08-20-2011, 07:17 PM
| | Re: Latest Google privacy violation
On 8/20/2011 8:37 AM, Objekt wrote:
> On 8/19/2011 01:28, Chris Davies wrote:
>> Objekt<firstname.lastname@example.org> wrote:
>>> So far I can't even change the MAC under Ubuntu, but I may just be
>>> doing it wrong.
>> This approach works for me on my Debian system (I use it to match my
>> wireless card's MAC to that of the wired MAC, so that either interface
>> can receive the same sticky IP address from the corporate DHCP server):
>> ifconfig eth0 hw ether 00:12:34:56:78:9a
>> I can change the MAC address on both the wired and wireless adapters,
>> so if you're using the same sort of approach then it suggests to me that
>> it's the card refusing to accept the change request.
>> lspci | egrep -i 'ethernet|network'
>> 09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5752
>> Gigabit Ethernet PCI Express (rev 02)
>> 0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG
>> [Golan] Network Connection (rev 02)
> Thanks, I'll have to give that a try.
> I have a netbook with an Atheros wireless NIC that does offer MAC
> address changing, in the Windows XP drivers. The problem is, it doesn't
> work. The adapter will only connect to my router (Netgear WNR3500v2)
> with its original MAC address.
> That is likely due to buggy drivers/incompetence at Atheros. Intel's
> overt feature-removal - and spinning it as a "security feature" - comes
> off as authoritarianism.
> If this turns out to be one of those things that can't be worked around,
> is there another wireless NIC I could buy that does allow MAC address
> I could live with a slower data rate; it doesn't have to be N-wireless.
> For breaking into my router to "steal" Internet access (the primary
> security scenario I want to test), even 54 Mbit is more than fast enough.
This may not help, but should not hurt. Try to power cycle both the PC
and the Router after you change the interface MAC address. It's
possible the two of them are arguing over the change.
I an old router, long gone and model forgotten, that kept track of the
PC name and MAC address and if they did not match what it had in it's
memory it would refuse a new connection. A power reset or reboot would
clear out the cached values in the router allowing the changed MAC to work.
Hopefully your router has not been configured to block all new MAC
address values in it's firewall settings as that may block your changed
MAC value as well.