From owner-freebsd-bugs@FreeBSD.ORG Mon Aug 21 12:50:16 2006 Return-Path: X-Original-To: freebsd-bugs@hub.freebsd.org Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 48D7316A4DE for ; Mon, 21 Aug 2006 12:50:16 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 77FEC43D53 for ; Mon, 21 Aug 2006 12:50:15 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.4/8.13.4) with ESMTP id k7LCoFJl022488 for ; Mon, 21 Aug 2006 12:50:15 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.4/8.13.4/Submit) id k7LCoFZa022487; Mon, 21 Aug 2006 12:50:15 GMT (envelope-from gnats) Resent-Date: Mon, 21 Aug 2006 12:50:15 GMT Resent-Message-Id: <200608211250.k7LCoFZa022487@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Alexander Shkurko Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 815C316A4E0 for ; Mon, 21 Aug 2006 12:48:07 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [216.136.204.117]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3E83143D5D for ; Mon, 21 Aug 2006 12:48:07 +0000 (GMT) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.13.1/8.13.1) with ESMTP id k7LCm6YT036511 for ; Mon, 21 Aug 2006 12:48:06 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.13.1/8.13.1/Submit) id k7LCm6Gj036510; Mon, 21 Aug 2006 12:48:06 GMT (envelope-from nobody) Message-Id: <200608211248.k7LCm6Gj036510@www.freebsd.org> Date: Mon, 21 Aug 2006 12:48:06 GMT From: Alexander Shkurko To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-2.3 Cc: Subject: kern/102344: Some packets do not pass through network interface X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Aug 2006 12:50:16 -0000 >Number: 102344 >Category: kern >Synopsis: Some packets do not pass through network interface >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Aug 21 12:50:14 GMT 2006 >Closed-Date: >Last-Modified: >Originator: Alexander Shkurko >Release: FreeBSD 6.1 >Organization: >Environment: testfree# uname -a testfree# uname -a FreeBSD testfree.trade.dom 6.1-RELEASE FreeBSD 6.1-RELEASE #0: Mon Aug 21 15:11:29 EEST 2006 andrew@testfree.trade.dom:/usr/src/sys/i386/compile/black i386 >Description: Packets of some size do not pass through network interface. After some experiment's i found size of ICMP packet's that do not pass. Size of payload, range 1473 bytes - 1479 bytes 2953 bytes - 2959 bytes 4433 bytes - 4439 bytes 5913 bytes - 5919 bytes So, we have formula of size of problem payloads: 1473+x*1480 - 1479+x*1480, where x=1,2,3,4,5,6... I have kernel: testfree# diff -u /usr/src/sys/i386/conf/GENERIC /usr/src/sys/i386/conf/black --- /usr/src/sys/i386/conf/GENERIC Mon May 1 03:15:12 2006 +++ /usr/src/sys/i386/conf/black Mon Aug 21 14:52:37 2006 @@ -279,3 +279,6 @@ device firewire # FireWire bus code device sbp # SCSI over FireWire (Requires scbus and da) device fwe # Ethernet over FireWire (non-standard!) + +options IPFILTER >How-To-Repeat: Add to "generic" kernel support of IPFILTER,install this kernel,reboot, and ping any IP address with payload of 1475 bytes: ping -s 1475 any_ip_address >Fix: Disable support of IPFILTER and problem disappear. >Release-Note: >Audit-Trail: >Unformatted: