Re: DoCoMo Implementation Issues with CTP

>  > > Well, CTAR includes MN's IP(v4,v6) addresses. So does
>  > > PCTD. So, nAR can still match the contexts. Since the token
>  > > does not include PAR's address, verification can still be
>  > > done.
>  > >
>  > I think I didnot make my point clear.
>  > MN is claiming that it came from one pAR IP Address(IPV6),
>  > but the nAR has a PCTD that says pAR IP is different(IPv4),
>  > How can nAR verify the Token without matching the pAR IP ?
>
> => Just out of curiosity, why do you expect the protocol
> to function in this scenario? If I understand you correctly
> the MN is moving from a v6 AR to a v4 only one. Even if
> CT worked in this scenario, many other things will break.
> Is there a requirement for CT to work here ?
>

I believe there is no requirement for CTP between IP versions. It might be
possible, depending on the context type, but I don't think it should be
required in general.

Perhaps the draft should specifically forbid this?

            jak