From owner-freebsd-net@FreeBSD.ORG Wed Jul 5 17:09:33 2006 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 E120216A4E2 for ; Wed, 5 Jul 2006 17:09:33 +0000 (UTC) (envelope-from vladgalu@gmail.com) Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.186]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4D07543D49 for ; Wed, 5 Jul 2006 17:09:32 +0000 (GMT) (envelope-from vladgalu@gmail.com) Received: by nf-out-0910.google.com with SMTP id x37so1636166nfc for ; Wed, 05 Jul 2006 10:09:31 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=EFzV3BxVXnTtbKiUJa0rk7kPkg+Kv/efjYIcA8gNuD82C5uJcKPWOqEGa7QAJNuWrko+6/45lEzCfbjqYiJbACCoScyzPtdq+LAYTF/Cr9fP8EPUgUAInXLBMsxQ/IFR2j8vAeCcKxradpwTRvIL9ZfUFZSN7nA6RMLRHJml26g= Received: by 10.48.243.16 with SMTP id q16mr4076819nfh; Wed, 05 Jul 2006 10:09:31 -0700 (PDT) Received: by 10.48.250.2 with HTTP; Wed, 5 Jul 2006 10:09:31 -0700 (PDT) Message-ID: <79722fad0607051009r4cd6a23bh8923b4aa844c6e40@mail.gmail.com> Date: Wed, 5 Jul 2006 20:09:31 +0300 From: "Vlad GALU" To: freebsd-net@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Subject: bpf seeing non-local traffic on lo0 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, 05 Jul 2006 17:09:34 -0000 I was debugging a dspam->clamav connection and I saw two packets which didn't belong to the loopback interface. The destination IP was assigned to one of the physical interfaces, and the source IP was somewhere on the internet. I've no idea how to reproduce it. -- If it's there, and you can see it, it's real. If it's not there, and you can see it, it's virtual. If it's there, and you can't see it, it's transparent. If it's not there, and you can't see it, you erased it.