Hello list, until now all my bridges were on top of a raw ethernet device. My tap devices worked fine.
Now ihad moved my bridge on top of a bond but then no tap device is working. My old Ubuntu/Debian style interfaces file looked like this: auto vmbr0 iface vmbr0 inet manual bridge_ports eth0 bridge_stp off bridge_fd 0 <= this worked fine. Now my new one looked like this: auto bond0 iface bond0 inet manual slaves eth0 eth1 bond_mode 802.3ad bond_miimon 100 bond_updelay 200 bond_downdelay 100 auto vmbr0 iface vmbr0 inet static address 178.250.XX netmask 255.255.255.128 gateway 178.250.XX bridge_ports bond0 bridge_stp off bridge_fd 0 <= this one results on no connection for the VM. But the host is reachable fine via his address. Stefan