Backup for my solution, detail for networking in dell n4030
Detail is here
http://ubuntuforums.org/showthread.php?t=1505697
the main part is:
1. To detect the ethernet card
- download compat-wireless from http://linuxwireless.org/download/compat-wireless-2.6
-
tar -xjvf compat-wireless-2.6.tar.bz2 cd compat-wireless* scripts/driver-select atl1c make sudo make install
- restart your notebook
2. For wireless
-
sudo apt-get install bcmwl-kernel-source echo wl | sudo tee -a /etc/modules
for mobile broadband modem, alias usb modem
sudo apt-get install usb-modemswitch
Woala