From owner-freebsd-hackers Fri May 14 12:19: 9 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from pcnet1.pcnet.com (pcnet1.pcnet.com [204.213.232.3]) by hub.freebsd.org (Postfix) with ESMTP id 5DA8614E18 for ; Fri, 14 May 1999 12:19:08 -0700 (PDT) (envelope-from eischen@vigrid.com) Received: (from eischen@localhost) by pcnet1.pcnet.com (8.8.7/PCNet) id PAA01313; Fri, 14 May 1999 15:18:21 -0400 (EDT) Date: Fri, 14 May 1999 15:18:21 -0400 (EDT) From: Daniel Eischen Message-Id: <199905141918.PAA01313@pcnet1.pcnet.com> To: Steve.Gailey@db.com, nate@mt.sri.com Subject: Re: ifconfig: changing mac address Cc: freebsd-hackers@FreeBSD.ORG Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > Is it possible to change the mac address of an ethernet card using > > ifconfig? > > Not in any 'standard' card, no. Some cards (in SUN workstations) allow > you to swap the EEPROM with the mac address, and I'll bet somewhere > someone has designed a card with a programmable mac address, but > normally it's not settable. Yeah, we've got some Dy-4 m68k-based single board computers that allow the lower 3 bytes of the MAC address to be programmed. It's kind of annoying though, because the lower 3 bytes are always set to 0 and we have to uniquely set them for each board that we deliver to our customer. The MAC addresses were meant to be unique; why do you want the ability to change them? So you can make M$ viruses without anyone figuring it out who made them ;-)? Dan Eischen eischen@vigrid.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message