From owner-freebsd-net@FreeBSD.ORG Tue Mar 7 21:04:41 2006 Return-Path: X-Original-To: net@freebsd.org 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 2C5ED16A422 for ; Tue, 7 Mar 2006 21:04:41 +0000 (GMT) (envelope-from silby@silby.com) Received: from relay01.pair.com (relay01.pair.com [209.68.5.15]) by mx1.FreeBSD.org (Postfix) with SMTP id A306143D45 for ; Tue, 7 Mar 2006 21:04:40 +0000 (GMT) (envelope-from silby@silby.com) Received: (qmail 80839 invoked from network); 7 Mar 2006 21:04:39 -0000 Received: from unknown (HELO localhost) (unknown) by unknown with SMTP; 7 Mar 2006 21:04:39 -0000 X-pair-Authenticated: 209.68.2.70 Date: Tue, 7 Mar 2006 15:04:36 -0600 (CST) From: Mike Silbersack To: "Julian H. Stacey" In-Reply-To: <200602282015.k1SKFhnQ033586@fire.jhs.private> Message-ID: <20060307150246.U40100@odysseus.silby.com> References: <200602282015.k1SKFhnQ033586@fire.jhs.private> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: Bernd Kopriva , net@freebsd.org Subject: Re: TCP_COMPAT_42 support X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 Mar 2006 21:04:41 -0000 On Tue, 28 Feb 2006, Julian H. Stacey wrote: > ------- > & the only things I typed into that box were > rlogin skyr > ls > I had previously started in another xterm > tcpdump -v -i rl0 -l | grep skyr > & got this: > ------- > 20:49:03.103230 IP (tos 0x0, ttl 15, id 240, offset 0, flags [none], length: 40) skyr.jhs.private.login > fire.jhs.private.978: F [tcp sum ok] 579:579(0) ack 25 win 0 > 20:49:03.103255 IP (tos 0x10, ttl 64, id 5009, offset 0, flags [DF], length: 40) fire.jhs.private.978 > skyr.jhs.private.login: . [tcp sum ok] ack 580 win 65535 > 20:49:03.103712 IP (tos 0x10, ttl 64, id 5010, offset 0, flags [DF], length: 40) fire.jhs.private.978 > skyr.jhs.private.login: F [tcp sum ok] 25:25(0) ack 580 win 65535 > 20:49:03.110660 IP (tos 0x0, ttl 15, id 241, offset 0, flags [none], length: 40) skyr.jhs.private.login > fire.jhs.private.978: . [tcp sum ok] ack 26 win 0 > Notes: > There's no tcpdump on my 4.2 box > skyr is the 4.2-BSD box > fire is the FreeBSD-5.3 box > high is just an alias in my named for 192.168.x.255 > > Could this problem be due to different broadcasting convetions for 4.2 & 4.4, > perhaps triggered by eg arpd or named etc doing discovery every minute or so ? > (But FreeBSD worked for years OK to that 4.2-BSD, & I recall all FreeBSD are 4.4) Looks to me like skyr decided to close the connection, and it closed as expected. I think the problem is probably above the TCP layer - have you tried an older version of rlogin to see if that makes a difference? Sorry about the delay in responding to this, I got sidetracked, and then I got a cold. :) Mike "Silby" Silbersack