Duplicate MAC addresses using if_epair(4)

[Luca Pizzamiglio]

Hi all,

some times ago I met this problem, related to possible MAC address
collision using if_epair(4).

I'm not the first one encountering this issue and 2 PR [1][2] are already
filled.
There is also a differential review in phabricator [3] that unfortunately
shows no progress.

Following the approach that hrs@ suggests in [2], I've developed a patch,
submitted in [4], and I hope it will be accepted and integrated soon.
This patch should also solve, or at least mitigate, collisions that olivier@
noted in [1]

Do you know who is the maintainer of this code?
I don't know who can review and possibly commit [4].

thanks in advance

Best regards,
pizzamig

[1] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=176671
[2] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=184149
[3] https://reviews.freebsd.org/D1858
[4] https://reviews.freebsd.org/D15329