Date: Sun, 26 Apr 1998 23:39:13 -0400 (EDT) From: "Matthew N. Dodd" <winter@jurai.net> To: Dag-Erling Coidan =?iso-8859-1?Q?Sm=F8rgrav?= <dag-erli@ifi.uio.no> Cc: Alfred Perlstein <perlsta@fang.cs.sunyit.edu>, Hans Huebner <hans@artcom.de>, freebsd-hackers@FreeBSD.ORG Subject: Re: FreeBSD HA configuration / Ethernet address takeover Message-ID: <Pine.BSF.3.96.980426233709.21511D-100000@sasami.jurai.net> In-Reply-To: <xzpn2d84kc0.fsf@gnipahellir.ifi.uio.no>
next in thread | previous in thread | raw e-mail | index | archive | help
On 26 Apr 1998, Dag-Erling Coidan [iso-8859-1] Smørgrav wrote: > Yes, but that is not significant, because the Ethernet headers are > constructed in software, so you could in theory tell the link layer > driver to use a different MAC address; but then you'd have to run in > promiscuous mode constantly and sort packets in software, because > there's (generally) no way to tell the NIC to use a different address, > so it'd discard packets bearing your (fake) MAC address as destination > address. I've got an ethernet card here that allows an arbitrary number (well arbitrary to no more than 16) number of MAC addresses. Fairly nifty. I'm kind of puzzled at how this would be integrated with the SIOCGHWADDR/SIOCSHWADDR calls as you might also need a way of determining which hadware address to set/get :) /* Matthew N. Dodd | A memory retaining a love you had for life winter@jurai.net | As cruel as it seems nothing ever seems to http://www.jurai.net/~winter | go right - FLA M 3.1:53 */ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.3.96.980426233709.21511D-100000>