From owner-freebsd-virtualization@FreeBSD.ORG Mon Nov 4 08:23:26 2013 Return-Path: Delivered-To: freebsd-virtualization@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id EC647E36; Mon, 4 Nov 2013 08:23:26 +0000 (UTC) (envelope-from aryeh.friedman@gmail.com) Received: from mail-pd0-x236.google.com (mail-pd0-x236.google.com [IPv6:2607:f8b0:400e:c02::236]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id C3E5123AA; Mon, 4 Nov 2013 08:23:26 +0000 (UTC) Received: by mail-pd0-f182.google.com with SMTP id q10so6394606pdj.41 for ; Mon, 04 Nov 2013 00:23:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=OmI1y5AuhUXeb4WFn5zQ65G6twwfjZUFRAyDPuUO0uE=; b=YAByOYrTx9przQitNJXwJyCjyhv36HHLKeDP1V3/n5G7HwQrlE+YxNmnfg9vGOaCDu dPu+vnPlwQ3mmjs0ugQBTiQWz7s6QKFpWct4FGzrpVFv8LzwA+xuSSSg81c0+8ZKuvSQ mjkgsVeOLAlbTZTmWOkt5jHjPMtZWGtkmMnB9rTDrzdUSIVWwX69yfEBG7VgwFJ+g+pB jrY4ndeVgVZKy8SO3t73KRjZQJIZW3CIQg8paWML6TgGxIfFUDNDr/y/DJi5aGw1wTlX bZ0pSCh/BZ+K3p/qktMhKUf7TIdPijvS0FCT8UySWMeq3jpunTstDn4y6umxkpVeKN87 f1iA== MIME-Version: 1.0 X-Received: by 10.66.67.6 with SMTP id j6mr457004pat.165.1383553402354; Mon, 04 Nov 2013 00:23:22 -0800 (PST) Received: by 10.68.185.130 with HTTP; Mon, 4 Nov 2013 00:23:22 -0800 (PST) Date: Mon, 4 Nov 2013 03:23:22 -0500 Message-ID: Subject: how is the MAC for tap(4) computed? From: Aryeh Friedman To: "freebsd-virtualization@freebsd.org" , FreeBSD Stable List Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Nov 2013 08:23:27 -0000 There seems to be a very high rate of MAC address collisions when tap is running on different machines.... is there anyway to make the selection of MAC more random