[root@centos7 ~]# ip a | grep 'inet '
    inet 127.0.0.1/8 scope host lo
    inet 10.0.2.16/24 brd 10.0.2.255 scope global enp0s3
[root@centos7 ~]# ip a add 192.168.1.99/24 dev enp0s3
[root@centos7 ~]# ip a | grep 'inet '
    inet 127.0.0.1/8 scope host lo
    inet 10.0.2.16/24 brd 10.0.2.255 scope global enp0s3
    inet 192.168.1.99/24 scope global enp0s3