Re: (ngtrans) Re: pTLA 3FFE:FFF0::/28 for test & example useper draft-blanchet-ipngwg-testadd-00.txt, closes 20Jun01

Dirk Ooms <Dirk.Ooms@alcatel.be> Thu, 07 June 2001 09:53 UTC

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Date: Thu, 07 Jun 2001 11:51:53 +0200
From: Dirk Ooms <Dirk.Ooms@alcatel.be>
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To: Alain Durand <Alain.Durand@sun.com>
CC: Keith Moore <moore@cs.utk.edu>, itojun@iijlab.net, Marc Blanchet <Marc.Blanchet@viagenie.qc.ca>, ngtrans@sunroof.eng.sun.com
Subject: Re: (ngtrans) Re: pTLA 3FFE:FFF0::/28 for test & example useper draft-blanchet-ipngwg-testadd-00.txt, closes 20Jun01
References: <Your message of "Thu, 07 Jun 2001 13:28:10 +0900." <27929.991888090@itojun.org> <5.1.0.14.0.20010606224915.0399be68@jurassic>
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Would it be good to also reserve a range of multicast addresses for the
same purpose?

dirk

Alain Durand wrote:
> 
> Itojun:
> 
> > >       marc's one is more like "how to write example configuration down onto
> > >       manual pages".  since we don't know what IPv4 address the readers
> > >       would use, we cannot really generate 6to4 prefix.
> 
> Keith:
> 
> >a.  perhaps this could be made clearer in the next version?
> >     the current draft implies more than once that these addresses
> >     could be used for testing or test networks, which is pretty
> >     close to saying they can be used for private operational networks.
> >     test networks sometimes evolve into operational networks if the
> >     test is successful.
> 
> The real value of Marc's draft is to give a prefix that we can use in example,
> like in RFCs, books, white paper, config example, etc...
> like the 555 area code in the movies.
> Having address space for test network is a very different thing.
> We have itojun's draft for that or we can suggest to use site local addresses.
> I would like to suggest to Marc to remove any reference to test networks in
> a future -01 draft.
> 
> >b.  I wonder if 3FFE:FFF0:: addresses make good examples, since they
> >     will "look different" than addresses in typical use (outside of
> >     the 6bone).  Also, might it be useful to have multiple example
> >     prefixes so that in examples citing addresses from different parts
> >     of the net the different prefixes would be easily distinguishable?
> 
> All we need is something that looks like a real IPv6 address but that is not
> allocated to anyone. I do not think that the fact that the address starts with
> a 2 or a 3 is relevant. This is the reason why I suggested 3ffe:5550::/28
> to maintain the parallel with the 555 area code.
> Also reserving a /28 prefix is large enough so any technical writer
> can carve as many prefixes as needed out of it.
> 
>          - Alain.

-- 
Dirk Ooms                       mailto:dirk.ooms@alcatel.be
                                tel:+32 3 2404732
Network Strategy Group (NSG)    http://aww.alcatel.com/nsg
Alcatel                         http://www.alcatel.com