Metanet est un réseau informatique décentralisé, similaire à Freenet dans l'intention, mais pas la mise en œuvre. Metanet il est difficile de découvrir l'identité des utilisateurs sur le réseau leur permettant d'accueillir

This is quite common around Hamilton - a lot of WLUG members are on the MetaNet.  Since you get assigned a set of (non-real-world) IP addresses, you can talk to other peoples machines directly, not worrying about NAT and worrying only vaguely about firewalls.  The great advantage of this, apart from the potential for scientific experimentation, is that if I'm at your house and we are both on the MetaNet, I can access my network as if I was local to it.