be the
only one announcing the address space in your example, since
COMPENDIUM has multiple links to the outside world.

I hope to be able to clear up this confusion soon, but as long
as the RIRs refuse to give out ASNs for sites that don't do
ipv4 multihoming COMPENDIUM will have to rely on the goodwill
of a friendly ipv4 site ... and I think Horape found one.

kind regards,

Rik
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