[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.
>
> The last sentence of the 2nd paragraph in Section 5 states:
>
>       "Therefore it is recommended that for PPP links with
>        the IPV6CP Interface-Token option enabled the default
>        value of the DupAddrDetectTransmits autoconfiguration
>        variable [3] be zero."
>
> If DupAddrDetectTransmits is set to zero, then DAD is not run
> on the interface since it is an interface variable.  The only
> thing that implies that this only is for link-local addresses
> is the title of the section.

agree the text needs to be clarified. it is as necessary to do DAD for
all addresses (apart from the link-local) on PPP links as it is for
Ethernet links.

btw: since you are using the term "Interface-Token" are you referring
to the old PPP RFC, and not RFC2472?

/ot