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MasterPorky's questions

Martin Hope
MasterPorky
Asked: 2014-07-15 15:45:38 +0800 CST
  • 11

I left Ubuntu and came back after a while so I don't remember much. Now I'm trying to get my IP address. All I'm getting from running ifconfig is 

eth0      Link encap:Ethernet  HWaddr 3c:97:0e:11:22:0d  
          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:20 Memory:f2500000-f2520000

(BTW, I don't really understand what UP BROADCAST MULTICAST means.)

 $ sudo ifdown eth0 
 ifdown: interface eth0 not configured

Then 

$ sudo ifup eth0
Ignoring unknown interface eth0=eth0

And finally 2: 

$ ip addr show eth0
eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN   
group default qlen 1000 link/ether 3c:97:0e:11:22:0d brd ff:ff:ff:ff:ff:ff
ip