Re: RFC6085 update to rfc2464bis

Has one witnessed a packet dump of IPv6-over-wired-Ethernet (not WiFi) 
featuring a dst _IP multicast_ address with the dst _MAC unicast_ address?

Alex

Le 09/01/2017 à 22:53, Bob Hinden a écrit :
> Hi,
>
> Based on update from RFC6085 I added two paragraphs to Section 7 of <draft-hinden-6man-rfc2464bis-01>.  These are:
>
>> 7.  Address Mapping -- Multicast
>>
>>    An IPv6 packet with a multicast destination address DST, consisting
>>    of the sixteen octets DST[1] through DST[16], is transmitted to the
>>    Ethernet multicast address whose first two octets are the value 3333
>>    hexadecimal and whose last four octets are the last four octets of
>>    DST.
>>
>>                   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>                   |0 0 1 1 0 0 1 1|0 0 1 1 0 0 1 1|
>>                   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>                   |   DST[13]     |   DST[14]     |
>>                   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>                   |   DST[15]     |   DST[16]     |
>>                   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
>    An IPv6 multicast packet may also be mapped to a unicast Ethernet
>    Link layer address as defined in Section 6.
>
>    An IPv6 node receiving an IPv6 packet with a multicast destination
>    address and an Ethernet link-layer unicast address must not drop the
>    packet as a result using of this form of address mapping.
>
> While RFC6085 isn’t exactly clear about the change it wants in RFC2464, I think this is about right.
>
> Comments?
>
> Thanks,
> Bob
>
>
>
>
>
>
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