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Operating Systems Linux Ubuntu Error on network card
# 1  
Old 12-23-2014
Error on network card
Hi

Please can you help me to understand what could be wrong based on what I have captured in the logs:
I have run
Code:
cat /var/log/syslog | grep -i warn

, and I got the following output
Code:
NetworkManager[7016]: <warn> Activation (eth3) failed.
Dec 23 10:58:25 cmoveldb02 NetworkManager[7016]: <warn> (eth3): DHCPv4 request timed out.
Dec 23 10:58:25 cmoveldb02 NetworkManager[7016]: <warn> Activation (eth3) failed.

the system is running
Code:
ubuntu 12.04

I have run
Code:
ifconfig -a

, and got the following:
Code:
 ifconfig -a
eth2      Link encap:Ethernet  HWaddr 00:23:8b:41:b4:9c
          inet addr:192.168.6.24  Bcast:192.168.6.31  Mask:255.255.255.224
          inet6 addr: fe80::223:8bff:fe41:b49c/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:761426 errors:0 dropped:0 overruns:0 frame:0
          TX packets:774305 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:139384970 (139.3 MB)  TX bytes:109771872 (109.7 MB)
          Interrupt:16 Memory:fcde0000-fce00000

eth3      Link encap:Ethernet  HWaddr 00:23:8b:41:b4:9d
          inet6 addr: fe80::223:8bff:fe41:b49d/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:346190 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:77978155 (77.9 MB)
          Interrupt:17 Memory:fcd80000-fcda0000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:2325747 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2325747 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:348097678 (348.0 MB)  TX bytes:348097678 (348.0 MB)

# 2  
Old 12-23-2014
Hello fretagi,

You can check to see the status of a DCHP update by running this in a terminal:
Code:
sudo dhclient eth0 # assuming eth0 is your network adapter

That will try and get the network settings up and going and it will tell you what it's trying to do (so if it does make contact and then fails, you should see the result). If it doesn't make contact, you'll see it going on and on and on.

Thanks,
R. Singh
Last edited by rbatte1; 12-23-2014 at 12:04 PM.. Reason: Changed ICODE tags to just CODE tags
# 3  
Old 12-23-2014
I know that these may be a daft questions, but:-
  • What are you expecting?
  • Do you have cables in all the cards, connected to switches etc.?
  • Are your definition files set up (presuming it's /etc/sysconfig/network-scripts/ifcfg-eth3 in this case)
  • Should it/they be DHCP or STATIC addresses?
  • If DHCP, is there a server that can service the DHCP request?
I'm just trying to get a better picture of your needs to make sure we get you the best answers.


Thanks, in advance,
Robin
Last edited by rbatte1; 12-23-2014 at 12:36 PM.. Reason: Added another question
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