From owner-freebsd-net@FreeBSD.ORG Fri Oct 23 08:55:47 2009 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E6976106566B for ; Fri, 23 Oct 2009 08:55:47 +0000 (UTC) (envelope-from ml@netfence.it) Received: from cp-out9.libero.it (cp-out9.libero.it [212.52.84.109]) by mx1.freebsd.org (Postfix) with ESMTP id 5B9FA8FC0C for ; Fri, 23 Oct 2009 08:55:47 +0000 (UTC) Received: from soth.ventu (151.51.39.192) by cp-out9.libero.it (8.5.107) id 4AD8BB2600C92F8C for freebsd-net@freebsd.org; Fri, 23 Oct 2009 10:55:45 +0200 Received: from alamar.ventu (alamar.ventu [10.1.2.18]) by soth.ventu (8.14.3/8.14.2) with ESMTP id n9N8tiHS030119 for ; Fri, 23 Oct 2009 10:55:45 +0200 (CEST) (envelope-from ml@netfence.it) Message-ID: <4AE16F90.4010405@netfence.it> Date: Fri, 23 Oct 2009 10:55:44 +0200 From: Andrea Venturoli User-Agent: Thunderbird 2.0.0.23 (X11/20090828) MIME-Version: 1.0 To: freebsd-net@freebsd.org Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Subject: Wi-Fi bridge interferes with CARP 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: Fri, 23 Oct 2009 08:55:48 -0000 Hello. I'm curios about something which happened during a test in one of my networks. Two FreeBSD 6.3 boxes (one i386, one amd64) share some IP through CARP. Now, as soon as I plugged a wi-fi bridging access point on the net (which took it's IP from DHCP only for management), I started to see this in the i386 box's logs: Oct 22 09:49:04 xxxxx kernel: arp_rtrequest: bad gateway 192.168.101.10 (!AF_LINK) Oct 22 09:49:04 xxxxx kernel: carp0: MASTER -> BACKUP (more frequent advertisement received) Oct 22 09:49:07 xxxxx kernel: arp_rtrequest: bad gateway 192.168.101.10 (!AF_LINK) Oct 22 09:49:07 xxxxx kernel: carp0: MASTER -> BACKUP (more frequent advertisement received) ... and so on every 3 seconds. The above IP is the one the two machines are sharing on the local network. Nothing like that appeared on the amd64 box. Only one Windows machine was (sometimes) using the access point. Did anyone experience such a thing? Any clue? bye & Thanks av.