p1p1 is Fedora 20 default ethernet interface name.
Comparing to traditional “eth0”, p1p1 is very different.
Mac address of p1p1 is 00:00:00:00:00 by default. The driver is not problem actually, however, I don’t know why Mac address is 00.
ifconfig p1p1 hw ether 02:01:02:03:04:08
ifconfig p1p1 up
then interface p1p1 will up and get ip address from dhcp server automatically.