[core] CoAP - HTTP proxies

"Turner, Randy" <Randy.Turner@landisgyr.com> Thu, 12 November 2020 15:57 UTC

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From: "Turner, Randy" <Randy.Turner@landisgyr.com>
To: "core@ietf.org WG" <core@ietf.org>
Thread-Topic: CoAP - HTTP proxies
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Date: Thu, 12 Nov 2020 15:57:13 +0000
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Subject: [core] CoAP - HTTP proxies
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HI All,

RFC 7252 provides a good description regarding CoAP-to-HTTP proxy (forward, reverse) operation and other documents detail some guidelines for doing this in an actual deployment.

In reading the EST-over-COAP(s) document, the text talks about a "registrar" (section 6) that performs proxy-like operations.  However, section 6 refrains from mentioning anything regarding the proxy operation described in RFC 7252.

Does this imply that if I want to deploy a generic CoAP-to-HTTP proxy between my constrained and non-constrained networks, AND I want to support an EST-over-CoAP registrar, that I actually need "2" proxies ?  Or can I use my generic CoAP to HTTP proxy to solve both generic CoAP to HTTP proxy and EST-over-CoAP(s) registrar functions ?  Understanding that if I want "1" proxy to do both, I may have to have special case code in my generic proxy to handle EST-over-COAP(s) specific behavior

Thanks,
Randy