我的网卡状态是
eth0 Link encap:Ethernet HWaddr 00:0C:29:F3:3B:F2
inet addr:172.19.56.210 Bcast:172.19.56.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0(0.0 b) TX bytes:0(0.0 b)
Interrupt:177
第三行的状态UP BROADCAST MULTICAST 而非UP BROADCAST RUNNING MULTICAST
需要做什么设置才能激活eth0?