From owner-freebsd-net Tue Feb 18 1:21:25 2003 Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1714F37B401 for ; Tue, 18 Feb 2003 01:21:25 -0800 (PST) Received: from leonis.nus.edu.sg (leonis.nus.edu.sg [137.132.1.18]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5694043F85 for ; Tue, 18 Feb 2003 01:21:19 -0800 (PST) (envelope-from gokulpod@comp.nus.edu.sg) Received: from comp.nus.edu.sg (pod.ddns.comp.nus.edu.sg [137.132.81.90]) by leonis.nus.edu.sg (8.12.1/8.12.1) with ESMTP id h1I9MSwC023276; Tue, 18 Feb 2003 17:22:33 +0800 (SGT) Message-ID: <3E51FBCD.9080705@comp.nus.edu.sg> Date: Tue, 18 Feb 2003 17:24:29 +0800 From: Gokul Poduval User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20021003 X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-net@FreeBSD.ORG Cc: gokulpod@comp.nus.edu.sg, venka@comp.nus.edu.sg Subject: TCP SACK option Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Hello, I am running FreeBSD 4.5 on some machines for some TCP related experiments. When sending SYN packets, I observe that the SACK Permitted option isnt sent. Also there seems to be no sysctl interface to enable SACK in the GENERIC kernel. How do I enable SACK in FreeBSD 4.5 ? Yours Sincerely, Gokul Poduval To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message