It's the blind leading the blind here. Netcard config is a GUI application, it can be run from the Knoppix menu or from the shell (linux-speak for cli) by the command netcardconfig. The first question asked is "use dhcp?". If you say no it asks for the info.

Now, my dumb questions: you keep using the word "dialer". Are you on dial-up? I'm not at all understanding what your all in all its a big lan statement is telling me. Are you perhaps at a school or some other place where you really would have a big lan? Did someone give you an IP address that they have told you needs to be put in your system before connecting (if so you should be able to enter it and the other related info with netcardconfig, but them I'm totally confused why you would use anything with pppoe in it's name).