Ubuntu: eth0 NO-CARRIER, ifconfig shows no IP address


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   


$ 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  


Try :

ifdown eth0  ifup eth0  ip addr show eth0      **UP BROADCAST MULTICAST**    UP  device is functioning    BROADCAST   device can send traffic to all hosts on the link    MULTICAST   device can perform and receive multicast packets  

More about mulicast visit Site


You might just try setting your IP address to something on your subnet. Assuming you're on a network, try this:

ifconfig address netmask gateway  

Replace with the IP you want to get, and replace with the IP address of your router/gateway.

I have had a similar problem, and this solved it for me.

Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
Next Post »