Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00
Owen DeLong <owen@delong.com> Mon, 12 August 2013 17:11 UTC
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From: Owen DeLong <owen@delong.com>
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Date: Mon, 12 Aug 2013 09:54:37 -0700
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To: Mark Andrews <marka@isc.org>
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Cc: Alejandro Acosta <aacosta@rocketmail.com>, v6ops@ietf.org
Subject: Re: [v6ops] draft-moreiras-v6ops-rfc3849bis-00
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On Aug 11, 2013, at 16:38 , Mark Andrews <marka@isc.org> wrote: > > In message <B66D2D0C-DE6D-49CC-A87A-7C65B5360DB4@delong.com>, Owen DeLong write > s: >> I support the idea. It might be worth also asking for a ULA Doc slice at the >> same time. I think a /48 is probably sufficient for most ULA examples. >> >> But I think it would be good to be able to write up ULA examples and training >> that use actual ULA prefixes intended for documentation. > > Why? > > The purpose of reserving a prefix for documentation is to ensure > that documentation prefixes doesn't clash with ones assigned by a > registries. For locally assigned ULA don't need a reserved prefix > because there is no registry assignments to clash with. For centrally > assigned ULA there is no registry yet so no practical examples can > exist. When such a registry is assigned we can document a prefix in the > meantime just generate a new prefix when you write your documentation. > > dd if=/dev/random bs=5 count=1 | od -tx1 | > awk '/000000/ { print "fd" $2 ":" $3 $4 ":" $5 $6 ; exit} > Because, as history has shown, if there isn't a prefix documented as "you should use this for documentation and training only", people tend to copy examples verbatim instead. Admittedly, I still run into the occasional internal network numbered out of doc-prefix space in IPv4 because they copied the examples, but I run into a lot more cases where they improperly copied examples that used other prefixes than the documentation prefix. The point of a documentation prefix is not only to avoid clashing with registry space. It is also so that if you blindly copy examples, this fact is instantly obvious to any network engineer who knows what they are doing and can be more easily identified and corrected (hopefully before it becomes entrenched beyond repair). Owen
- 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