[118114] in North American Network Operators' Group
Re: IPv6 internet broken, Verizon route prefix length policy
daemon@ATHENA.MIT.EDU (David Conrad)
Mon Oct 12 19:38:49 2009
From: David Conrad <drc@virtualized.org>
In-Reply-To: <200910122240.n9CMel2I000196@drugs.dv.isc.org>
Date: Mon, 12 Oct 2009 16:37:44 -0700
To: Mark Andrews <marka@isc.org>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Mark,
On Oct 12, 2009, at 3:40 PM, Mark Andrews wrote:
>> Verizon's policy has been related to me that they will not accept or=20=
>> propogate any IPv6 route advertisements with prefix lengths longer =
than=20
>> /32. Full stop. So that even includes those of us that have /48 PI=20=
>> space from ARIN that are direct customers of Verizon.
>=20
> Looks like Verizon doesn't want any IPv6 customers. If a company
> has idiotic policies like this vote with your wallet.
Not knowing all the details, it is difficult for me to judge, however it =
is worth observing that provider independent addresses, regardless of =
where they come from or whether they are IPv4 or IPv6 simply do not =
scale. In the face of everybody and their mother now being able to =
obtain PI prefixes from all the RIRs, any ISP that handles full routing =
is going to have to hope their router vendor of choice can keep buying =
more/bigger CAMs (passing the expense on to the ISP who will pass it on =
to their customers) and/or they'll start implementing the same sort of =
prefix length limitations that we saw back in the mid-90s.
And, of course, we have IPv4 runout in the near future with the =
inevitable market which will almost certainly promote the use of longer =
prefixes.
In other words, get used to it.
Regards,
-drc
