Proxmox 加入 dummy

echo dummy >>/etc/modules;
cat <<EOF>/etc/network/interfaces

up ip link add dummy0 type dummy

up ip link set dummy0 multicast on

iface dummy0 inet manual

auto vmbr10
iface vmbr10 inet manual
        bridge-ports dummy0
        bridge-stp off
        bridge-fd 0
EOF

reboot;