Re: [tsvwg] Comments on draft-ietf-tsvwg-transport-encrypt-14
Gorry Fairhurst <gorry@erg.abdn.ac.uk> Mon, 06 April 2020 10:23 UTC
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To: Joseph Touch <touch@strayalpha.com>, "Black, David" <David.Black@dell.com>
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From: Gorry Fairhurst <gorry@erg.abdn.ac.uk>
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Date: Mon, 06 Apr 2020 11:23:25 +0100
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Subject: Re: [tsvwg] Comments on draft-ietf-tsvwg-transport-encrypt-14
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On 05/04/2020 23:50, Joseph Touch wrote: > > >> On Apr 5, 2020, at 3:32 PM, Black, David <David.Black@dell.com >> <mailto:David.Black@dell.com>> wrote: >> >> The text on ports is in Section 3.1.1 of the draft - it makes a lot >> of sense to refer to it rather than cover the same territory again, >> so mea culpa for overlooking that text. Also, in 20/20 hindsight, >> “more effort” was not the right word choice to convey “more involved” >> or “more complex” – besides, it’s better to simply point out that the >> transport protocol has to be identified in order to use its headers. >> ... >> OLD >> UDP-based protocols often do not use well-known port numbers. >> NEW >> UDP-based protocols often do not use well-known port numbers, >> and use of a well-known port number is not limited to the >> protocol for which the port is well known [RFC7605]. > > RFC7605 doesn’t say this, or at least most of this. > > Yes, there’s no rule that well-known port numbers are used. But that’s > not either unique to nor biased towards UDP vs TCP. > > Joe I understand, I think we can mention RFC7605 in 3.1.1 by adding this to the para about ports to read something like: "In some uses, an assigned transport port (e.g., low-numbered port) can identify the protocol [RFC7605]. However, port information alone is not sufficient to guarantee identification. Applications can use arbitrary ports and do not need to use well-known port numbers. The use of a well-known port number is also not limited to the protocol for which the port is well known. " Gorry
- [tsvwg] Comments on draft-ietf-tsvwg-transport-en… Tom Herbert
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Black, David
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Tom Herbert
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Black, David
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Gorry Fairhurst
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Black, David
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Joseph Touch
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Gorry Fairhurst
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Joseph Touch
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Gorry Fairhurst
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Joseph Touch
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Gorry Fairhurst
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Tom Herbert
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Joseph Touch
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Tom Herbert
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Joseph Touch
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Black, David
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Tom Herbert
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Gorry Fairhurst
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Tom Herbert
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Spencer Dawkins at IETF
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Tom Herbert
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Spencer Dawkins at IETF
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Gorry Fairhurst
- Re: [tsvwg] Comments on draft-ietf-tsvwg-transpor… Spencer Dawkins at IETF