Re: [Pana] Re: review pana spec

[Mohan Parthasarathy <mohanp at sbcglobal.net>]

Sounds good.

-mohan


----- Original Message ----
From: Yoshihiro Ohba <yohba at tari.toshiba.com>
To: Mohan Parthasarathy <mohanp at sbcglobal.net>
Cc: Yoshihiro Ohba <yohba at tari.toshiba.com>; pana at ietf.org
Sent: Thursday, November 30, 2006 6:15:57 PM
Subject: Re: [Pana] Re: review pana spec

On Thu, Nov 30, 2006 at 05:51:55PM -0800, Mohan Parthasarathy wrote:

(snip)

> 
> mohan> Sure. So, are you saying that this is not needed if PaC is not moving

> mohan> I thought it is required in cases where PaC changes its address
> mohan> from a link-local to global. These are still allowed, right ?

I see what you mean.  Moving scenario is just one case for IP address
change.  Sure, a link-local to global transition could be another
case.

> 
> 
> BTW, PANA framework does not discuss IP address configuration stuff
> any more, so referring to PANA framework does not help.
> 
> mohan> Interesting. Where will it be defined ?

This may be covered by deployment-specific PANA applicability
documents.  Said that, how about revising the section as follows?

"
5.6.  PaC Updating its IP Address

   A PaC's IP address used for PANA can change in certain situations,
   e.g., when the PaC moves from one IP link to another within the
   same PAA's realm.  Other situations may be described in deployment-
   specific PANA applicability documents.  In order to maintain the
   PANA session, the PAA needs to be notified about the change of PaC
   address.  In order to maintain the PANA session, the PAA needs to
   be notified about the change of the IP address of the PaC.

   After the PaC has changed its IP address used for PANA, it MUST
   send a PANA-Update-Request message to the PAA.  The PAA MUST update
   the PANA session with the new PaC address carried in the Source
   Address field of the IP header and return a PANA-Update-Answer
   message.  If there is an established PANA SA, both
   PANA-Update-Request and PANA-Update-Answer messages MUST be
   protected with an AUTH AVP.
"

Regards,
Yoshihiro Ohba





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