vim /etc/sysconfig/network-scripts/ifcfg-ens192

TYPE="Ethernet"
PROXY_METHOD="none"
BROWSER_ONLY="no"
BOOTPROTO="dhcp"
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="ens192"
UUID="f10911c2-ce20-48fc-8949-d2135d432877"
DEVICE="ens192"
ONBOOT="yes"
IPADDR="172.x.x.x"
PREFIX="16"
GATEWAY="172.x.0.1"
DNS1="8.8.8.8"
PEERDNS="no"
IPV6_PRIVACY="no"
IPV6ADDR=2019::1/64

TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
#BOOTPROTO=dhcp
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=ens192
UUID=88445fd7-f8ce-47e6-afe6-d53ce31fbacf
DEVICE=ens192
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=172.x.x.x
NETMASK=255.255.0.0
PREFIX=16
GATEWAY=172.x.0.1
DNS1=8.8.8.8
PEERDNS=no
IPV6_PRIVACY=no
IPV6ADDR=2019::2/64