ipv6 book recommendations?

Chris Grundemann cgrundemann at gmail.com
Tue Jun 5 17:39:14 CDT 2012

On Tue, Jun 5, 2012 at 4:29 PM, Owen DeLong <owen at delong.com> wrote:
> On Jun 5, 2012, at 3:15 PM, Chris Grundemann wrote:
>>> On Jun 5, 2012, at 2:23 PM, William Herrin wrote:
>>>> 2. Subnetting in v6 in a nutshell:
>> FWIW - There is a published BCOP on IPv6 subnetting:
>> http://www.ipbcop.org/ratified-bcops/bcop-ipv6-subnetting/
> Unfortunately, this BCOP recommends /56s for residential which is
> potentially harmful.

While it does use /56 as an example (mainly because most of the
operators I have spoken to say that is as big as they'll go and many
are shooting for less) but it does NOT make that a recommendation,
from the BCOP:

"This is an example for demonstrative purposes only. Individual
operators will need to determine their own prefix size preference for
serving customers (internal or external). The SMEs of this BCOP highly
recommend a /48 for any site that requires more than one subnet and
that a site be defined as an individual customer in residential

> I'm also not a fan of the /126 or /127 on point-to-points, but, the theoretical
> issues of neighbor table exhaustion attacks, etc. certainly should not
> be ignored entirely.

Agreed, they must be considered.


> Owen


More information about the NANOG mailing list