In this particular case it wasn’t Docker that gave me the headaches, it was OpenWRT and wrapping my head around tagged VLANs.

Once you have the VLANs working on the router and the tagged interfaces up on the server, pointing a Docker network or an LXC at the eth0.100 interface is equally easy.

Now, when I first got the camera I was considering adding a PCI network card to the server and plugging the camera into that, so it would be directly hardwired into the machine running the NVR. If I had done that I was given to understand that taking ownership of a physical NIC would have been much easier with LXC than with Docker.

(We’ll never know because I couldn’t find the PCI network card.)