Date: Mon, 11 Dec 2000 10:26:20 -0500 From: "Will Mitayai Keeso Rowe" <mitayai@mitayai.net> To: "David Erickson" <erickson@mddsg.com>, "Jeff Fulton" <jefff@fulton.net.au>, "Will Mitayai Keeso Rowe" <mitayai@dreaming.org> Cc: <freebsd-security@FreeBSD.ORG> Subject: RE: MAC Address Message-ID: <NEBBIEGPMLMKDBMMICFNIEJFDKAA.mitayai@mitayai.net> In-Reply-To: <001801c06334$3bcfd7a0$cc02a8c0@columbia.mentis.org>
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try turning off your cable modem for 10 minutes while you switch machines. Perhaps the lease just has to timeout/expire. -----Original Message----- From: owner-freebsd-security@FreeBSD.ORG [mailto:owner-freebsd-security@FreeBSD.ORG]On Behalf Of David Erickson Sent: December 11, 2000 00:36 AM To: Jeff Fulton; Will Mitayai Keeso Rowe Cc: freebsd-security@FreeBSD.ORG Subject: Re: MAC Address Exactly My cablemodem can be moved to another machine by reseting it. But once communication has started with that MAC address it will not listen. Implementing VRRP wont do what I want because it still see the MAC address of the primary machines nic not the vrrp mac address. But Im trying to put in place a little redundancy and the only way I can come up with is by monitoring on a seperate ethernet crossover between machines and when it stops responding to traffic over that link then I would assume the other machines MAC address. Similar to VRRP with the VRRP mac address being shared between multiple machines but only one machine using it at a time as the gateway. Dave ----- Original Message ----- From: "Jeff Fulton" <jefff@fulton.net.au> To: "Will Mitayai Keeso Rowe" <mitayai@dreaming.org>; "David Erickson" <erickson@mddsg.com> Cc: <freebsd-security@FreeBSD.ORG> Sent: Sunday, December 10, 2000 11:27 PM Subject: Re: MAC Address > Maybe to masquerade as another address to fool a dhcp server or even a > license server. > Some of the cable networks register your mac address and won't allow you to > connect from a different address, unless you call them up and ask to get it > changed. > There have also been a few nasty manufacturing events over the years when a > whole batch of cards got sent out all with identical mac addresses. > > Regards, > Jeff Fulton > > > ----- Original Message ----- > From: "Will Mitayai Keeso Rowe" <mitayai@dreaming.org> > To: "David Erickson" <erickson@mddsg.com> > Cc: <freebsd-security@FreeBSD.ORG> > Sent: Monday, December 11, 2000 3:08 PM > Subject: Re: MAC Address > > > > Dave, > > > > I'm sure you could work it out, but i'm curious as why you would want > > to do this? A MAC address provides a necessary function in it's sequences > > of set prefixes and it's sequence of unique suffixes. > > > > -Mit > > > > > > --- > > Will Mitayai Keeso Rowe > > Toronto, Ontario, Canada > > mitayai@dreaming.org > > > > On Sun, 10 Dec 2000, David Erickson wrote: > > > > > Is it possible to change the MAC address on a NIC through ifconfig or > any > > > other means or do I have to get a specific NIC that supports this > > > functionality? > > > > > > Dave Erickson > > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > with "unsubscribe freebsd-security" in the body of the message > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-security" in the body of the message > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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