1,查看网卡信息,获得eth编号和MAC地址

# dmesg | grep eth

e1000 0000:02:00.0:eth0:(PCI:66MHz:32-bit) 00:50:56:8d:20:82

e1000 0000:02:00.0:eth0:Inter(R) PRO/1000 Network Connection

udev: renamed network interface eth0 to eth1

2,修改网络配置信息

# vi /etc/sysconfig/network-script/ifcfg-eth0

找到HWADDR=00:50:56:8D:20:XX修改为HWADDR=00:50:56:8D:20:82

3,修改网卡固定信息

# vi /etc/udev/rules.d/70-persistent-net.rules

把NAME="eth0"的"ATTR(address)=="mac地址" 修改为正确的MAC地址然后删除NAME="eth1"的这块网卡信息

或者把原本NAME="eth0"网卡信息删掉,然后把NAME="eth1"修改为NAME="eth0"

4,重启

# reboot