/lib/udev/rules.d/75-persistent-net-generator.rules
contains exceptions for KVM anf other VM netcards
nano /etc/udev/rules.d/60-my-persistent-net.rules
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="b8:ac:6f:65:31:e5", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="wan0"
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=652660
Voting 0