![MILNET-US-Geographical-1989](https://upload.wikimedia.org/wikipedia/commons/9/94/MILNET-US-Geographical-1989.jpg)
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 networks to implement the TCP/IP protocol suite. Both technologies became the technical fou ...
internetwork
Internetworking is the practice of interconnecting multiple computer networks, such that any pair of hosts in the connected networks can exchange messages irrespective of their hardware-level networking technology. The resulting system of interc ...
designated for unclassified
United States Department of Defense
The United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national secu ...
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
Security is protection from, or resilience against, potential harm (or other unwanted coercive change) caused by others, by restraining the freedom of others to act. Beneficiaries (technically referents) of security may be of persons and social ...
reasons.
Gateways relayed
electronic mail
Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices. Email was thus conceived as the electronics, electronic (digital media, digital) version of, or counterpart to, mail, ...
between the two networks.
BBN Technologies
Raytheon BBN (originally Bolt Beranek and Newman Inc.) is an American research and development company, based next to Fresh Pond in Cambridge, Massachusetts, United States.
In 1966, the Franklin Institute awarded the firm the Frank P. Brown ...
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 The Defense Data Network (DDN) was a computer networking effort of the United States Department of Defense from 1983 through 1995. It was based on ARPANET technology.
History
As an experiment, from 1971 to 1977, the Worldwide Military Command an ...
, a worldwide set of military networks running at different security levels. In the 1990s, MILNET became the
NIPRNET
The Non-classified Internet Protocol (IP) Router Network (NIPRNet) is an IP network used to exchange unclassified information, including information subject to controls on distribution, among the private network's users. The NIPRNet also provide ...
.
References
Wide area networks
History of telecommunications in the United States
DARPA
Military communications
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