Ciao, YES, the live CD exists but it uses previous Netkit release (1.4.2). go to http://www.tic.fdns.net/tic/html/lab.html for details (italian) and for many virtual experiences. Take a look, for example, to HA-cluster or Kerberos for Single-Sign-On. There are also firewall virtual experience using Bering uClibC distribution. Good Networking! Regards, Sandro Doro