ifconfig eth0(или какой там у тебя интерфейс) hw ether 00:00:00:00:00:00 (свой мак)
Результат:
huvak@chuvak-laptop:~$ ifconfig eth0 hw ether 1c:bd:b9:d8:18:34
SIOCSIFHWADDR: Операция не позволяется
chuvak@chuvak-laptop:~$
/etc/init.d/networking restart
Результат:
huvak@chuvak-laptop:~$ /etc/init.d/networking restart
* Reconfiguring network interfaces... ifdown: failed to open statefile /var/run/network/ifstate: Permission denied
ifup: failed to open statefile /var/run/network/ifstate: Permission denied
[fail]
И ещё, для размышления:
chuvak@chuvak-laptop:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:a0:d1:ad:5e:bb
inet6 addr: fe80::2a0:d1ff:fead:5ebb/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4622 errors:0 dropped:0 overruns:0 frame:0
TX packets:17 errors:0 dropped:0 overruns:0 carrier:2
collisions:0 txqueuelen:1000
RX bytes:286359 (286.3 KB) TX bytes:4230 (4.2 KB)
Interrupt:32
lo Link encap:Локальная петля (Loopback)
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:28 errors:0 dropped:0 overruns:0 frame:0
TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1936 (1.9 KB) TX bytes:1936 (1.9 KB)
wlan0 Link encap:Ethernet HWaddr 00:1f:3b:2b:1b:95
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)