Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00
"Antonio M. Moreiras" <moreiras@nic.br> Thu, 15 August 2013 12:07 UTC
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From: "Antonio M. Moreiras" <moreiras@nic.br>
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Subject: Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00
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On 15/08/13 04:33, Mark ZZZ Smith wrote: > ----- Original Message ----- >> > From: Owen DeLong <owen@delong.com> >> > To: Mark ZZZ Smith <markzzzsmith@yahoo.com.au> >> > Cc: "George, Wes" <wesley.george@twcable.com>; "v6ops@ietf.org" <v6ops@ietf.org> >> > Sent: Thursday, 15 August 2013 6:17 AM >> > Subject: Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 >> > >>>>> >>>> >>>>> >>>> [WEG] at the risk of debating bikeshed colors, I would suggest >> > perhaps >>>> >>> using :db8:: for both the proposed GUA and ULA doc prefixes so that it >> > serves as >>>> >>> a visual cue. >>>> >>> >>>> >>> I have no problem with that. >>>> >>> >>>> >>> How about 02db:8000::/20 and fc00:0db8::/32? >>>> >>> >>> >> >>> >> As fc00:0db8::/32 is from within the existing but albeit unused portion of >> > ULA prefix, any future use of fc00::/8 will need to specifically exclude it. I >> > think exceptions to the normal case are better to avoid because they're >> > another thing to remember, program as an exception case and therefore a prone to >> > errors etc. >> > >> > By definition, a documentation prefix is going to be an exception. >> > > Yes, but there has to be code to except it when it is being generated, recorded, precluded from ACLs etc. If fc00:0db8::/32 was used, then a potential future registry would have to exclude that range of prefixes, and assuming the operational rules are applied, then there would be mixed cases where parts of fc00::/8 are permitted/accepted/forwarded and then fc00:0db8::/32 has to either explicitly or implicitly denied/filtered/blocked. I think it is better to make the network's handling of all prefixes within fc00::/8 consistent, with no exceptions. > I am not following closely the discussions on ULA-C. I think this matter isn't discussed since 2007, or 2008, is it? But let's suppose that someone revives the subject, and we come to create such a central registry for ULA-C space. Based on previous discussions, I think it is safe to assume that it would just allocate /48 prefixes from fc00::/8, probably choosing them randomically. In this context, what could happen if we reserve some prefixes for documentation, now? They would just be marked as already in use, by such central registry. What else could happen? The networks could treat the ULA documentation prefixes the same way they treat any other ULA prefix that are not their own. As ULA, in general, is already being filtered at network borders, maybe we really wouldn't need special rules, or exceptions, as we need with 2001:0db8::/32. The main advantage of an ULA documentation prefix, such as fc00:0db8::/32 would be the "visual clue", then. If someone a bit experienced sees something like fc00:db8:a:coffe::1 in the network, it would be very clear that it was copied from some example, and should not be there. Moreiras.
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark Andrews
- [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Antonio M. Moreiras
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark Andrews
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Antonio M. Moreiras
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark Andrews
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 cb.list6
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Antonio M. Moreiras
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Antonio M. Moreiras
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Alejandro Acosta
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Fred Baker (fred)
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Bill Jouris
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Carlos Martinez-Cagnazzo
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Carlos Martinez-Cagnazzo
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 George, Wes
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 George, Wes
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark Andrews
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Alejandro Acosta
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark Andrews
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark Andrews
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Antonio M. Moreiras
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark Andrews
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Antonio M. Moreiras
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark Andrews
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark Andrews
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark Andrews
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 George, Wes
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Carlos M. Martinez
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 George, Wes
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Azael Fernandez Alcantara
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark ZZZ Smith
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Antonio M. Moreiras
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark Andrews
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Gert Doering
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark ZZZ Smith
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Antonio M. Moreiras
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Antonio M. Moreiras
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 George, Wes
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Arturo Servin
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Fred Baker (fred)
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Mark ZZZ Smith
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Antonio M. Moreiras
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Fred Baker (fred)
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Antonio M. Moreiras
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Fred Baker (fred)
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Owen DeLong
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Alejandro Acosta
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Carlos Martinez-Cagnazzo
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Fred Baker (fred)
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 George, Wes
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Fred Baker (fred)
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Arturo Servin
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Fred Baker (fred)
- Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00 Arturo Servin