From owner-freebsd-net@FreeBSD.ORG Mon Oct 12 14:41:53 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 C5028106566B for ; Mon, 12 Oct 2009 14:41:53 +0000 (UTC) (envelope-from lab@gta.com) Received: from mailgate.gta.com (mailgate.gta.com [199.120.225.20]) by mx1.freebsd.org (Postfix) with SMTP id 5772C8FC0A for ; Mon, 12 Oct 2009 14:41:53 +0000 (UTC) Received: (qmail 48837 invoked by uid 1000); 12 Oct 2009 14:41:49 -0000 Date: Mon, 12 Oct 2009 10:41:49 -0400 From: Larry Baird To: freebsd-net@freebsd.org Message-ID: <20091012144149.GA39393@gta.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.3i Subject: ARP changes 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, 12 Oct 2009 14:41:53 -0000 I know that arp has changed a lot in FreeBSD 8. I am wondering if one change was by design? In older versions of FreeBSD, if you ping a host that is on a local network but is down, after a few seconds ping displays: ping: sendto: Host is down ping: sendto: Host is down Using arp to display the arp table shows: host.domain (x.x.x.x) at (incomplete) on em0 [ethernet] In FreeBSD 8, the incomplete arp entries don't show up. Ping never prints "Host is down'. The old behaviors can useful when trouble shooting local network problems. Is there a reason for the changes? -- ------------------------------------------------------------------------ Larry Baird | http://www.gta.com Global Technology Associates, Inc. | Orlando, FL Email: lab@gta.com | TEL 407-380-0220, FAX 407-380-6080