[root@PI20P03 network-scripts]# vi ifcfg-enp3s0
DEVICE=”enp3s0″
ONBOOT=yes
BOOTPROTO=static
IPADDR=202.181.25.3
NETMASK=255.255.255.224
GATEWAY=202.181.25.30
IPADDR1=182.237.3.217
NETMASK1=255.255.255.0
DNS1=8.8.8.8
DNS2=8.8.4.4
ARPCHECK=no
NM_CONTROLLED=no
[root@PI20P03 network-scripts]# vi ifcfg-enp3s0-range0
IPADDR_START=45.118.252.1
IPADDR_END=45.118.252.254
NETMASK=255.255.255.0
CLONENUM_START=0
ARPCHECK=no