From owner-freebsd-stable Thu Apr 20 16:55:34 2000 Delivered-To: freebsd-stable@freebsd.org Received: from pi.yip.org (yip.org [199.45.111.121]) by hub.freebsd.org (Postfix) with ESMTP id A584537B78D for ; Thu, 20 Apr 2000 16:55:30 -0700 (PDT) (envelope-from melange@yip.org) Received: from localhost (melange@localhost) by pi.yip.org (8.9.3/8.9.3) with ESMTP id TAA92014; Thu, 20 Apr 2000 19:55:23 -0400 (EDT) (envelope-from melange@yip.org) Date: Thu, 20 Apr 2000 19:55:23 -0400 (EDT) From: Bob K X-Sender: melange@localhost To: "Chad R. Larson" Cc: Ronald van der Pol , freebsd-stable@FreeBSD.ORG Subject: [OT] Re: setting Ethernet address on Ethernet card? In-Reply-To: <200004202311.QAA08703@freeway.dcfinc.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 20 Apr 2000, Chad R. Larson wrote: > As I recall, Ronald van der Pol wrote: > > Is it possible to change the Ethernet address on an Ethernet card? > > It depends on the card. Some can (usually more expensive, high end), > some can't (clones and cheapies). Those that can are usually so as > to be able to support Ethernet multicasting, or High Availablity > failovers and the like. [snip] > > There might be an MS-DOS utility available from the manufacturer, if > the card hardware supports it. Just to give an example of a cheapie clone card that can change its MAC address, the ISA SN2000PCT's MAC addy can be changed by using the DOS utility (but you have to add the /f flag). I *think* it uses the RealTek 8019 chipset, but I can't remember for sure (it's in a win98 box at the moment). As an added bonus, the setup utility will change the MAC address to fe:ff:ff:ff in the event of a MAC address collision. Now before anyone gets excited about it, I wouldn't recommend those cards to anybody. The reason I know of its MAC address changing abilities is because the setup utility incorrectly determined there was a MAC address collision (no other cards in the box, not connected to a network, no I/O or irq conflicts) and changed it. Also, about a year and a half ago, I think the EEPROM started to die so that on reboot the card would no longer be detected; the only thing that would bring it back was powering the machine off and unplugging it for several seconds, then "re-activate" it with the RealTek configuration utility. On the up side, it's completely fine in jumperless (ie, non-PnP) mode. -- Bob "Reality is the only word in the language that should always be used in quotes" - My Life With The Thrill Kill Kult sample To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message