KVM uses 52:54:00:* MACs:
http://git.savannah.gnu.org/cgit/qemu.git/tree/net.c#n796
ENV{MATCHIFTYPE}="$attr{type}"
# ignore KVM virtual interfaces
ENV{MATCHIFTYPE}="$attr{type}"
# ignore KVM virtual interfaces
-ENV{MATCHADDR}=="54:52:00:*", GOTO="persistent_net_generator_end"
+ENV{MATCHADDR}=="52:54:00:*", GOTO="persistent_net_generator_end"
# These vendors are known to violate the local MAC address assignment scheme
# Interlan, DEC (UNIBUS or QBUS), Apollo, Cisco, Racal-Datacom
# These vendors are known to violate the local MAC address assignment scheme
# Interlan, DEC (UNIBUS or QBUS), Apollo, Cisco, Racal-Datacom