2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000 link/ether 00:30:67:8f:7c:a8 brd ff:ff:ff:ff:ff:ff
Which maybe means something to someone. ;)
<NO-CARRIER,....,UP> means it's configured to be up, but it doesn't sense an ethernet connectivity.
Check the cables, and the kernel driver.