[6bone] Re: DAD scope ??

[Ole Troan]

> 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.

my interpretation of IPv6 over PPP is different. DAD is redundant only
for the link-local address, but needs to be run for all other
addresses on the link.

/ot

> 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
>> --------------------------------------------------------------------
>> IETF IPng Working Group Mailing List
>> IPng Home Page:                      http://playground.sun.com/ipng
>> FTP archive:                      ftp://playground.sun.com/pub/ipng
>> Direct all administrative requests to majordomo@sunroof.eng.sun.com
>> --------------------------------------------------------------------
>>
>
>
> --------------------------------------------------------------------
> IETF IPng Working Group Mailing List
> IPng Home Page:                      http://playground.sun.com/ipng
> FTP archive:                      ftp://playground.sun.com/pub/ipng
> Direct all administrative requests to majordomo@sunroof.eng.sun.com
> --------------------------------------------------------------------