------KVM IP模版
NAME="eth0"
NETBOOT=yes
IPV6INIT=no
BOOTPROTO=dhcp
TYPE=Ethernet
IPV4_FAILURE_FATAL=yes
NM_CONTROLLED="no"
------IP简化版
NAME="eth0"
DEVICE="eth0"
ONBOOT=yes
NETBOOT=yes
IPV6INIT=no
BOOTPROTO=none
TYPE=Ethernet
IPADDR=192.168.1.10
PREFIX=24
GATEWAY=192.168.1.254