There are times where you cannot use WiFi, for example my workplace’s WLAN uses LEAP, which maemo doesn’t support. I found that setting up USB networking on my n800 was a bit of a pain since there isn’t a single document… if you check my del.icio.us feed you’ll see I bookmarked all I could find with a usbnet tag.

These are the steps I ran through to enable usb networking between my nokia n800 and my fedora 7 laptop.