Just Do It !
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-ens33
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
UUID=4e333024-b8c8-45e4-baee-e46ece81432c
DEVICE=ens33
ONBOOT=yes
IPADDR=192.168.220.200
NETMASK=255.255.255.0
GATEWAY=192.168.220.2
DNS1=8.8.8.8