Thinkpad problems mean that I’m currently borrowing a T42 from work. It took me a while to get WPA working with Knoppix 5.1.1. Here are the magic incantations required:
eth1 in the list above with whatever network interface name Knoppix has assigned to your wireless card (reading through the output of
dmesg should help you with this). Don’t forget to double-check that your router has the MAC address of the card (use
ifconfig to find this) if you’re using MAC address filtering.