problems to activate my ethernet card

Tom Fernandes tom.fernandes at
Mon Mar 21 19:24:02 UTC 2005


On Mon, 2005-03-21 at 14:40 +0100, Roberto Antoniazzi - OpenContent
> Hi all,
> this morning I tried to install kubuntu-hoary in place of ubuntu 
> (perfectly running) on my desktop but I had problems with the ethernet 
> card that seems to be recognized but non activated (while it run 
> properly with ubuntu (warty)).
> Here the output of lspci (regarding ethernet):
> 0000:00:0b.0 Ethernet Controller: Davicom Semiconductor, Inc. 21x4x 
> DEC-Tulip compatible 10/100 Ethernet (rev 40)
> and the output of dmesg:
> eth0: Davicom DM9102/DM9102A rev 64 at 00019400, 00:08:A1:25:AC:2D, IRQ 10.
> dmfe: Davicom DM9xxx net driver, version 1.36.4 (2002-01-17)
> Could you help me?

are you using DHCP to get an IP Address?
if so - try running:

sudo dhclient eth0

on the commandline to see if it works then.

if not try running the following command on the commandline:

sudo ifconfig eth0
sudo route add default gw

to make your DNS work you will have to put the following line
into /etc/resolv.conf as the first line.


You can edit this file by issuing the command:

sudo kedit /etc/resolv.conf

on the commandline

you have to substitute with your IP Address,
with your gateway and with your DNS Server.

depending on wheter you use DHCP or a static IP Address you have to
modify /etc/network/interfaces.

man interfaces

on the commandline should help you with setting this up.


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