Re: Re[2]: [LARTC] Fake hardware address

Re: Re[2]: [LARTC] Fake hardware address

[Adi Nugroho]

On Sunday 10 February 2002 10:42, Will Lotto wrote:
> To take a mac address, one needs to wait for a PC to go offline (or
> take a PC offline), then steal the MAC.  ... Stealing the MAC is very
> easy, intel network cards let you SET the MAC in windows (under
> advanced settings) ... in linux, there are programs that can do it,
> which work with most cards.

Yes.... and for Linux, the software is..... IFCONFIG :-(
Just type "ifconfig eth0 hw ether 11:22:33:44:55:66", and it's done.
Too simple :-(

>
> As for protection, I don't believe there is a simple way to
> protect against such an attack ... Encryption? :)

I've done it.
I'm using WEP.
But I'm not sure if WEP are secure enough :-(
I heard, it is possible to break WEP.
So, I block connection using MAC address also.
But now..... it's again very easy to break :-(

Ok, thank you for all reply....
I will learn more about autentification, L2TP and IPSec.

Regards,
Adi Nugroho
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://ds9a.nl/lartc/

[LARTC] Fake hardware address

[Adi Nugroho]

Helo...
I need to ask about hardware address....

As we knew, we can block connection based on Hardware address.
But how if the "thief" using fake hardware address?
Means, he/she change their hardware address mannually?

Is there a way to block it?

Thank you for your help.

Regards,
Adi Nugroho
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://ds9a.nl/lartc/

Re[2]: [LARTC] Fake hardware address

[Will Lotto]

Yes, they do throw up an error.
... Both cards believe the packets are destined for them. ...
basically, they'll fight :)

To take a mac address, one needs to wait for a PC to go offline (or
take a PC offline), then steal the MAC.  ... Stealing the MAC is very
easy, intel network cards let you SET the MAC in windows (under
advanced settings) ... in linux, there are programs that can do it,
which work with most cards.

As for protection, I don't believe there is a simple way to
protect against such an attack ... Encryption? :)


Will

> :
>> > Helo...
>> > I need to ask about hardware address....

> if you have two cards with identical mac addresses on your network, will
> they work together? surely one will get an error?

> _______________________________________________
> LARTC mailing list / LARTC@mailman.ds9a.nl
> http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://ds9a.nl/lartc/


---
"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." -- Benjamin Franklin, 1759

_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://ds9a.nl/lartc/