Help: configure networking

[Daniel Carrera]

Hello,

I've installed Edubuntu Dapper LTSP. Next I want to configure 
networking. I have two ethernet cards:

eth0 - connects to the wider network - hardware:Davicom Semiconductor
eth1 - will serve to thin clients    - hardware:Intel 82562EZ

I don't have either of them working right now. I'm starting with eth0. 
This server is inside a Windows network serving DHCP (192.168.0.x) that 
in turn connects to the internet.

I tried the GUI first: sudo network-admin; enable eth0 and set it to 
DHCP. But that didn't do anything. I can't even ping other computers on 
this network:

$ ping 192.168.0.12
PING 192.168.0.82 (192.168.0.82) 56(84) bytes of data.
 From 192.168.0.12 icmp_seq=2 Destination Host Unreachable
 From 192.168.0.12 icmp_seq=3 Destination Host Unreachable

So I tried something manual. I edited /etc/network/interfaces to:

<quote>
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp
</quote>

Then ran /etc/init.d/networking restart, but again, no luck. I got 
several lines of output, but this is what seems relevant:

<quote>
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
...
No DHCPOFFERSreceived
No working leases in persistent database
</quote>

Where the '...' is another 6 lines like the DHCPDISCOVER line but with 
different values for 'interval' (no idea what that means).

I've ruled out any problem outside the computer. I can plugin my laptop 
on the same ethernet cable and connect.

Any help would be really appreciated.

Cheers,
Daniel.
-- 
"It's like a rainbow. Without an observer at a 23 degree angle to
the light reflected a cloud of spherical droplets, there is no
rainbow. The whole universe is like that. Our spirits stand at a
23 degree to the universe."  -- Zoya Boone, Red Mars