Mikael,

>>> It's my opinion that we can't rely on 5.5 working. Hosts need to not 
>>> support 5.5 and things should still work.
>> 
>> Why do hosts need to not support 5.5?
> 
> From RFC6724:
> 
> "Discussion: An IPv6 implementation is not required to remember
>      which next-hops advertised which prefixes.  The conceptual models
>      of IPv6 hosts in Section 5 of [RFC4861] and Section 3 of [RFC4191]
>      have no such requirement.  Hence, Rule 5.5 is only applicable to
>      implementations that track this information."
> 
> So since 5.5 is not a MUST (and most hosts today do not support 5.5 as far as 
> I know), designing HOMENET based on 5.5 support on all hosts seems 
> misdirected.
> 
> ... or what am I missing?

how do you want it to work?

the tools we have currently are:
 - ICMP redirect
 - ICMP type 1, code 5
 - DHCP option for SAS/DAS policy
 - RFC6724 rule 5.5
 - RFC4191

what is missing?

cheers,
Ole
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