hi . i do have a laptop samsung r60plus and i installed ubuntu 8.10. unfortunately i cannot ping anywhere even my gw. i can see that ifconfig gives me ip from dhcp. any ideas anyone?

What is the output of ifconfig and route -n
What is the ip of your gateway?

aris@aris-laptop:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:13:77:63:eb:9d
UP BROADCAST RUNNING MULTICAST MTU:64 Metric:1
RX packets:7 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2972 (2.9 KB) TX bytes:2890 (2.8 KB)
Interrupt:18

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:248 errors:0 dropped:0 overruns:0 frame:0
TX packets:248 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:15648 (15.6 KB) TX bytes:15648 (15.6 KB)

aris@aris-laptop:~$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
aris@aris-laptop:~$ ping 4.2.2.2
connect: Network is unreachable
aris@aris-laptop:~$

> i can see that ifconfig gives me ip from dhcp
According to your last post, you did not get an ip from the dhcp server.
You might try manually configuring it: $ sudo ifconfig eth0 <client ip> netmask <255.255.255.0> UP
Then add the default gateway to the route table: $ sudo route add default gw <ip of gateway>
Then test it: $ ping www.google.com

thanks a lot for your reply.
on the top right hand side corner next to the clock there is a 'button' that has two computers. it is exaclty the same as in windows and it gives me information about the network card. it says that i got the ip 10.0.0.7 from gw 10.0.0.2 with mask 255.0.0.0.
unfortunately i cannot find the tool to edit the network configuration file in ubuntu 8.10, as in 8.04. any ideas?

Hi there, glad to see you had the same trouble I have had tonight. I hope you have found this solution but I will post anyway:
I found a couple of warnings about the MTU setting of 64 that is in your ifconfig result (as it was in mine). Thus after setting the network connection manually (DHCP didn't work) I did:

# ifconfig eth0 MTU 1496.

Then I had to right click on the network connection icon next to the clock, uncheck "enable connection" and then check it again.
After doing so the IP address, netmask etc settings were visible in the ifconfig result and the internet connection worked.
Please let me know how you get on.