root@x# modprobe dummy
root@x# ifconfig dummy0 hw ether 01:02:03:04:05:06
root@x# ifconfig dummy0
dummy0 Link encap:Ethernet HWaddr 01:02:03:04:05:06
BROADCAST NOARP 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:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
root@x# ifconfig dummy0 up
root@x# ifconfig dummy0
dummy0 Link encap:Ethernet HWaddr 01:02:03:04:05:06
inet6 addr: fe80::302:3ff:fe04:506/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:70 (70.0 b)