Re: [WoT IG]: Issues with bi-directional communication for CoAP and other IoT-related protocols

greetings all

IMHO, the assumption that the device still has the same IP address as it
had the last time it and the cloud server communicated is problematic.

in my mind, for various reasons, there will likely be a proxy server on the
same network as the device, whose job it is to proxy stuff on behalf of an
entity requesting access (it might also do some auth, etc).

so the device communicates its abstracted address (eg
HeartMonitor._wot._tcp.local for mDNS) to the cloud server, facilitating an
address-neutral discovery on the way back. the proxy could also set up port
forwarding etc for the duration of the connection.

anyway, just a thought.

regards
Jason






On Tue, Nov 17, 2015 at 3:39 AM, Nilsson, Claes1 <
Claes1.Nilsson@sonymobile.com> wrote:

> Hi Jaime,
>
> The slides are here:
> https://lists.w3.org/Archives/Public/public-wot-ig/2015Oct/att-0104/Issues_with_bi-directional_communication_for_CoAP_and_other_IoT_related_protocols.pdf
>
> BR
>   Claes
>
> -----Original Message-----
> From: Jaime Jiménez [mailto:jaime.jimenez@ericsson.com]
> Sent: den 17 november 2015 10:05
> To: Nilsson, Claes1
> Cc: Hund, Johannes; public-wot-ig@w3.org
> Subject: Re: [WoT IG]: Issues with bi-directional communication for CoAP
> and other IoT-related protocols
>
> Hi,
>
> this sounds like an interesting topic. Do we have a link to the mentioned
> slides?
>
> Thanks,
> - - Jaime Jimenez
>
> > On 03 Nov 2015, at 15:17, Nilsson, Claes1 <Claes1.Nilsson@sonymobile.com>
> wrote:
> >
> > No problem Johannes, at the break-out I did not mention it as I thought
> that we didn't get enough time for it. So let us talk about it, as you
> suggest, at an upcoming TF call. However, the coming Thursday, i.e. Nov
> 4th, is not well suited for me as I can only attend the first 30 min.
> >
> > BR
> >  Claes
> > -----Original Message-----
> > From: Hund, Johannes [mailto:johannes.hund@siemens.com]
> > Sent: den 3 november 2015 12:05
> > To: Nilsson, Claes1; public-wot-ig@w3.org
> > Subject: AW: [WoT IG]: Issues with bi-directional communication for CoAP
> and other IoT-related protocols
> >
> > Sorry, we did not cover this in the break-out.
> > Please voice up when I blatantly forget stuff like this.
> >
> > My suggestion would be to cover this in one of the upcoming TF calls.
> >
> > BR Johannes
> >
> >> Referring to previous maiol discussion on this topic I attach a few
> >> slides that I may show at our ongoing Sapporo TPAC meeting, e.g. at
> >> the TF-AP breal out session.
> >>
> >> BR
> >>  Claes
>
>
>