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[dnssd] Web Proxy Discovery on IoT/Matter

Josh Cohen <joshco@gmail.com> Fri, 01 December 2023 18:34 UTC

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From: Josh Cohen <joshco@gmail.com>
Date: Fri, 01 Dec 2023 13:34:04 -0500
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Subject: [dnssd] Web Proxy Discovery on IoT/Matter
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Hi Stuart, Ted, and WG members,



During the dnssd  meeting at ietf118, the discussion touched on IoT/matter,
and I mentioned the WPAD discussions and the origins of WPAD post sent to
intarea.[1][2]



Is it fair to asset that it is conceivable that IoT devices will be
connected to networks where a proxy server must be used to access their
respective cloud services, but must go direct to their local controller
hubs, or something similar?



I am curious what, if any, solution is being used by matter to discover web
proxy servers, or if that is a TBD?



For discovery, what would be the preferred solutions dnssd/svrloc, dhcp, or
other on these devices?



I am putting together an update of the WPAD draft to modernize the
discovery schemes, and am interested in learning more about the relevant
scenarios in the IoT space.



>From a config file format POV, running a JavaScript function may be
infeasible, especially if the device needs resources for whatever the
functional purpose of the device is.



So, the JSON PVD format might be easier to swallow than the JavaScript PAC
file.



When dealing with Thread, is this scenario somehow handled by the border
router?



WPAD origins Email:
https://mailarchive.ietf.org/arch/msg/int-area/IHzF0V7nPNlfgQjiU7utUo85ngU/

PDF:
https://mailarchive.ietf.org/arch/msg/int-area/IHzF0V7nPNlfgQjiU7utUo85ngU/2/

---
*Josh Co*hen

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