Recently, my ubuntu box encountered a power failure. After rebooting, the HWAddress of eth0 is showing a very weird number: 00:00:00:00:00:30. I have tried
sudo ifconfig eth0 down &
sudo ifconfig eth0 up. Also, my ubuntu box is no longer acquire IP address from the DHCP server (A Buffalo Router) any more. What's wrong? How should I deal with such?
Sorry for any mislead this question may cause. I actually see the HWAddress of eth1 instead of eth0. I looked at /etc/udev/rules.d/70-persistent-net.rules and found that there are two entries, one for
00:00:80:00:00:30 which basically assign my LAN card to
eth0 and another entry for
00:00:00:00:00:30 which assign my LAN card to
eth1. I guess my LAN card is broken?