Re: [netext] PMIP purists - is PMIP-NEMO impossible? draft-bernardos-netext-pmipv6-nemo-ps

[Behcet Sarikaya <[e-mail]>]

Hi Alex,

Thanks for bringing this issue up :-).

On Fri, Jul 13, 2012 at 4:23 AM, Alexandru Petrescu
<[e-mail]> wrote:
> NETEXT WG members,
>
> It was said at times that PMIP-NEMO is impossible.  PMIP is a core
> network protocol, where mobility is supported without modifying the MN.
>
> Or, in some PMIP-NEMO proposals, the MN _is_ modified: for example it
> adds DHCP Client on it; or other times it performs HNP Division.
>
> BEcause of this there exist statements that PMIP-NEMO is impossible.
>
> Do you think there are other reasons why PMIP-NEMO is impossible?
>

Basically, Nemo requires an MR. MR must be placed at the PMIP MN. This
is the fundamental problem. I don't think it is possible to make an MR
without changing MN. So far I have not seen any solutions.

You are talking about a protocol that is designed to not to modify MN.

> Do you think that running DHCP Client on MN is a modification to MN?
>

Standard clients are OK.

The problem with the WG draft is that it requires an DHCP client
extended with PD.

I would like draft-bernardos-netext-pmipv6-nemo-ps to be revised with
a discussion of this fundamental problem in PMIP-Nemo.


Regards,

Behcet