请看例子

$ cat /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0

BOOTPROTO=static

BROADCAST=192.168.19.255

IPADDR=192.168.19.155

NETMASK=255.255.252.0

NETWORK=192.168.19.0

ONBOOT=yes

$ cat /etc/sysconfig/network-scripts/ifcfg-eth0:1

DEVICE=eth0:1

BOOTPROTO=static

BROADCAST=192.168.19.255

IPADDR=192.168.19.182

NETMASK=255.255.252.0

NETWORK=192.168.19.0

ONBOOT=yes

 

执行ifup ifcfg-eth0:1 即可。