From owner-freebsd-net@FreeBSD.ORG Sun Dec 4 20:01:18 2011 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 490441065670 for ; Sun, 4 Dec 2011 20:01:18 +0000 (UTC) (envelope-from julian@freebsd.org) Received: from vps1.elischer.org (vps1.elischer.org [204.109.63.16]) by mx1.freebsd.org (Postfix) with ESMTP id 1B3DC8FC0C for ; Sun, 4 Dec 2011 20:01:18 +0000 (UTC) Received: from julian-mac.elischer.org (c-67-180-24-15.hsd1.ca.comcast.net [67.180.24.15]) (authenticated bits=0) by vps1.elischer.org (8.14.4/8.14.4) with ESMTP id pB4K1GV1091221 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO); Sun, 4 Dec 2011 12:01:17 -0800 (PST) (envelope-from julian@freebsd.org) Message-ID: <4EDBD19A.70303@freebsd.org> Date: Sun, 04 Dec 2011 12:01:30 -0800 From: Julian Elischer User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-US; rv:1.9.2.24) Gecko/20111103 Thunderbird/3.1.16 MIME-Version: 1.0 To: Adrian Chadd References: <307826129.20111204065221@nitronet.pl> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Pawel Tyll , freebsd-net@freebsd.org Subject: Re: VLAN and LLADDR. 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: Sun, 04 Dec 2011 20:01:18 -0000 On 12/3/11 11:30 PM, Adrian Chadd wrote: > On 4 December 2011 13:52, Pawel Tyll wrote: >> Hi list, >> >> Having a different MAC address on vlan interface and parent interface >> requires enabling promiscuous mode. Is this a bug, or is it working as >> intended? Will leaving promiscuous mode enabled indefinitely hurt >> performance on gigabit em interface? > Hm, that's an interesting issue. How about writing a PR about it? > > You may find some hardware lets you program in a unicast filter or a > set of local mac addresses, instead of a single station address. > (I know I can do this with my atheros wifi nics, for example.) In these days of ethernet switches.. you already have mac address filters on the switch so the downside of not having one on the NIC is smaller than it used to be. The days of pure broadcast networks (e.g. 10Mb coax networks) are pretty much gone. (except in the wireless world). > > Adrian > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" > >