Re: virt-manager and qemu: virtual networking missing
On Mon, 27 Oct 2025 15:48:20 -0400
Jeffrey Walton <noloader@gmail.com> wrote:
> > I see that [3] says: "Note that a bridge cannot be established
> > over Wi-Fi networks operating in Ad-Hoc or Infrastructure modes."
> > ... not sure exactly what that means or if it affects your
> > situation.
>
> In practice, that means you have to use the virtual bridge interface
> (virbr0) when using Wifi. You cannot use a bridge interface (br0).
Except that it appears one cannot do that under trixie. At least that
is my experience so far.
>
> And if you want your guest VM to obtain a DHCP address from a DHCP
> server on your LAN, then you must use bridge interface (br0). You
> cannot use a virtual bridge interface (virbr0).
Apparently so. I haven't found a way to do that for libvirt. I've found
plenty of instructions on how to bridge two physical IFs (e.g. eth0 and
eth1), but that doesn't help me.
>
> (Personally, I have never understood the restrictions. I just know
> they exist.)
And why is this so complicated? It's not rocket surgery.
--
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