OpenNIC. P2P Dns. Roofnet [MIT Roofnet] News Most of the roofnet team is on sabbatical at Meraki Networks . Note: the Roofnet team is not involved with the City of Cambridge/ MIT wireless project. Please contact the IS department if you are looking for information about the city-wide network. About Roofnet is an experimental 802.11b/g mesh network in development at MIT CSAIL which provides broadband Internet access to users in Cambridge.