Question: Interface renaming with physical networking

LXC
1

Hi forum,

I currently use lxc 3.0.1 and have the options
lxc.net.0.type=phys
lxc.net.0.link=wlo1
lxc.net.0.name=wlan0
in my container config. So I am using the host-interface wlo1 and rename it to wlan0
in my container. When I stop the container, the interface is handed back to
the host namespace, but is still named wlan0. Which option do I have to add in my config,
so the container changes the name of the interface back to wlo1 again, when it is being destroyed?

Thanks in advance for helping.

2

Hi,

This is a known issue unfortunately.

This got partially fixed for live-detaching here: https://github.com/lxc/lxc/pull/3107/commits/e4103cf63f3e24667680544303e7c7230b3d508c

However stop-time rename in LXC still exists as an issue. It is on my list to look at though :slight_smile:

If you want it to not change names in the short term the best/only thing to do is to set the .name property to the same as it is on the host, i.e wl01 so its the same inside the container.

Thanks
Tom

3

I’ve logged the issue here https://github.com/lxc/lxc/issues/3131 where you can track it if you like.