进入网卡:vi /etc/sysconfig/betwork-scripts/ifcfg-eth0
找到:HWADDR......(网卡的MAC地址) 删除
UUID......(网卡标识) 删除
再进入cp /etc/udev/rules.d/70-persistent-net.rules /etc/udev/rules.d/70-persistet-net.rulesqq 备份
m -r /etc/udev/rules.d/70-persistent-net.rules 删除
重启系统(shutdown -r now或init 6、reboot)即可