RE: [nemo] RE: draft-ietf-nemo-home-network-models-05

["Pascal Thubert \(pthubert\)" <[e-mail]>]

>>>
>>> Moreover, there are potentially 2^64 LFNs behind an MR with MNP
>>> /64.
>> HA
>>> has no means to know which of those are active.  So will it send
>>> 2^64 periodic NAs as part of its proxy ND for LFNs?
>>
>> [Pascal] No, it will answer to NS coming from the Home Link for any
>> address that matches a registered MNP, and then pass the packets over
>>  the tunnel.
>
>NS is addressed to a multicast group.  In order for HA to receive that
>NS it should MLD JOIN it first, otherwise it doesn't receive it.  HA
>would need to send as many MLD JOINs as there are potential LFNs behind
>MR.  That's large, right?
>

[Pascal] This goes beyond our draft.
 
The short answer is that a proxy interface operates in promiscuous mode.

Dave Thaler has documented all this in chapter 4.1.3. "IPv6 ND Proxying"
of 
http://www.ietf.org/internet-drafts/draft-ietf-ipv6-ndproxy-04.txt
that we reference as [12].





>>> Does anyone plan to write such an implementation?
>>>
>> [Pascal] Dunno. Don't ask me if I like it... But something like that
>> has to be done if MNs or hosts connect to the home link... Part of
>> the price to pay to support aggregated mode.
>
>I am not sure the aggregated mode is needed in order to allow the MNNs
>to connect to MR's home link.  It is sufficient to have an HA on the
>_MNN_ home link and when MNN connects to MR's home link it would send
BU
>to its own HA.
[Pascal] I'm not sure what you want to say there. 
Do you mean a MNN that is also a MN?

Pascal