Yes. And in ietf-map section1, it declares:

The residual IPv4 over IPv6 mechanisms must be capable of algorithmically
map between an IPv4 prefix, IPv4 address or a shared IPv4 address and an
IPv6 address

It is not consistent with EA-bit=0 case.

On Wed, Jun 27, 2012 at 3:43 PM, Peng Wu <[email protected]> wrote:

> On Wed, Jun 27, 2012 at 2:57 PM, Satoru Matsushima
> <[email protected]> wrote:
> >
> > On 2012/06/27, at 15:38, Peng Wu wrote:
> >
> >>> Oh, you don't argue that OSPF covers an use case which is also covered
> by RIP. So then why are you arguing that an use case of MAP is eventually
> same with the LW46 use case?
> >> I'm clearly saying they have different use cases, but that's not the
> >> point. Let me repeat. If I want RIP, you cannot just place RIP into
> >> OSPF,
> >
> > Agree on that it's not what I'm intended to. MAP thus never put DHCPv4
> over IPv6, nor PCP into its specification. Please keep your mind in peace.
> >
> >> put an OSPF "face" on it, and force me to use the OSPF "suite"
> >> while the essence of the protocol I'm using is still RIP.
> >
> > Not to force, MAP uses its MAP protocol to an use case which also could
> be covered by LW46's DHCPv4 over IPv6, or PCP. Correct?
> >
> Yes, there are mutliple choices for the provisioning protocol. But the
> essence here is 1.no v4-v6 address coupling, and thereby 2.explicitly
> provisoin the v4 address and port set. I would say the ORIGINAL MAP
> fits with neither points here.
>
> BTW,  if I may, my suggestion on MAP to deal with the situation of EA
> bit=0 is, just say in this case there is no algorithmic address
> mapping so it's not consistent with general case or the original
> motivation, and thereby not covered. I believe it is not the main
> scenario you want to cover and this way you keep MAP clean.
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>



-- 
==============================================
Qiong Sun
China Telecom Beijing Research Institude


Open source code:
lightweight 4over6: *http://sourceforge.net/projects/laft6/*
PCP-natcoord:* http://sourceforge.net/projects/pcpportsetdemo/ *
===============================================
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