[Bug 254343] 13.0-RC2: adding a vtnet (VirtIO network) interface to bridge fails

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254343

Kristof Provost <kp at freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |kp at freebsd.org

--- Comment #1 from Kristof Provost <kp at freebsd.org> ---
I've had a brief look.

Adding the interface to the bridge fails because it can't enable promiscuous
mode on it.
It's not clear to me if setting promiscuous mode is supposed to work on vtnet
interfaces without CtrlRxMode.
Either way, it looks like the interface flag handling is somewhat buggy as
well, because vtnet interfaces which have been brought up cannot be added, but
those who have not can be.

tl;dr: Needs to be investigated by someone familiar with if_vtnet.

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