IPv6, multihoming, and customer allocations
Owen DeLong
owen at delong.com
Tue Mar 16 16:17:02 UTC 2010
On Mar 16, 2010, at 7:38 AM, Rick Ernst wrote:
> Regurgitating the original e-mail for context and follow-up.
>
> General responses (some that didn't make it to the list):
> - "There really is that much space, don't worry about it."
> - /48s for those that ask for it is fine, ARIN won't ask unless it's a
> bigger assignment
> - /52 (or /56) on smaller assignments for conservation if it makes you
> feel better
> - Open question on whether byte/octet-boundary assignment (/56 vs /52) is
> better for some reason
>
Octet boundary, not really. Nibble boundary, yes. Both for DNS delegation
convenience and for human factors issues.
> I haven't seen anything on the general feel for prefix filtering. I've seen
> discussions from /48 down to /54. Any feel for what the "standard" (widely
> deployed) IPv6 prefix filter size will be?
>
So far, mostly it's /48 with a few select providers trying to hold the line at /32.
Owen
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