From owner-freebsd-net@FreeBSD.ORG Wed Nov 2 06:57:06 2005 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 B61BD16A41F for ; Wed, 2 Nov 2005 06:57:06 +0000 (GMT) (envelope-from h.nieser@xs4all.nl) Received: from smtp-vbr9.xs4all.nl (smtp-vbr9.xs4all.nl [194.109.24.29]) by mx1.FreeBSD.org (Postfix) with ESMTP id 10EFA43D46 for ; Wed, 2 Nov 2005 06:57:05 +0000 (GMT) (envelope-from h.nieser@xs4all.nl) Received: from [192.168.1.10] (nieser.net [194.109.160.131]) by smtp-vbr9.xs4all.nl (8.13.3/8.13.3) with ESMTP id jA26v4eO040269 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 2 Nov 2005 07:57:04 +0100 (CET) (envelope-from h.nieser@xs4all.nl) Message-ID: <43686340.2070703@xs4all.nl> Date: Wed, 02 Nov 2005 07:57:04 +0100 From: Hans Nieser User-Agent: Mozilla Thunderbird 1.0.7 (X11/20051029) X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-net@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by XS4ALL Virus Scanner Subject: Certain hosts not (always) pingable 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: Wed, 02 Nov 2005 06:57:07 -0000 Hello list, Earlier tonight I installed 5.4-RELEASE on a machine (fileserver) that has a "3Com 3c905C-TX Fast Etherlink XL" integrated on the motherboard. I am experiencing however a rather weird issue; after a while, I lose connectivity with certain hosts on my LAN. When (right after boot) I start pinging some hosts on my LAN, all looks fine for the first few minutes, but the longer I wait, the more hosts become 'unpingable'. Doing "arp -d -a" immediately fixes the problem, then after a few minutes it starts all over again. Also, the order of which hosts become unpingable seems to be the same. (gateway, elmar, aphax are usually the first three.) This problem occurs only on this specific machine and the fact that it does not occur with a linux live-cd has led me to suspect that this is something specific to FreeBSD. But just in-case, I have tried swapping around UTP cables and using different ports on my switch, with no luck. My home network has the following layout: 2nd floor switch (8 port 100/10mbit switch): - My desktop computer aphax.nieser.local 192.168.1.10 - My fileserver fileserver.nieser.local 192.168.1.5 - Uplink to 1st floor switch 1st floor switch (4 port 100/10mbit switch): - ADSL modem (NAT) gateway.nieser.local 192.168.1.1 - Uplink to 1st floor hub (1st floor switch is actually integrated into ADSL modem) 1st floor hub (8 port 100/10mbit hub): - My server royen.nieser.local 192.168.1.3 - Mom's computer beneden.nieser.local 192.168.1.x (dhcp) - Uplink to wifi-AP wifi-AP: wifi.nieser.local 192.168.1.2 - Bro's computer elmar.nieser.local 192.168.1.11 - Laptop aphax-laptop.nieser.l.. 192.168.1.x (dhcp) Relevant dmesg/ifconfig output: xl0: <3Com 3c905C-TX Fast Etherlink XL> port 0xb000-0xb07f mem 0xfb000000-0xfb00007f irq 20 at device 0.0 on pci2 miibus0: on xl0 ukphy0: on miibus0 ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto xl0: Ethernet address: 00:0a:48:0f:40:c7 xl0: flags=8843 mtu 1500 options=9 inet 192.168.1.5 netmask 0xffffff00 broadcast 192.168.1.255 inet6 fe80::20a:48ff:fe0f:40c7%xl0 prefixlen 64 scopeid 0x1 ether 00:0a:48:0f:40:c7 media: Ethernet autoselect (100baseTX ) status: active I haven't been able to find anything on google about this, can anyone help? I could probably save myself the trouble by spending a few euros on a real NIC, but I just can't stand problems I can't get solved... maybe it really is some kind of bug in the xl driver. If more info is needed, please let me know