On Wed, 13 Mar 2013, Michael Thomas wrote:
On 03/13/2013 10:21 PM, Stuart Cheshire wrote:
This is all commonly done today
The problem here is that you actually believe this.
I know plenty people who do this (airplay), and I know others who would do
this if they could get it working easily (they have one vendor TV and a
different vendor smartphone which doesn't support a common protocol for
the smartphone to tell the TV to start playing whatever was being watched
on the smartphone). Apple Airplay works ok, but I only get it working
between Apple devices. I'm sure there are other vendor specific protocols
that do similar things.
Let's put this into a different perspective:
If service discovery and resulting address independence doesn't work, then
it's going to be a pain to renumber. With SD, I imagine that changing
addresses in the home (with PD etc) wouldn't impact the user experience in
a fatal way, thus removing some of the need for ULAs (which I think is an
ugly hack considering current state of RA handling in devices where it's
all-or-nothing for putting a default route towards the RA announcing
device).
Things should be addressed by DNS or alike, and they should have unique
names/identifiers. Never should an IPv4 or IPv6 address be used. SD needs
to just work, and it needs to work in a routed home, and preferrably it
should work from the Internet as well.
Vision statement: I want to be able to use IPSEC to talk to everything in
my home from whereever I am, and the authorisation to talk to my home
devices should come from common key/cert management.
--
Mikael Abrahamsson email: [email protected]
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