Subject: Re: [MEXT] FW: DISCUSS and COMMENT: draft-ietf-mext-nemo-v4traversal

From: Hesham Soliman <[email-masked]>
Date: Mon, 23 Feb 2009 22:42:56 +1100

On 23/02/09 10:39 PM, "[email-masked]"
<[email-masked]> wrote:

> So there will be a Destination Option / Home Address Option in an MPS
> when the MN is attached to an IPv4-only foreign network?

=> Yes, we have to do that according to 3775. I assume we have to leave the
HoA in the src address as well. Looks silly but there doesn't seem to be
another option apart from tunnelling or using a mapped address and we can't
do the latter. The former is even sillier.

Hesham

> 
> Christian 
> 
>> -----Original Message-----
>> From: Hesham Soliman [mailto:[email-masked]]
>> Sent: 23. februar 2009 12:17
>> To: Kaas-Petersen Christian; [email-masked]; [email-masked]
>> Subject: Re: [MEXT] FW: DISCUSS and COMMENT:
>> draft-ietf-mext-nemo-v4traversal
>> 
>>> 
>>> In my view, this does not change with DSMIP, except that the home
>>> address is no longer stored in a destination option but in the
>>> (inner) IPv6 source address.  Because the mobile node already knows
>>> its IPv6 home address, I should think it a valid
>> functionality to ask
>>> the home agent of any updates in the IPv6 home prefixes.
>> 
>> => DSMIP will not change the use of the HAO for MPS and MPA.
>> The HAO will still be used.
>> 
>> Hesham
>>