From owner-freebsd-net@FreeBSD.ORG Tue Aug 14 06:56:06 2007 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 D2D3D16A418 for ; Tue, 14 Aug 2007 06:56:06 +0000 (UTC) (envelope-from ldacol@gmail.com) Received: from wa-out-1112.google.com (wa-out-1112.google.com [209.85.146.177]) by mx1.freebsd.org (Postfix) with ESMTP id A685213C457 for ; Tue, 14 Aug 2007 06:56:06 +0000 (UTC) (envelope-from ldacol@gmail.com) Received: by wa-out-1112.google.com with SMTP id k17so2244616waf for ; Mon, 13 Aug 2007 23:56:06 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type; b=Qc9cD8LYbU9TAA3s6IbolzjZtXtNaRZLfSEAMW0uYDcWp7NQUuuJui9wDrKHPN4Zih+TvN5NMVcKeFsRpQAucoJxiuis2dyUIDZ12f+e/qa3PTeZVpKAkEFpfxMqZ0Wws96XircbHdf0az5Yd4FBDpnO62jwaTrZLFetMgTMV4U= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type; b=gyGJY+CX0WPikUhAlDmTBuQsuLbbKndfCu2IJsDgGOZZO/8JczVPX+ZmsQQitw2FL7yS1O9DnSkgdOZHtSzU5/KO+IjgFrjB0ANQ4og5T9ANRiXl1u/T0xwBJM105J9z8ob8HUyluX6GZyK3xINQYHlj/sV61gPC4OApbraXCWc= Received: by 10.115.93.16 with SMTP id v16mr2224558wal.1187072919799; Mon, 13 Aug 2007 23:28:39 -0700 (PDT) Received: by 10.114.174.8 with HTTP; Mon, 13 Aug 2007 23:28:39 -0700 (PDT) Message-ID: Date: Tue, 14 Aug 2007 08:28:39 +0200 From: "Luca Da Col" To: freebsd-net@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Unexpected behaviors connectivity FreeBSD 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: Tue, 14 Aug 2007 06:56:06 -0000 We have a FreeBSD 6.2 System connected to our DMZ used to store periodical informations about our network. FreeBSD is showing some unexpected behaviors loosing connectivity with other boxes in the network. Problem is completely aleatory and can affect any box. However rest of boxes are completely reachables from FreeBSD while specific server is affected. Deleting ARP entry in FreeBSD box solves the problem as you can see from the following lines. Problem is showing quite frequently during the day. Any hint about this issue? Thank you, Best regards, Luca Da Col [root@srv001 /Scripts]# [root@srv001 /Scripts]# ping SWI002-DMZ PING SWI002-DMZ (10.192.149.45): 56 data bytes ^C --- SWI002-DMZ ping statistics --- 20 packets transmitted, 0 packets received, 100% packet loss [root@srv001 /Scripts]# [root@srv001 /Scripts]# [root@srv001 /Scripts]# arp -a ? (10.192.149.9) at 08:00:20:f2:cf:da on dc0 [ethernet] ? (10.192.149.33) at 00:07:ec:50:e4:08 on dc0 [ethernet] ? (10.192.149.44) at 00:0a:b7:8d:0b:00 on dc0 [ethernet] ? (10.192.149.45) at 00:07:85:a5:20:40 on dc0 [ethernet] [root@srv001 /Scripts]# [root@srv001 /Scripts]# [root@srv001 /Scripts]# arp -d 10.192.149.45 10.192.149.45 (10.192.149.45) deleted [root@srv001 /Scripts]# [root@srv001 /Scripts]# [root@srv001 /Scripts]# [root@srv001 /Scripts]# ping SWI002-DMZ PING SWI002-DMZ (10.192.149.45): 56 data bytes 64 bytes from 10.192.149.45: icmp_seq=0 ttl=255 time=1.261 ms 64 bytes from 10.192.149.45: icmp_seq=1 ttl=255 time=1.196 ms 64 bytes from 10.192.149.45: icmp_seq=2 ttl=255 time=1.092 ms 64 bytes from 10.192.149.45: icmp_seq=3 ttl=255 time=1.093 ms ^C --- SWI002-DMZ ping statistics --- 4 packets transmitted, 4 packets received, 0% packet loss round-trip min/avg/max/stddev = 1.092/1.160/1.261/0.072 ms [root@srv001 /Scripts]# [root@srv001 /Scripts]# [root@srv001 /Scripts]# [root@srv001 /Scripts]# arp -a ? (10.192.149.9) at 08:00:20:f2:cf:da on dc0 [ethernet] ? (10.192.149.33) at 00:07:ec:50:e4:08 on dc0 [ethernet] ? (10.192.149.44) at 00:0a:b7:8d:0b:00 on dc0 [ethernet] ? (10.192.149.45) at 00:07:85:a5:20:40 on dc0 [ethernet]