Introducing draft-denog-v6ops-addresspartnaming

William Herrin bill at
Fri Nov 19 15:17:16 CST 2010

On Fri, Nov 19, 2010 at 4:09 PM, Joel Jaeggli <joelja at> wrote:
> On 11/19/10 12:45 PM, William Herrin wrote:
>> The meaningful boundaries in the protocol itself are nibble and /64.
>> If you want socially significant boundaries, add /12, /32 and /48.
> It is possible and desirable to be able to describe any mask length
> between /0 and /128. the /64 is an important demarcation point for
> subnets but everything shorter than that will appear in your routing table.

Hi Joel,

Bit, nibble and /64 then. /64 is treated specially by functions in the
protocol (like SLAAC) thus it's a protocol boundary rather than a
social one (/12 IANA allocations, /32 ISP allocations, /48 end-user

Unless you particularly feel the need to assign /64's to router
loopbacks, you'll see plenty of routes longer than /64 in your table

Bill Herrin

William D. Herrin ................ herrin at  bill at
3005 Crane Dr. ...................... Web: <>
Falls Church, VA 22042-3004

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