From owner-freebsd-net@FreeBSD.ORG Mon Oct 16 10:15:17 2006 Return-Path: X-Original-To: freebsd-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 1DB6316A407; Mon, 16 Oct 2006 10:15:17 +0000 (UTC) (envelope-from jon.otterholm@ide.resurscentrum.se) Received: from mail1.cil.se (mail1.cil.se [217.197.56.125]) by mx1.FreeBSD.org (Postfix) with ESMTP id 60F7643D49; Mon, 16 Oct 2006 10:15:15 +0000 (GMT) (envelope-from jon.otterholm@ide.resurscentrum.se) Received: from [192.168.2.10] ([192.168.2.10]) by mail1.cil.se with Microsoft SMTPSVC(6.0.3790.0); Mon, 16 Oct 2006 12:15:13 +0200 Message-ID: <45335BB1.6050809@ide.resurscentrum.se> Date: Mon, 16 Oct 2006 12:15:13 +0200 From: Jon Otterholm User-Agent: Thunderbird 1.5 (X11/20060204) MIME-Version: 1.0 To: freebsd-net@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 16 Oct 2006 10:15:13.0616 (UTC) FILETIME=[F81C0D00:01C6F10B] Subject: If_bridge behaving as HUB 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: Mon, 16 Oct 2006 10:15:17 -0000 Hi. I have a bridge setup with a number of vlan IF's as members. After a while traffic destined for one member IF are sent to all member IF's. From man if_bridge: A bridge works like a hub, forwarding traffic from one interface to another. Multicast and broadcast packets are always forwarded to all interfaces that are part of the bridge. For unicast traffic, the bridge learns which MAC addresses are associated with which interfaces and will forward the traffic selectively. Has anyone else got this problem? How do I debug this? Info: su-2.05b# uname -a FreeBSD hostname.domain.com 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #2: Fri Sep 15 13:26:01 CEST 2006 user@:/usr/obj/usr/src/sys/GENERIC i386 /Jon