Re: Objection to draft-ietf-6man-rfc4291bis-07.txt

Lorenzo Colitti <lorenzo@google.com> Thu, 02 March 2017 08:46 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Thu, 2 Mar 2017 17:46:23 +0900
Message-ID: <CAKD1Yr1hH1TnY+TNcCtxGuqTU8YYsEYFRszVGSFKXFTbwbQMmQ@mail.gmail.com>
Subject: Re: Objection to draft-ietf-6man-rfc4291bis-07.txt
To: =?UTF-8?Q?Iv=C3=A1n_Arce?= <iarce@fundacionsadosky.org.ar>
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On Thu, Mar 2, 2017 at 2:03 AM, Iván Arce <iarce@fundacionsadosky.org.ar>;
wrote:

> The last paragraph of section "2.5.1 Interface identifiers" in 4291 said:
>
>    The details of forming interface identifiers are defined in the
>    appropriate "IPv6 over <link>" specification, such as "IPv6 over
>    Ethernet" [ETHER], and "IPv6 over FDDI" [FDDI].
>
> The corresponding paragraph in rfc4291bis is:
>
>    The details of forming interface identifiers are defined in other
>    specifications, such as "Privacy Extensions for Stateless Address
>    Autoconfiguration in IPv6" [RFC4941] or "A Method for Generating
>    Semantically Opaque Interface Identifiers with IPv6 Stateless Address
>    Autoconfiguration (SLAAC)"[RFC7217].  Specific cases are described in
>    appropriate "IPv6 over <link>" specifications, such as "IPv6 over
>    Ethernet" [RFC2464] and "Transmission of IPv6 Packets over ITU-T
>    G.9959 Networks" [RFC7428].  The security and privacy considerations
>    for IPv6 address generation is described in [RFC7721].
>
> Don't you agree with that?
>

Sure, but that text only specifies the details of how the IIDs are formed,
not how long they are. Right now they are all 64 bits long because other
text in RFC 4291 says that they are.