adding vtnet to bridge results to kernel panic

[Peter Grehan]

Hi Nikos,

> I get this panic when I add vtnet0 to a bridge.

  I created a PR for this 
(https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200210) and will look 
into it.

 >Thanks in advance for any ideas,

  tap will work, though, I suspect you're using vtnet to retain a 
config'd IP address when the guest exits ??

later,

Peter.