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Re: Question regarding HTTP/2, SNI, and IP addresses

From: Martin Thomson <mt@lowentropy.net>
Date: Wed, 23 Jun 2021 18:47:54 +1000
Message-Id: <799d9136-9fcd-4f9f-8589-d559520aac42@beta.fastmail.com>
To: ietf-http-wg@w3.org


On Wed, Jun 23, 2021, at 18:30, Stephane Bortzmeyer wrote:
> > > The TLS implementation MUST support the Server Name Indication (SNI) [TLS-EXT] extension to TLS. If the server is identified by a domain name [DNS-TERMS], clients MUST send the server_name TLS extension unless an alternative mechanism to indicate the target host is used.
> > 
> 
> What are the possible "alternative mechanisms"?

Specifically? ECH is what we were thinking, but it could be something else too.

The important part is that both endpoints agree on the name. Just like with ALPN and the choice of protocol. We don't get that for IP addresses, but only for lack of a mechanism really.
Received on Wednesday, 23 June 2021 08:48:44 UTC

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