Nmcli bridge

• Nmcli bridge externes Interface
• Nmcli bridge Dummy Interface

Dummy Device

• nmcli connection add type dummy ifname dummy0
• nmcli connection add type dummy ifname dummy0 ipv4.addresses 10.0.1.1/24

Dummy Arp Workaround

• vi /etc/NetworkManager/dispatcher.d/pre-up.d/dummy.sh

#!/bin/bash
if test "$1" = "dummy0"
then
 if test "$2" = "pre-up"
 then
 ip link set dummy0 arp on
 fi
fi