Re: "Link-Local" clarification in <draft-ietf-ipv6-addr-arch-v4-04.txt> (is Link-Local fe80::/10 or fe80::/64 ?)

[Bob Hinden <bob.hinden at nokia.com>]

Arnaud,

> I post here a (probably stupid) question regarding Link-local
> definition in draft-ietf-ipv6-addr-arch-v4-04.txt (and previous
> RFC3513) :
>
> - The information in http://www.iana.org/assignments/ipv6-address- space 
> (updated 31 August 2005) is synchronized with 2.4 of 3513 :
>   |->  FE80::/10             Link Local Unicast      [RFC3513]
> - If I follow 2.4 of 3513, the address fe80:4::211:24ff:fe71:c660 is
> a Link-local address (belonging to fe80::/10).
> - If I follow 2.5.6 of 3513, the address fe80:4::211:24ff:fe71:c660
> is not Link-local address (fe80:0000:0000:0000:ifaceid).
>
> The current draft-ietf-ipv6-addr-arch-v4-04.txt is in sync with 3513
> regarding that 2 specific points (even with the split of 2.5.6 in the
> draft) sections, so I don't see the status of addresses from
> fe80::/10 that are not in fe80::/64 (like the previous one starting
> with fe80:4::..) .

Section 2.4 defines the prefix (i.e., FE80::/10) that identifies the 
address as link-local addresses type and Section 2.5.6 defines the exact 
format (i.e.,  prefix, zeros, IID) of Link-Local addresses.

Hope this helps.

Bob
> Did I miss something in another document ?
>
> ps : for a practical information on the status of implementations :
>      - Linux 2.6.12 accepts those addresses as link-local
>      - OpenBSD 3.7, FreeBSD 5.4 and Mac OS X.4 don't
> pps : keep me on CC, I'm on the list (but can't access my mail this
> way during the WE)
>
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