K 10
svn:author
V 8
pizzamig
K 8
svn:date
V 27
2018-05-23T13:10:57.938813Z
K 7
svn:log
V 412
Improve MAC address uniqueness on if_epair(4).

As reported in PR184149, it can happen that epair devices can have the same
MAC address.
This solution is based on a 32-bit hash, obtained combining the if_index of
the a interface and the hostid.
If the hostid is zero, a random number is used.

PR:		184149
Reviewed by:	wollman, eugen
Approved by:	cognet
Differential Revision:	https://reviews.freebsd.org/D15329

END