From owner-freebsd-questions Thu Feb 19 15:39:01 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id PAA17982 for freebsd-questions-outgoing; Thu, 19 Feb 1998 15:39:01 -0800 (PST) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from gdi.uoregon.edu (gdi.uoregon.edu [128.223.170.30]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id PAA17871 for ; Thu, 19 Feb 1998 15:38:43 -0800 (PST) (envelope-from dwhite@gdi.uoregon.edu) Received: from localhost (dwhite@localhost) by gdi.uoregon.edu (8.8.7/8.8.8) with SMTP id PAA00759; Thu, 19 Feb 1998 15:38:01 -0800 (PST) (envelope-from dwhite@gdi.uoregon.edu) Date: Thu, 19 Feb 1998 15:38:01 -0800 (PST) From: Doug White Reply-To: Doug White To: Norman C Rice cc: Nadav Eiron , jgrosch@superior.mooseriver.com, questions@FreeBSD.ORG Subject: Re: hostid equals Ethernet address or IP address ? In-Reply-To: <19980219095703.59598@emu.sourcee.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 19 Feb 1998, Norman C Rice wrote: > I find it hard to believe that NIC manufacturers would allow end users > to freely change the MACs, especially the OUI portion. There would be no > guarantee of uniqueness and I am sure that a new sport, ``MAC spoofing'', > would soon be taken up by the crackers. There are cases where two NICs on the same net had the same MAC. Allowing reprogramming saves the company from having to swap NICs. This is esp. true on large extended LANs that use bridges rather than routers. It may not be much of an issue today tho since bridges aren't in wide a use as they once were. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message