[175088] in North American Network Operators' Group
Re: IPv6 Default Allocation - What size allocation are you giving out
daemon@ATHENA.MIT.EDU (Owen DeLong)
Thu Oct 9 03:20:01 2014
X-Original-To: nanog@nanog.org
From: Owen DeLong <owen@delong.com>
In-Reply-To: <495D0934DA46854A9CA758393724D5906DA244@NI-MAIL02.nii.ads>
Date: Thu, 9 Oct 2014 00:15:46 -0700
To: Erik Sundberg <ESundberg@nitelusa.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
Stop cringing and give them /48s.
It=92s really not going to harm anything. Really. Look at the math.
That scale of waste is a very very pale glimmer compared to the LAN side =
of things where you have 18,000,000,000,000,000,000 (and then some) =
addresses left over after you put a few hundred thousand hosts on the =
segment.
Also, claiming that 90% will never have more than 2 or 3 subnets simply =
displays a complete lack of imagination. Household networks will =
continue to gain sophistication and with automated topologies developed =
through more advanced applications of DHCP-PD, you will, in fact, start =
seeing things like WLAN+GuestWLAN+LAN on separate segments, =
entertainment systems which generate their own segment(s), appliance =
networks which have separate routed segments, etc.
Unfortunately, most of these future applications don=92t stand a chance =
while we=92re still mired in IPv4 and IPv4-think about how to allocate =
addresses.
Owen
On Oct 8, 2014, at 6:18 PM, Erik Sundberg <ESundberg@nitelusa.com> =
wrote:
> I am planning out our IPv6 deployment right now and I am trying to =
figure out our default allocation for customer LAN blocks. So what is =
everyone giving for a default LAN allocation for IPv6 Customers. I =
guess the idea of handing a customer /56 (256 /64s) or a /48 (65,536 =
/64s) just makes me cringe at the waste. Especially when you know 90% of =
customers will never have more than 2 or 3 subnets. As I see it the =
customer can always ask for more IPv6 Space.
>=20
> /64
> /60
> /56
> /48
>=20
> Small Customer?
> Medium Customer?
> Large Customer?
>=20
> Thanks
>=20
> Erik
>=20
> ________________________________
>=20
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