[v6ops] rfc8305 and apple iOS
Yannis Nikolopoulos <yanodd@otenet.gr> Sat, 27 February 2021 17:16 UTC
Return-Path: <yanodd@otenet.gr>
X-Original-To: v6ops@ietfa.amsl.com
Delivered-To: v6ops@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 35AAC3A0E98 for <v6ops@ietfa.amsl.com>; Sat, 27 Feb 2021 09:16:48 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.899
X-Spam-Level:
X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vOErGc_ld_a9 for <v6ops@ietfa.amsl.com>; Sat, 27 Feb 2021 09:16:46 -0800 (PST)
Received: from calypso.otenet.gr (calypso.otenet.gr [83.235.67.36]) by ietfa.amsl.com (Postfix) with ESMTP id 77EF73A0E95 for <v6ops@ietf.org>; Sat, 27 Feb 2021 09:16:46 -0800 (PST)
Received: from [192.168.1.16] (ppp-2-86-140-180.home.otenet.gr [2.86.140.180]) (Authenticated sender: yanodd@otenet.gr) by calypso.otenet.gr (ESMTP) with ESMTPSA id CD692138102 for <v6ops@ietf.org>; Sat, 27 Feb 2021 19:16:44 +0200 (EET)
To: v6ops@ietf.org
From: Yannis Nikolopoulos <yanodd@otenet.gr>
Message-ID: <0e9fb3ab-a32b-5d60-1cec-121f9b20b934@otenet.gr>
Date: Sat, 27 Feb 2021 19:16:36 +0200
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.6.1
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="------------FB9A3C99B2BFACA652F34776"
Content-Language: en-US
Archived-At: <https://mailarchive.ietf.org/arch/msg/v6ops/979nh5oQk-muEEcFJpxBwid2DJc>
Subject: [v6ops] rfc8305 and apple iOS
X-BeenThere: v6ops@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: v6ops discussion list <v6ops.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/v6ops>, <mailto:v6ops-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/v6ops/>
List-Post: <mailto:v6ops@ietf.org>
List-Help: <mailto:v6ops-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/v6ops>, <mailto:v6ops-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 27 Feb 2021 17:16:48 -0000
Hello,
It's been a while, but I was under the impression that Apple's iOS
honors rfc8305, section 3:
"When a client has both IPv4 and IPv6 connectivity and is trying to
establish a connection with a named host, it needs to send out both
AAAA and A DNS queries. Both queries SHOULD be made as soon after
one another as possible, with the AAAA query made first and
immediately followed by the A query.
Implementations SHOULD NOT wait for both families of answers to
return before attempting connection establishment"
I was running some tests on an iphone 11 w/ safari and realized that the client waits for both DNS replies before sending the
first SYN packet (got several captures). Has anybody got any insights on this?
Yannis
- Re: [v6ops] rfc8305 and apple iOS Yannis Nikolopoulos
- [v6ops] rfc8305 and apple iOS Yannis Nikolopoulos
- Re: [v6ops] rfc8305 and apple iOS Ted Lemon
- Re: [v6ops] rfc8305 and apple iOS Ted Lemon
- Re: [v6ops] rfc8305 and apple iOS David Schinazi
- Re: [v6ops] rfc8305 and apple iOS Yannis Nikolopoulos
- Re: [v6ops] rfc8305 and apple iOS David Schinazi
- Re: [v6ops] rfc8305 and apple iOS Tommy Pauly