[Bug 278338] bhyve deletes tap LINK0 flag (regression)

From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 13 Apr 2024 02:48:19 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278338

            Bug ID: 278338
           Summary: bhyve deletes tap LINK0 flag (regression)
           Product: Base System
           Version: 13.3-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bhyve
          Assignee: virtualization@FreeBSD.org
          Reporter: pmc@citylink.dinoex.sub.org

change bc6372602a00 is faulty:
bhyve does now at startup delete the LINK0 flag on the tap interface, so IP
adresses are removed when bhyve closes the tap.

This means, each time the client wants to reboot, somebody with access to the
host must freshly set the LINK0 on the tap interface. This is not practical.

Workaround: revert bc6372602a00 and ef161a35012f

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