[184452] in North American Network Operators' Group
Re: How to wish you hadn't forced ipv6 adoption (was "How to force
daemon@ATHENA.MIT.EDU (Owen DeLong)
Sat Oct 3 14:58:15 2015
X-Original-To: nanog@nanog.org
From: Owen DeLong <owen@delong.com>
In-Reply-To: <335329195.1393.1443784549610.JavaMail.mhammett@ThunderFuck>
Date: Sat, 3 Oct 2015 11:56:58 -0700
To: Mike Hammett <nanog@ics-il.net>
Cc: nanog group <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
How do you figure that?
Owen
> On Oct 2, 2015, at 04:14 , Mike Hammett <nanog@ics-il.net> wrote:
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> Not all providers are large enough to justify a /32.=20
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> -----=20
> Mike Hammett=20
> Intelligent Computing Solutions=20
> http://www.ics-il.com=20
>=20
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> Midwest Internet Exchange=20
> http://www.midwest-ix.com=20
>=20
>=20
> ----- Original Message -----
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> From: "Philip Dorr" <tagno25@gmail.com>=20
> To: "Rob McEwen" <rob@invaluement.com>=20
> Cc: "nanog group" <nanog@nanog.org>=20
> Sent: Thursday, October 1, 2015 11:14:35 PM=20
> Subject: Re: How to wish you hadn't forced ipv6 adoption (was "How to =
force rapid ipv6 adoption")=20
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> On Thu, Oct 1, 2015 at 10:58 PM, Rob McEwen <rob@invaluement.com> =
wrote:=20
>> On 10/1/2015 11:44 PM, Mark Andrews wrote:=20
>>>=20
>>> IPv6 really isn't much different to IPv4. You use sites /48's=20
>>> rather than addresses /32's (which are effectively sites). ISP's=20
>>> still need to justify their address space allocations to RIR's so=20
>>> their isn't infinite numbers of sites that a spammer can get.=20
>>=20
>>=20
>> A /48 can be subdivided into 65K subnets. That is 65 *THOUSAND*... =
not the=20
>> 256 IPs that one gets with an IPv4 /24 block. So if a somewhat legit =
hoster=20
>> assigns various /64s to DIFFERENT customers of theirs... that is a =
lot of=20
>> collateral damage that would be caused by listing at the /48 level, =
should=20
>> just one customer be a bad-apple spammer, or just one legit customer =
have a=20
>> compromised system one day.=20
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> As a provider (ISP or Hosting), you should hand the customers at a=20
> minimum a /56, if not a /48. The provider should have at a minimum a=20=
> /32. If the provider is only giving their customers a /64, then they=20=
> deserve all the pain they receive.=20
