[6bone] Re: DAD scope ??

[Brian Haberman]

Each ipv6-over-foo doc discusses modifications to ND,
if necessary, for the particular link technology.  For
example, Section 5 of RFC 2023 (IPv6 over PPP) mentions
that DAD is redundant and needn't be run.

Regards,
Brian

Fred L. Templin wrote:
> Margaret/others,
> 
> Margaret Wasserman wrote:
> 
>> DAD is a link-local mechanism (uses link-local multicast
>> packets).  So, while it checks all addresses, it only
>> explicitly checks for duplicate addresses on the local link.
> 
> 
> What about DAD for links that are unicast-only? Alternatives
> I can imagine are:
> 
>  1. specify some sort of unicast mechanism for DAD
>  2. perform some sort of multicast emulation (e.g., MARS)
>  3. avoid DAD alltogether when one can assume that addresses
>     are uniquely assigned within the site
> 
> Thoughts?
> 
> Fred Templin
> ftemplin@iprg.nokia.com
> 
> 
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