From owner-freebsd-net@FreeBSD.ORG Tue May 4 05:22:48 2004 Return-Path: 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 570B016A4CF; Tue, 4 May 2004 05:22:48 -0700 (PDT) Received: from shadow.wixb.com (shadow.wixb.com [65.43.82.173]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7CDDB43D1D; Tue, 4 May 2004 05:22:47 -0700 (PDT) (envelope-from jbronson@wixb.com) Received: from dakota.wixb.com (shadow.wixb.com [10.43.82.173]) i44CMkdX000932; Tue, 4 May 2004 07:22:46 -0500 (CDT) Message-Id: <6.1.0.6.2.20040504071343.024331b8@localhost> Date: Tue, 04 May 2004 07:23:09 -0500 To: freebsd-net@freebsd.org From: "J.D. Bronson" Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Scanned-By: MIMEDefang 2.42 cc: freebsd-questions@freebsd.org Subject: arp issues...but WHY X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 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, 04 May 2004 12:22:48 -0000 I have a FreeBSD 5.2.1 machine that has dual NICs. I would expect the following behavior if I placed both NICs on the same subnet (192.168.1.1 and 192.168.1.2 for example)... But in this case they are totally unique: NIC #1 - 10.10.10.1 255.255.255.0 NIC #2 - 192.168.10.1 255.255.255.0 Default gateway: 10.10.10.10 I am using a single SWITCH for all of my connections. most of my LAN is on the '10' block, but I have a few machines and 1 router that are on the '192' block. When I telnet into the freebsd machine from the '10.10.10.5' to the '10' block I see ARP comments on the console that I dont understand: arp: 10.10.10.5 is on fxp0 but got reply from 00:10:7b:80:04:40 on fxp1 How is this possible? - the laptop has NO IP on the 192 block at all. I understand how to shut up these errors using 'sysctl' - but I wanted to know why I am seeing them in the first place? -JDB