Re: [MBONED] draft-ietf-mboned-64-multicast-address-format-03.txt

On 8/13/12 4:21 PM, Behcet Sarikaya wrote:
> Hi authors,
>
> Thanks for the revised draft, I find that the revision is in the right
> direction.
>
> I am confused on the prefix lengths:
> on Figure 2,
> ffxx:8000:0:abc::/96
> while in Section 3.1
> ffxx:8000::/20
>

The x's correspond to the flags and scope fields within the multicast 
address.  Take a look at:

http://www.iana.org/assignments/ipv6-multicast-addresses/ipv6-multicast-addresses.xml#ipv6-multicast-addresses-4

> How come these are reserved prefixes?
> What are the values that are reserved?
>
> If you look at RFC 6052, the unicast translation specification,
> 64:ff9b::/96 is defined as the Well-Known Prefix. There are no x's in
> the prefix definition.
>
> Regards,
>
> Behcet
>
> On Fri, Aug 10, 2012 at 1:49 AM,  <internet-drafts@ietf.org> wrote:
>>
>> A New Internet-Draft is available from the on-line Internet-Drafts directories.
>>   This draft is a work item of the MBONE Deployment Working Group of the IETF.
>>
>>          Title           : IPv6 Multicast Address With Embedded IPv4 Multicast Address
>>          Author(s)       : Mohamed Boucadair
>>                            Jacni Qin
>>                            Yiu L. Lee
>>                            Stig Venaas
>>                            Xing Li
>>                            Mingwei Xu
>>          Filename        : draft-ietf-mboned-64-multicast-address-format-03.txt
>>          Pages           : 13
>>          Date            : 2012-08-09
>>
>> Abstract:
>>     This document reserves two IPv6 multicast prefixes to be used in the
>>     context of IPv4-IPv6 interconnection.  The document specifies an
>>     algorithmic translation of an IPv6 multicast address to a
>>     corresponding IPv4 multicast address, and vice versa.  This
>>     algorithmic translation can be used in both IPv4-IPv6 translation or
>>     encapsulation schemes.
>>
>>
>>
>> The IETF datatracker status page for this draft is:
>> https://datatracker.ietf.org/doc/draft-ietf-mboned-64-multicast-address-format
>>
>> There's also a htmlized version available at:
>> http://tools.ietf.org/html/draft-ietf-mboned-64-multicast-address-format-03
>>
>> A diff from the previous version is available at:
>> http://www.ietf.org/rfcdiff?url2=draft-ietf-mboned-64-multicast-address-format-03
>>
>>
>> Internet-Drafts are also available by anonymous FTP at:
>> ftp://ftp.ietf.org/internet-drafts/
>>
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