From owner-freebsd-net Mon Feb 22 13: 1: 9 1999 Delivered-To: freebsd-net@freebsd.org Received: from roma.coe.ufrj.br (roma.coe.ufrj.br [146.164.53.65]) by hub.freebsd.org (Postfix) with ESMTP id 9293211C9E for ; Mon, 22 Feb 1999 13:01:01 -0800 (PST) (envelope-from jonny@jonny.eng.br) Received: (from jonny@localhost) by roma.coe.ufrj.br (8.8.8/8.8.8) id SAA02125 for net@freebsd.org; Mon, 22 Feb 1999 18:00:58 -0300 (EST) (envelope-from jonny) From: Joao Carlos Mendes Luis Message-Id: <199902222100.SAA02125@roma.coe.ufrj.br> Subject: IP frags from wcarchive ??? To: net@freebsd.org Date: Mon, 22 Feb 1999 18:00:58 -0300 (EST) X-Mailer: ELM [version 2.4ME+ PL43 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hi, Does anybody have a hint on what could cause this ? Feb 22 17:49:13 madrid /kernel: ipfw: 20150 Reset TCP 209.155.82.18 146.164.53.65 in via ed0 Fragment = 182 Feb 22 17:49:21 madrid last message repeated 5 times 209.155.82.18 is wcarchive.cdrom.com, 20150 is my ipfw rule that deny every TCP incoming packet for a disallowed (not allowed in a previous rule) port. The problem is why is it getting here fragmented. IIRC, FreeBSD's TCP has path MTU discovery, right ? On my side, every hop is an ethernet or fddi, until the international link, which has a 1500 byte mtu. Jonny -- Joao Carlos Mendes Luis M.Sc. Student jonny@jonny.eng.br Universidade Federal do Rio de Janeiro "This .sig is not meant to be politically correct." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message