From owner-freebsd-hackers Tue Jan 2 9:47: 4 2001 From owner-freebsd-hackers@FreeBSD.ORG Tue Jan 2 09:47:02 2001 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from tomts6-srv.bellnexxia.net (smtp.bellnexxia.net [209.226.175.26]) by hub.freebsd.org (Postfix) with ESMTP id B3FEF37B400 for ; Tue, 2 Jan 2001 09:47:01 -0800 (PST) Received: from idem.sympatico.ca ([64.229.234.150]) by tomts6-srv.bellnexxia.net (InterMail vM.4.01.03.00 201-229-121) with ESMTP id <20010102174700.ITKU16490.tomts6-srv.bellnexxia.net@idem.sympatico.ca>; Tue, 2 Jan 2001 12:47:00 -0500 Message-Id: <5.0.2.1.0.20010102124838.009efec0@pop6.sympatico.ca> X-Sender: b1gbfv75@pop6.sympatico.ca X-Mailer: QUALCOMM Windows Eudora Version 5.0.2 Date: Tue, 02 Jan 2001 12:49:15 -0500 To: Wes Peters From: =?iso-8859-1?Q?F=E9lix-Antoine?= Paradis Subject: Re: ARP question. Cc: hackers@freebsd.org In-Reply-To: <3A520604.39F63679@softweyr.com> References: <5.0.2.1.0.20010102023010.00a101f0@pop6.sympatico.ca> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1"; format=flowed Content-Transfer-Encoding: quoted-printable Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG At 09:47 01-01-02 -0700, you wrote: >F=E9lix-Antoine Paradis wrote: > > > > Hi, > > When we do a "dmesg" on a 4.2-STABLE box, we get: > > > > arp: 200.42.126.18 moved from 00:e0:7d:7b:53:f0 to 00:c0:df:f4:ac:05 on= ed0 > >This means exactly what is says: IP address 200.42.126.18 was originally >associated with ethernet MAC address ...:53:f0, but has moved to ...:ac:05. > > > > and, in ifconfig, it says: > > > > ed0: flags=3D8843 mtu 1500 > > inet 200.42.126.20 netmask 0xffffff00 broadcast 200.42.126.255 > > inet6 fe80::2e0:7dff:fe7b:548a%ed0 prefixlen 64 scopeid 0x1 > > ether 00:e0:7d:7b:54:8a > > > > ed0 is connected to a switch. we want to know what the "arp: " message > > means. on the linux box, we have: > > > > eth0 Link encap:Ethernet HWaddr 00:C0:DF:F4:AC:05 > > inet=20 > addr:200.42.126.18 Bcast:200.42.126.23 Mask:255.255.255.248 > >Yes, this interface is now showing what ARP reported above. > > > eth1 Link encap:Ethernet HWaddr 00:E0:7D:7B:53:F0 > > inet addr:192.168.1.1 Bcast:192.168.1.255 = Mask:255.255.255.0 > >And this one is not. > > > Both eth0 and eth1 are connected to that same switch. > >Did the Linux box reboot when you got the ARP message? If so, the Linux >box has reversed the order of the ethernet interfaces. If not, the Linux >box is routing packets over the wrong interface, which can happen when you >have two networks mingled together like this. What kind of switch is this? It is a Catalyst 2900 XL Series >-- > "Where am I, and what am I doing in this handbasket?" > >Wes=20 >Peters Softweyr LLC >wes@softweyr.com=20 >http://softweyr.com/ > > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-hackers" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message