Network Settings

[__dave]

Hi,
I recently installed ubuntu 6.06 on my laptop and am having some trouble connecting to the internet through my ethernet card (Ethernet card is detected but connection status is constantly listed as 'idle'). However, upon recently running the Damn Small Linux 2 live CD (which I'm pretty sure is based on Knoppix), the internet worked with no problems at all. So is there any way that I can retrieve the correct settings and use them to connect in Ubuntu?

Thanks.

[AlexK]

From ubuntu, try this:

sudo ifconfig eth0 up
ping -c 10 www.google.com

post back what happens. Also how are you conencted to internet? e.g. DSL modem to router to your computer..

[__dave]

Hi,
I'm connected using a pcmcia ethernet card straight to a DSL modem/router.
I tried the above instructions to ping google but all that came up was
ping: unknown host www.google.com

[AlexK]

ok, what happens when you try to ping you router? Or try pinging using IP addresses e.g. 66.249.89.99 for one of google.com's servers.

[__dave]

Hi,

Since my last post I've managed to get another '3com' ethernet card and can now connect to the internet, but in order to do so, I have to physically eject both ethernet cards after boot up,(deactivate/activate doesn't do much), plug the old xircom one back in, even though I don't plan to use it, and then plug the 3com card I am using in a few seconds later so that it is configured as 'eth1'. I'm not entirely sure why this is seeing as the settings for eth0 and eth1 should be exactly the same.

My /etc/network/interfaces looks like this on startup:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

auto eth1
iface eth1 inet dhcp

auto eth2
iface eth2 inet dhcp

auto ath0
iface ath0 inet dhcp

auto wlan0
iface wlan0 inet dhcp

But after unplugging/plugging the network cards in, it changes itself to this:

auto lo
iface lo inet loopback




auto eth1
iface eth1 inet dhcp

auto eth2
iface eth2 inet dhcp

auto ath0
iface ath0 inet dhcp

auto wlan0
iface wlan0 inet dhcp


iface eth0 inet dhcp

auto eth0


The obvious problem being, as far as I can see, that somewhere along the line it's doing something to the settings for eth0 which I presume is why I can only access the internet through a card called eth1.


I am currently using the eth1 connection to type this post. The Xircom eth0 card doesn't even have a network cable attached.

Any suggestions?