Howto NetworkManager

install NetworkManager

make sure you have network-manager installed:

yum install networkmanager -y

start and enable NetworkManager:

systemctl enable NetworkManager && systemctl start NetworkManager

add address to ethernet

add ip address to your eth0 interface:

nmcli con add con-name eth0 ipv4.method manual type ethernet ifname eth0 ipv4.addresses 192.168.75.15/24 ipv4.gateway 192.168.75.1 ipv4.dns 4.2.2.1,4.2.2.2 autoconnect yes

enable network interface eth0:

nmcli connection up eth0

create bridge interface

create the bridge interface:

nmcli connection add type bridge autoconnect yes con-name br0 ifname br0

add ip address to bridge interface:

nmcli connection modify br0 ipv4.addresses 192.168.75.15 ipv4.method manual ipv4.gateway 192.168.75.1 ipv4.dns 4.2.2.1,4.2.2.2

add device to bridge:

nmcli connection delete eth0
nmcli connection add type bridge-slave autoconnect yes con-name eth0 ifname eth0 master br0

active bridge interface:

nmcli connection up br0