On Sat, 25 Oct 2025 at 19:17, Charles Curley <[email protected]> wrote:
> I did a fresh installation of Debian 13 (trixie), and then tried to > install what I need for virtual machines: > > apt install bridge-utils virt-manager dnsmasq-base > > I then try to start the default virtual network, and get an error > message that the network is already in use by interface wlp1s0. Running > "ip a" shows only the hardware interfaces and lo. The default network > is looking for virbr0, which does not exist. > > I should also have two new zones for libvirt in firewalld; they are > absent. > > What am I missing? Hi, maybe have a look at: https://wiki.debian.org/NetworkConfiguration#Bridging https://wiki.debian.org/BridgeNetworkConnections You don't mention that you ran 'brctl' or configured /etc/network/interfaces , did you do that? What software is managing your network: ifupdown, systemd, something else? (I'm not an expert and I haven't done this for some time, but maybe it helps)
