From owner-freebsd-hackers Mon Aug 19 18:27:27 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id SAA03170 for hackers-outgoing; Mon, 19 Aug 1996 18:27:27 -0700 (PDT) Received: from panda.hilink.com.au (panda.hilink.com.au [203.2.144.5]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id SAA03162 for ; Mon, 19 Aug 1996 18:27:21 -0700 (PDT) Received: (from danny@localhost) by panda.hilink.com.au (8.7.5/8.7.3) id LAA15553; Tue, 20 Aug 1996 11:27:05 +1000 (EST) Date: Tue, 20 Aug 1996 11:27:04 +1000 (EST) From: "Daniel O'Callaghan" To: michael butler cc: hackers@freebsd.org Subject: Re: Which fragments to discard (was Re: ipfw vs ipfilter) In-Reply-To: <199608191902.FAA10601@asstdc.scgt.oz.au> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Tue, 20 Aug 1996, michael butler wrote: > > Speaking of which, what follows slid right past my border router :-( This > evening's (-stable + ipfw) log included .. > > Deny TCP :24940 202.14.234.65:26735 Fragment = 34 > Deny TCP :30569 202.14.234.65:25451 Fragment = 68 > Deny TCP :31008 202.14.234.65:29807 Fragment = 102 > Deny TCP :24940 202.14.234.65:26735 Fragment = 34 > Deny TCP :30569 202.14.234.65:25451 Fragment = 68 > Deny TCP :31008 202.14.234.65:29807 Fragment = 102 Hmm, Aren't they the kind of fragment offsets you would see from someone on a slip link with an MTU of 296? 34*8=272. Add 20 for IP and you get 292. Seems kina harsh to me to refuse to talk to the handicapped. Danny