I have found that you will need to bring the virtual interface up (the one handled by systemd-nspawn).
Right. I am left after I boot my machine (the host) with this :
4: vb-dahlia:
the host then you can do that easily with a network file. I've called mine vb-veth.network and it contains:
[Match] Name=vb-*
I will try your hack asap
Right now on the host side I have everything being handled only by systemd-{networkd,nspawn}, I don't add any physical interfaces to the bridge Ah? I have two netctl profiles, one for my physical eth (enp7s0) with no ip, one for bridge (br0) with enp7s0 binded to. So you mean you don't have any bridge profile managed by netctl ?
but I suppose that would also be possible to do with
systemd-networkd.