How to get network working in virt-manager qemu vm?

General system Newbie
1

I setup virt-manager some years ago, and i don’t remember networking being much of a problem to get running although I don’t remember exactly how I did it then…

But now, i’m trying to set it up again (fresh install of virt-manager and new vm), and I just cannot get it working.

What I tried was using the default nat network connection provided by virt-manager, turning it on, configuring the vm to use it and turning the vm on, but in the VM I don’t get any internet, and perhaps quite damningly, in the virt-manager ui it says ‘ip address: unknown’.

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I tried with both virtio and hypervisor default models, and I tried changing the bridge from “any physical device” to wlan0 (my wireless network device) to open up a bridge directly to a physical card but neither seems to want to work. Am I doing something wrong? missing a step maybe?

The arch wiki said something about configuring /etc/qemu/bridge.conf and, well, that file didn’t exist (not in /usr/share/qemu either) but I created it and added an ‘allow virbr0’ line, it didn’t seem to change anything.

2

Have you ran this command? It autostarts the “default” network that is used for virtual machines with virt-manager.

sudo virsh net-autostart default

Then reboot.

1 Like
3

I think i figured it out, mullvad vpn is getting in the way somehow.

It might be the killswitch feature (which cannot be disabled it seems).

If I turn off the vpn the internet in the vm works fine.

Now I wonder how to circumvent this without actually turning off the vpn, or maybe even getting the machine to connect to the vpn instead.

Edit: Enabling local network sharing is one way
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But I’m not a big fan of that route, since i’m often not on my own home network.