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Date:      Thu, 04 Jun 2020 15:43:13 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 246879] Kernel module vmm and sysctl net.link.tap.up_on_open=1
Message-ID:  <bug-246879-27103-3LdbDGxARt@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-246879-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-246879-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=246879

Mark Johnston <markj@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|New                         |Closed
         Resolution|---                         |Not A Bug

--- Comment #3 from Mark Johnston <markj@FreeBSD.org> ---
(In reply to Brandon Helsley from comment #2)
What exactly is the bug?  Indeed, vmm needs to be loaded on the system before
you can use bhyve at all.  It can be loaded using loader.conf or with kldload. 
If you use a bhyve wrapper script like vmrun, this will be done automatically.

net.link.tap.up_on_open=1 needs to be set if you are using a tap interface on
the host to pass packets through to the virtual network interface in the guest.
 That is documented:
https://www.freebsd.org/doc/handbook/virtualization-host-bhyve.html

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