On 03/06/2012 01:49 PM, Dave Taht wrote:
>
>
> On Tue, Mar 6, 2012 at 10:23 AM, james woodyatt <j...@apple.com
> <mailto:j...@apple.com>> wrote:
>
> On Mar 6, 2012, at 07:15 , Michael Richardson <m...@sandelman.ca
> <mailto:m...@sandelman.ca>> wrote:
> > "Mark" == Mark Andrews <ma...@isc.org <mailto:ma...@isc.org>>
> writes:
> > Mark> A significant percentage of home machines will roam and
> those
> > Mark> machines will need to be able to register their current
> > Mark> address in the DNS. I do this today when my Mac roams.
> TSIG
> > Mark> is unavoidable and cheap. UPDATE itself is relatively
> cheap.
> >
> > Are you asking for a link-local/mDNS-across-the-homenet
> leap-of-faith
> > way to do key establishment so that TSIG can be initialized?
>
>
> The alternative is to delegate all that business to 3rd parties
> with big data centers in the proverbial cloud. Yes, that means
> that you're relying on Internet service to be constantly available
> to resolve service locations on your local home network, but it
> does seem to work reasonably well today.
>
>
> In some parts of the world, maybe, like california.
>
> Elsewhere, say in Nicaragua... not so much. I would personally prefer
> that those designing this stuff with *any* dependencies on centralized
> services spend some time doing research in south america, Libya,
> africa, eastern europe, the australian outback, and places like that...
>
>
Or Peru, or Uruguay, or Uganda, or.... (given my OLPC experience).
I have to emphasise what Dave's saying here: requiring centralised
services to work at all is really a non-starter, not to mention what
happens when things break in the developed world.
What's more, in those parts of the world, they can't afford either the
reliable connectivity or expensive kit in schools/houses and often use
off the shelf commodity home routers even in places we'd probably do
something much better. My point of view is to do it right in the home,
so everyone benefits at the low end.
- Jim
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