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Author Topic: Eth0 problem  (Read 5073 times)

festr

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Eth0 problem
« on: 13 October 2011, 08:08:11 pm »

Hi,

I've just ordered two of dreamplugs with Ubuntu 9.04 preinstalled. I've problem with eth0 which is not working on one of the device. eth1 works just fine but eth0 cant receive dhcp offer and also static IP address is not working. Led control seems to be ok and mii-tool also reports link is up. eth1 on both devices is ok. Any idea what can be wrong? How to check that it is HW issue? Thanks in advance.

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Confusticated

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Re: Eth0 problem
« Reply #1 on: 13 October 2011, 08:56:20 pm »

Swap the plugs over (so you know its on a good network cable).
Monitor the network traffic with something like wireshark to see if it is sending DHCP requests.
May also be worth swapping SDHC Cards over.
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Advocatus Diaboli - My agenda is not to give you the answer, but to guide your thoughts so you derive it for yourself!

festr

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Re: Eth0 problem
« Reply #2 on: 13 October 2011, 08:59:07 pm »

I've just restarted it and eth0 is working now so I'm happy that port is not dead. But what I did when it did not worked was this:

mii-tool
(eth0 showed UP)
ip a a 10.0.0.3/24 brd + dev eth0
ping 10.0.0.1 - no ARP to GW

cable swapped to eth1 - dhcp immediately worked.

cable swapped back to eth0
the same problem - no communication at all

I'm suspending this thread as it works now. Once I will get into the same situation I will try more.

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bontheone

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Re: Eth0 problem
« Reply #3 on: 05 July 2012, 09:59:46 am »

Hi Festr,

Did you solve this issue, as I am having exactly the same problem,

Thanks,

Ian
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