From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wizmail.org (wizmail.org [IPv6:2a00:1940:107::2:0:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 47C983B2A4 for ; Thu, 19 Sep 2019 14:26:12 -0400 (EDT) ARC-Seal: i=1; cv=none; a=rsa-sha256; d=wizmail.org; s=r201803; t=1568917572; b=KJHzxOSWdd9ZSe0/yX71/dS6YlWiflU4inFcXSjDeJAB9LsPphfRky98wVR1cQTVTGyZUtkJU7 3AGH39D/XM8mVKn0OVOmvhXNzQHY9u7eoip17zq1yvohBSvlTVH37rMps+uPG6mM/wN6OqMuuG lRItLS9Senb3ub6is/Tj1FA=; ARC-Authentication-Results: i=1; wizmail.org; iprev=pass (vgate18.wizint.net) smtp.remote-ip=2a00:1940:107::1:2f:0; auth=pass (PLAIN) smtp.auth=jgh@wizmail.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed; d=wizmail.org; s=r201803; t=1568917572; bh=1lMNPyBugxg69eAgmP+xc8yDG52a+bcvpHVj/4kI2AA=; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:MIME-Version:Date: Message-ID:From:References:To:Subject:DKIM-Signature; b=qFF+Lmgp8O1sxqimdXqOg7aneTRy0BHcvPErXQUy1xVVqDDvYGf8yb7bzOnjaH0eqVGFQ/p/gv r0Ga2nHau6LPTDMUeJjqDsFttoZ6PDRln+vq9BvQjW/l8AbjSzwOhpjRlJyoD1b6Y43chZHAgx 1Q76DJXNzLMxq7kY/9x9crs=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=wizmail.org ; s=r201803; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:From:References:To:Subject:From:Sender:Reply-To: Subject:Date:Message-ID:To:Cc:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post: List-Owner:List-Archive; bh=WS1BBo5I0ho/8TOTG7+8xx6Bamkjkj9GyB4MbBGueWE=; b=N e77S+YEyL/ZbksE3lzcFO5FnoEbTto4dQ0VUSWkvWLRG1r3TRaL3NNq571EX83dkD6Ua4s3JkYj2L W3Mmpmvfk5uCdS04AOCWgbEc4Ro3RGuXaEqpWxJRCgvCU398nY/NRGrU+4zTfbl1n/wTHInu8CjvC W4ouFITLYkoGGgFU=; Authentication-Results: wizmail.org; iprev=pass (vgate18.wizint.net) smtp.remote-ip=2a00:1940:107::1:2f:0; auth=pass (PLAIN) smtp.auth=jgh@wizmail.org Received: from vgate18.wizint.net ([2a00:1940:107::1:2f:0] helo=lap.dom.ain) by wizmail.org (Exim 4.92.127) (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) with esmtpsa id 1iB186-0000Q7-RV for ecn-sane@lists.bufferbloat.net (return-path ); Thu, 19 Sep 2019 18:26:10 +0000 To: ecn-sane@lists.bufferbloat.net References: <87o8zgdvka.fsf@toke.dk> From: Jeremy Harris Autocrypt: addr=jgh@wizmail.org; prefer-encrypt=mutual; keydata= mQENBFWABsQBCADTFfb9EHGGiDel/iFzU0ag1RuoHfL/09z1y7iQlLynOAQTRRNwCWezmqpD p6zDFOf1Ldp0EdEQtUXva5g2lm3o56o+mnXrEQr11uZIcsfGIck7yV/y/17I7ApgXMPg/mcj ifOTM9C7+Ptghf3jUhj4ErYMFQLelBGEZZifnnAoHLOEAH70DENCI08PfYRRG6lZDB09nPW7 vVG8RbRUWjQyxQUWwXuq4gQohSFDqF4NE8zDHE/DgPJ/yFy+wFr2ab90DsE7vOYb42y95keK tTBp98/Y7/2xbzi8EYrXC+291dwZELMHnYLF5sO/fDcrDdwrde2cbZ+wtpJwtSYPNvVxABEB AAG0JkplcmVteSBIYXJyaXMgKG5vbmUpIDxqZ2hAd2l6bWFpbC5vcmc+iQE7BBMBAgAlAhsD BgsJCAcDAgYVCAIJCgsEFgIDAQIeAQIXgAUCVYAYBAIZAQAKCRC85YyM5B8y34iFB/9wozIY RogNdY1aejFFixb6++y4b1riyjMvWEULeEzDlQ0lMT6Z3PxXhZILD4y4aP7Kzx0ozXa5qaKy 41EAPKQoPipnRAH04QytJbIERvz8Tot/LeCVKUc0G9DVxOPBD03czTgqgz4EjV2qvnLF+rTU 0YBevrNCluKosGSd+3RvLWVu0hBhn9pELKfXJNSQXZb+TpHDhSDZ/gCrglBEOhA6YWbDb/4g z+5TFKdk+B++iAQZSHv7zISabjN+BPYgI47A+MU4JycoXaAUnMc0l5ba6fGNaIrzruE4aAZr lP5o+7mlU9Mm0QJqdqYxYPAiplJGrZv+YXH1fp5ueEK3l+NGuQENBFWABsQBCADphLHaKToR uR/E7THerBiCjDatwCaETOKOTY2zRBQpaQ32p/F2XIGLS8Cc27+grZSKQ6ZX0ZN47O+AFyFH F8DH90IXZFpJR3Rb8zgXT8jnLX08DM31eECZHnRzFhGlOmq6WAUlqB3GKCPUCY2c4eTRXyoX LteTxrXCYoj45y/YmvlZrlonBNjPBAyHiO/LNz+V7fZtNsN7N/XGrnLbcdNfNd+SD1ENmbLJ 8RvyymxguTyB/ka9JdjHHIoQEJ6L166B3hhfCHpt8iC0GPZkti9IMl0NoJ029jJm3Jq1qEce EBn5H5QMGn6Fq64iXwTsO1TMNUwpWx8pjvV7wVIxjI8ZABEBAAGJAR8EGAECAAkFAlWABsQC GwwACgkQvOWMjOQfMt9N6Af8CS2CTrMQFdhkGEtBXmL4ifD8UHFkBRBGmM8ZL2fWUBTZXT8m rdRMOK6tcPnKWaCvWvKr0knt970j/DyAgFmH8hgOi3yctigFecVDjjilAeCJMq38s1tYKYiL DbBdHWtdkA9uHZwq3lfd3QxcEEO3QamQF+dO7h8gAOXlG+po87Hm+E0wz4swIB8+S37Jzrx9 uu0LSFDfJCTK+TIKGa5Un8LxPxyq9WnnNDh72zK7BiRidk/s40KcNod83NM4Hn/sbGfyLa8s S0F3ME0S+ocSMOiu/ZHHOiwpLYNbwTJ7stZxGsrguWeT9P+amxbA/YlK95LedstwvN+WcHZ7 d++Arg== Message-ID: <8e8e5d6a-a378-ef91-5cf0-21633a170aa5@wizmail.org> Date: Thu, 19 Sep 2019 19:26:10 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.0 MIME-Version: 1.0 In-Reply-To: <87o8zgdvka.fsf@toke.dk> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 8bit X-Pcms-Received-Sender: vgate18.wizint.net ([2a00:1940:107::1:2f:0] helo=lap.dom.ain) with esmtpsa Subject: Re: [Ecn-sane] Issue with negotiating ECN with Cloudflare hosts? X-BeenThere: ecn-sane@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussion of explicit congestion notification's impact on the Internet List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Sep 2019 18:26:12 -0000 On 19/09/2019 18:50, Toke Høiland-Jørgensen wrote: > Is anyone else experiencing problems negotiating ECN when connecting to > Cloudflare? I see this for most sites protected by Cloudflare (such as > bufferbloat.net), but only when using IPv4: > I've opened a support request with my ISP, but thought I'd ask if anyone > else was seeing this? (Is anyone else running with ECN enabled?) Works for me: [jgh@lap ~]$ cat /proc/sys/net/ipv4/tcp_ecn 1 [jgh@lap ~]$ curl -v 1.1.1.1 * Trying 1.1.1.1:80... * TCP_NODELAY set * Connected to 1.1.1.1 (1.1.1.1) port 80 (#0) > GET / HTTP/1.1 > Host: 1.1.1.1 > User-Agent: curl/7.65.3 > Accept: */* > * Mark bundle as not supporting multiuse < HTTP/1.1 301 Moved Permanently < Date: Thu, 19 Sep 2019 18:23:34 GMT ... -- Cheers, Jeremy