can't make ethernet on laptop work, wireless and usb work fine ubuntu 8.10

rz1988 · 01-13-2009, 12:32 PM

I have been running Ubuntu 8.10 for a couple of weeks. I can access wireless networks easily. I can access wired networks easily when the wired is plugged into my usb docking station. But I can not access wired networks when plugged into the ethernet port on my laptop. Any ideas?

repo · 01-13-2009, 12:47 PM

some more info would be usefull
ifconfig
iwconfig
route
firewall?
....

My guess is the firewall though

baig · 01-13-2009, 01:01 PM

hi,

try

Code:

sudo /etc/init.d/networking restart

Code:

sudo ifup eth0

and check

Code:

sudo netstat -rn

and what configuration do have DHCP or static...

explain your problem a bit in depth would make helping you very easy.

Cheers!!

rz1988 · 01-13-2009, 01:02 PM

I am in a motel, so I am not sure about the firewall. I have no problem with windows connecting. It says it connects, but no websites will come up. ifconfig shows it connected, but no data going either way. I have followed the offline help, but since I can't get online my help sources are diluted.

Sorry it is hard to report in depth. I have to restart into windows to get to this site and I have to write down the commands and configurations each time.

farslayer · 01-13-2009, 01:02 PM

Oh in that case it sounds like a DNS issue..

cat /etc/resolv.conf

rz1988 · 01-13-2009, 01:20 PM

baig I get ignoring unknown interface eth0=eth0 It is using the automatic setup, that is what worked on the other 2 connections.

rz1988 · 01-13-2009, 01:21 PM

Quote:

Originally Posted by farslayer

Oh in that case it sounds like a DNS issue..

cat /etc/resolv.conf

I ran the dns choices in the offline help, it connects but gets no throughput.

repo · 01-13-2009, 01:34 PM

Lets start from the beginning.
do you get an ip?

Quote:

ifconfig

can you ping the default gw?
can you ping to the outsite

Quote:

ping 212.100.160.51

can you ping on name?

Quote:

ping www.google.com

rz1988 · 01-13-2009, 01:58 PM

Quote:

Originally Posted by repo

Lets start from the beginning.
do you get an ip?

can you ping the default gw?
can you ping to the outsite

can you ping on name?

I get an ip, it says it connects but no websites will open. After a couple of minutes it shows disconnected.

ifconfig
link encap: ethernet Hw addr 00:16:d4:1b:f3:8b
up broadcast running multicast mtu:64 metric:1
rx packets:3 errors:0 dropped:0 overruns:0 frame:0
tx packets:8 errors:0 dropped:0 overruns:0 frame:0
collisions:0 txqueuelen:1000
rx bytes:1240 (1.2 kb) tx bytes:1921 (1.9 kb)
interrupt:219 base address

x8000

ping 212.100.160.51
network unreachable

ping www.google.com
unknown host

repo · 01-13-2009, 02:02 PM

Quote:

I get an ip

which ip? I don't see any in ifconfig

rz1988 · 01-13-2009, 02:21 PM

Quote:

Originally Posted by repo

which ip? I don't see any in ifconfig

I think I get an ip, but i wrote everything that was in the ifconfig