No Internet in Debian with cable modem

Mario1776 · 07-06-2007, 07:13 PM

I have installed the latest stable version of Debian on my DEC Alpha with a network install using debian-40r0-alpha-netinst.iso.

I had the computer connected to my cable modem during install and I hoped that the networking would be setup automatically, because I'm a complete noob.

I have been booting the computer and logging in while connected to my cable modem but when I try to access the internet it says that I am not connected. I have tried reading the networking chapters of a few linux books, one specifically about Debian, but they all cover dial-up modems, which is not what I have.

If anyone knows how to get Debian to connect to the internet please advise, in detail. Thanks.

farslayer · 07-06-2007, 11:16 PM

first lets see what your network settings are..

open a shell, 'su -' to root, and type the following commands, Paste the output here.

ifconfig -a

cat /etc/resolv.conf

route -n

cat /etc/network/interfaces

Mario1776 · 07-07-2007, 01:03 AM

farslayer
The results for the command "ifconfig -a" can be seen in the following image.
http://img517.imageshack.us/my.php?i...annet01xt7.png

The results for the other three commands can be seen in the following image.
http://img505.imageshack.us/my.php?i...annet02sz6.png

Volhv · 07-07-2007, 12:33 PM

There is network gui in Gnome. You can enable network card from there.

HappyTux · 07-07-2007, 01:35 PM

Try dpkg --purge zeroconf then [/i]/etc/init.d/networking restart[/i] and you might want to edit the /etc/network/interfaces file and put eth1 on the auto line you might even have to change the eth1 to eth0 instances depending on which card is connected to the internet.

Mario1776 · 07-11-2007, 06:54 PM

Quote:

There is network gui in Gnome. You can enable network card from there.

The GUI menu in Gnome has several items that are in some part named "Net", "Network" or "Networking". I found that by selecting "Desktop", then "Administration" and then "Networking" a window displaying my two network cards would be shown. At this window I selected the NIC connected to my cable modem and then clicked a button that said "Activate". This action appears to be permanent and not necessary to perform again unless I should happen to click the button that says "Deactivate".

After activating the NIC I right clicked the "Wired network connection" icon to the left of the clock, in the Gnome system tray at the top-right of the screen. I then selected "Enable Networking". At this point I was able to access the internet. After restarting the computer networking is no longer "enabled", and I must reselect "Enable Networking" to be able to access the internet.

I would like to know how to set Gnome so that networking would be automatically enabled on startup. If you can, please advise.

P.S.
I would also like to know how to "Activate" and "Deactivate" my network card from the command line. If you can, please advise.

P.P.S.
I have not tried the suggestions made by HappyTux. If any of his suggestions would accomplish either of the afore mentioned tasks I am seeking to perform, please clarify which suggestion would do what.

farslayer · 07-11-2007, 10:21 PM

you probably just need to edit your /etc/network/interfaces file

most likely it looks like this..

Code:

default@debian:~$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth1
iface eth1 inet dhcp

you just need to add an entry for your other NIC
something like this..

Code:

default@debian:~$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet dhcp

# The secondary network interface
auto eth1
iface eth1 inet dhcp