problems to activate my ethernet card

[Roberto Antoniazzi - OpenContent]

Hi Tom,
thank you; below my answers

Tom Fernandes wrote:

 > are you using DHCP to get an IP Address?

yes, through a  router and perfectly running in my little LAN

 > if so - try running:
 >
 > sudo dhclient eth0
 > on the commandline to see if it works then.

the result of the command was

No DHCPOFFERS received
No working leases in persistent database - sleeping.
(the configuration of /etc/network/interfaces file was:

mapping hotplug
	script grep
	map eth0

iface eth0 inet dhcp)


 > if not try running the following command on the commandline:
 >
 > sudo ifconfig eth0 192.168.0.20
 > sudo route add default gw 192.168.0.1
 >
 > to make your DNS work you will have to put the following line
 > into /etc/resolv.conf as the first line.
 >
 > nameserver 192.168.0.30
 >
 > You can edit this file by issuing the command:
 >
 > sudo kedit /etc/resolv.conf
 >
 > on the commandline
 >
 > you have to substitute 192.168.0.20 with your IP Address, 192.168.0.1
 > with your gateway and 192.168.0.30 with your DNS Server.

I then tried (after I had disabled dhcp server) with

sudo ifconfig eth0 10.0.0.202
sudo route add default gw 10.0.0.2

and putting the provider nameserver IP in resolv.conf, modifying 
accordingly the  file interfaces

iface eth0 inet static
address 10.0.0.202
netmask 255.255.255.0
network 10.0.0.0
broadcast 10.0.0.255

but without any result. I'd like to try changing the kernel loaded 
modules, but without my
ethernet card and then internet connection it's almost impossible.

If it's a useful information, ping command runs properly with localhost 
while is not running (host unreachable) with the router's IP (10.0.0.2)

It's really a pity, kubuntu works very well also in my old desktop, 
keeping out lan connection ...

Any other ideas?

roberto