A national intranet is a IP (Internet Protocal) based self-contained internet under state control. Considered a form of governmental Internet Fragmentation, intranets limit user access to the global internet. This is made possible by blocking certain IP addresses, limiting bandwidth and offering a suite of state-issued software and services such as browsers and email. [1] [2] [3] [4]

Iran's Halal Internet - Yooz

Cuba

Golden Shield Protect - China's Great Firewall

References