Public IP for container on different subnet than gateway

[tomp (Thomas Parrott)]

The routed NIC docs do cover which default gateway IPs to use: Linux Containers - LXD - Has been moved to Canonical

But to summarize, you should not be putting your host’s IP as the default gateway, but using 169.254.0.1 as documented.

There’s also some examples over at:

How to get LXD containers get IP from the LAN with routed network

How to use the routed NIC type in LXD. I show how to setup individual LXD profiles with all the configuration in setting up the static IP address in the container. You can use the profile and directly launch a container with routed NIC.

Also I would suggest to not use the br0 interface if you’ve no other reason to have it (its just more complexity which should be avoided where possible).