Re: Last Call: <draft-ietf-6man-rfc2460bis-08.txt> (Internet Protocol, Version 6 (IPv6) Specification) to Internet Standard

Sander Steffann <sander@steffann.nl> Sun, 26 February 2017 12:56 UTC

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Subject: Re: Last Call: <draft-ietf-6man-rfc2460bis-08.txt> (Internet Protocol, Version 6 (IPv6) Specification) to Internet Standard
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From: Sander Steffann <sander@steffann.nl>
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Date: Sun, 26 Feb 2017 13:55:59 +0100
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To: Fernando Gont <fgont@si6networks.com>
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Hi,

> 2.3.  Address Type Identification
> 
>   The type of an IPv6 address is identified by the high-order bits of
>   the address, as follows:
> 
>      Address type         Binary prefix        IPv6 notation   Section
>      ------------         -------------        -------------   -------
>      Unspecified          00...0  (128 bits)   ::/128          2.4.2
>      Loopback             00...1  (128 bits)   ::1/128         2.4.3
>      Multicast            11111111             ff00::/8        2.6
>      Link-Local unicast   1111111010           fe80::/10       2.4.6
>      Global Unicast       (everything else)
> 
> 
> I wonder if this table should explicitly call out ULAs, and provide a
> reference to the corresponding section.

ULAs are not an address type, they are Global Unicast. Adding them here might confuse people. And if we include ULAs then there is lots more that we should include as well. So while I understand your question, I think it would be better not to.

Cheers,
Sander