udev: renamed network interface eth0 to eth1

[Guo Jiahua <gjhdgm@gmail.com>]

I don't know why udev renames the name of my network interface


---an item in /var/log/syslog :

kernel: [    6.949035] udev: renamed network interface eth0 to eth1

---an iten in /etc/network/interfaces :

auto eth0
iface eth0 inet manual
pre-up /sbin/ifconfig $IFACE hw ether 00:11:5b:cf:fe:ce