root@lepto:/home/acontios# ifconfig wlan0 down
root@lepto:/home/acontios# ifconfig wlan0
wlan0: flags=4098<BROADCAST,MULTICAST> mtu 1500
inet 10.23.1.2 netmask 255.255.240.0 broadcast 10.23.15.255
ether XX:XX:XX:XX:cd:eb txqueuelen 1000 (Ethernet)
RX packets 714480 bytes 852576448 (852.5 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 398048 bytes 264519305 (264.5 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
root@lepto:/home/acontios# ifconfig wlan0 hw ether XX:XX:XX:XX:cd:66
root@lepto:/home/acontios# ifconfig wlan0
wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::XXXX58:59e4 prefixlen 64 scopeid 0x20<link>
ether XX:XX:XX:XX:cd:66 txqueuelen 1000 (Ethernet)
RX packets 714484 bytes 852577280 (852.5 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 398051 bytes 264520137 (264.5 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
root@lepto:/home/acontios# ifconfig wlan0
wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.23.5.67 netmask 255.255.240.0 broadcast 10.23.15.255
inet6 fe80::xxxxx:59e4 prefixlen 64 scopeid 0x20<link>
ether XX:XX:XX:XX:cd:66 txqueuelen 1000 (Ethernet)
RX packets 714537 bytes 852604996 (852.6 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 398105 bytes 264528554 (264.5 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
.... et tada !