From owner-freebsd-questions Mon Feb 26 09:27:54 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id JAA02509 for questions-outgoing; Mon, 26 Feb 1996 09:27:54 -0800 (PST) Received: from til_cad1.kasten.on.ca ([192.139.189.67]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id JAA02503 for ; Mon, 26 Feb 1996 09:27:37 -0800 (PST) Message-Id: <199602261727.JAA02503@freefall.freebsd.org> Received: from localhost by til_cad1.kasten.on.ca with SMTP (1.37.109.4/16.2) id AA29718; Mon, 26 Feb 96 12:30:13 -0500 Date: Mon, 26 Feb 96 12:30:15 -0500 From: Peter MacKenzie X-Mailer: Mozilla 1.1N (X11; I; HP-UX A.09.01 9000/730) Mime-Version: 1.0 To: questions@freebsd.org Subject: invalid option in TCP header X-Url: http://www.freebsd.org/mailto.html Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii Sender: owner-questions@freebsd.org Precedence: bulk Is there an invalid option in the option list of the TCP header with FreeBSD 2.1.0? When I open a telnet session the first packet has the SYN control bit correctly set. The first four bytes of the TCP options correctly refer to the maximum segment size however the next byte is a no operation option (01, should this be an end of option list) and the next one is (as far as I am aware) an invalid option (03). Does BSD expect that this should be ignored or is there a new option that I am not aware of? Thanks, Peter.