two network card issues on rawhide upgrade

["Antonio M" <antonio montagnani gmail com>]

I upgraded one of my router from F9 to rawhide (F10).
Well I got a message stating that Mac address were wrong, I made a autodetect, then eth0 became eth1 and eth1 eth0 (i.e. eth0 was the internal network card and became the Internet card, the reverse for eth0)
Of course I had to change eth0 in eth1 and viceversa also in iptables!!!

What is the component to blame???

--
Antonio Montagnani
Skype : antoniomontag