From owner-freebsd-bugs Thu Dec 10 09:06:25 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id JAA15860 for freebsd-bugs-outgoing; Thu, 10 Dec 1998 09:06:25 -0800 (PST) (envelope-from owner-freebsd-bugs@FreeBSD.ORG) Received: from cs.rice.edu (cs.rice.edu [128.42.1.30]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id JAA15855 for ; Thu, 10 Dec 1998 09:06:24 -0800 (PST) (envelope-from aron@cs.rice.edu) Received: from noel.cs.rice.edu (noel.cs.rice.edu [128.42.1.136]) by cs.rice.edu (8.9.0/8.9.0) with ESMTP id LAA09270 for ; Thu, 10 Dec 1998 11:06:13 -0600 (CST) From: Mohit Aron Received: (from aron@localhost) by noel.cs.rice.edu (8.9.0/8.9.0) id LAA11488 for freebsd-bugs@freebsd.org; Thu, 10 Dec 1998 11:06:12 -0600 (CST) Message-Id: <199812101706.LAA11488@noel.cs.rice.edu> Subject: T/TCP implementation To: freebsd-bugs@FreeBSD.ORG Date: Thu, 10 Dec 1998 11:06:12 -0600 (CST) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hi, I'm using FreeBSD-2.2.6. I'm running a TCP transfer between two machines - one machine has T/TCP turned off while the other doesn't. (I turned T/TCP off using command "sysctl -w net.inet.tcp.rfc1644=0"). The problem is that even though the machine that has T/TCP turned off doesn't send any T/TCP specific options, it still receives these options in non-SYN segments from the other machine. Moreover, it still processes the T/TCP specific options sent by the other machine. In a nutshell there are two problems: 1) The machine where T/TCP is enabled shouldn't be sending T/TCP specific options in segments other than the initial SYN segment as the corresponding SYN from the other end didn't contain any such options. 2) Even when T/TCP options are received on the machine where T/TCP is disabled, it should ignore them. - Mohit To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message