三步修改mac地址及静态ip地址设置
sudo gedit /etc/network/interfaces
改成：
auto eth0
iface eth0 inet static
hwaddress ether XX:XX:XX:XX:XX:XX #新的mac地址
address xx.xx.xx.xx #ip地址
gateway xx.xx.xx.xx #
netmask xx.xx.xx.xx #
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sudo gedit /etc/resolv.conf
加上DNS
nameserver xx.xx.xx.xx
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sudo /etc/init.d/networking restart
然后即可上网