Re: virt-manager and qemu: virtual networking missing
On Tue 28/10/2025 at 01:31, Gareth Evans <donotspam@fastmail.fm> wrote:
> Thus the virtual network driver in libvirt was invented. This takes the form of an isolated bridge device (ie one with no physical NICs attached). The TAP devices associated with the guest NICs are attached to the bridge device.
> This immediately allows guests on a single host to talk to each other and to the host OS (modulo host IPtables rules)."
> ^^^ THIS DOESN'T SEEM TO BE TRUE (any more, nor for a number of years) ^^^
> https://libvirt.org/firewall
Actually I misread the bit I commented on there. "Modulo host iptables rules" is the bit I have never succeeded with. That may be due to my lack of sufficient persistence, but "immediately" seems a bit much in any case ;)
G
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