two network card issues on rawhide upgrade

[Antonio M]

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
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