how to change mac adress ?

Rommeo · 10-18-2008, 08:48 PM

hi
i was using a laptop before at my school's network. Now i changed my laptop and installed latest version of kubuntu. But the problem is without changing my mac address, i cant use internet. So i changed the mac adress by a command but i dont want to use commands everytime i start the computer. So my question is, What should i do to change the mac adress of the computer automatically ?

i tried to add this line:

Code:

hwadress ether 00:macadress

at : /etc/network/interfaces
Didnt Work..
also tried many lines there but didnt work

Can someone tell me please what line should i add to where to change my mac adress ?

Thanks in advance.

pinniped · 10-18-2008, 11:19 PM

It should just be:
hwaddress ether XX:XX:XX:XX:XX:XX
within your interface stanza

Otherwise you might try a pre-up with:
ifconfig eth0 hw ether XX:XX:XX:XX:XX:XX

Rommeo · 10-19-2008, 04:25 AM

Quote:

Originally Posted by pinniped

It should just be:
hwaddress ether XX:XX:XX:XX:XX:XX
within your interface stanza

Otherwise you might try a pre-up with:
ifconfig eth0 hw ether XX:XX:XX:XX:XX:XX

pinniped i tried that one .. But unfortunately it didnt work.
i wrote

my /etc/network/interfaces file is :

Code:

auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0


iface eth0 inet static
address 10.whatelse
netmask 255.whatelse
gateway 10.whatelse
hwaddress ether 00:whatelse

auto eth0

it does not work.

Where should i write ?

Code:

ifconfig eth0 hw ether XX:XX:XX:XX:XX:XX

Total-MAdMaN · 10-19-2008, 04:54 AM

Can't you just tell the person who runs your school's network your new computer's MAC address?

Rommeo · 10-19-2008, 04:58 AM

Quote:

Originally Posted by Total-MAdMaN

Can't you just tell the person who runs your school's network your new computer's MAC address?

But the problem is, i still have my old laptop and i ll use old and new one.

billymayday · 10-19-2008, 05:20 AM

So you're trying to circumvent the rules?

Rommeo · 10-19-2008, 06:21 AM

Quote:

Originally Posted by billymayday

So you're trying to circumvent the rules?

lets kill all the linux developers that allows us to change mac adress (:

pinniped · 10-19-2008, 06:30 AM

In the interfaces file, just put:

pre-up /sbin/ifconfig eth0 hw ether XX:XX:XX:XX:XX:XX

You can also ignore the ifup/ifdown scripts altogether and just configure everything with ifconfig somewhere in the network startup scripts.

Rommeo · 10-19-2008, 07:25 AM

Quote:

Originally Posted by pinniped

In the interfaces file, just put:

pre-up /sbin/ifconfig eth0 hw ether XX:XX:XX:XX:XX:XX

You can also ignore the ifup/ifdown scripts altogether and just configure everything with ifconfig somewhere in the network startup scripts.

it works !!!
Thank you so much piiniped.

Total-MAdMaN · 10-19-2008, 07:56 AM

Quote:

Originally Posted by Rommeo

But the problem is, i still have my old laptop and i ll use old and new one.

So get the network admin to keep the old and add the new.

billymayday · 10-19-2008, 03:18 PM

Quote:

Originally Posted by Rommeo

lets kill all the linux developers that allows us to change mac adress (:

No, you are the one in the wrong, don't blame the tool maker for the poor tradesman.;