Current IPv6 deployment methods in datacentres.

Brian E Carpenter brian.e.carpenter at
Tue Nov 13 09:18:04 CET 2012

On 12/11/2012 19:52, Yannis Nikolopoulos wrote:
> Michael,
> On 11/12/2012 02:20 PM, Michael Adams wrote:
>> Am 12.11.2012 11:49, schrieb I m t i:
>>>> We are not providing GPRS/Wimax. But for DSL we'll also
>>>   >go for a /48 per customer.
>>> You are assigning /48 on Wan interface of DSL CPE, what about the LAN
>>> interface ? as NAT is not a option for v6. are you using IP from /48
>>> on LAN as well or routing a separate IP prefix. what is Ip prefix
>>> configured on BRAS so that it can assign /48 to each PPPoE etc
>>> customer.
>> For residential customers the BRAS assigns a /64 from a dynamic pool
>> and announces it on the WAN side. The CPE gets the /48 by prefix
>> delegation
>> from another dynamic pool.

> we do the same, but we're assigning a /56 via PD. /48 for a simple
> broadband user sounds a bit too much, doesn't it?

It's probably more than they need, but 2000::/3 contains 35 trillion /48s
so I don't think it's a particularly dangerous policy. Personally,
I don't really expect to need more than a /60 at home, but who knows?


>> For business customers it will be the same.
>> But without PD.
> dynamic protocol?
>>> what about the customer who have requirement more than /48 ?
>> They will have to follow the RIPE procedures in order to get
>> larger IPv6 space.
> are you still talking about your own PA space?
>> Michael
> Yannis

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