[manet] Re: [IPv6]Re: IPv6 Address for Ad Hoc Networks

["Bless, Roland (TM)" <[e-mail]>]

Hi Bob,

see below.

On 02.08.24 at 20:35 Bob Hinden wrote:
>> On Aug 1, 2024, at 11:40 AM, Templin (US), Fred L <Fred.L.Templin=[e-mail]> wrote:
>>
>> Hi, this draft has been updated based on feedback from the IETF120 6MAN and MANET working
>> group sessions where the work was presented. The updates include:
>>
>>   - Drop support for fec0::/10 - reason: RFC3879 deprecation has rendered this prefix inoperable
>>   - Use prefix 2001:20::/28 [RFC7343][RFC7401] as "Type-1" Multilink-Local Address (MLA) prefix
>>   - Use prefix 2001:30::/28 [RFC9374] as "Type-2" MLA prefix
>>   - Allow future documents to define new MLA types, if necessary
> 
> IMHO, this draft should not specify any specific prefixes.   It should all be “To be assigned”.   Including it now is a distraction to the more important question.
> 
> I think the question that needs to be answered is:  Is there a real need for Ad Hoc IPv6 addresses?   Focusing now on the details or which or how many prefixes it might use doesn’t address that.

We designed the zero-touch routing architecture KIRA that uses 112 bit 
IDs with a 16 bit prefix to form "Unique" IPv6 addresses as routable 
NodeIDs.
The advantage is that no address assignment is required.
I'll update the currently expired draft
https://datatracker.ietf.org/doc/draft-bless-rtgwg-kira/ soon.
So this is a concrete use case.

Regards,
  Roland

> Bob (w/ no hats)
> 
> 
>> While MANETs represent a natural basic use case, the IPv6 Ad Hoc network addressing
>> scheme applies to all manners of IPv6 networks and not just those that fall within the auspices
>> of the MANET working group. The work is therefore in scope for the larger Internet area in
>> general the same as RFC5889, but is more specifically targeted for 6MAN due to its exclusive
>> focus on IPv6. For full context, please view the IETF120 MANET session presentation beginning
>> at the 22minute mark here:
>>
>> https://play.conf.meetecho.com/Playout/?session=IETF120-MANET-20240726-1630
>>
>> Please review and comment so that this essential work can move forward.
>>
>> Thank you - Fred Templin
>>
>> -----Original Message-----
>> From: [e-mail] <[e-mail]>
>> Sent: Thursday, August 01, 2024 12:49 PM
>> To: [e-mail]
>> Subject: I-D Action: draft-templin-6man-mla-19.txt
>>
>> Internet-Draft draft-templin-6man-mla-19.txt is now available.
>>
>>    Title:   IPv6 Addresses for Ad Hoc Networks
>>    Author:  Fred L. Templin
>>    Name:    draft-templin-6man-mla-19.txt
>>    Pages:   13
>>    Dates:   2024-08-01
>>
>> Abstract:
>>
>>    Ad Hoc networks often present a challenging environment for IPv6
>>    addressing due to the indeterminant neighborhood properties of their
>>    interfaces.  IPv6 nodes must assign IPv6 addresses to their interface
>>    connections to Ad Hoc networks that are locally unique but must not
>>    be propagated to other networks.  IPv6 nodes must therefore be able
>>    to assign self-generated addresses to their interfaces when there are
>>    no IPv6 Internetworking routers present that can coordinate topology-
>>    relative IPv6 addresses or prefixes.  This document specifies IPv6
>>    address types that can be assigned to Ad Hoc network interfaces.
>>
>> The IETF datatracker status page for this Internet-Draft is:
>> https://datatracker.ietf.org/doc/draft-templin-6man-mla/
>>
>> There is also an HTMLized version available at:
>> https://datatracker.ietf.org/doc/html/draft-templin-6man-mla-19
>>
>> A diff from the previous version is available at:
>> https://author-tools.ietf.org/iddiff?url2=draft-templin-6man-mla-19
>>
>> Internet-Drafts are also available by rsync at:
>> rsync.ietf.org::internet-drafts
>>
>>
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