demo network port that is not bound mac
Big mac computer bound
Large computer access authentication system: http: //1.1.1.2
Large computer mac: 6C-4B-90-3C-D5-7B
The mac demo board is changed to a large computer mac
ifconfig eth0 down
ifconfig eth0 hw ether 6C:4B:90:3C:D5:7B
ifconfig eth0 up
dhclient
ping baidu.com
Back to demo board mac
ifconfig eth0 down
ifconfig eth0 hw ether 00:0a:35:00:01:26
ifconfig eth0 up
dhclient
ping baidu.com