In computer networking, MILNET (fully Military Network) was the name given to the part of the

ARPANET The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the tec ...

internetwork designated for unclassified

United States Department of Defense The United States Department of Defense (DoD, USDOD, or DOD) is an United States federal executive departments, executive department of the federal government of the United States, U.S. federal government charged with coordinating and superv ...

traffic.DEFENSE DATA NETWORK NEWSLETTE
DDN-NEWS 26
6 May 1983 MILNET was physically separated from the ARPANET in 1983. The ARPANET remained in service for the academic research community, but direct connectivity between the networks was severed for security reasons. Gateways relayed

electronic mail Electronic mail (usually shortened to email; alternatively hyphenated e-mail) is a method of transmitting and receiving Digital media, digital messages using electronics, electronic devices over a computer network. It was conceived in the ...

between the two networks.

BBN Technologies Raytheon BBN (originally Bolt, Beranek and Newman, Inc.) is an American research and development company based in Cambridge, Massachusetts. In 1966, the Franklin Institute awarded the firm the Frank P. Brown Medal, in 1999 BBN received the ...

built and managed both the MILNET and the ARPANET and the two networks used very similar technology. It is also known as "Military Net." During the 1980s the MILNET expanded as part of the Defense Data Network, a worldwide set of military networks running at different security levels. In the 1990s, MILNET became the NIPRNET.

References

Wide area networks History of telecommunications in the United States DARPA Military communications {{US-mil-stub