For our Government users, we also provide SIPRNET and NIPRNET, (also known as SIPERNET and NIPERNET), connectivity products. SIPRNET and NIPRNET products are manufactured in accordance with Government specifications.
Secret Internet Protocol Router Network (SIPRNET)SIPRNET replaces the DDN DSNET1 as the SECRET portion of DISN. Its complete architecture will be achieved by constructing a new worldwide backbone router system. The primary method for secret-level network connectivity is via Base secret-level networks which in turn provide Base Router connectivity to SIPRNET. Various DOD router services and systems will migrate onto the SIPRNET backbone router network to serve the long-haul data transmission needs of the users. Transmission services will use smart multiplexer and 512 kilobits per second (kbps) channels. Other transmission services will be acquired or leased as needed. Future expansion will progress to the T1 circuit data rate of 1.544 Megabits (Mbps) and potentially to the T3 data rate of 45 Mbps. High speed packet switched service will be provided through the use of IP routers. This SECRET router layer of the DISN is intended to support national defense C3I requirements, to include the issuing of COMSEC keys used with the STU-III to make secure dial-up SIPRNET comm server connections.
The Secret Internet Protocol Router Network (SIPRNET) has matured to be the core of our warfighting command and control capability. Many expeditionary commanders ask for SIPRNET ahead of secure voice when deploying their forces. SIPRNET is fast becoming the defacto standard of preferred data services, even over NIPRNET. The SIPRNET is the new, worldwide router-based network replacing the older X.25-based packet switched network (the Defense Secure Network One (DSNET1) of the Defense Data Network (DDN)). The initial SIPRNET backbone router network went online 3 March 1994. Subscribers started coming on line shortly thereafter. The SIPRNET WAN (as of 31 May 1995) consisted of a collection of 31 backbone routers interconnected by high-speed serial links to serve the long-haul data transport needs of secret-level DoD subscribers. Additional SIPRNET backbone routers are being planned to meet increased customer requirements. SIPRNET supports the DoD standard Transmission Control Protocol/Internet Protocol (TCP/IP) protocol service. Subscribers within the DoD and other Government Agencies are able to use the SIPRNET for passing datagrams at the Secret-Not Releasable to Foreign Nationals (SECRET-NOFORN) classification level.
The SIPRNet (Secret [formerly Secure] Internet Protocol Router Network) is a system of interconnected computer networks used by the U.S. Department of Defense and the U.S. Department of State to transmit classified information (up to and including information classified SECRET) by packet switching over the TCP/IP protocols in a "completely secure" environment. It also provides services such as hypertext documents and electronic mail. In other words, the SIPRNet is the DoD’s classified version of the civilian Internet together with its counterpart, the Top Secret and SCI Joint Worldwide Intelligence Communications System, JWICS.
Except for existing within a secure environment, the SIPRNet is virtually indistinguishable from the Internet to the user. Its chief visible difference is the domain name system, with almost all sites being under '.smil.mil' or '.sgov.gov' . Among its many features, computers cleared for SIPRNet access connect to the network via secure dial-up or LAN connections, access web pages written in standard HTML using a standard web browser, can upload and download files via FTP connections, and can send or receive email messages through SMTP services using email programs such as Microsoft Outlook. All data transmitted on SIPRNet between secure facilities must be encrypted by approved NSA encryption systems. While the public Internet can be used to transmit encrypted SIPRNet packets ("SIPR over NIPR"), no access is permitted between the two networks.
SIPRNet and NIPRnet are referred to colloquially as SIPR (pronounced 'sipper') and NIPR (pronounced 'nipper'), respectively.
SIPRNet hosts a forum called CAVNET which is used in Iraq to share Tactics, Techniques, and Procedures data.
SIPRNet supersedes the earlier DSNET 1, the SECRET level of the Defense Data Network based on ARPANET technology.
NIPRNet (Non-classified Internet Protocol Router Network) (formerly called the Non-secure Internet Protocol Router Network). NIPRNET is used to exchange unclassified but sensitive information between "internal" users as well as providing users access to the Internet. NIPRNet is comprised of Internet protocol routers owned by the United States Department of Defense (DOD). It was created by the Defense Information Systems Agency (DISA) to supersede the earlier MILNET.
NIPRNet is, by design, a parallel airgapped analogue to the SIPRNET, providing seamless interoperability for unclassified combat support applications, as well as providing a gateway to the public Internet. While the two networks are not intended to logically intersect, occasionally it is seen as necessary to tunnel the encrypted SIPRNET over NIPRNet ("SIPR over NIPR").
SIPRNet and NIPRnet are referred to colloquially as sipper-net and nipper-net, respectively.
Data rates range
from 56 kb/s to 622 Mb/s, along with remote dial-up services,
also at 56 kbit/s.