On 16/03/2011 09:48 a.m., Mohacsi Janos wrote:

> As RFC 4941 says:
> 
> Changed the default setting for usage of temporary addresses to be
> disabled.
> 
> and also:
> "
> Additionally, sites might wish to selectively enable or disable the
>    use of temporary addresses for some prefixes.  For example, a site
>    might wish to disable temporary address generation for "Unique local"
>    [ULA] prefixes while still generating temporary addresses for all
>    other global prefixes.  Another site might wish to enable temporary
>    address generation only for the prefixes 2001::/16 and 2002::/16,
>    while disabling it for all other prefixes.  To support this behavior,
>    implementations SHOULD provide a way to enable and disable generation
>    of temporary addresses for specific prefix subranges.  This per-
>    prefix setting SHOULD override the global settings on the node with
>    respect to the specified prefix subranges.  Note that the pre-prefix
>    setting can be applied at any granularity, and not necessarily on a
>    per-subnet basis.
> "

The proposed modification to the Prefix Information option would enable
administrators to avoid the pain of having to do this manually on each
node attached to their site -- which in some cases could be impossible.

Thanks,
-- 
Fernando Gont
e-mail: ferna...@gont.com.ar || fg...@acm.org
PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1




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