From owner-freebsd-net@freebsd.org Sat Sep 5 00:42:09 2015 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id AD65B9CA8CD for ; Sat, 5 Sep 2015 00:42:09 +0000 (UTC) (envelope-from kmacybsd@gmail.com) Received: from mail-io0-x22a.google.com (mail-io0-x22a.google.com [IPv6:2607:f8b0:4001:c06::22a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8666C19A8 for ; Sat, 5 Sep 2015 00:42:09 +0000 (UTC) (envelope-from kmacybsd@gmail.com) Received: by ioiz6 with SMTP id z6so41090417ioi.2 for ; Fri, 04 Sep 2015 17:42:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:date:message-id:subject:from:to:content-type; bh=cFz4j6Vpg93W3KpgttbEY1dQJR4TaMoZePaamRfJiWs=; b=Sfdkgz4UwRdOZQmyFpJXZ6IAgolgPmbid0qHz10JXqF1gAr1GoWCm5qFplz2mzmVo2 I3+2EveCBf42nkKOhcb6L9XYnILIEgPcuD+hFIAbDl1ySHKpP35ACUika1xxwQid7Ep4 lmu7c+qT25Jz9Zoff4Gb0ermJrkDFY4+mw2G/UTNvpomPoPnxZgbKAjKnPx12HYWos1k zedPuUmvV7gqZ0o+fr8yYZ/BAop7Ir2dIsePC0vKVcloS8v8vlli0dkApyZRTXu7+NmY MqvynFn8h8aq0U8SySZJXkQbudQA8zTEEQKH/0z3Lken917Sf8NDCnzkus5poFgKuXV2 RReA== MIME-Version: 1.0 X-Received: by 10.107.167.136 with SMTP id q130mr11849174ioe.2.1441413728559; Fri, 04 Sep 2015 17:42:08 -0700 (PDT) Sender: kmacybsd@gmail.com Received: by 10.36.30.202 with HTTP; Fri, 4 Sep 2015 17:42:08 -0700 (PDT) Date: Fri, 4 Sep 2015 17:42:08 -0700 X-Google-Sender-Auth: HWt4lkl8YzaIeCUkDOkC3dQ-3gc Message-ID: Subject: default ECN settings From: "K. Macy" To: "freebsd-net@freebsd.org" Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 05 Sep 2015 00:42:09 -0000 By default ECN is completely disabled on FreeBSD. On Linux the default is to disable it outbound (not request it) but enable it inbound (accept new connections asking for it). Is there a good reason to only set ECN_PERMIT on inbound connections if the system is doing ECN on outbound connections?