Re: PPAC needed? (was RE: [Pana] Other suggestions for pana-pana)

[Yoshihiro Ohba <yohba at tari.toshiba.com>]

Alper,

I think Mohan is proposing that the access network that uses PANA is
expected to be designed such that PaC does not require to change its
IP address used for PANA communication before and after PANA
authentication (PaC may acquire additional IP addresses after
successful PANA authentication, though).

Yoshihiro Ohba


On Sun, Oct 08, 2006 at 01:04:03AM +0300, Alper Yegin wrote:
> > If the initial address (PRPA) is not a link-local address, then you can
> > use it both before and after PANA. Either it is a private address that
> > gets NATed or a public address. If the underlying
> > protection (e.g. IPsec) needs another address, it may have to get another
> > address which PANA does not have to worry about it i guess.
> > Missing something ?
> 
> You only talked about the IPsec case.
> 
> But for example in DSL case, the PaC cannot know whether the PRPA is good
> for post-PANA data communication or not. Unless the PRPA is a link-local
> address, the PaC cannot tell one way or the other. And there is no IKE/IPsec
> in that case.
> 
> Alper
> 
> 
> 
> 
> > 
> > -mohan
> > 
> > 
> > ----- Original Message ----
> > From: Alper Yegin <alper.yegin at yegin.org>
> > To: Mohan Parthasarathy <mohanp at sbcglobal.net>; Yoshihiro Ohba
> > <yohba at tari.toshiba.com>; Mark Townsley <townsley at cisco.com>
> > Cc: pana at ietf.org
> > Sent: Friday, October 6, 2006 1:19:37 PM
> > Subject: RE: PPAC needed? (was RE: [Pana] Other suggestions for pana-pana)
> > 
> > Mohan,
> > 
> > > So,
> > > we can
> > > potentially make it by restricting what sort of an address it obtains
> > > before running
> > > PANA so that it does not require a new one after (it can be outside the
> > > PANA spec)
> > 
> > I'm not sure I understand this proposal. Can you please elaborate?
> > 
> > Thanks.
> > 
> > Alper
> > 
> > 
> > 
> > 
> 
> 
> 

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