[172376] in North American Network Operators' Group
Re: Credit to Digital Ocean for ipv6 offering
daemon@ATHENA.MIT.EDU (Owen DeLong)
Tue Jun 17 17:17:35 2014
X-Original-To: nanog@nanog.org
From: Owen DeLong <owen@delong.com>
In-Reply-To: <53A09D46.7000507@Janoszka.pl>
Date: Tue, 17 Jun 2014 14:09:21 -0700
To: Grzegorz Janoszka <Grzegorz@Janoszka.pl>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
On Jun 17, 2014, at 12:55 , Grzegorz Janoszka <Grzegorz@Janoszka.pl> =
wrote:
> On 2014-06-17 21:46, David Conrad wrote:
>>>>> No, 8 individual IPv6 addresses.
>>>> Wow. Harsh. I burn more than that just in my living room.
>>> I don't think that is too harsh as all 8 are assigned to a single =
server. So if I have three VPS's, I have 24 total addresses.
>> In the case of my 3 VPS's, I've received /64s from both RootBSD.net =
and Arp Networks or 55,340,232,221,128,654,848 addresses. I'm not sure I =
see a rationale for assigning 8 addresses. That is, I could understand =
assigning a single address or a /64 but 8 addresses? I'd think that'd be =
more complicated/error prone than either the /128 or /64 options. A bit =
odd.
>=20
> There are still applications that break with subnet smaller than /64, =
so all VPS providers probably have to use /64 addressing.
>=20
> /64 for one customer seems to be too much, on the other side 8 IP's =
can be not enough in some cases. I think 65536 out of shared /64 for one =
server can be enough. You can easily automate provisioning and reverse =
DNS assuming you assign /112 for each server.
> If you block SLAAC and provide connectivity to only the static IP's, =
your abuse folks should appreciate it (yes, I know you can spoof v6).
There's no problem with assigning at least a /64 per customer even for =
VPSs.
There are plenty of /64s to go around.
Please stop trying to push the IPv4 scarcity mentality into IPv6. Subnet =
where it makes sense to subnet and assign a /64 to each subnet, whether =
it has 2 hosts or 2,000 hosts does not matter.
In reality, the difference in waste between a /64 with 2,000 hosts on it =
and a subnet with 2 hosts on it is less than 0.00001%.
Owen
