On Tue, 15 Oct 2002, Tony Hain wrote:
> [...] it would seem the prudent thing for a MN to do is
> establish DAD for all candidate prefixes well before it is ready to
> start using them. [...]

Isn't there a problem with how this could be done, as currently specified?

One can't perform DAD before being on the link.

> > -----Original Message-----
> > From: [EMAIL PROTECTED] 
> > [mailto:[EMAIL PROTECTED]] On Behalf Of Nick 
> > 'Sharkey' Moore
> > Sent: Monday, October 14, 2002 7:58 PM
> > To: [EMAIL PROTECTED]
> > Subject: Optimistic DAD draft ...
> > 
> > 
> > G'day IPng-ers,
> > 
> >     One of the big issues in getting low-latency
> > handovers working for IPv6 mobility is the long delay
> > involved in completing DAD.
> > 
> > One option is to allow the Mobile Node to communicate
> > while the address is still Tentative (optimistically assuming 
> > that DAD will succeed), but to adjust its ND / SAA behaviour 
> > in order to minimize disruption in case of an address 
> > conflict (and maintain correct interoperation with unmodified nodes).
> > 
> >     We've kicked the idea around a little on mobile-ip,
> > and I've formalized my thoughts into an internet draft,
> > which should get published soon.  In the meantime, you can
> > find it at <http://www.ctie.monash.edu.au/ipv6/fastho.htm>
> > (tentatively titled draft-moore-ipv6-optimistic-dad-00).
> > 
> >         I'd be interested in your opinions on the draft,
> > and its potential suitability for standards track.
> > 
> > 
> > cheers,
> >         Nick
> > -- 
> > Nick 'Sharkey' Moore                    <[EMAIL PROTECTED]>
> > Research Fellow, CTIE                   Tel: +61 3 9905 3707
> > Monash University,  Australia           Fax: +61 3 9905 5358  
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-- 
Pekka Savola                 "Tell me of difficulties surmounted,
Netcore Oy                   not those you stumble over and fall"
Systems. Networks. Security.  -- Robert Jordan: A Crown of Swords

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