centos增加虚拟网卡

Centos系统添加多个IP，把新的IP添加绑定到网卡 
vi /etc/sysconfig/network-scripts/ifcfg-eth0:1
DEVICE=eth0:1
ONBOOT=yes
BOOTPROTO=static
IPADDR=新增IP
NETMASK=子网掩码
GATEWAY=网关地址
最后

service network restart

或者systemctl restart network