[96926] in North American Network Operators' Group

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RE: IPv6 Advertisements

daemon@ATHENA.MIT.EDU (Azinger, Marla)
Tue May 29 15:17:26 2007

Date: Tue, 29 May 2007 13:12:23 -0400
From: "Azinger, Marla" <marla.azinger@frontiercorp.com>
To: "Donald Stahl" <don@calis.blacksun.org>,
	"Pekka Savola" <pekkas@netcore.fi>
Cc: <nanog@nanog.org>
Errors-To: owner-nanog@merit.edu


/48's handed out by ARIN are most likely in the PI range that ARIN has =
deamed for PI use only.  Networks are aware of the PI block and have =
opened their filters to let /48 or more specific through if and only if =
it comes from the special IP block.  That said...not everyone is letting =
more specific than a /32 through no matter what IP block it comes from.

~Marla=20

-----Original Message-----
From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of
Donald Stahl
Sent: Tuesday, May 29, 2007 6:26 AM
To: Pekka Savola
Cc: nanog@nanog.org
Subject: Re: IPv6 Advertisements



> Anything more specific than /32 is going to be filtered at some =
portion of=20
> the ISPs whether for the good or bad.  There are some subsets of the =
v6=20
> address space that have a higher chance of /48 working (for some =
definition=20
> of 'working') than other parts of the address space, though.
More specific advertisements always stand a chance of being blocked. I =
was=20
more interested in whether or not people know of places where they are=20
actively being blocked and why.

That said- ARIN is handing out /48's- should we be blocking validly=20
assigned networks?

-Don

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