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Re: Review of draft-ietf-6man-rfc4291bis-06

2017-01-13 13:46:39
On 01/13/2017 12:55 AM, Suresh Krishnan wrote:
Hi Randy,

On Thu, Jan 12, 2017 at 7:49 PM, Randy Bush <randy(_at_)psg(_dot_)com> wrote:
to be clear, i have no problem with iids being 64-bit.  my issue is with
unicast globals being classful in 2.4.4.
Randy I take your point, but this supposed conflict isn't new, it's not
introduced in 4291bis, it goes back to RFC3513.

i know; and i have pushed back every cm of the way.  it took years to
get the other classful insanity, tls/nla, removed.  the old cidr war
continues.  this last bit of classfulness (excuse the word) too will
pass.

Do you have a suggestion how to change this within the context of
advancing this to Internet Standard?

yes.  simply remove the mandatory requirement for classful global
unicast addresses.

I do see your point but I do not feel it is equivalent to classful
addressing in IPv4. i.e. Looking at the leading X bits does not
directly determine the IID length.

Isn't that the case for the address block we're currently employing? -
the IID is defined to be 64 bits.


-- 
Fernando Gont
SI6 Networks
e-mail: fgont(_at_)si6networks(_dot_)com
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