[PLUG] Ubuntu: Testing Wired Network Connectivity - Simple Method

[Jeff Kirsher]

On 12/04/2012 02:02 PM, Mike C. wrote:
> Reading through the threads I realized this has become somewhat of a
> convoluted topic. I wanted to figure out a sure-fire, quick and simple
> approach not only for Rich but for myself and others that could be followed
> and would help folks determine where the problem might be.
>
> So here's the method, I've come up with.
>
> 1. Run the command "ifconfig" from a terminal shell.
>    It the command results show an "eth" interface with a "HWaddr" then the
> OS sees the NIC. Which means the NIC drvier module is loaded. Go to step 5
> *
> *
> *ifconfig eth0*
> *eth0      Link encap:Ethernet  HWaddr 00:1c:25:18:3c:78  *
> *          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:fe000000-fe020000 *
>
> 2. If you don't see any "eth" interfaces listed then run the command "dmesg
> | grep Ethernet" to get information on the physical card
>
> *lspci | grep Ethernet*
> *00:19.0 Ethernet controller: Intel Corporation 82566MM Gigabit Network
> Connection (rev 03)*
> *
> *
> 3.* *Then run the command "dmesg | grep Network" to get driver information
> *
> *
> *dmesg | grep Network*
> *[    1.382194] e1000e: Intel(R) PRO/1000 Network Driver - 1.5.1-k*
(Really off-topic) but you are running a old version of e1000e, the
latest is version 2.1.4 :-)

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