Heh, this is amusing. If you boot the box blindly with P-KPX, you can:

* press CTRL-ALT-F2. You are logged in as root (?!)
* type cd /home/knoppix/Desktop/ParallelKnoppix/Setup/
* type ./SetupParallelKnoppix

That will configure the IP of eth0 as 192.168.0.1, and ssh will be running. Then you can ssh into the headless node using
ssh -l knoppix 192.168.0.1 The pw is "parallelknoppix"

The CD was not designed to do this, but it does work - I just tried it out.

M.