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Virtual MAC address

Hi Everyone,
Is it possible to put TWO mac address for a NIC interface so that one address behave as a virtaul mac address.? As I can change the MAC address by arp spoofing/MAC spoofing but when i will get arp reply it will not accepted because that MAC address is not actually bind so it will discarded. But If I want to work with that virtual MAC address. what I have to do ?


plz give some suggestion and guidance.
Feb 23 '07 #1
12 28939
sicarie
4,677 Expert Mod 4TB
Hi Everyone,
Is it possible to put TWO mac address for a NIC interface so that one address behave as a virtaul mac address.? As I can change the MAC address by arp spoofing/MAC spoofing but when i will get arp reply it will not accepted because that MAC address is not actually bind so it will discarded. But If I want to work with that virtual MAC address. what I have to do ?


plz give some suggestion and guidance.
What OS are you using?
Feb 23 '07 #2
Motoma
3,237 Expert 2GB
Hi Everyone,
Is it possible to put TWO mac address for a NIC interface so that one address behave as a virtaul mac address.? As I can change the MAC address by arp spoofing/MAC spoofing but when i will get arp reply it will not accepted because that MAC address is not actually bind so it will discarded. But If I want to work with that virtual MAC address. what I have to do ?


plz give some suggestion and guidance.
In both Windows and Linux you can change the MAC address that your network adapter uses. Is this what you want to do, or are you trying to get your machine to have two MAC addresses at once?
Feb 23 '07 #3
sicarie
4,677 Expert Mod 4TB
In both Windows and Linux you can change the MAC address that your network adapter uses. Is this what you want to do, or are you trying to get your machine to have two MAC addresses at once?
I did not know it was possible in Windows (I knew it was possible with Linux), I'm going to have to look into it.
Feb 23 '07 #4
Motoma
3,237 Expert 2GB
I did not know it was possible in Windows (I knew it was possible with Linux), I'm going to have to look into it.
Yup, possible in both. I'll post how, but I'm not sure this is what the OP is looking for.
Feb 23 '07 #5
Cyberdyne
627 Expert 512MB
I use a dual network card made by intel, you can simply get an extra nic and not worry about working with a virtual mac. It is possible to change your mac for sure, I have done this, you can even clone mac addresses both on the nic and in the router. As far as making a virtual one without the actual nic present I would say its theoretically possible, but you will have to fool your windows and possibly bios that there is one in an assigned irq. If somebody find any info on this, please post, very interesting question.

Cyber.
Feb 23 '07 #6
Motoma
3,237 Expert 2GB
I use a dual network card made by intel, you can simply get an extra nic and not worry about working with a virtual mac. It is possible to change your mac for sure, I have done this, you can even clone mac addresses both on the nic and in the router. As far as making a virtual one without the actual nic present I would say its theoretically possible, but you will have to fool your windows and possibly bios that there is one in an assigned irq. If somebody find any info on this, please post, very interesting question.

Cyber.
Well, you can make a NIC card act in promiscuous mode, and spoof MAC headers. Doing these two things in conjunction would effectively be equal to a "virtual MAC address."
Feb 23 '07 #7
What OS are you using?
Hi,
Thanks for ur reply,I am using Linux(2.6.13 kernel version).plz give some links related to it if u know.
Thanks.
Feb 24 '07 #8
In both Windows and Linux you can change the MAC address that your network adapter uses. Is this what you want to do, or are you trying to get your machine to have two MAC addresses at once?

Concept is like that , I am trying to implement a logic that machine have two MAC address at once ,from this one will behave as VIRTUAL.


my aim is :- when I will send a tcp/ip packet it will go with the original MAC address as source MAC address . IN case of arp :-for arp reply, virtual MAC address should be in use . at this point this virtual mac address should come into picture.

could u plz tell me is it possible to bind to MAC address for one NIC ? (what i have gone through from net and other books I think it is not possible) .
so that one can act as virtual. and fr DLL layer transforamtion i want to use that(arp purpose).If u have any suggestion plz tell me.
Thanks.........
Feb 24 '07 #9
In both Windows and Linux you can change the MAC address that your network adapter uses. Is this what you want to do, or are you trying to get your machine to have two MAC addresses at once?
OPERTAING SYSTEM IS LINUX(kernel version is 2.6.13)
Feb 24 '07 #10
Yup, possible in both. I'll post how, but I'm not sure this is what the OP is looking for.
Hi , Much thanks fr ur reply
I am loking fr LINUX operating system
Feb 24 '07 #11
Motoma
3,237 Expert 2GB
Hi , Much thanks fr ur reply
I am loking fr LINUX operating system
Expand|Select|Wrap|Line Numbers
  1. ifconfig wlan0 down
  2. ifconfig wlan0 ether 93:34:23:44:33:33
  3. ifconfig wlan0 up
  4.  
Replace wlan0 with your network card.
You will need to be root to do this.
Pay attention to the warnings and stipulations I make in this thread.
Feb 24 '07 #12
Well, you can make a NIC card act in promiscuous mode, and spoof MAC headers. Doing these two things in conjunction would effectively be equal to a "virtual MAC address."

Hi
could u plz explain me in detail how to do with spoofing of MAC header(virtual MAC address), I tried but i didn't get any solution .


Thanks....
Mar 3 '07 #13

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