how to change MAC address

cain_eve · 03-21-2005, 06:13 AM

Hi all,

I am wondering how to change the MAC address of my ethernet adaptor(eth0) under Linux. Since the LAN's IP address need register in my college, and I want to use my laptop in Lab. I think the way to do it is to change my MAC to the Lab computer's.

Waiting for your help

Wang zheng

tavixor · 03-21-2005, 06:21 AM

try this http://www.alobbs.com/modules.php?op...acc&file=index
or

Code:

ifconfig [interface name] hw ether [new MAC address]

cain_eve · 03-21-2005, 06:51 AM

thank you and I will try If I have any problem go through it hope you can give some instructions

cain

weirdo1 · 10-28-2005, 04:29 PM

My dear sir,

There are a number of free utilities on the internet that present a way to change your MAC address on the internet. Any competent search on yahoo, google, etc will reveal sources of these utilities. Macshift comes to mind as one title of such a software.

On the alternative, a hardware-based solution that involves burning a new MAC address in the eeprom of your adapter is available, information is at http://www.sdadapters.com

Good luck

Weirdo

JesusFreak84 · 12-07-2005, 02:41 PM

How would these solutions work on a laptop that is dual-booting WinXP and Slackware? I ask because our dorm networks here will not allow a single MAC address to use more than one OS on the system. I.E., since when I registered my computer on campus this year it was with Windows (decided to add Linux a few weeks into term,) the network will not let me on if I try to connect in Linux, since they have my MAC address as a Windows machine.

I understand, I guess, WHY they have it set up like that, but I think this "spoofing" or whatever doesn't violate the INTENT of the policy. (And if ITS decides to give me trouble, which they shouldn't unless they're REALLY bored up there, I'll tell 'em just that.)

Thanks!

KnightHawk · 12-07-2005, 04:40 PM

Quote:

Originally Posted by JesusFreak84

How would these solutions work on a laptop that is dual-booting WinXP and Slackware? I ask because our dorm networks here will not allow a single MAC address to use more than one OS on the system. I.E., since when I registered my computer on campus this year it was with Windows (decided to add Linux a few weeks into term,) the network will not let me on if I try to connect in Linux, since they have my MAC address as a Windows machine.

I understand, I guess, WHY they have it set up like that, but I think this "spoofing" or whatever doesn't violate the INTENT of the policy. (And if ITS decides to give me trouble, which they shouldn't unless they're REALLY bored up there, I'll tell 'em just that.)

Thanks!

Sounds like an odd policy.... any idea how they are enforcing it? With what software?

JesusFreak84 · 12-07-2005, 04:58 PM

Not a clue, but one of my dormmate's boyfriend goes to another college nearby and can alternate the two OSs no problem, but when she tried the same arrangement (set up by him) the Linux couldn't connect.

I think if I even asked how ITS was enforcing the policy, they'd have to kill me.

I think the purpose behind it is to make sure someone ELSE isn't trying to fake my MAC address to do stuff and get me in trouble...if that makes any sense...

Must...return...to...homework....NOOO!!!

weirdo1 · 12-08-2005, 12:06 AM

That policy is no good if it discriminates against linux and computer sci majors generally! Did you try speaking with the sysadmin explaining why you need two registrations? Also, why isn't your MAC address the same in linux as it is in Windows, the MAC is read from the chip on the NIC by both OS'es and should be the same, no?

Weirdo

JesusFreak84 · 12-08-2005, 12:25 AM

It IS the same--I need to "spoof" or somehow convince the network that I'm not the computer I am.

Most CIS majors I know here use Windows or don't live on campus. =-P Not an option for me, since I'm a couple states away.

ITS doesn't budge on jack squat. I used to be a chat operator in an IRC chat on a Catholic server, but IRC ports here are blocked and ITS refused to unblock even just accessing that one server. =-\

Stingerlt · 10-25-2007, 01:50 AM

I was searching for the same thing... :-)

*Linux

To change your MAC address in Linux (and most *nix system) is easy as pie. All it takes is two easy to script commands:

ifconfig eth0 down hw ether 00:00:00:00:00:01

ifconfig eth0 up

Millard_rick · 02-05-2009, 11:54 AM

You are saving our hospital a lot of money because, the vendor of my equipment will not let me just change my nic card, and they would force me to change out the entire host at a cost of ~$20,000.00. All of the options are tied to the mac address and the system would not be usable without these options.

alan_ri · 02-05-2009, 02:52 PM

Quote:

Originally Posted by Millard_rick

You are saving our hospital a lot of money because, the vendor of my equipment will not let me just change my nic card, and they would force me to change out the entire host at a cost of ~$20,000.00. All of the options are tied to the mac address and the system would not be usable without these options.

Wait,wait,wait a moment.I really want to know more about your problem with this vendor.Will you tell me what vendor is that and what's the name of your hospital and where is it?Also,does everything work now the way you think it should,because there are more ways to change mac address and more ways to deal with this vendor.