[Bug 229957] [epair] MAC addresses all the same, no randomness

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229957

--- Comment #2 from Eugene Grosbein <eugen at freebsd.org> ---
Assuming you create epairs using "host" environment (not within some jail),
please temporary wrap your epair creation procedure to verify if mentioned
change is really a root of the problem:

savedid=$(sysctl -n kern.hostid)
sysctl kern.hostid=0
<insert your epair creation here>
sysctl kern.hostid=savedid

This way, epair(4) should add some randomness to created MAC due to zero
hostid. Please report if this changes results.

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